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The Effect of (Historical) Language Variation on the East Slavic Lects Lematisers Performance

Afanasev, Ilia ; Lyashevskaya, Olga ; Rebrikov, Stefan ; Shishkina, Yana ; Trofimov, Igor ; Vlasova, Natalia

Jazykovedný časopis, 2023-06, Vol.74 (1), p.225-233 [Periódico revisado por pares]

Bratislava: Sciendo

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Título:
The Effect of (Historical) Language Variation on the East Slavic Lects Lematisers Performance
Autor: Afanasev, Ilia ; Lyashevskaya, Olga ; Rebrikov, Stefan ; Shishkina, Yana ; Trofimov, Igor ; Vlasova, Natalia
Assuntos: Accuracy ; Data ; Diachronic linguistics ; Dialectology ; East Slavic ; Error analysis ; Heuristic ; historical linguistics ; historical NLP ; Language variation ; lemmatisation ; Natural language processing ; Regional variations ; Russian language ; Slavic languages
É parte de: Jazykovedný časopis, 2023-06, Vol.74 (1), p.225-233
Descrição: The need to develop tools for historical and regional variations is becoming more urgent in natural language processing. In this paper, we present two candidate systems for lemmatising historical East Slavic lects (Late Old East Slavic and Middle Russian), as well as modern regional East Slavic lects (Belogornoje and Megra): BERT-based end-to-end pipeline with language-specific heuristics and sequence-to-sequence BART-based encoderdecoder. To evaluate their predictions, we use accuracy score and string similarity measures, such as Levenshtein distance. The BERT-based model is more suitable for the regional data, achieving 85% accuracy score, and only 74% on the historical data. BART-based model climbs up to 92.6% accuracy score on the historical data, yet gets only 80% on the regional data. We provide an error analysis and discuss ways to enhance models, such as dictionary lookup and spellchecker.
Editor: Bratislava: Sciendo
Idioma: Inglês;Eslovaco

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The Effect of (Historical) Language Variation on the East Slavic Lects Lematisers Performance

Afanasev, Ilia ; Lyashevskaya, Olga ; Rebrikov, Stefan ; Shishkina, Yana ; Trofimov, Igor ; Vlasova, Natalia

Bratislava: Sciendo

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