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ANALYSING ACCURACY OF SLOVAK LANGUAGE LEMMATIZATION AND MSD TAGGING

100%
Garabík R., Mitana D.
Slovenská reč (Slovak Language)
|
2023
|
vol. 88
|
issue 2
129 – 140
EN
Lemmatization and morphological tagging is an indispensable step in Slovak corpus linguistics. In this article, we evaluate two state-of-the-art Slovak language lemmatizers and MSD taggers. One is based on MorphoDiTa and the other is based on spaCy. We measured accuracy on the test subset of manually lemmatized and MSD annotated corpus and found that the combination of lemma and tag achieved 93.5% accuracy with MorphoDiTa, and 95.6% accuracy with spaCy. Most of the errors occurred in disambiguating MSD tags for homonymous uninflected parts of speech such as particles, conjunctions, and adverbs, and in disambiguating singular masculine inanimate nominative and accusative. In these cases, spaCy shows a noticeable improvement over MorphoDiTa, likely due to a better exploitation of the context of the words.
2

LEMATIZÁCIA, MORFOLOGICKÁ ANOTÁCIA A DEZAMBIGUÁCIA SLOVENSKÉHO TEXTU – WEBOVÉ ROZHRANIE

75%
Garabík R., Bobeková K.
Slovenská reč (Slovak Language)
|
2021
|
vol. 86
|
issue 1
104 – 109
EN
Lemmatization, morphological (or morphosyntactic) annotation (MSD) and disambiguation is a basic and indispensable step in Natural Language Processing of languages with a moderate level of inflection. We present a web interface demonstrating the de facto default lemmatization and MSD for Slovak, as used in major Slovak corpora (with several enhancements yet to be applied in the corpora). The interface can be used chiefly for presentation or pedagogical purposes, with the morphological tags expanded and explained using plain language in several languages, including two different terminological registers of Slovak (professional linguistic or a “common” one).
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