Naslov
Question Classification for a Croatian QA System

Autori
Lombarović, Tomislav ; Šnajder, Jan ; Dalbelo Bašić, Bojana

Izvornik
Lecture notes in Artificial Intelligence (Text, Speech and Dialogue, 14th International Conference, TSD 2011, Pilsen, Czech Republic, September 2011) (0302-9743) 6836 (2011); 403-410

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Question classification; question answering; information retrieval; Croatian language

Sažetak
Question Answering (QA) systems provide efficient means for retrieval of information, which in many cases more directly address users' information needs. The performance of a QA system crucially depends on its ability to correctly classify the query question according to the expected answer type. This paper addresses the problem of a question classification for the Croatian language, as a first step towards building an open-domain QA system. We compare different machine learning classifiers on a Croatian test collection based on a two-level question taxonomy. The evaluation results are encouraging and comparable to state- of-the-art results for other languages: accuracy is over 80% for coarse-grained classification and almost 70% for fine-grained classification.

Izvorni jezik
Engleski

Znanstvena područja
Računarstvo

POVEZANOST RADA