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Evaluating Full Lemmatization of Croatian Texts (CROSBI ID 39752)

Prilog u knjizi | izvorni znanstveni rad

Agić, Željko ; Tadić, Marko ; Dovedan, Zdravko Evaluating Full Lemmatization of Croatian Texts // Technologies for the Processing and Retrieval of Semi- Structured Documents: Experience from the CADIAL Project / Tadić, Marko ; Dalbelo Bašić, Bojana ; Moens, Marie-Francine (ur.). Zagreb: Hrvatsko društvo za jezične tehnologije, 2009. str. 133-144

Podaci o odgovornosti

Agić, Željko ; Tadić, Marko ; Dovedan, Zdravko

engleski

Evaluating Full Lemmatization of Croatian Texts

The chapter presents the implementation and evaluation of a module for full lemmatization of Croatian texts. The module implements several lemmatization procedures, all of them based on merging outputs of the previously developed stochastic morphosyntactic tagger CroTag and the infectional lexicon of Croatian. Evaluation of the lemmatization module on two test cases, simulating realistic and ideal operating conditions, provided full lemmatization accuracy scores of 96.96 and 98.15 percent on a newspaper corpus, respectively. It is also shown that a majority of errors in this framework, 57.14 percent in the realistic testing scenario, occur on word forms with external homography. Moreover, approximately 80 percent of all lemmatization errors occur on nouns, adjectives, verbs and adverbs in that particular order. Language resources, testing environment and procedure descriptions are provided in the paper along with a discussion of obtained results and possible future research directions.

full lemmatization, morphosyntactic tagging, Croatian language

This is a corrected version of a paper published in Klopotek, M. ; Przepiorkowski, A. ; Wierzchon, S. ; Trojanowski, K. (eds.) (2009) Recent Advances in Intelligent Information Systems, Academic Publishing House EXIT, Warsaw, 175-184.

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Podaci o prilogu

133-144.

objavljeno

Podaci o knjizi

Technologies for the Processing and Retrieval of Semi- Structured Documents: Experience from the CADIAL Project

Tadić, Marko ; Dalbelo Bašić, Bojana ; Moens, Marie-Francine

Zagreb: Hrvatsko društvo za jezične tehnologije

2009.

978-953-55375-1-9

Povezanost rada

Računarstvo, Informacijske i komunikacijske znanosti, Filologija