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Priyansh2 / indicnlp_catalog

A collaborative catalog of resources for Indian language NLP

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A Catalog of resources for Indian language NLP

Please suggest any other resources you may be aware of. Raise a pull request or an issue to add more resources to the catalog. Put the proposed entry in the following format:

[Wikipedia Dumps](https://dumps.wikimedia.org/)

Add a small, informative description of the dataset and provide links to any paper/article/site documenting the resource. Mention your name too. We would like to acknowlege your contribution to building this catalog in the CONTRIBUTORS list.

🆕 Added Evaluation Benchmarks sections

👍 Featured Resources

  • 🆕AI4Bharat IndicNLG Suite: NLG benchmark for 11 languages spanning 5 generation tasks. Pre-trained models ara also available.
  • 🆕AI4Bharat IndicBART: Multilingual mBART based embeddings spanning 12 languages for Natural Language Generation (including Indian English).
  • 🆕HiNER: Large manually annotated NER dataset for Hindi (100k sentences, 2m+ tokens) [paper]
  • AI4Bharat Cross-lingual Semantic Textual Similarity: 10 sentences across 11 en-Indic language pairs annotated on a scale of 0-5 as per SemEval cross-lingual STS guidelines
  • XL-Sum: Extreme Summarization data for many Indian languages
  • BUILD: Indian Legal Data Benchmark for rhetorical roles

Browse the entire catalog...

🙋Note: Many known resources have not yet been classified into the catalog. They can be found as open issues in the repo.

Major Indic Language NLP Repositories

Libraries and Tools

  • Indic NLP Library: Python Library for various Indian language NLP tasks like tokenization, sentence splitting, normalization, script conversion, transliteration, etc
  • pyiwn: Python Interface to IndoWordNet
  • Indic-OCR : OCR for Indic Scripts
  • CLTK: Toolkit for many of the world's classical languages. Support for Sanskrit. Some parts of the Sanskrit library are forked from the Indic NLP Library.
  • iNLTK: iNLTK aims to provide out of the box support for various NLP tasks that an application developer might need for Indic languages.
  • Sanskrit Coders Indic Transliteration: Script conversion and romanization for Indian languages.
  • Smart Sanskirt Annotator: Annotation tool for Sanskrit paper
  • BNLP: Bengali language processing toolkit with tokenization, embedding, POS tagging, NER suppport
  • CodeSwitch: Language identification, POS Tagging, NER, sentiment analysis support for code mixed data including Hindi and Nepali language

Evaluation Benchmarks

Benchmarks spanning multiple tasks.

  • AI4Bharat IndicGLUE: NLU benchmark for 11 languages.
  • AI4Bharat IndicNLG Suite: NLG benchmark for 11 languages spanning 5 generation tasks.
  • GLUECoS: For Hindi-English code-mixed benchmark containing the following tasks - Language Identification (LID), POS Tagging (POS), Named Entity Recognition (NER), Sentiment Analysis (SA), Question Answering (QA), Natural Language Inference (NLI).
  • AI4Bharat Text Classification: A compilation of classification datasets for 10 languages.
  • WAT 2021 Translation Dataset: Standard train and test sets for translation between English and 10 Indian languages.

Standards

Text Corpora

Monolingual Corpus

Language Identification

Lexical Resources

NER Corpora

Parallel Translation Corpus

Parallel Transliteration Corpus

Text Classification

Textual Entailment/Natural Language Inference

  • XNLI corpus: Hindi and Urdu test sets and machine translated training sets (from English MultiNLI).

Paraphrase

Sentiment, Sarcasm, Emotion Analysis

Hate Speech and Offensive Comments

Question Answering

Dialog

Discourse

Information Extraction

POS Tagged corpus

Chunk Corpus

Dependency Parse Corpus

Coreference Corpus

Models

Word Embeddings

Pre-trained Language Models

  • AI4Bharat IndicBERT: Multilingual ALBERT based embeddings spanning 12 languages for Natural Language Understanding (including Indian English).
  • AI4Bharat IndicBART: Multilingual mBART based embeddings spanning 12 languages for Natural Language Generation (including Indian English).
  • MuRIL: Multilingual mBERT based embeddings spanning 17 languages and their transliterated counterparts for Natural Language Understanding (paper).
  • BERT Multilingual: BERT model trained on Wikipedias of many languages (including major Indic languages).
  • iNLTK: ULMFit and TransformerXL pre-trained embeddings for many languages trained on Wikipedia and some News articles.
  • albert-base-sanskrit: ALBERT-based model trained on Sanskrit Wikipedia.
  • RoBERTa-hindi-guj-san: Multilingual RoBERTa like model trained on Hindi, Sanskrit and Gujarati.
  • Bangla-BERT-Base: Bengali BERT model trained on Bengali wikipedia and OSCAR datasets

Multilingual Word Embeddings

Morphanalyzers

Translation Models

  • IndicTrans: Multilingual neural translation models for translation between English and 11 Indian languages. Supports translation between Indian langauges as well. A total of 110 translation directions are supported.
  • Shata-Anuvaadak: 110 language pairs
  • LTRC Vanee: Dependency based Statistical MT system from English to Hindi

Speech Models

Speech Corpora

OCR Corpora

Multimodal Corpora

Language Specific Catalogs

Pointers to language-specific NLP resource catalogs

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A collaborative catalog of resources for Indian language NLP