How low is too low? A monolingual take on lemmatisation in Indian languages
| Autor: | Kumar Saurav, Pushpak Bhattacharyya, Kumar Saunack |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
business.industry
Low resource Computer science Lemmatisation Realization (linguistics) 02 engineering and technology Variance (accounting) computer.software_genre Resource (project management) 020204 information systems 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing Artificial intelligence business computer Natural language processing Word (computer architecture) Sparse matrix |
| Zdroj: | NAACL-HLT |
| DOI: | 10.18653/v1/2021.naacl-main.322 |
| Popis: | Lemmatization aims to reduce the sparse data problem by relating the inflected forms of a word to its dictionary form. Most prior work on ML based lemmatization has focused on high resource languages, where data sets (word forms) are readily available. For languages which have no linguistic work available, especially on morphology or in languages where the computational realization of linguistic rules is complex and cumbersome, machine learning based lemmatizers are the way togo. In this paper, we devote our attention to lemmatisation for low resource, morphologically rich scheduled Indian languages using neural methods. Here, low resource means only a small number of word forms are available. We perform tests to analyse the variance in monolingual models’ performance on varying the corpus size and contextual morphological tag data for training. We show that monolingual approaches with data augmentation can give competitive accuracy even in the low resource setting, which augurs well for NLP in low resource setting. |
| Databáze: | OpenAIRE |
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