spellcheck_benchmark.py

# coding=utf-8
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# Lint as: python3
"""The Russian Spellcheck Benchmark"""

import os
import json
import pandas as pd
from typing import List, Dict, Optional

import datasets


_RUSSIAN_SPELLCHECK_BENCHMARK_DESCRIPTION = """
                Russian Spellcheck Benchmark is a new benchmark for spelling correction in Russian language.
                It includes four datasets, each of which consists of pairs of sentences in Russian language. 
                Each pair embodies sentence, which may contain spelling errors, and its corresponding correction. 
                Datasets were gathered from various sources and domains including social networks, internet blogs, github commits, 
                medical anamnesis, literature, news, reviews and more.
                """

_MULTIDOMAIN_GOLD_DESCRIPTION = """
                MultidomainGold is a dataset of 3500 sentence pairs 
                dedicated to a problem of automatic spelling correction in Russian language. 
                The dataset is gathered from seven different domains including news, Russian classic literature,
                social media texts, open web, strategic documents, subtitles and reviews.
                It has been passed through two-stage manual labeling process with native speakers as annotators
                to correct spelling violation and preserve original style of text at the same time.
                """

_GITHUB_TYPO_CORPUS_RU_DESCRIPTION = """
                GitHubTypoCorpusRu is a manually labeled part of GitHub Typo Corpus https://arxiv.org/abs/1911.12893.
                The sentences with "ru" tag attached to them have been extracted from GitHub Typo Corpus 
                and pass them through manual labeling to ensure the corresponding corrections are right.
                """

_RUSPELLRU_DESCRIPTION = """
                RUSpellRU is a first benchmark on the task of automatic spelling correction for Russian language 
                introduced in https://www.dialog-21.ru/media/3427/sorokinaaetal.pdf. 
                Original sentences are drawn from social media domain and labeled by
                human annotators. 
                """

_MEDSPELLCHECK_DESCRIPTION = """
                The dataset is taken from GitHub repo associated with eponymos project https://github.com/DmitryPogrebnoy/MedSpellChecker.
                Original sentences are taken from anonymized medical anamnesis and passed through 
                two-stage manual labeling pipeline. 
                """

_RUSSIAN_SPELLCHECK_BENCHMARK_CITATION = """ # TODO: add citation"""

_MULTIDOMAIN_GOLD_CITATION = """ # TODO: add citation from Dialog"""

_GITHUB_TYPO_CORPUS_RU_CITATION = """
@article{DBLP:journals/corr/abs-1911-12893,
                author       = {Masato Hagiwara and
                                Masato Mita},
                title        = {GitHub Typo Corpus: {A} Large-Scale Multilingual Dataset of Misspellings
                                and Grammatical Errors},
                journal      = {CoRR},
                volume       = {abs/1911.12893},
                year         = {2019},
                url          = {http://arxiv.org/abs/1911.12893},
                eprinttype    = {arXiv},
                eprint       = {1911.12893},
                timestamp    = {Wed, 08 Jan 2020 15:28:22 +0100},
                biburl       = {https://dblp.org/rec/journals/corr/abs-1911-12893.bib},
                bibsource    = {dblp computer science bibliography, https://dblp.org}
                }
"""

_RUSPELLRU_CITATION = """
@inproceedings{Shavrina2016SpellRuevalT,
                title={SpellRueval : the FiRSt Competition on automatiC Spelling CoRReCtion FoR RuSSian},
                author={Tatiana Shavrina and Россия Москва and Москва Яндекс and Россия and Россия Долгопрудный},
                year={2016}
                }
"""

_LICENSE = "apache-2.0"


class RussianSpellcheckBenchmarkConfig(datasets.BuilderConfig):
    """BuilderConfig for RussianSpellcheckBenchmark."""

    def __init__(
        self, 
        data_urls: Dict[str,str], 
        features: List[str],
        citation: str,
        **kwargs,
    ):
        """BuilderConfig for RussianSpellcheckBenchmark.
        Args:
        features: *list[string]*, list of the features that will appear in the
            feature dict. Should not include "label".
        data_urls: *dict[string]*, urls to download the zip file from.
        **kwargs: keyword arguments forwarded to super.
        """
        super(RussianSpellcheckBenchmarkConfig, self).__init__(version=datasets.Version("0.0.1"), **kwargs)
        self.data_urls = data_urls
        self.features = features
        self.citation = citation


class RussianSpellcheckBenchmark(datasets.GeneratorBasedBuilder):
    """Russian Spellcheck Benchmark."""

    BUILDER_CONFIGS = [
        RussianSpellcheckBenchmarkConfig(
            name="GitHubTypoCorpusRu",
            description=_GITHUB_TYPO_CORPUS_RU_DESCRIPTION,
            data_urls={
                "test": "data/GitHubTypoCorpusRu/test.json",
            },
            features=["source", "correction", "domain"],
            citation=_GITHUB_TYPO_CORPUS_RU_CITATION,
        ),
        RussianSpellcheckBenchmarkConfig(
            name="MedSpellchecker",
            description=_MEDSPELLCHECK_DESCRIPTION,
            data_urls={
                "test": "data/MedSpellchecker/test.json",
            },
            features=["source", "correction", "domain"],
            citation="",
        ),
        RussianSpellcheckBenchmarkConfig(
            name="MultidomainGold",
            description=_MULTIDOMAIN_GOLD_DESCRIPTION,
            data_urls={
                "train": "data/MultidomainGold/train.json",
                "test": "data/MultidomainGold/test.json",
            },
            features=["source", "correction", "domain"],
            citation=_MULTIDOMAIN_GOLD_CITATION,
        ),
        RussianSpellcheckBenchmarkConfig(
            name="RUSpellRU",
            description=_RUSPELLRU_DESCRIPTION,
            data_urls={
                "test": "data/RUSpellRU/test.json",
                "train": "data/RUSpellRU/train.json",
            },
            features=["source", "correction", "domain"],
            citation=_RUSPELLRU_CITATION,
        ),
    ]

    def _info(self) -> datasets.DatasetInfo:
        features = {
                "source": datasets.Value("string"),
                "correction": datasets.Value("string"),
                "domain": datasets.Value("string"),
            }

        return datasets.DatasetInfo(
            features=datasets.Features(features),
            description=_RUSSIAN_SPELLCHECK_BENCHMARK_DESCRIPTION + self.config.description,
            license=_LICENSE,
            citation=self.config.citation + "\n" + _RUSSIAN_SPELLCHECK_BENCHMARK_CITATION,
        )

    def _split_generators(
        self, dl_manager: datasets.DownloadManager
    ) -> List[datasets.SplitGenerator]:
        urls_to_download = self.config.data_urls
        downloaded_files = dl_manager.download_and_extract(urls_to_download)
        if self.config.name == "GitHubTypoCorpusRu" or \
           self.config.name == "MedSpellchecker":
           return [
            datasets.SplitGenerator(
                name=datasets.Split.TEST,
                gen_kwargs={
                    "data_file": downloaded_files["test"],
                    "split": datasets.Split.TEST,
                },
            )
        ] 
        return [
            datasets.SplitGenerator(
                name=datasets.Split.TRAIN,
                gen_kwargs={
                    "data_file": downloaded_files["train"],
                    "split": datasets.Split.TRAIN,
                },
            ),
            datasets.SplitGenerator(
                name=datasets.Split.TEST,
                gen_kwargs={
                    "data_file": downloaded_files["test"],
                    "split": datasets.Split.TEST,
                },
            )
        ]

    def _generate_examples(self, data_file, split):
        with open(data_file, encoding="utf-8") as f:
            key = 0
            for line in f:
                row = json.loads(line)
                example = {feature: row[feature] for feature in self.config.features}
                yield key, example
                key += 1