* REALM initial commit

* Retriever OK (Update new_gelu).

* Encoder prediction score OK

* Encoder pretrained model OK

* Update retriever comments

* Update docs, tests, and imports

* Prune unused models

* Make embedder as a module `RealmEmbedder`

* Add RealmRetrieverOutput

* Update tokenization

* Pass all tests in test_modeling_realm.py

* Prune RealmModel

* Update docs

* Add training test.

* Remove completed TODO

* Style & Quality

* Prune `RealmModel`

* Fixup

* Changes:
1. Remove RealmTokenizerFast
2. Update docstrings
3. Add a method to RealmTokenizer to handle candidates tokenization.

* Fix up

* Style

* Add tokenization tests

* Update `from_pretrained` tests

* Apply suggestions

* Style & Quality

* Copy BERT model

* Fix comment to avoid docstring copying

* Make RealmBertModel private

* Fix bug

* Style

* Basic QA

* Save

* Complete reader logits

* Add searcher

* Complete searcher & reader

* Move block records init to constructor

* Fix training bug

* Add some outputs to RealmReader

* Add finetuned checkpoint variable names parsing

* Fix bug

* Update REALM config

* Add RealmForOpenQA

* Update convert_tfrecord logits

* Fix bugs

* Complete imports

* Update docs

* Update naming

* Add brute-force searcher

* Pass realm model tests

* Style

* Exclude RealmReader from common tests

* Fix

* Fix

* convert docs

* up

* up

* more make style

* up

* upload

* up

* Fix

* Update src/transformers/__init__.py

* adapt testing

* change modeling code

* fix test

* up

* up

* up

* correct more

* make retriever work

* update

* make style

* finish main structure

* Resolve merge conflict

* Make everything work

* Style

* Fixup

* Fixup

* Update training test

* fix retriever

* remove hardcoded path

* Fix

* Fix modeling test

* Update model links

* Initial retrieval test

* Fix modeling test

* Complete retrieval tests

* Fix

* style

* Fix tests

* Fix docstring example

* Minor fix of retrieval test

* Update license headers and docs

* Apply suggestions from code review

* Style

* Apply suggestions from code review

* Add an example to RealmEmbedder

* Fix

Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
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Li-Huai (Allan) Lin 2022-01-18 20:24:13 +08:00 committed by GitHub
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@ -291,6 +291,7 @@ Min, Patrick Lewis, Ledell Wu, Sergey Edunov, Danqi Chen, and Wen-tau Yih.
1. **[PhoBERT](https://huggingface.co/docs/transformers/model_doc/phobert)** (from VinAI Research) released with the paper [PhoBERT: Pre-trained language models for Vietnamese](https://www.aclweb.org/anthology/2020.findings-emnlp.92/) by Dat Quoc Nguyen and Anh Tuan Nguyen.
1. **[ProphetNet](https://huggingface.co/docs/transformers/model_doc/prophetnet)** (from Microsoft Research) released with the paper [ProphetNet: Predicting Future N-gram for Sequence-to-Sequence Pre-training](https://arxiv.org/abs/2001.04063) by Yu Yan, Weizhen Qi, Yeyun Gong, Dayiheng Liu, Nan Duan, Jiusheng Chen, Ruofei Zhang and Ming Zhou.
1. **[QDQBert](https://huggingface.co/docs/transformers/model_doc/qdqbert)** (from NVIDIA) released with the paper [Integer Quantization for Deep Learning Inference: Principles and Empirical Evaluation](https://arxiv.org/abs/2004.09602) by Hao Wu, Patrick Judd, Xiaojie Zhang, Mikhail Isaev and Paulius Micikevicius.
1. **[REALM](https://huggingface.co/transformers/master/model_doc/realm.html)** (from Google Research) released with the paper [REALM: Retrieval-Augmented Language Model Pre-Training](https://arxiv.org/abs/2002.08909) by Kelvin Guu, Kenton Lee, Zora Tung, Panupong Pasupat and Ming-Wei Chang.
1. **[Reformer](https://huggingface.co/docs/transformers/model_doc/reformer)** (from Google Research) released with the paper [Reformer: The Efficient Transformer](https://arxiv.org/abs/2001.04451) by Nikita Kitaev, Łukasz Kaiser, Anselm Levskaya.
1. **[RemBERT](https://huggingface.co/docs/transformers/model_doc/rembert)** (from Google Research) released with the paper [Rethinking embedding coupling in pre-trained language models](https://arxiv.org/pdf/2010.12821.pdf) by Hyung Won Chung, Thibault Févry, Henry Tsai, M. Johnson, Sebastian Ruder.
1. **[RoBERTa](https://huggingface.co/docs/transformers/model_doc/roberta)** (from Facebook), released together with the paper a [Robustly Optimized BERT Pretraining Approach](https://arxiv.org/abs/1907.11692) by Yinhan Liu, Myle Ott, Naman Goyal, Jingfei Du, Mandar Joshi, Danqi Chen, Omer Levy, Mike Lewis, Luke Zettlemoyer, Veselin Stoyanov.

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@ -270,6 +270,7 @@ Flax, PyTorch, TensorFlow 설치 페이지에서 이들을 conda로 설치하는
1. **[PhoBERT](https://huggingface.co/docs/transformers/model_doc/phobert)** (from VinAI Research) released with the paper [PhoBERT: Pre-trained language models for Vietnamese](https://www.aclweb.org/anthology/2020.findings-emnlp.92/) by Dat Quoc Nguyen and Anh Tuan Nguyen.
1. **[ProphetNet](https://huggingface.co/docs/transformers/model_doc/prophetnet)** (from Microsoft Research) released with the paper [ProphetNet: Predicting Future N-gram for Sequence-to-Sequence Pre-training](https://arxiv.org/abs/2001.04063) by Yu Yan, Weizhen Qi, Yeyun Gong, Dayiheng Liu, Nan Duan, Jiusheng Chen, Ruofei Zhang and Ming Zhou.
1. **[QDQBert](https://huggingface.co/docs/transformers/model_doc/qdqbert)** (from NVIDIA) released with the paper [Integer Quantization for Deep Learning Inference: Principles and Empirical Evaluation](https://arxiv.org/abs/2004.09602) by Hao Wu, Patrick Judd, Xiaojie Zhang, Mikhail Isaev and Paulius Micikevicius.
1. **[REALM](https://huggingface.co/transformers/master/model_doc/realm.html)** (from Google Research) released with the paper [REALM: Retrieval-Augmented Language Model Pre-Training](https://arxiv.org/abs/2002.08909) by Kelvin Guu, Kenton Lee, Zora Tung, Panupong Pasupat and Ming-Wei Chang.
1. **[Reformer](https://huggingface.co/docs/transformers/model_doc/reformer)** (from Google Research) released with the paper [Reformer: The Efficient Transformer](https://arxiv.org/abs/2001.04451) by Nikita Kitaev, Łukasz Kaiser, Anselm Levskaya.
1. **[RemBERT](https://huggingface.co/docs/transformers/model_doc/rembert)** (from Google Research) released with the paper [Rethinking embedding coupling in pre-trained language models](https://arxiv.org/pdf/2010.12821.pdf) by Hyung Won Chung, Thibault Févry, Henry Tsai, M. Johnson, Sebastian Ruder.
1. **[RoBERTa](https://huggingface.co/docs/transformers/model_doc/roberta)** (from Facebook), released together with the paper a [Robustly Optimized BERT Pretraining Approach](https://arxiv.org/abs/1907.11692) by Yinhan Liu, Myle Ott, Naman Goyal, Jingfei Du, Mandar Joshi, Danqi Chen, Omer Levy, Mike Lewis, Luke Zettlemoyer, Veselin Stoyanov.

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@ -294,6 +294,7 @@ conda install -c huggingface transformers
1. **[PhoBERT](https://huggingface.co/docs/transformers/model_doc/phobert)** (来自 VinAI Research) 伴随论文 [PhoBERT: Pre-trained language models for Vietnamese](https://www.aclweb.org/anthology/2020.findings-emnlp.92/) 由 Dat Quoc Nguyen and Anh Tuan Nguyen 发布。
1. **[ProphetNet](https://huggingface.co/docs/transformers/model_doc/prophetnet)** (来自 Microsoft Research) 伴随论文 [ProphetNet: Predicting Future N-gram for Sequence-to-Sequence Pre-training](https://arxiv.org/abs/2001.04063) 由 Yu Yan, Weizhen Qi, Yeyun Gong, Dayiheng Liu, Nan Duan, Jiusheng Chen, Ruofei Zhang and Ming Zhou 发布。
1. **[QDQBert](https://huggingface.co/docs/transformers/model_doc/qdqbert)** (来自 NVIDIA) 伴随论文 [Integer Quantization for Deep Learning Inference: Principles and Empirical Evaluation](https://arxiv.org/abs/2004.09602) 由 Hao Wu, Patrick Judd, Xiaojie Zhang, Mikhail Isaev and Paulius Micikevicius 发布。
1. **[REALM](https://huggingface.co/transformers/master/model_doc/realm.html)** (来自 Google Research) 伴随论文 [REALM: Retrieval-Augmented Language Model Pre-Training](https://arxiv.org/abs/2002.08909) 由 Kelvin Guu, Kenton Lee, Zora Tung, Panupong Pasupat and Ming-Wei Chang 发布。
1. **[Reformer](https://huggingface.co/docs/transformers/model_doc/reformer)** (来自 Google Research) 伴随论文 [Reformer: The Efficient Transformer](https://arxiv.org/abs/2001.04451) 由 Nikita Kitaev, Łukasz Kaiser, Anselm Levskaya 发布。
1. **[RemBERT](https://huggingface.co/docs/transformers/model_doc/rembert)** (来自 Google Research) 伴随论文 [Rethinking embedding coupling in pre-trained language models](https://arxiv.org/pdf/2010.12821.pdf) 由 Hyung Won Chung, Thibault Févry, Henry Tsai, M. Johnson, Sebastian Ruder 发布。
1. **[RoBERTa](https://huggingface.co/docs/transformers/model_doc/roberta)** (来自 Facebook), 伴随论文 [Robustly Optimized BERT Pretraining Approach](https://arxiv.org/abs/1907.11692) 由 Yinhan Liu, Myle Ott, Naman Goyal, Jingfei Du, Mandar Joshi, Danqi Chen, Omer Levy, Mike Lewis, Luke Zettlemoyer, Veselin Stoyanov 发布。

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@ -306,6 +306,7 @@ conda install -c huggingface transformers
1. **[PhoBERT](https://huggingface.co/docs/transformers/model_doc/phobert)** (from VinAI Research) released with the paper [PhoBERT: Pre-trained language models for Vietnamese](https://www.aclweb.org/anthology/2020.findings-emnlp.92/) by Dat Quoc Nguyen and Anh Tuan Nguyen.
1. **[ProphetNet](https://huggingface.co/docs/transformers/model_doc/prophetnet)** (from Microsoft Research) released with the paper [ProphetNet: Predicting Future N-gram for Sequence-to-Sequence Pre-training](https://arxiv.org/abs/2001.04063) by Yu Yan, Weizhen Qi, Yeyun Gong, Dayiheng Liu, Nan Duan, Jiusheng Chen, Ruofei Zhang and Ming Zhou.
1. **[QDQBert](https://huggingface.co/docs/transformers/model_doc/qdqbert)** (from NVIDIA) released with the paper [Integer Quantization for Deep Learning Inference: Principles and Empirical Evaluation](https://arxiv.org/abs/2004.09602) by Hao Wu, Patrick Judd, Xiaojie Zhang, Mikhail Isaev and Paulius Micikevicius.
1. **[REALM](https://huggingface.co/transformers/master/model_doc/realm.html)** (from Google Research) released with the paper [REALM: Retrieval-Augmented Language Model Pre-Training](https://arxiv.org/abs/2002.08909) by Kelvin Guu, Kenton Lee, Zora Tung, Panupong Pasupat and Ming-Wei Chang.
1. **[Reformer](https://huggingface.co/docs/transformers/model_doc/reformer)** (from Google Research) released with the paper [Reformer: The Efficient Transformer](https://arxiv.org/abs/2001.04451) by Nikita Kitaev, Łukasz Kaiser, Anselm Levskaya.
1. **[RemBERT](https://huggingface.co/docs/transformers/model_doc/rembert)** (from Google Research) released with the paper [Rethinking embedding coupling in pre-trained language models](https://arxiv.org/pdf/2010.12821.pdf) by Hyung Won Chung, Thibault Févry, Henry Tsai, M. Johnson, Sebastian Ruder.
1. **[RoBERTa](https://huggingface.co/docs/transformers/model_doc/roberta)** (from Facebook), released together with the paper a [Robustly Optimized BERT Pretraining Approach](https://arxiv.org/abs/1907.11692) by Yinhan Liu, Myle Ott, Naman Goyal, Jingfei Du, Mandar Joshi, Danqi Chen, Omer Levy, Mike Lewis, Luke Zettlemoyer, Veselin Stoyanov.

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@ -240,6 +240,8 @@
title: QDQBert
- local: model_doc/rag
title: RAG
- local: model_doc/realm
title: REALM
- local: model_doc/reformer
title: Reformer
- local: model_doc/rembert

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@ -151,6 +151,7 @@ conversion utilities for the following models.
1. **[PhoBERT](model_doc/phobert)** (from VinAI Research) released with the paper [PhoBERT: Pre-trained language models for Vietnamese](https://www.aclweb.org/anthology/2020.findings-emnlp.92/) by Dat Quoc Nguyen and Anh Tuan Nguyen.
1. **[ProphetNet](model_doc/prophetnet)** (from Microsoft Research) released with the paper [ProphetNet: Predicting Future N-gram for Sequence-to-Sequence Pre-training](https://arxiv.org/abs/2001.04063) by Yu Yan, Weizhen Qi, Yeyun Gong, Dayiheng Liu, Nan Duan, Jiusheng Chen, Ruofei Zhang and Ming Zhou.
1. **[QDQBert](model_doc/qdqbert)** (from NVIDIA) released with the paper [Integer Quantization for Deep Learning Inference: Principles and Empirical Evaluation](https://arxiv.org/abs/2004.09602) by Hao Wu, Patrick Judd, Xiaojie Zhang, Mikhail Isaev and Paulius Micikevicius.
1. **[REALM](https://huggingface.co/transformers/master/model_doc/realm.html)** (from Google Research) released with the paper [REALM: Retrieval-Augmented Language Model Pre-Training](https://arxiv.org/abs/2002.08909) by Kelvin Guu, Kenton Lee, Zora Tung, Panupong Pasupat and Ming-Wei Chang.
1. **[Reformer](model_doc/reformer)** (from Google Research) released with the paper [Reformer: The Efficient Transformer](https://arxiv.org/abs/2001.04451) by Nikita Kitaev, Łukasz Kaiser, Anselm Levskaya.
1. **[RemBERT](model_doc/rembert)** (from Google Research) released with the paper [Rethinking embedding coupling in pre-trained language models](https://arxiv.org/pdf/2010.12821.pdf) by Hyung Won Chung, Thibault Févry, Henry Tsai, M. Johnson, Sebastian Ruder.
1. **[RoBERTa](model_doc/roberta)** (from Facebook), released together with the paper a [Robustly Optimized BERT Pretraining Approach](https://arxiv.org/abs/1907.11692) by Yinhan Liu, Myle Ott, Naman Goyal, Jingfei Du, Mandar Joshi, Danqi Chen, Omer Levy, Mike Lewis, Luke Zettlemoyer, Veselin Stoyanov.
@ -244,6 +245,7 @@ Flax), PyTorch, and/or TensorFlow.
| ProphetNet | ✅ | ❌ | ✅ | ❌ | ❌ |
| QDQBert | ❌ | ❌ | ✅ | ❌ | ❌ |
| RAG | ✅ | ❌ | ✅ | ✅ | ❌ |
| Realm | ✅ | ❌ | ✅ | ❌ | ❌ |
| Reformer | ✅ | ✅ | ✅ | ❌ | ❌ |
| RemBERT | ✅ | ✅ | ✅ | ✅ | ❌ |
| RetriBERT | ✅ | ✅ | ✅ | ❌ | ❌ |

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@ -0,0 +1,80 @@
<!--Copyright 2022 The HuggingFace Team. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
specific language governing permissions and limitations under the License.
-->
# REALM
## Overview
The REALM model was proposed in `REALM: Retrieval-Augmented Language Model Pre-Training
<https://arxiv.org/abs/2002.08909>`__ by Kelvin Guu, Kenton Lee, Zora Tung, Panupong Pasupat and Ming-Wei Chang. It's a
retrieval-augmented language model that firstly retrieves documents from a textual knowledge corpus and then
utilizes retrieved documents to process question answering tasks.
The abstract from the paper is the following:
*Language model pre-training has been shown to capture a surprising amount of world knowledge, crucial for NLP tasks
such as question answering. However, this knowledge is stored implicitly in the parameters of a neural network,
requiring ever-larger networks to cover more facts. To capture knowledge in a more modular and interpretable way, we
augment language model pre-training with a latent knowledge retriever, which allows the model to retrieve and attend
over documents from a large corpus such as Wikipedia, used during pre-training, fine-tuning and inference. For the
first time, we show how to pre-train such a knowledge retriever in an unsupervised manner, using masked language
modeling as the learning signal and backpropagating through a retrieval step that considers millions of documents. We
demonstrate the effectiveness of Retrieval-Augmented Language Model pre-training (REALM) by fine-tuning on the
challenging task of Open-domain Question Answering (Open-QA). We compare against state-of-the-art models for both
explicit and implicit knowledge storage on three popular Open-QA benchmarks, and find that we outperform all previous
methods by a significant margin (4-16% absolute accuracy), while also providing qualitative benefits such as
interpretability and modularity.*
This model was contributed by `qqaatw <https://huggingface.co/qqaatw>`__. The original code can be found `here
<https://github.com/google-research/language/tree/master/language/realm>`__.
## RealmConfig
[[autodoc]] RealmConfig
## RealmTokenizer
[[autodoc]] RealmTokenizer
- build_inputs_with_special_tokens
- get_special_tokens_mask
- create_token_type_ids_from_sequences
- save_vocabulary
- batch_encode_candidates
## RealmRetriever
[[autodoc]] RealmRetriever
## RealmEmbedder
[[autodoc]] RealmEmbedder
- forward
## RealmScorer
[[autodoc]] RealmScorer
- forward
## RealmKnowledgeAugEncoder
[[autodoc]] RealmKnowledgeAugEncoder
- forward
## RealmReader
[[autodoc]] RealmReader
- forward
## RealmForOpenQA
[[autodoc]] RealmForOpenQA
- forward

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@ -265,6 +265,7 @@ _import_structure = {
"models.prophetnet": ["PROPHETNET_PRETRAINED_CONFIG_ARCHIVE_MAP", "ProphetNetConfig", "ProphetNetTokenizer"],
"models.qdqbert": ["QDQBERT_PRETRAINED_CONFIG_ARCHIVE_MAP", "QDQBertConfig"],
"models.rag": ["RagConfig", "RagRetriever", "RagTokenizer"],
"models.realm": ["REALM_PRETRAINED_CONFIG_ARCHIVE_MAP", "RealmConfig", "RealmTokenizer"],
"models.reformer": ["REFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP", "ReformerConfig"],
"models.rembert": ["REMBERT_PRETRAINED_CONFIG_ARCHIVE_MAP", "RemBertConfig"],
"models.retribert": ["RETRIBERT_PRETRAINED_CONFIG_ARCHIVE_MAP", "RetriBertConfig", "RetriBertTokenizer"],
@ -1199,6 +1200,19 @@ if is_torch_available():
_import_structure["models.rag"].extend(
["RagModel", "RagPreTrainedModel", "RagSequenceForGeneration", "RagTokenForGeneration"]
)
_import_structure["models.realm"].extend(
[
"REALM_PRETRAINED_MODEL_ARCHIVE_LIST",
"RealmEmbedder",
"RealmForOpenQA",
"RealmKnowledgeAugEncoder",
"RealmPreTrainedModel",
"RealmReader",
"RealmRetriever",
"RealmScorer",
"load_tf_weights_in_realm",
]
)
_import_structure["models.reformer"].extend(
[
"REFORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
@ -2353,6 +2367,7 @@ if TYPE_CHECKING:
from .models.prophetnet import PROPHETNET_PRETRAINED_CONFIG_ARCHIVE_MAP, ProphetNetConfig, ProphetNetTokenizer
from .models.qdqbert import QDQBERT_PRETRAINED_CONFIG_ARCHIVE_MAP, QDQBertConfig
from .models.rag import RagConfig, RagRetriever, RagTokenizer
from .models.realm import REALM_PRETRAINED_CONFIG_ARCHIVE_MAP, RealmConfig, RealmTokenizer
from .models.reformer import REFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP, ReformerConfig
from .models.rembert import REMBERT_PRETRAINED_CONFIG_ARCHIVE_MAP, RemBertConfig
from .models.retribert import RETRIBERT_PRETRAINED_CONFIG_ARCHIVE_MAP, RetriBertConfig, RetriBertTokenizer
@ -3128,6 +3143,17 @@ if TYPE_CHECKING:
ProphetNetPreTrainedModel,
)
from .models.rag import RagModel, RagPreTrainedModel, RagSequenceForGeneration, RagTokenForGeneration
from .models.realm import (
REALM_PRETRAINED_MODEL_ARCHIVE_LIST,
RealmEmbedder,
RealmForOpenQA,
RealmKnowledgeAugEncoder,
RealmPreTrainedModel,
RealmReader,
RealmRetriever,
RealmScorer,
load_tf_weights_in_realm,
)
from .models.reformer import (
REFORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
ReformerAttention,

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@ -84,6 +84,7 @@ from . import (
prophetnet,
qdqbert,
rag,
realm,
reformer,
rembert,
retribert,

View File

@ -30,6 +30,7 @@ logger = logging.get_logger(__name__)
CONFIG_MAPPING_NAMES = OrderedDict(
[
# Add configs here
("realm", "RealmConfig"),
("nystromformer", "NystromformerConfig"),
("imagegpt", "ImageGPTConfig"),
("qdqbert", "QDQBertConfig"),
@ -117,6 +118,7 @@ CONFIG_MAPPING_NAMES = OrderedDict(
CONFIG_ARCHIVE_MAP_MAPPING_NAMES = OrderedDict(
[
# Add archive maps here
("realm", "REALM_PRETRAINED_CONFIG_ARCHIVE_MAP"),
("nystromformer", "NYSTROMFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP"),
("imagegpt", "IMAGEGPT_PRETRAINED_CONFIG_ARCHIVE_MAP"),
("qdqbert", "QDQBERT_PRETRAINED_CONFIG_ARCHIVE_MAP"),
@ -192,6 +194,7 @@ CONFIG_ARCHIVE_MAP_MAPPING_NAMES = OrderedDict(
MODEL_NAMES_MAPPING = OrderedDict(
[
# Add full (and cased) model names here
("realm", "Realm"),
("nystromformer", "Nystromformer"),
("imagegpt", "ImageGPT"),
("qdqbert", "QDQBert"),

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@ -0,0 +1,64 @@
# flake8: noqa
# There's no way to ignore "F401 '...' imported but unused" warnings in this
# module, but to preserve other warnings. So, don't check this module at all.
# Copyright 2022 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from typing import TYPE_CHECKING
from ...file_utils import _LazyModule, is_tokenizers_available, is_torch_available
_import_structure = {
"configuration_realm": ["REALM_PRETRAINED_CONFIG_ARCHIVE_MAP", "RealmConfig"],
"tokenization_realm": ["RealmTokenizer"],
}
if is_torch_available():
_import_structure["modeling_realm"] = [
"REALM_PRETRAINED_MODEL_ARCHIVE_LIST",
"RealmEmbedder",
"RealmForOpenQA",
"RealmKnowledgeAugEncoder",
"RealmPreTrainedModel",
"RealmReader",
"RealmScorer",
"load_tf_weights_in_realm",
]
_import_structure["retrieval_realm"] = ["RealmRetriever"]
if TYPE_CHECKING:
from .configuration_realm import REALM_PRETRAINED_CONFIG_ARCHIVE_MAP, RealmConfig
from .tokenization_realm import RealmTokenizer
if is_torch_available():
from .modeling_realm import (
REALM_PRETRAINED_MODEL_ARCHIVE_LIST,
RealmEmbedder,
RealmForOpenQA,
RealmKnowledgeAugEncoder,
RealmPreTrainedModel,
RealmReader,
RealmScorer,
load_tf_weights_in_realm,
)
from .retrieval_realm import RealmRetriever
else:
import sys
sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure)

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@ -0,0 +1,180 @@
# coding=utf-8
# Copyright 2022 The REALM authors and The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
""" REALM model configuration."""
from ...configuration_utils import PretrainedConfig
from ...utils import logging
logger = logging.get_logger(__name__)
REALM_PRETRAINED_CONFIG_ARCHIVE_MAP = {
"realm-cc-news-pretrained-embedder": "https://huggingface.co/qqaatw/realm-cc-news-pretrained-embedder/resolve/main/config.json",
"realm-cc-news-pretrained-encoder": "https://huggingface.co/qqaatw/realm-cc-news-pretrained-encoder/resolve/main/config.json",
"realm-cc-news-pretrained-scorer": "https://huggingface.co/qqaatw/realm-cc-news-pretrained-scorer/resolve/main/config.json",
"realm-cc-news-pretrained-openqa": "https://huggingface.co/qqaatw/realm-cc-news-pretrained-openqa/aresolve/main/config.json",
"realm-orqa-nq-openqa": "https://huggingface.co/qqaatw/realm-orqa-nq-openqa/resolve/main/config.json",
"realm-orqa-nq-reader": "https://huggingface.co/qqaatw/realm-orqa-nq-reader/resolve/main/config.json",
"realm-orqa-wq-openqa": "https://huggingface.co/qqaatw/realm-orqa-wq-openqa/resolve/main/config.json",
"realm-orqa-wq-reader": "https://huggingface.co/qqaatw/realm-orqa-wq-reader/resolve/main/config.json",
# See all REALM models at https://huggingface.co/models?filter=realm
}
class RealmConfig(PretrainedConfig):
r"""
This is the configuration class to store the configuration of
1. [`RealmEmbedder`]
2. [`RealmScorer`]
3. [`RealmKnowledgeAugEncoder`]
4. [`RealmRetriever`]
5. [`RealmReader`]
6. [`RealmForOpenQA`]
It is used to instantiate an REALM model according to the specified arguments, defining the model architecture.
Instantiating a configuration with the defaults will yield a similar configuration to that of the REALM
[realm-cc-news-pretrained](https://huggingface.co/qqaatw/realm-cc-news-pretrained-embedder) architecture.
Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
documentation from [`PretrainedConfig`] for more information.
Args:
vocab_size (`int`, *optional*, defaults to 30522):
Vocabulary size of the REALM model. Defines the number of different tokens that can be represented by the
`inputs_ids` passed when calling [`RealmEmbedder`], [`RealmScorer`], [`RealmKnowledgeAugEncoder`], or
[`RealmReader`].
hidden_size (`int`, *optional*, defaults to 768):
Dimension of the encoder layers and the pooler layer.
retriever_proj_size (`int`, *optional*, defaults to 128):
Dimension of the retriever(embedder) projection.
num_hidden_layers (`int`, *optional*, defaults to 12):
Number of hidden layers in the Transformer encoder.
num_attention_heads (`int`, *optional*, defaults to 12):
Number of attention heads for each attention layer in the Transformer encoder.
num_candidates (`int`, *optional*, defaults to 8):
Number of candidates inputted to the RealmScorer or RealmKnowledgeAugEncoder.
intermediate_size (`int`, *optional*, defaults to 3072):
Dimension of the "intermediate" (i.e., feed-forward) layer in the Transformer encoder.
hidden_act (`str` or `function`, *optional*, defaults to `"gelu_new"`):
The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`,
`"relu"`, `"selu"` and `"gelu_new"` are supported.
hidden_dropout_prob (`float`, *optional*, defaults to 0.1):
The dropout probabilitiy for all fully connected layers in the embeddings, encoder, and pooler.
attention_probs_dropout_prob (`float`, *optional*, defaults to 0.1):
The dropout ratio for the attention probabilities.
max_position_embeddings (`int`, *optional*, defaults to 512):
The maximum sequence length that this model might ever be used with. Typically set this to something large
just in case (e.g., 512 or 1024 or 2048).
type_vocab_size (`int`, *optional*, defaults to 2):
The vocabulary size of the `token_type_ids` passed when calling [`RealmEmbedder`], [`RealmScorer`],
[`RealmKnowledgeAugEncoder`], or [`RealmReader`].
initializer_range (`float`, *optional*, defaults to 0.02):
The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
layer_norm_eps (`float`, *optional*, defaults to 1e-12):
The epsilon used by the layer normalization layers.
span_hidden_size (`int`, *optional*, defaults to 256):
Dimension of the reader's spans.
max_span_width (`int`, *optional*, defaults to 10):
Max span width of the reader.
reader_layer_norm_eps (`float`, *optional*, defaults to 1e-3):
The epsilon used by the reader's layer normalization layers.
reader_beam_size (`int`, *optional*, defaults to 5):
Beam size of the reader.
reader_seq_len (`int`, *optional*, defaults to 288+32):
Maximum sequence length of the reader.
num_block_records (`int`, *optional*, defaults to 13353718):
Number of block records.
searcher_beam_size (`int`, *optional*, defaults to 5000):
Beam size of the searcher. Note that when eval mode is enabled, *searcher_beam_size* will be the same as
*reader_beam_size*.
searcher_seq_len (`int`, *optional*, defaults to 64):
Maximum sequence length of the searcher.
Example:
```python
>>> from transformers import RealmEmbedder, RealmConfig
>>> # Initializing a REALM realm-cc-news-pretrained-* style configuration
>>> configuration = RealmConfig()
>>> # Initializing a model from the qqaatw/realm-cc-news-pretrained-embedder style configuration
>>> model = RealmEmbedder(configuration)
>>> # Accessing the model configuration
>>> configuration = model.config
```"""
model_type = "realm"
def __init__(
self,
vocab_size=30522,
hidden_size=768,
retriever_proj_size=128,
num_hidden_layers=12,
num_attention_heads=12,
num_candidates=8,
intermediate_size=3072,
hidden_act="gelu_new",
hidden_dropout_prob=0.1,
attention_probs_dropout_prob=0.1,
max_position_embeddings=512,
type_vocab_size=2,
initializer_range=0.02,
layer_norm_eps=1e-12,
span_hidden_size=256,
max_span_width=10,
reader_layer_norm_eps=1e-3,
reader_beam_size=5,
reader_seq_len=320, # 288 + 32
num_block_records=13353718,
searcher_beam_size=5000,
searcher_seq_len=64,
pad_token_id=1,
bos_token_id=0,
eos_token_id=2,
**kwargs
):
super().__init__(pad_token_id=pad_token_id, bos_token_id=bos_token_id, eos_token_id=eos_token_id, **kwargs)
# Common config
self.vocab_size = vocab_size
self.max_position_embeddings = max_position_embeddings
self.hidden_size = hidden_size
self.retriever_proj_size = retriever_proj_size
self.num_hidden_layers = num_hidden_layers
self.num_attention_heads = num_attention_heads
self.num_candidates = num_candidates
self.intermediate_size = intermediate_size
self.hidden_act = hidden_act
self.hidden_dropout_prob = hidden_dropout_prob
self.attention_probs_dropout_prob = attention_probs_dropout_prob
self.initializer_range = initializer_range
self.type_vocab_size = type_vocab_size
self.layer_norm_eps = layer_norm_eps
# Reader config
self.span_hidden_size = span_hidden_size
self.max_span_width = max_span_width
self.reader_layer_norm_eps = reader_layer_norm_eps
self.reader_beam_size = reader_beam_size
self.reader_seq_len = reader_seq_len
# Retrieval config
self.num_block_records = num_block_records
self.searcher_beam_size = searcher_beam_size
self.searcher_seq_len = searcher_seq_len

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@ -0,0 +1,162 @@
# coding=utf-8
# Copyright 2022 The REALM authors and The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""REALM Retriever model implementation."""
import os
from typing import Optional, Union
import numpy as np
from huggingface_hub import hf_hub_download
from ...utils import logging
from .tokenization_realm import RealmTokenizer
_REALM_BLOCK_RECORDS_FILENAME = "block_records.npy"
logger = logging.get_logger(__name__)
def convert_tfrecord_to_np(block_records_path: str, num_block_records: int) -> np.ndarray:
import tensorflow.compat.v1 as tf
blocks_dataset = tf.data.TFRecordDataset(block_records_path, buffer_size=512 * 1024 * 1024)
blocks_dataset = blocks_dataset.batch(num_block_records, drop_remainder=True)
np_record = next(blocks_dataset.take(1).as_numpy_iterator())
return np_record
class ScaNNSearcher:
"""Note that ScaNNSearcher cannot currently be used within the model. In future versions, it might however be included."""
def __init__(
self,
db,
num_neighbors,
dimensions_per_block=2,
num_leaves=1000,
num_leaves_to_search=100,
training_sample_size=100000,
):
"""Build scann searcher."""
from scann.scann_ops.py.scann_ops_pybind import builder as Builder
builder = Builder(db=db, num_neighbors=num_neighbors, distance_measure="dot_product")
builder = builder.tree(
num_leaves=num_leaves, num_leaves_to_search=num_leaves_to_search, training_sample_size=training_sample_size
)
builder = builder.score_ah(dimensions_per_block=dimensions_per_block)
self.searcher = builder.build()
def search_batched(self, question_projection):
retrieved_block_ids, _ = self.searcher.search_batched(question_projection.detach().cpu())
return retrieved_block_ids.astype("int64")
class RealmRetriever:
"""The retriever of REALM outputting the retrieved evidence block and whether the block has answers as well as answer
positions."
Parameters:
block_records (`np.ndarray`):
A numpy array which cantains evidence texts.
tokenizer ([`RealmTokenizer`]):
The tokenizer to encode retrieved texts.
"""
def __init__(self, block_records, tokenizer):
super().__init__()
self.block_records = block_records
self.tokenizer = tokenizer
def __call__(self, retrieved_block_ids, question_input_ids, answer_ids, max_length=None, return_tensors="pt"):
retrieved_blocks = np.take(self.block_records, indices=retrieved_block_ids, axis=0)
question = self.tokenizer.decode(question_input_ids[0], skip_special_tokens=True)
text = []
text_pair = []
for retrieved_block in retrieved_blocks:
text.append(question)
text_pair.append(retrieved_block.decode())
concat_inputs = self.tokenizer(text, text_pair, padding=True, truncation=True, max_length=max_length)
concat_inputs_tensors = concat_inputs.convert_to_tensors(return_tensors)
if answer_ids is not None:
return self.block_has_answer(concat_inputs, answer_ids) + (concat_inputs_tensors,)
else:
return (None, None, None, concat_inputs_tensors)
@classmethod
def from_pretrained(cls, pretrained_model_name_or_path: Optional[Union[str, os.PathLike]], *init_inputs, **kwargs):
if os.path.isdir(pretrained_model_name_or_path):
block_records_path = os.path.join(pretrained_model_name_or_path, _REALM_BLOCK_RECORDS_FILENAME)
else:
block_records_path = hf_hub_download(
repo_id=pretrained_model_name_or_path, filename=_REALM_BLOCK_RECORDS_FILENAME, **kwargs
)
block_records = np.load(block_records_path, allow_pickle=True)
tokenizer = RealmTokenizer.from_pretrained(pretrained_model_name_or_path, *init_inputs, **kwargs)
return cls(block_records, tokenizer)
def save_pretrained(self, save_directory):
# save block records
np.save(os.path.join(save_directory, _REALM_BLOCK_RECORDS_FILENAME), self.block_records)
# save tokenizer
self.tokenizer.save_pretrained(save_directory)
def block_has_answer(self, concat_inputs, answer_ids):
"""check if retrieved_blocks has answers."""
has_answers = []
start_pos = []
end_pos = []
max_answers = 0
for input_id in concat_inputs.input_ids:
start_pos.append([])
end_pos.append([])
input_id_list = input_id.tolist()
# Checking answers after the [SEP] token
sep_idx = input_id_list.index(self.tokenizer.sep_token_id)
for answer in answer_ids:
for idx in range(sep_idx, len(input_id)):
if answer[0] == input_id_list[idx]:
if input_id_list[idx : idx + len(answer)] == answer:
start_pos[-1].append(idx)
end_pos[-1].append(idx + len(answer) - 1)
if len(start_pos[-1]) == 0:
has_answers.append(False)
else:
has_answers.append(True)
if len(start_pos[-1]) > max_answers:
max_answers = len(start_pos[-1])
# Pad -1 to max_answers
for start_pos_, end_pos_ in zip(start_pos, end_pos):
if len(start_pos_) < max_answers:
padded = [-1] * (max_answers - len(start_pos_))
start_pos_ += padded
end_pos_ += padded
return has_answers, start_pos, end_pos

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@ -0,0 +1,149 @@
# coding=utf-8
# Copyright 2022 The REALM authors and The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Tokenization classes for REALM."""
from ...file_utils import PaddingStrategy
from ...tokenization_utils_base import BatchEncoding
from ...utils import logging
from ..bert.tokenization_bert import BertTokenizer
logger = logging.get_logger(__name__)
VOCAB_FILES_NAMES = {"vocab_file": "vocab.txt"}
PRETRAINED_VOCAB_FILES_MAP = {
"vocab_file": {
"realm-cc-news-pretrained-embedder": "https://huggingface.co/qqaatw/realm-cc-news-pretrained-embedder/resolve/main/vocab.txt",
"realm-cc-news-pretrained-encoder": "https://huggingface.co/qqaatw/realm-cc-news-pretrained-encoder/resolve/main/vocab.txt",
"realm-cc-news-pretrained-scorer": "https://huggingface.co/qqaatw/realm-cc-news-pretrained-scorer/resolve/main/vocab.txt",
"realm-cc-news-pretrained-openqa": "https://huggingface.co/qqaatw/realm-cc-news-pretrained-openqa/aresolve/main/vocab.txt",
"realm-orqa-nq-openqa": "https://huggingface.co/qqaatw/realm-orqa-nq-openqa/resolve/main/vocab.txt",
"realm-orqa-nq-reader": "https://huggingface.co/qqaatw/realm-orqa-nq-reader/resolve/main/vocab.txt",
"realm-orqa-wq-openqa": "https://huggingface.co/qqaatw/realm-orqa-wq-openqa/resolve/main/vocab.txt",
"realm-orqa-wq-reader": "https://huggingface.co/qqaatw/realm-orqa-wq-reader/resolve/main/vocab.txt",
}
}
PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES = {
"realm-cc-news-pretrained-embedder": 512,
"realm-cc-news-pretrained-encoder": 512,
"realm-cc-news-pretrained-scorer": 512,
"realm-cc-news-pretrained-openqa": 512,
"realm-orqa-nq-openqa": 512,
"realm-orqa-nq-reader": 512,
"realm-orqa-wq-openqa": 512,
"realm-orqa-wq-reader": 512,
}
PRETRAINED_INIT_CONFIGURATION = {
"realm-cc-news-pretrained-embedder": {"do_lower_case": True},
"realm-cc-news-pretrained-encoder": {"do_lower_case": True},
"realm-cc-news-pretrained-scorer": {"do_lower_case": True},
"realm-cc-news-pretrained-openqa": {"do_lower_case": True},
"realm-orqa-nq-openqa": {"do_lower_case": True},
"realm-orqa-nq-reader": {"do_lower_case": True},
"realm-orqa-wq-openqa": {"do_lower_case": True},
"realm-orqa-wq-reader": {"do_lower_case": True},
}
class RealmTokenizer(BertTokenizer):
r"""
Construct a REALM tokenizer.
[`RealmTokenizer`] is identical to [`BertTokenizer`] and runs end-to-end tokenization: punctuation splitting and
wordpiece.
Refer to superclass [`BertTokenizer`] for usage examples and documentation concerning parameters.
"""
vocab_files_names = VOCAB_FILES_NAMES
pretrained_vocab_files_map = PRETRAINED_VOCAB_FILES_MAP
max_model_input_sizes = PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
pretrained_init_configuration = PRETRAINED_INIT_CONFIGURATION
def batch_encode_candidates(self, text, **kwargs):
r"""
Encode a batch of text or text pair. This method is similar to regular __call__ method but has the following
differences:
1. Handle additional num_candidate axis. (batch_size, num_candidates, text)
2. Always pad the sequences to *max_length*.
3. Must specify *max_length* in order to stack packs of candidates into a batch.
- single sequence: `[CLS] X [SEP]`
- pair of sequences: `[CLS] A [SEP] B [SEP]`
Args:
text (`List[List[str]]`):
The batch of sequences to be encoded. Each sequence must be in this format: (batch_size,
num_candidates, text).
text_pair (`List[List[str]]`, *optional*):
The batch of sequences to be encoded. Each sequence must be in this format: (batch_size,
num_candidates, text).
**kwargs:
Keyword arguments of the __call__ method.
Returns:
[`BatchEncoding`]: Encoded text or text pair.
Example:
```python
>>> from transformers import RealmTokenizer
>>> # batch_size = 2, num_candidates = 2
>>> text = [["Hello world!", "Nice to meet you!"], ["The cute cat.", "The adorable dog."]]
>>> tokenizer = RealmTokenizer.from_pretrained("qqaatw/realm-cc-news-pretrained-encoder")
>>> tokenized_text = tokenizer.batch_encode_candidates(text, max_length=10, return_tensors="pt")
```"""
# Always using a fixed sequence length to encode in order to stack candidates into a batch.
kwargs["padding"] = PaddingStrategy.MAX_LENGTH
batch_text = text
batch_text_pair = kwargs.pop("text_pair", None)
return_tensors = kwargs.pop("return_tensors", None)
output_data = {
"input_ids": [],
"attention_mask": [],
"token_type_ids": [],
}
for idx, candidate_text in enumerate(batch_text):
if batch_text_pair is not None:
candidate_text_pair = batch_text_pair[idx]
else:
candidate_text_pair = None
encoded_candidates = super().__call__(candidate_text, candidate_text_pair, return_tensors=None, **kwargs)
encoded_input_ids = encoded_candidates.get("input_ids")
encoded_attention_mask = encoded_candidates.get("attention_mask")
encoded_token_type_ids = encoded_candidates.get("token_type_ids")
if encoded_input_ids is not None:
output_data["input_ids"].append(encoded_input_ids)
if encoded_attention_mask is not None:
output_data["attention_mask"].append(encoded_attention_mask)
if encoded_token_type_ids is not None:
output_data["token_type_ids"].append(encoded_token_type_ids)
output_data = dict((key, item) for key, item in output_data.items() if len(item) != 0)
return BatchEncoding(output_data, tensor_type=return_tensors)

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@ -2783,6 +2783,62 @@ class RagTokenForGeneration(metaclass=DummyObject):
requires_backends(self, ["torch"])
REALM_PRETRAINED_MODEL_ARCHIVE_LIST = None
class RealmEmbedder(metaclass=DummyObject):
_backends = ["torch"]
def __init__(self, *args, **kwargs):
requires_backends(self, ["torch"])
class RealmForOpenQA(metaclass=DummyObject):
_backends = ["torch"]
def __init__(self, *args, **kwargs):
requires_backends(self, ["torch"])
class RealmKnowledgeAugEncoder(metaclass=DummyObject):
_backends = ["torch"]
def __init__(self, *args, **kwargs):
requires_backends(self, ["torch"])
class RealmPreTrainedModel(metaclass=DummyObject):
_backends = ["torch"]
def __init__(self, *args, **kwargs):
requires_backends(self, ["torch"])
class RealmReader(metaclass=DummyObject):
_backends = ["torch"]
def __init__(self, *args, **kwargs):
requires_backends(self, ["torch"])
class RealmRetriever(metaclass=DummyObject):
_backends = ["torch"]
def __init__(self, *args, **kwargs):
requires_backends(self, ["torch"])
class RealmScorer(metaclass=DummyObject):
_backends = ["torch"]
def __init__(self, *args, **kwargs):
requires_backends(self, ["torch"])
def load_tf_weights_in_realm(*args, **kwargs):
requires_backends(load_tf_weights_in_realm, ["torch"])
REFORMER_PRETRAINED_MODEL_ARCHIVE_LIST = None

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@ -0,0 +1,545 @@
# coding=utf-8
# Copyright 2022 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
""" Testing suite for the PyTorch REALM model. """
import copy
import unittest
import numpy as np
from tests.test_modeling_common import floats_tensor
from transformers import RealmConfig, is_torch_available
from transformers.testing_utils import require_torch, slow, torch_device
from .test_configuration_common import ConfigTester
from .test_modeling_common import ModelTesterMixin, ids_tensor, random_attention_mask
if is_torch_available():
import torch
from transformers import (
RealmEmbedder,
RealmForOpenQA,
RealmKnowledgeAugEncoder,
RealmReader,
RealmRetriever,
RealmScorer,
RealmTokenizer,
)
class RealmModelTester:
def __init__(
self,
parent,
batch_size=13,
retriever_proj_size=128,
seq_length=7,
is_training=True,
use_input_mask=True,
use_token_type_ids=True,
use_labels=True,
vocab_size=99,
hidden_size=32,
num_hidden_layers=5,
num_attention_heads=4,
intermediate_size=37,
hidden_act="gelu",
hidden_dropout_prob=0.1,
attention_probs_dropout_prob=0.1,
max_position_embeddings=512,
type_vocab_size=16,
type_sequence_label_size=2,
initializer_range=0.02,
layer_norm_eps=1e-12,
span_hidden_size=50,
max_span_width=10,
reader_layer_norm_eps=1e-3,
reader_beam_size=4,
reader_seq_len=288 + 32,
num_block_records=13353718,
searcher_beam_size=8,
searcher_seq_len=64,
num_labels=3,
num_choices=4,
num_candidates=10,
scope=None,
):
# General config
self.parent = parent
self.batch_size = batch_size
self.retriever_proj_size = retriever_proj_size
self.seq_length = seq_length
self.is_training = is_training
self.use_input_mask = use_input_mask
self.use_token_type_ids = use_token_type_ids
self.use_labels = use_labels
self.vocab_size = vocab_size
self.hidden_size = hidden_size
self.num_hidden_layers = num_hidden_layers
self.num_attention_heads = num_attention_heads
self.intermediate_size = intermediate_size
self.hidden_act = hidden_act
self.hidden_dropout_prob = hidden_dropout_prob
self.attention_probs_dropout_prob = attention_probs_dropout_prob
self.max_position_embeddings = max_position_embeddings
self.type_vocab_size = type_vocab_size
self.type_sequence_label_size = type_sequence_label_size
self.initializer_range = initializer_range
self.layer_norm_eps = layer_norm_eps
# Reader config
self.span_hidden_size = span_hidden_size
self.max_span_width = max_span_width
self.reader_layer_norm_eps = reader_layer_norm_eps
self.reader_beam_size = reader_beam_size
self.reader_seq_len = reader_seq_len
# Searcher config
self.num_block_records = num_block_records
self.searcher_beam_size = searcher_beam_size
self.searcher_seq_len = searcher_seq_len
self.num_labels = num_labels
self.num_choices = num_choices
self.num_candidates = num_candidates
self.scope = scope
def prepare_config_and_inputs(self):
input_ids = ids_tensor([self.batch_size, self.seq_length], self.vocab_size)
candiate_input_ids = ids_tensor([self.batch_size, self.num_candidates, self.seq_length], self.vocab_size)
reader_input_ids = ids_tensor([self.reader_beam_size, self.reader_seq_len], self.vocab_size)
input_mask = None
candiate_input_mask = None
reader_input_mask = None
if self.use_input_mask:
input_mask = random_attention_mask([self.batch_size, self.seq_length])
candiate_input_mask = random_attention_mask([self.batch_size, self.num_candidates, self.seq_length])
reader_input_mask = random_attention_mask([self.reader_beam_size, self.reader_seq_len])
token_type_ids = None
candidate_token_type_ids = None
reader_token_type_ids = None
if self.use_token_type_ids:
token_type_ids = ids_tensor([self.batch_size, self.seq_length], self.type_vocab_size)
candidate_token_type_ids = ids_tensor(
[self.batch_size, self.num_candidates, self.seq_length], self.type_vocab_size
)
reader_token_type_ids = ids_tensor([self.reader_beam_size, self.reader_seq_len], self.type_vocab_size)
sequence_labels = None
token_labels = None
choice_labels = None
if self.use_labels:
sequence_labels = ids_tensor([self.batch_size], self.type_sequence_label_size)
token_labels = ids_tensor([self.batch_size, self.seq_length], self.num_labels)
choice_labels = ids_tensor([self.batch_size], self.num_choices)
config = self.get_config()
# inputs with additional num_candidates axis.
scorer_encoder_inputs = (candiate_input_ids, candiate_input_mask, candidate_token_type_ids)
# reader inputs
reader_inputs = (reader_input_ids, reader_input_mask, reader_token_type_ids)
return (
config,
input_ids,
token_type_ids,
input_mask,
scorer_encoder_inputs,
reader_inputs,
sequence_labels,
token_labels,
choice_labels,
)
def get_config(self):
return RealmConfig(
vocab_size=self.vocab_size,
hidden_size=self.hidden_size,
retriever_proj_size=self.retriever_proj_size,
num_hidden_layers=self.num_hidden_layers,
num_attention_heads=self.num_attention_heads,
num_candidates=self.num_candidates,
intermediate_size=self.intermediate_size,
hidden_act=self.hidden_act,
hidden_dropout_prob=self.hidden_dropout_prob,
attention_probs_dropout_prob=self.attention_probs_dropout_prob,
max_position_embeddings=self.max_position_embeddings,
type_vocab_size=self.type_vocab_size,
initializer_range=self.initializer_range,
)
def create_and_check_embedder(
self,
config,
input_ids,
token_type_ids,
input_mask,
scorer_encoder_inputs,
reader_inputs,
sequence_labels,
token_labels,
choice_labels,
):
model = RealmEmbedder(config=config)
model.to(torch_device)
model.eval()
result = model(input_ids, attention_mask=input_mask, token_type_ids=token_type_ids)
self.parent.assertEqual(result.projected_score.shape, (self.batch_size, self.retriever_proj_size))
def create_and_check_encoder(
self,
config,
input_ids,
token_type_ids,
input_mask,
scorer_encoder_inputs,
reader_inputs,
sequence_labels,
token_labels,
choice_labels,
):
model = RealmKnowledgeAugEncoder(config=config)
model.to(torch_device)
model.eval()
relevance_score = floats_tensor([self.batch_size, self.num_candidates])
result = model(
scorer_encoder_inputs[0],
attention_mask=scorer_encoder_inputs[1],
token_type_ids=scorer_encoder_inputs[2],
relevance_score=relevance_score,
labels=token_labels,
)
self.parent.assertEqual(
result.logits.shape, (self.batch_size * self.num_candidates, self.seq_length, self.vocab_size)
)
def create_and_check_reader(
self,
config,
input_ids,
token_type_ids,
input_mask,
scorer_encoder_inputs,
reader_inputs,
sequence_labels,
token_labels,
choice_labels,
):
model = RealmReader(config=config)
model.to(torch_device)
model.eval()
relevance_score = floats_tensor([self.reader_beam_size])
result = model(
reader_inputs[0],
attention_mask=reader_inputs[1],
token_type_ids=reader_inputs[2],
relevance_score=relevance_score,
)
self.parent.assertEqual(result.block_idx.shape, ())
self.parent.assertEqual(result.candidate.shape, ())
self.parent.assertEqual(result.start_pos.shape, ())
self.parent.assertEqual(result.end_pos.shape, ())
def create_and_check_scorer(
self,
config,
input_ids,
token_type_ids,
input_mask,
scorer_encoder_inputs,
reader_inputs,
sequence_labels,
token_labels,
choice_labels,
):
model = RealmScorer(config=config)
model.to(torch_device)
model.eval()
result = model(
input_ids,
attention_mask=input_mask,
token_type_ids=token_type_ids,
candidate_input_ids=scorer_encoder_inputs[0],
candidate_attention_mask=scorer_encoder_inputs[1],
candidate_token_type_ids=scorer_encoder_inputs[2],
)
self.parent.assertEqual(result.relevance_score.shape, (self.batch_size, self.num_candidates))
self.parent.assertEqual(result.query_score.shape, (self.batch_size, self.retriever_proj_size))
self.parent.assertEqual(
result.candidate_score.shape, (self.batch_size, self.num_candidates, self.retriever_proj_size)
)
def prepare_config_and_inputs_for_common(self):
config_and_inputs = self.prepare_config_and_inputs()
(
config,
input_ids,
token_type_ids,
input_mask,
scorer_encoder_inputs,
reader_inputs,
sequence_labels,
token_labels,
choice_labels,
) = config_and_inputs
inputs_dict = {"input_ids": input_ids, "token_type_ids": token_type_ids, "attention_mask": input_mask}
return config, inputs_dict
@require_torch
class RealmModelTest(ModelTesterMixin, unittest.TestCase):
all_model_classes = (
(
RealmEmbedder,
RealmKnowledgeAugEncoder,
# RealmScorer is excluded from common tests as it is a container model
# consisting of two RealmEmbedders & a simple inner product calculation.
# RealmScorer
)
if is_torch_available()
else ()
)
all_generative_model_classes = ()
# disable these tests because there is no base_model in Realm
test_save_load_fast_init_from_base = False
test_save_load_fast_init_to_base = False
def setUp(self):
self.test_pruning = False
self.model_tester = RealmModelTester(self)
self.config_tester = ConfigTester(self, config_class=RealmConfig)
def test_config(self):
self.config_tester.run_common_tests()
def test_embedder(self):
config_and_inputs = self.model_tester.prepare_config_and_inputs()
self.model_tester.create_and_check_embedder(*config_and_inputs)
def test_encoder(self):
config_and_inputs = self.model_tester.prepare_config_and_inputs()
self.model_tester.create_and_check_encoder(*config_and_inputs)
def test_model_various_embeddings(self):
config_and_inputs = self.model_tester.prepare_config_and_inputs()
for type in ["absolute", "relative_key", "relative_key_query"]:
config_and_inputs[0].position_embedding_type = type
self.model_tester.create_and_check_embedder(*config_and_inputs)
self.model_tester.create_and_check_encoder(*config_and_inputs)
def test_retriever(self):
config_and_inputs = self.model_tester.prepare_config_and_inputs()
self.model_tester.create_and_check_scorer(*config_and_inputs)
def test_training(self):
if not self.model_tester.is_training:
return
config, *inputs = self.model_tester.prepare_config_and_inputs()
input_ids, token_type_ids, input_mask, scorer_encoder_inputs = inputs[0:4]
config.return_dict = True
tokenizer = RealmTokenizer.from_pretrained("qqaatw/realm-orqa-nq-openqa")
# RealmKnowledgeAugEncoder training
model = RealmKnowledgeAugEncoder(config)
model.to(torch_device)
model.train()
inputs_dict = {
"input_ids": scorer_encoder_inputs[0].to(torch_device),
"attention_mask": scorer_encoder_inputs[1].to(torch_device),
"token_type_ids": scorer_encoder_inputs[2].to(torch_device),
"relevance_score": floats_tensor([self.model_tester.batch_size, self.model_tester.num_candidates]),
}
inputs_dict["labels"] = torch.zeros(
(self.model_tester.batch_size, self.model_tester.seq_length), dtype=torch.long, device=torch_device
)
inputs = inputs_dict
loss = model(**inputs).loss
loss.backward()
# RealmForOpenQA training
openqa_config = copy.deepcopy(config)
openqa_config.vocab_size = 30522 # the retrieved texts will inevitably have more than 99 vocabs.
openqa_config.num_block_records = 5
openqa_config.searcher_beam_size = 2
block_records = np.array(
[
b"This is the first record.",
b"This is the second record.",
b"This is the third record.",
b"This is the fourth record.",
b"This is the fifth record.",
],
dtype=np.object,
)
retriever = RealmRetriever(block_records, tokenizer)
model = RealmForOpenQA(openqa_config, retriever)
model.to(torch_device)
model.train()
inputs_dict = {
"input_ids": input_ids[:1].to(torch_device),
"attention_mask": input_mask[:1].to(torch_device),
"token_type_ids": token_type_ids[:1].to(torch_device),
"answer_ids": input_ids[:1].tolist(),
}
inputs = self._prepare_for_class(inputs_dict, RealmForOpenQA)
loss = model(**inputs).reader_output.loss
loss.backward()
@slow
def test_embedder_from_pretrained(self):
model = RealmEmbedder.from_pretrained("qqaatw/realm-cc-news-pretrained-embedder")
self.assertIsNotNone(model)
@slow
def test_encoder_from_pretrained(self):
model = RealmKnowledgeAugEncoder.from_pretrained("qqaatw/realm-cc-news-pretrained-encoder")
self.assertIsNotNone(model)
@slow
def test_open_qa_from_pretrained(self):
model = RealmForOpenQA.from_pretrained("qqaatw/realm-orqa-nq-openqa")
self.assertIsNotNone(model)
@slow
def test_reader_from_pretrained(self):
model = RealmReader.from_pretrained("qqaatw/realm-orqa-nq-reader")
self.assertIsNotNone(model)
@slow
def test_scorer_from_pretrained(self):
model = RealmScorer.from_pretrained("qqaatw/realm-cc-news-pretrained-scorer")
self.assertIsNotNone(model)
@require_torch
class RealmModelIntegrationTest(unittest.TestCase):
@slow
def test_inference_embedder(self):
retriever_projected_size = 128
model = RealmEmbedder.from_pretrained("qqaatw/realm-cc-news-pretrained-embedder")
input_ids = torch.tensor([[0, 1, 2, 3, 4, 5]])
output = model(input_ids)[0]
expected_shape = torch.Size((1, retriever_projected_size))
self.assertEqual(output.shape, expected_shape)
expected_slice = torch.tensor([[-0.0714, -0.0837, -0.1314]])
self.assertTrue(torch.allclose(output[:, :3], expected_slice, atol=1e-4))
@slow
def test_inference_encoder(self):
num_candidates = 2
vocab_size = 30522
model = RealmKnowledgeAugEncoder.from_pretrained(
"qqaatw/realm-cc-news-pretrained-encoder", num_candidates=num_candidates
)
input_ids = torch.tensor([[0, 1, 2, 3, 4, 5], [6, 7, 8, 9, 10, 11]])
relevance_score = torch.tensor([[0.3, 0.7]], dtype=torch.float32)
output = model(input_ids, relevance_score=relevance_score)[0]
expected_shape = torch.Size((2, 6, vocab_size))
self.assertEqual(output.shape, expected_shape)
expected_slice = torch.tensor([[[-11.0888, -11.2544], [-10.2170, -10.3874]]])
self.assertTrue(torch.allclose(output[1, :2, :2], expected_slice, atol=1e-4))
@slow
def test_inference_open_qa(self):
from transformers.models.realm.retrieval_realm import RealmRetriever
config = RealmConfig()
tokenizer = RealmTokenizer.from_pretrained("qqaatw/realm-orqa-nq-openqa")
retriever = RealmRetriever.from_pretrained("qqaatw/realm-orqa-nq-openqa")
model = RealmForOpenQA.from_pretrained(
"qqaatw/realm-orqa-nq-openqa",
retriever=retriever,
config=config,
)
question = "Who is the pioneer in modern computer science?"
question = tokenizer(
[question],
padding=True,
truncation=True,
max_length=model.config.searcher_seq_len,
return_tensors="pt",
).to(model.device)
predicted_answer_ids = model(**question).predicted_answer_ids
predicted_answer = tokenizer.decode(predicted_answer_ids)
self.assertEqual(predicted_answer, "alan mathison turing")
@slow
def test_inference_reader(self):
config = RealmConfig(reader_beam_size=2, max_span_width=3)
model = RealmReader.from_pretrained("qqaatw/realm-orqa-nq-reader", config=config)
concat_input_ids = torch.arange(10).view((2, 5))
concat_token_type_ids = torch.tensor([[0, 0, 1, 1, 1], [0, 0, 1, 1, 1]], dtype=torch.int64)
relevance_score = torch.tensor([0.3, 0.7], dtype=torch.float32)
output = model(
concat_input_ids, token_type_ids=concat_token_type_ids, relevance_score=relevance_score, return_dict=True
)
block_idx_expected_shape = torch.Size(())
start_pos_expected_shape = torch.Size((1,))
end_pos_expected_shape = torch.Size((1,))
self.assertEqual(output.block_idx.shape, block_idx_expected_shape)
self.assertEqual(output.start_pos.shape, start_pos_expected_shape)
self.assertEqual(output.end_pos.shape, end_pos_expected_shape)
expected_block_idx = torch.tensor(1)
expected_start_pos = torch.tensor(3)
expected_end_pos = torch.tensor(3)
self.assertTrue(torch.allclose(output.block_idx, expected_block_idx, atol=1e-4))
self.assertTrue(torch.allclose(output.start_pos, expected_start_pos, atol=1e-4))
self.assertTrue(torch.allclose(output.end_pos, expected_end_pos, atol=1e-4))
@slow
def test_inference_scorer(self):
num_candidates = 2
model = RealmScorer.from_pretrained("qqaatw/realm-cc-news-pretrained-scorer", num_candidates=num_candidates)
input_ids = torch.tensor([[0, 1, 2, 3, 4, 5]])
candidate_input_ids = torch.tensor([[0, 1, 2, 3, 4, 5], [6, 7, 8, 9, 10, 11]])
output = model(input_ids, candidate_input_ids=candidate_input_ids)[0]
expected_shape = torch.Size((1, 2))
self.assertEqual(output.shape, expected_shape)
expected_slice = torch.tensor([[0.7410, 0.7170]])
self.assertTrue(torch.allclose(output, expected_slice, atol=1e-4))

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# coding=utf-8
# Copyright 2022 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import shutil
import tempfile
from unittest import TestCase
from unittest.mock import patch
import numpy as np
from datasets import Dataset
from transformers.models.realm.configuration_realm import RealmConfig
from transformers.models.realm.retrieval_realm import _REALM_BLOCK_RECORDS_FILENAME, RealmRetriever
from transformers.models.realm.tokenization_realm import VOCAB_FILES_NAMES, RealmTokenizer
class RealmRetrieverTest(TestCase):
def setUp(self):
self.tmpdirname = tempfile.mkdtemp()
self.num_block_records = 5
# Realm tok
vocab_tokens = [
"[UNK]",
"[CLS]",
"[SEP]",
"[PAD]",
"[MASK]",
"test",
"question",
"this",
"is",
"the",
"first",
"second",
"third",
"fourth",
"fifth",
"record",
"want",
"##want",
"##ed",
"wa",
"un",
"runn",
"##ing",
",",
"low",
"lowest",
]
realm_tokenizer_path = os.path.join(self.tmpdirname, "realm_tokenizer")
os.makedirs(realm_tokenizer_path, exist_ok=True)
self.vocab_file = os.path.join(realm_tokenizer_path, VOCAB_FILES_NAMES["vocab_file"])
with open(self.vocab_file, "w", encoding="utf-8") as vocab_writer:
vocab_writer.write("".join([x + "\n" for x in vocab_tokens]))
realm_block_records_path = os.path.join(self.tmpdirname, "realm_block_records")
os.makedirs(realm_block_records_path, exist_ok=True)
def get_tokenizer(self) -> RealmTokenizer:
return RealmTokenizer.from_pretrained(os.path.join(self.tmpdirname, "realm_tokenizer"))
def tearDown(self):
shutil.rmtree(self.tmpdirname)
def get_config(self):
config = RealmConfig(num_block_records=self.num_block_records)
return config
def get_dummy_dataset(self):
dataset = Dataset.from_dict(
{
"id": ["0", "1"],
"question": ["foo", "bar"],
"answers": [["Foo", "Bar"], ["Bar"]],
}
)
return dataset
def get_dummy_block_records(self):
block_records = np.array(
[
b"This is the first record",
b"This is the second record",
b"This is the third record",
b"This is the fourth record",
b"This is the fifth record",
],
dtype=np.object,
)
return block_records
def get_dummy_retriever(self):
retriever = RealmRetriever(
block_records=self.get_dummy_block_records(),
tokenizer=self.get_tokenizer(),
)
return retriever
def test_retrieve(self):
config = self.get_config()
retriever = self.get_dummy_retriever()
tokenizer = retriever.tokenizer
retrieved_block_ids = np.array([0, 3], dtype=np.long)
question_input_ids = tokenizer(["Test question"]).input_ids
answer_ids = tokenizer(
["the fourth"],
add_special_tokens=False,
return_token_type_ids=False,
return_attention_mask=False,
).input_ids
max_length = config.reader_seq_len
has_answers, start_pos, end_pos, concat_inputs = retriever(
retrieved_block_ids, question_input_ids, answer_ids=answer_ids, max_length=max_length, return_tensors="np"
)
self.assertEqual(len(has_answers), 2)
self.assertEqual(len(start_pos), 2)
self.assertEqual(len(end_pos), 2)
self.assertEqual(concat_inputs.input_ids.shape, (2, 10))
self.assertEqual(concat_inputs.attention_mask.shape, (2, 10))
self.assertEqual(concat_inputs.token_type_ids.shape, (2, 10))
self.assertEqual(
tokenizer.convert_ids_to_tokens(concat_inputs.input_ids[0]),
["[CLS]", "test", "question", "[SEP]", "this", "is", "the", "first", "record", "[SEP]"],
)
self.assertEqual(
tokenizer.convert_ids_to_tokens(concat_inputs.input_ids[1]),
["[CLS]", "test", "question", "[SEP]", "this", "is", "the", "fourth", "record", "[SEP]"],
)
def test_block_has_answer(self):
config = self.get_config()
retriever = self.get_dummy_retriever()
tokenizer = retriever.tokenizer
retrieved_block_ids = np.array([0, 3], dtype=np.long)
question_input_ids = tokenizer(["Test question"]).input_ids
answer_ids = tokenizer(
["the fourth"],
add_special_tokens=False,
return_token_type_ids=False,
return_attention_mask=False,
).input_ids
max_length = config.reader_seq_len
has_answers, start_pos, end_pos, _ = retriever(
retrieved_block_ids, question_input_ids, answer_ids=answer_ids, max_length=max_length, return_tensors="np"
)
self.assertEqual([False, True], has_answers)
self.assertEqual([[-1], [6]], start_pos)
self.assertEqual([[-1], [7]], end_pos)
def test_save_load_pretrained(self):
retriever = self.get_dummy_retriever()
retriever.save_pretrained(os.path.join(self.tmpdirname, "realm_block_records"))
# Test local path
retriever = retriever.from_pretrained(os.path.join(self.tmpdirname, "realm_block_records"))
self.assertEqual(retriever.block_records[0], b"This is the first record")
# Test mocked remote path
with patch("transformers.models.realm.retrieval_realm.hf_hub_download") as mock_hf_hub_download:
mock_hf_hub_download.return_value = os.path.join(
os.path.join(self.tmpdirname, "realm_block_records"), _REALM_BLOCK_RECORDS_FILENAME
)
retriever = RealmRetriever.from_pretrained("qqaatw/realm-cc-news-pretrained-openqa")
self.assertEqual(retriever.block_records[0], b"This is the first record")

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# coding=utf-8
# Copyright 2022 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import unittest
from transformers.models.bert.tokenization_bert import (
VOCAB_FILES_NAMES,
BasicTokenizer,
WordpieceTokenizer,
_is_control,
_is_punctuation,
_is_whitespace,
)
from transformers.models.realm.tokenization_realm import RealmTokenizer
from transformers.testing_utils import require_tokenizers, slow
from .test_tokenization_common import TokenizerTesterMixin, filter_non_english
@require_tokenizers
class RealmTokenizationTest(TokenizerTesterMixin, unittest.TestCase):
tokenizer_class = RealmTokenizer
rust_tokenizer_class = None
test_rust_tokenizer = False
space_between_special_tokens = True
from_pretrained_filter = filter_non_english
def setUp(self):
super().setUp()
vocab_tokens = [
"[UNK]",
"[CLS]",
"[SEP]",
"[PAD]",
"[MASK]",
"want",
"##want",
"##ed",
"wa",
"un",
"runn",
"##ing",
",",
"low",
"lowest",
]
self.vocab_file = os.path.join(self.tmpdirname, VOCAB_FILES_NAMES["vocab_file"])
with open(self.vocab_file, "w", encoding="utf-8") as vocab_writer:
vocab_writer.write("".join([x + "\n" for x in vocab_tokens]))
def get_input_output_texts(self, tokenizer):
input_text = "UNwant\u00E9d,running"
output_text = "unwanted, running"
return input_text, output_text
def test_full_tokenizer(self):
tokenizer = self.tokenizer_class(self.vocab_file)
tokens = tokenizer.tokenize("UNwant\u00E9d,running")
self.assertListEqual(tokens, ["un", "##want", "##ed", ",", "runn", "##ing"])
self.assertListEqual(tokenizer.convert_tokens_to_ids(tokens), [9, 6, 7, 12, 10, 11])
def test_rust_and_python_full_tokenizers(self):
if not self.test_rust_tokenizer:
return
tokenizer = self.get_tokenizer()
rust_tokenizer = self.get_rust_tokenizer()
sequence = "UNwant\u00E9d,running"
tokens = tokenizer.tokenize(sequence)
rust_tokens = rust_tokenizer.tokenize(sequence)
self.assertListEqual(tokens, rust_tokens)
ids = tokenizer.encode(sequence, add_special_tokens=False)
rust_ids = rust_tokenizer.encode(sequence, add_special_tokens=False)
self.assertListEqual(ids, rust_ids)
rust_tokenizer = self.get_rust_tokenizer()
ids = tokenizer.encode(sequence)
rust_ids = rust_tokenizer.encode(sequence)
self.assertListEqual(ids, rust_ids)
# With lower casing
tokenizer = self.get_tokenizer(do_lower_case=True)
rust_tokenizer = self.get_rust_tokenizer(do_lower_case=True)
sequence = "UNwant\u00E9d,running"
tokens = tokenizer.tokenize(sequence)
rust_tokens = rust_tokenizer.tokenize(sequence)
self.assertListEqual(tokens, rust_tokens)
ids = tokenizer.encode(sequence, add_special_tokens=False)
rust_ids = rust_tokenizer.encode(sequence, add_special_tokens=False)
self.assertListEqual(ids, rust_ids)
rust_tokenizer = self.get_rust_tokenizer()
ids = tokenizer.encode(sequence)
rust_ids = rust_tokenizer.encode(sequence)
self.assertListEqual(ids, rust_ids)
def test_chinese(self):
tokenizer = BasicTokenizer()
self.assertListEqual(tokenizer.tokenize("ah\u535A\u63A8zz"), ["ah", "\u535A", "\u63A8", "zz"])
def test_basic_tokenizer_lower(self):
tokenizer = BasicTokenizer(do_lower_case=True)
self.assertListEqual(
tokenizer.tokenize(" \tHeLLo!how \n Are yoU? "), ["hello", "!", "how", "are", "you", "?"]
)
self.assertListEqual(tokenizer.tokenize("H\u00E9llo"), ["hello"])
def test_basic_tokenizer_lower_strip_accents_false(self):
tokenizer = BasicTokenizer(do_lower_case=True, strip_accents=False)
self.assertListEqual(
tokenizer.tokenize(" \tHäLLo!how \n Are yoU? "), ["hällo", "!", "how", "are", "you", "?"]
)
self.assertListEqual(tokenizer.tokenize("H\u00E9llo"), ["h\u00E9llo"])
def test_basic_tokenizer_lower_strip_accents_true(self):
tokenizer = BasicTokenizer(do_lower_case=True, strip_accents=True)
self.assertListEqual(
tokenizer.tokenize(" \tHäLLo!how \n Are yoU? "), ["hallo", "!", "how", "are", "you", "?"]
)
self.assertListEqual(tokenizer.tokenize("H\u00E9llo"), ["hello"])
def test_basic_tokenizer_lower_strip_accents_default(self):
tokenizer = BasicTokenizer(do_lower_case=True)
self.assertListEqual(
tokenizer.tokenize(" \tHäLLo!how \n Are yoU? "), ["hallo", "!", "how", "are", "you", "?"]
)
self.assertListEqual(tokenizer.tokenize("H\u00E9llo"), ["hello"])
def test_basic_tokenizer_no_lower(self):
tokenizer = BasicTokenizer(do_lower_case=False)
self.assertListEqual(
tokenizer.tokenize(" \tHeLLo!how \n Are yoU? "), ["HeLLo", "!", "how", "Are", "yoU", "?"]
)
def test_basic_tokenizer_no_lower_strip_accents_false(self):
tokenizer = BasicTokenizer(do_lower_case=False, strip_accents=False)
self.assertListEqual(
tokenizer.tokenize(" \tHäLLo!how \n Are yoU? "), ["HäLLo", "!", "how", "Are", "yoU", "?"]
)
def test_basic_tokenizer_no_lower_strip_accents_true(self):
tokenizer = BasicTokenizer(do_lower_case=False, strip_accents=True)
self.assertListEqual(
tokenizer.tokenize(" \tHäLLo!how \n Are yoU? "), ["HaLLo", "!", "how", "Are", "yoU", "?"]
)
def test_basic_tokenizer_respects_never_split_tokens(self):
tokenizer = BasicTokenizer(do_lower_case=False, never_split=["[UNK]"])
self.assertListEqual(
tokenizer.tokenize(" \tHeLLo!how \n Are yoU? [UNK]"), ["HeLLo", "!", "how", "Are", "yoU", "?", "[UNK]"]
)
def test_wordpiece_tokenizer(self):
vocab_tokens = ["[UNK]", "[CLS]", "[SEP]", "want", "##want", "##ed", "wa", "un", "runn", "##ing"]
vocab = {}
for (i, token) in enumerate(vocab_tokens):
vocab[token] = i
tokenizer = WordpieceTokenizer(vocab=vocab, unk_token="[UNK]")
self.assertListEqual(tokenizer.tokenize(""), [])
self.assertListEqual(tokenizer.tokenize("unwanted running"), ["un", "##want", "##ed", "runn", "##ing"])
self.assertListEqual(tokenizer.tokenize("unwantedX running"), ["[UNK]", "runn", "##ing"])
def test_is_whitespace(self):
self.assertTrue(_is_whitespace(" "))
self.assertTrue(_is_whitespace("\t"))
self.assertTrue(_is_whitespace("\r"))
self.assertTrue(_is_whitespace("\n"))
self.assertTrue(_is_whitespace("\u00A0"))
self.assertFalse(_is_whitespace("A"))
self.assertFalse(_is_whitespace("-"))
def test_is_control(self):
self.assertTrue(_is_control("\u0005"))
self.assertFalse(_is_control("A"))
self.assertFalse(_is_control(" "))
self.assertFalse(_is_control("\t"))
self.assertFalse(_is_control("\r"))
def test_is_punctuation(self):
self.assertTrue(_is_punctuation("-"))
self.assertTrue(_is_punctuation("$"))
self.assertTrue(_is_punctuation("`"))
self.assertTrue(_is_punctuation("."))
self.assertFalse(_is_punctuation("A"))
self.assertFalse(_is_punctuation(" "))
def test_clean_text(self):
tokenizer = self.get_tokenizer()
# Example taken from the issue https://github.com/huggingface/tokenizers/issues/340
self.assertListEqual([tokenizer.tokenize(t) for t in ["Test", "\xad", "test"]], [["[UNK]"], [], ["[UNK]"]])
if self.test_rust_tokenizer:
rust_tokenizer = self.get_rust_tokenizer()
self.assertListEqual(
[rust_tokenizer.tokenize(t) for t in ["Test", "\xad", "test"]], [["[UNK]"], [], ["[UNK]"]]
)
@slow
def test_sequence_builders(self):
tokenizer = self.tokenizer_class.from_pretrained("bert-base-uncased")
text = tokenizer.encode("sequence builders", add_special_tokens=False)
text_2 = tokenizer.encode("multi-sequence build", add_special_tokens=False)
encoded_sentence = tokenizer.build_inputs_with_special_tokens(text)
encoded_pair = tokenizer.build_inputs_with_special_tokens(text, text_2)
assert encoded_sentence == [101] + text + [102]
assert encoded_pair == [101] + text + [102] + text_2 + [102]
def test_offsets_with_special_characters(self):
for tokenizer, pretrained_name, kwargs in self.tokenizers_list:
with self.subTest(f"{tokenizer.__class__.__name__} ({pretrained_name})"):
tokenizer_r = self.rust_tokenizer_class.from_pretrained(pretrained_name, **kwargs)
sentence = f"A, naïve {tokenizer_r.mask_token} AllenNLP sentence."
tokens = tokenizer_r.encode_plus(
sentence,
return_attention_mask=False,
return_token_type_ids=False,
return_offsets_mapping=True,
add_special_tokens=True,
)
do_lower_case = tokenizer_r.do_lower_case if hasattr(tokenizer_r, "do_lower_case") else False
expected_results = (
[
((0, 0), tokenizer_r.cls_token),
((0, 1), "A"),
((1, 2), ","),
((3, 5), "na"),
((5, 6), "##ï"),
((6, 8), "##ve"),
((9, 15), tokenizer_r.mask_token),
((16, 21), "Allen"),
((21, 23), "##NL"),
((23, 24), "##P"),
((25, 33), "sentence"),
((33, 34), "."),
((0, 0), tokenizer_r.sep_token),
]
if not do_lower_case
else [
((0, 0), tokenizer_r.cls_token),
((0, 1), "a"),
((1, 2), ","),
((3, 8), "naive"),
((9, 15), tokenizer_r.mask_token),
((16, 21), "allen"),
((21, 23), "##nl"),
((23, 24), "##p"),
((25, 33), "sentence"),
((33, 34), "."),
((0, 0), tokenizer_r.sep_token),
]
)
self.assertEqual(
[e[1] for e in expected_results], tokenizer_r.convert_ids_to_tokens(tokens["input_ids"])
)
self.assertEqual([e[0] for e in expected_results], tokens["offset_mapping"])
@slow
def test_batch_encode_candidates(self):
tokenizer = self.tokenizer_class.from_pretrained("bert-base-uncased")
text = [["Hello world!", "Nice to meet you!"], ["The cute cat.", "The adorable dog."]]
encoded_sentence = tokenizer.batch_encode_candidates(text, max_length=10, return_tensors="pt")
expected_shape = (2, 2, 10)
assert encoded_sentence["input_ids"].shape == expected_shape
assert encoded_sentence["attention_mask"].shape == expected_shape
assert encoded_sentence["token_type_ids"].shape == expected_shape

View File

@ -35,6 +35,7 @@ PATH_TO_DOC = "docs/source"
# Update this list with models that are supposed to be private.
PRIVATE_MODELS = [
"DPRSpanPredictor",
"RealmBertModel",
"T5Stack",
"TFDPRSpanPredictor",
]
@ -73,6 +74,10 @@ IGNORE_NON_TESTED = PRIVATE_MODELS.copy() + [
"PegasusDecoderWrapper", # Building part of bigger (tested) model.
"DPREncoder", # Building part of bigger (tested) model.
"ProphetNetDecoderWrapper", # Building part of bigger (tested) model.
"RealmBertModel", # Building part of bigger (tested) model.
"RealmReader", # Not regular model.
"RealmScorer", # Not regular model.
"RealmForOpenQA", # Not regular model.
"ReformerForMaskedLM", # Needs to be setup as decoder.
"Speech2Text2DecoderWrapper", # Building part of bigger (tested) model.
"TFDPREncoder", # Building part of bigger (tested) model.
@ -129,6 +134,10 @@ IGNORE_NON_AUTO_CONFIGURED = PRIVATE_MODELS.copy() + [
"RagModel",
"RagSequenceForGeneration",
"RagTokenForGeneration",
"RealmEmbedder",
"RealmForOpenQA",
"RealmScorer",
"RealmReader",
"TFDPRReader",
"TFGPT2DoubleHeadsModel",
"TFOpenAIGPTDoubleHeadsModel",