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README (1).md

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+---
+pretty_name: Opus100
+task_categories:
+- translation
+multilinguality:
+- translation
+task_ids: []
+language:
+- af
+- am
+- an
+- ar
+- as
+- az
+- be
+- bg
+- bn
+- br
+- bs
+- ca
+- cs
+- cy
+- da
+- de
+- dz
+- el
+- en
+- eo
+- es
+- et
+- eu
+- fa
+- fi
+- fr
+- fy
+- ga
+- gd
+- gl
+- gu
+- ha
+- he
+- hi
+- hr
+- hu
+- hy
+- id
+- ig
+- is
+- it
+- ja
+- ka
+- kk
+- km
+- kn
+- ko
+- ku
+- ky
+- li
+- lt
+- lv
+- mg
+- mk
+- ml
+- mn
+- mr
+- ms
+- mt
+- my
+- nb
+- ne
+- nl
+- nn
+- 'no'
+- oc
+- or
+- pa
+- pl
+- ps
+- pt
+- ro
+- ru
+- rw
+- se
+- sh
+- si
+- sk
+- sl
+- sq
+- sr
+- sv
+- ta
+- te
+- tg
+- th
+- tk
+- tr
+- tt
+- ug
+- uk
+- ur
+- uz
+- vi
+- wa
+- xh
+- yi
+- yo
+- zh
+- zu
+annotations_creators:
+- no-annotation
+language_creators:
+- found
+source_datasets:
+- extended
+size_categories:
+- 100K<n<1M
+- 10K<n<100K
+- 1K<n<10K
+- 1M<n<10M
+- n<1K
+license:
+- unknown
+paperswithcode_id: opus-100
+dataset_info:
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+- config_name: en-xh
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - en
+        - xh
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+  download_size: 20503199
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+- config_name: en-yi
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - en
+        - yi
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+  - name: validation
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+  download_size: 284031
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+- config_name: en-yo
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - en
+        - yo
+  splits:
+  - name: train
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+- config_name: en-zh
+  features:
+  - name: translation
+    dtype:
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+        languages:
+        - en
+        - zh
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+    num_examples: 1000000
+  - name: validation
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+  download_size: 83265500
+  dataset_size: 201086719
+- config_name: en-zu
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - en
+        - zu
+  splits:
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+  - name: train
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+    num_examples: 38616
+  - name: validation
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+    num_examples: 2000
+  download_size: 889951
+  dataset_size: 3037249
+- config_name: ar-de
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - ar
+        - de
+  splits:
+  - name: test
+    num_bytes: 238599
+    num_examples: 2000
+  download_size: 2556791
+  dataset_size: 238599
+- config_name: ar-fr
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - ar
+        - fr
+  splits:
+  - name: test
+    num_bytes: 547382
+    num_examples: 2000
+  download_size: 2556791
+  dataset_size: 547382
+- config_name: ar-nl
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - ar
+        - nl
+  splits:
+  - name: test
+    num_bytes: 212936
+    num_examples: 2000
+  download_size: 2556791
+  dataset_size: 212936
+- config_name: ar-ru
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - ar
+        - ru
+  splits:
+  - name: test
+    num_bytes: 808270
+    num_examples: 2000
+  download_size: 2556791
+  dataset_size: 808270
+- config_name: ar-zh
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - ar
+        - zh
+  splits:
+  - name: test
+    num_bytes: 713412
+    num_examples: 2000
+  download_size: 2556791
+  dataset_size: 713412
+- config_name: de-fr
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - de
+        - fr
+  splits:
+  - name: test
+    num_bytes: 458746
+    num_examples: 2000
+  download_size: 2556791
+  dataset_size: 458746
+- config_name: de-nl
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - de
+        - nl
+  splits:
+  - name: test
+    num_bytes: 403886
+    num_examples: 2000
+  download_size: 2556791
+  dataset_size: 403886
+- config_name: de-ru
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - de
+        - ru
+  splits:
+  - name: test
+    num_bytes: 315779
+    num_examples: 2000
+  download_size: 2556791
+  dataset_size: 315779
+- config_name: de-zh
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - de
+        - zh
+  splits:
+  - name: test
+    num_bytes: 280397
+    num_examples: 2000
+  download_size: 2556791
+  dataset_size: 280397
+- config_name: fr-nl
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - fr
+        - nl
+  splits:
+  - name: test
+    num_bytes: 368646
+    num_examples: 2000
+  download_size: 2556791
+  dataset_size: 368646
+- config_name: fr-ru
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - fr
+        - ru
+  splits:
+  - name: test
+    num_bytes: 732724
+    num_examples: 2000
+  download_size: 2556791
+  dataset_size: 732724
+- config_name: fr-zh
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - fr
+        - zh
+  splits:
+  - name: test
+    num_bytes: 619394
+    num_examples: 2000
+  download_size: 2556791
+  dataset_size: 619394
+- config_name: nl-ru
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - nl
+        - ru
+  splits:
+  - name: test
+    num_bytes: 256067
+    num_examples: 2000
+  download_size: 2556791
+  dataset_size: 256067
+- config_name: nl-zh
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - nl
+        - zh
+  splits:
+  - name: test
+    num_bytes: 183641
+    num_examples: 2000
+  download_size: 2556791
+  dataset_size: 183641
+- config_name: ru-zh
+  features:
+  - name: translation
+    dtype:
+      translation:
+        languages:
+        - ru
+        - zh
+  splits:
+  - name: test
+    num_bytes: 916114
+    num_examples: 2000
+  download_size: 2556791
+  dataset_size: 916114
+config_names:
+- af-en
+- am-en
+- an-en
+- ar-de
+- ar-en
+- ar-fr
+- ar-nl
+- ar-ru
+- ar-zh
+- as-en
+- az-en
+- be-en
+- bg-en
+- bn-en
+- br-en
+- bs-en
+- ca-en
+- cs-en
+- cy-en
+- da-en
+- de-en
+- de-fr
+- de-nl
+- de-ru
+- de-zh
+- dz-en
+- el-en
+- en-eo
+- en-es
+- en-et
+- en-eu
+- en-fa
+- en-fi
+- en-fr
+- en-fy
+- en-ga
+- en-gd
+- en-gl
+- en-gu
+- en-ha
+- en-he
+- en-hi
+- en-hr
+- en-hu
+- en-hy
+- en-id
+- en-ig
+- en-is
+- en-it
+- en-ja
+- en-ka
+- en-kk
+- en-km
+- en-kn
+- en-ko
+- en-ku
+- en-ky
+- en-li
+- en-lt
+- en-lv
+- en-mg
+- en-mk
+- en-ml
+- en-mn
+- en-mr
+- en-ms
+- en-mt
+- en-my
+- en-nb
+- en-ne
+- en-nl
+- en-nn
+- en-no
+- en-oc
+- en-or
+- en-pa
+- en-pl
+- en-ps
+- en-pt
+- en-ro
+- en-ru
+- en-rw
+- en-se
+- en-sh
+- en-si
+- en-sk
+- en-sl
+- en-sq
+- en-sr
+- en-sv
+- en-ta
+- en-te
+- en-tg
+- en-th
+- en-tk
+- en-tr
+- en-tt
+- en-ug
+- en-uk
+- en-ur
+- en-uz
+- en-vi
+- en-wa
+- en-xh
+- en-yi
+- en-yo
+- en-zh
+- en-zu
+- fr-nl
+- fr-ru
+- fr-zh
+- nl-ru
+- nl-zh
+- ru-zh
+---
+
+# Dataset Card for Opus100
+
+## Table of Contents
+- [Dataset Description](#dataset-description)
+  - [Dataset Summary](#dataset-summary)
+  - [Supported Tasks and Leaderboards](#supported-tasks-and-leaderboards)
+  - [Languages](#languages)
+- [Dataset Structure](#dataset-structure)
+  - [Data Instances](#data-instances)
+  - [Data Fields](#data-fields)
+  - [Data Splits](#data-splits)
+- [Dataset Creation](#dataset-creation)
+  - [Curation Rationale](#curation-rationale)
+  - [Source Data](#source-data)
+  - [Annotations](#annotations)
+  - [Personal and Sensitive Information](#personal-and-sensitive-information)
+- [Considerations for Using the Data](#considerations-for-using-the-data)
+  - [Social Impact of Dataset](#social-impact-of-dataset)
+  - [Discussion of Biases](#discussion-of-biases)
+  - [Other Known Limitations](#other-known-limitations)
+- [Additional Information](#additional-information)
+  - [Dataset Curators](#dataset-curators)
+  - [Licensing Information](#licensing-information)
+  - [Citation Information](#citation-information)
+  - [Contributions](#contributions)
+
+## Dataset Description
+
+- **Homepage:** [Link](http://opus.nlpl.eu/opus-100.php) 
+- **Repository:** [GitHub](https://github.com/EdinburghNLP/opus-100-corpus)
+- **Paper:** [ARXIV](https://arxiv.org/abs/2004.11867)
+- **Leaderboard:** 
+- **Point of Contact:** 
+
+### Dataset Summary
+
+OPUS-100 is English-centric, meaning that all training pairs include English on either the source or target side. The corpus covers 100 languages (including English). Selected the languages based on the volume of parallel data available in OPUS.
+
+### Supported Tasks and Leaderboards
+
+[More Information Needed]
+
+### Languages
+
+OPUS-100 contains approximately 55M sentence pairs. Of the 99 language pairs, 44 have 1M sentence pairs of training data, 73 have at least 100k, and 95 have at least 10k.
+
+## Dataset Structure
+
+### Data Instances
+
+```
+{
+  "ca": "El departament de bombers té el seu propi equip d'investigació.",
+  "en": "Well, the fire department has its own investigative unit."
+}
+```
+
+### Data Fields
+
+- `src_tag`: `string` text in source language
+- `tgt_tag`: `string` translation of source language in target language
+
+### Data Splits
+
+The dataset is split into training, development, and test portions. Data was prepared by randomly sampled up to 1M sentence pairs per language pair for training and up to 2000 each for development and test. To ensure that there was no overlap (at the monolingual sentence level) between the training and development/test data, they applied a filter during sampling to exclude sentences that had already been sampled. Note that this was done cross-lingually so that, for instance, an English sentence in the Portuguese-English portion of the training data could not occur in the Hindi-English test set.
+
+## Dataset Creation
+
+### Curation Rationale
+
+[More Information Needed]
+
+### Source Data
+
+[More Information Needed]
+
+#### Initial Data Collection and Normalization
+
+[More Information Needed]
+
+#### Who are the source language producers?
+
+[More Information Needed]
+
+### Annotations
+
+#### Annotation process
+
+[More Information Needed]
+
+#### Who are the annotators?
+
+[More Information Needed]
+
+### Personal and Sensitive Information
+
+[More Information Needed]
+
+## Considerations for Using the Data
+
+### Social Impact of Dataset
+
+[More Information Needed]
+
+### Discussion of Biases
+
+[More Information Needed]
+
+### Other Known Limitations
+
+[More Information Needed]
+
+## Additional Information
+
+### Dataset Curators
+
+[More Information Needed]
+
+### Licensing Information
+
+[More Information Needed]
+
+### Citation Information
+
+```
+@misc{zhang2020improving,
+      title={Improving Massively Multilingual Neural Machine Translation and Zero-Shot Translation}, 
+      author={Biao Zhang and Philip Williams and Ivan Titov and Rico Sennrich},
+      year={2020},
+      eprint={2004.11867},
+      archivePrefix={arXiv},
+      primaryClass={cs.CL}
+}
+```
+
+### Contributions
+
+Thanks to [@vasudevgupta7](https://github.com/vasudevgupta7) for adding this dataset.

opus100.py

@@ -0,0 +1,271 @@
+# coding=utf-8
+# Copyright 2020 The HuggingFace Datasets Authors and the current dataset script contributor.
+#
+# 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.
+"""OPUS-100"""
+
+
+import datasets
+
+
+_CITATION = """\
+@misc{zhang2020improving,
+      title={Improving Massively Multilingual Neural Machine Translation and Zero-Shot Translation},
+      author={Biao Zhang and Philip Williams and Ivan Titov and Rico Sennrich},
+      year={2020},
+      eprint={2004.11867},
+      archivePrefix={arXiv},
+      primaryClass={cs.CL}
+}
+"""
+
+_DESCRIPTION = """\
+OPUS-100 is English-centric, meaning that all training pairs include English on either the source or target side.
+The corpus covers 100 languages (including English).OPUS-100 contains approximately 55M sentence pairs.
+Of the 99 language pairs, 44 have 1M sentence pairs of training data, 73 have at least 100k, and 95 have at least 10k.
+"""
+
+_URL = {
+    "supervised": "https://object.pouta.csc.fi/OPUS-100/v1.0/opus-100-corpus-{}-v1.0.tar.gz",
+    "zero-shot": "https://object.pouta.csc.fi/OPUS-100/v1.0/opus-100-corpus-zeroshot-v1.0.tar.gz",
+}
+
+_SupervisedLanguagePairs = [
+    "af-en",
+    "am-en",
+    "an-en",
+    "ar-en",
+    "as-en",
+    "az-en",
+    "be-en",
+    "bg-en",
+    "bn-en",
+    "br-en",
+    "bs-en",
+    "ca-en",
+    "cs-en",
+    "cy-en",
+    "da-en",
+    "de-en",
+    "dz-en",
+    "el-en",
+    "en-eo",
+    "en-es",
+    "en-et",
+    "en-eu",
+    "en-fa",
+    "en-fi",
+    "en-fr",
+    "en-fy",
+    "en-ga",
+    "en-gd",
+    "en-gl",
+    "en-gu",
+    "en-ha",
+    "en-he",
+    "en-hi",
+    "en-hr",
+    "en-hu",
+    "en-hy",
+    "en-id",
+    "en-ig",
+    "en-is",
+    "en-it",
+    "en-ja",
+    "en-ka",
+    "en-kk",
+    "en-km",
+    "en-ko",
+    "en-kn",
+    "en-ku",
+    "en-ky",
+    "en-li",
+    "en-lt",
+    "en-lv",
+    "en-mg",
+    "en-mk",
+    "en-ml",
+    "en-mn",
+    "en-mr",
+    "en-ms",
+    "en-mt",
+    "en-my",
+    "en-nb",
+    "en-ne",
+    "en-nl",
+    "en-nn",
+    "en-no",
+    "en-oc",
+    "en-or",
+    "en-pa",
+    "en-pl",
+    "en-ps",
+    "en-pt",
+    "en-ro",
+    "en-ru",
+    "en-rw",
+    "en-se",
+    "en-sh",
+    "en-si",
+    "en-sk",
+    "en-sl",
+    "en-sq",
+    "en-sr",
+    "en-sv",
+    "en-ta",
+    "en-te",
+    "en-tg",
+    "en-th",
+    "en-tk",
+    "en-tr",
+    "en-tt",
+    "en-ug",
+    "en-uk",
+    "en-ur",
+    "en-uz",
+    "en-vi",
+    "en-wa",
+    "en-xh",
+    "en-yi",
+    "en-yo",
+    "en-zh",
+    "en-zu",
+]
+
+_0shotLanguagePairs = [
+    "ar-de",
+    "ar-fr",
+    "ar-nl",
+    "ar-ru",
+    "ar-zh",
+    "de-fr",
+    "de-nl",
+    "de-ru",
+    "de-zh",
+    "fr-nl",
+    "fr-ru",
+    "fr-zh",
+    "nl-ru",
+    "nl-zh",
+    "ru-zh",
+]
+
+
+class Opus100Config(datasets.BuilderConfig):
+    """BuilderConfig for Opus100"""
+
+    def __init__(self, language_pair, **kwargs):
+        super().__init__(**kwargs)
+        """
+
+        Args:
+            language_pair: language pair, you want to load
+            **kwargs: keyword arguments forwarded to super.
+        """
+        self.language_pair = language_pair
+
+
+class Opus100(datasets.GeneratorBasedBuilder):
+    """OPUS-100 is English-centric, meaning that all training pairs include English on either the source or target side."""
+
+    VERSION = datasets.Version("1.0.0")
+
+    BUILDER_CONFIG_CLASS = Opus100Config
+    BUILDER_CONFIGS = [
+        Opus100Config(name=pair, description=_DESCRIPTION, language_pair=pair)
+        for pair in _SupervisedLanguagePairs + _0shotLanguagePairs
+    ]
+
+    def _info(self):
+        src_tag, tgt_tag = self.config.language_pair.split("-")
+        return datasets.DatasetInfo(
+            description=_DESCRIPTION,
+            features=datasets.Features({"translation": datasets.features.Translation(languages=(src_tag, tgt_tag))}),
+            supervised_keys=(src_tag, tgt_tag),
+            homepage="http://opus.nlpl.eu/opus-100.php",
+            citation=_CITATION,
+        )
+
+    def _split_generators(self, dl_manager):
+
+        lang_pair = self.config.language_pair
+        src_tag, tgt_tag = lang_pair.split("-")
+
+        domain = "supervised"
+        if lang_pair in _0shotLanguagePairs:
+            domain = "zero-shot"
+
+        if domain == "supervised":
+            archive = dl_manager.download(_URL["supervised"].format(lang_pair))
+        elif domain == "zero-shot":
+            archive = dl_manager.download(_URL["zero-shot"])
+
+        data_dir = "/".join(["opus-100-corpus", "v1.0", domain, lang_pair])
+        output = []
+
+        test = datasets.SplitGenerator(
+            name=datasets.Split.TEST,
+            # These kwargs will be passed to _generate_examples
+            gen_kwargs={
+                "filepath": f"{data_dir}/opus.{lang_pair}-test.{src_tag}",
+                "labelpath": f"{data_dir}/opus.{lang_pair}-test.{tgt_tag}",
+                "files": dl_manager.iter_archive(archive),
+            },
+        )
+
+        available_files = [path for path, _ in dl_manager.iter_archive(archive)]
+        if f"{data_dir}/opus.{lang_pair}-test.{src_tag}" in available_files:
+            output.append(test)
+
+        if domain == "supervised":
+
+            train = datasets.SplitGenerator(
+                name=datasets.Split.TRAIN,
+                gen_kwargs={
+                    "filepath": f"{data_dir}/opus.{lang_pair}-train.{src_tag}",
+                    "labelpath": f"{data_dir}/opus.{lang_pair}-train.{tgt_tag}",
+                    "files": dl_manager.iter_archive(archive),
+                },
+            )
+
+            if f"{data_dir}/opus.{lang_pair}-train.{src_tag}" in available_files:
+                output.append(train)
+
+            valid = datasets.SplitGenerator(
+                name=datasets.Split.VALIDATION,
+                # These kwargs will be passed to _generate_examples
+                gen_kwargs={
+                    "filepath": f"{data_dir}/opus.{lang_pair}-dev.{src_tag}",
+                    "labelpath": f"{data_dir}/opus.{lang_pair}-dev.{tgt_tag}",
+                    "files": dl_manager.iter_archive(archive),
+                },
+            )
+
+            if f"{data_dir}/opus.{lang_pair}-dev.{src_tag}" in available_files:
+                output.append(valid)
+
+        return output
+
+    def _generate_examples(self, filepath, labelpath, files):
+        """Yields examples."""
+        src_tag, tgt_tag = self.config.language_pair.split("-")
+        src, tgt = None, None
+        for path, f in files:
+            if path == filepath:
+                src = f.read().decode("utf-8").split("\n")[:-1]
+            elif path == labelpath:
+                tgt = f.read().decode("utf-8").split("\n")[:-1]
+            if src is not None and tgt is not None:
+                for idx, (s, t) in enumerate(zip(src, tgt)):
+                    yield idx, {"translation": {src_tag: s, tgt_tag: t}}
+                break