A LANGUAGE MODELING APPROACH TO TURKISH TEXT RETRIEVAL

Yıl 2010, Cilt: 11 Sayı: 2, 163 - 172, 29.11.2010

Ozgur Yilmazel

Öz

We used Lemur Toolkit, an open source toolkit designed for Information Retrieval research, for our automated indexing and retrieval experiments on a TREC-like test collection for Turkish language. We investigate effectiveness of three retrieval models Lemur supports, especially Language modeling approach to Information Retrieval, combined with language specific preprocessing techniques. Our experiments show that language specific preprocessing significantly improves retrieval performance for all retrieval models. Also Language Modeling approach is the best performing retrieval model when language specific preprocessing applied. 

Anahtar Kelimeler

Turkish information retrieval, Lemur toolkit, Language modeling

TÜRKÇE METİN GERİ GETİRIMİNDE DİL MODELLEME YAKLAŞIMI

Öz

Bu çalışmada, bilgi erişimi araştırması için tasarlanmış açık kaynak kodlu bir araç olan Lemur kullanılarak, Türkçe dili için hazırlanmış TREC benzeri bir derlem üzerinde otomatik indeksleme ve geri getirme deneyleri gerçekleştirildi. Bilgi erişiminde dil modelleme yaklaşımı başta olmak üzere Lemur tarafından desteklenen üç geri getirme modeli ve dile özgü ön işleme teknikleri araştırıldı. Deneylerimiz, dile özgü ön işleme tekniklerinin tüm geri getirim modelleri için geri getirme performansını artırdığını gösterdi. Ayrıca Türkçe dili için en iyi performans dil modelleme yaklaşımından elde edildi.

Anahtar Kelimeler

Türkçe bilgi erişimi, Lemur aracı, Dil modelleme

Kaynakça

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