To translate or not to translate?

Chia-Jung Lee, Chin-Hui Chen, Shao-Hang Kao, Pu-Jen Cheng
2010 Proceeding of the 33rd international ACM SIGIR conference on Research and development in information retrieval - SIGIR '10  
Query translation is an important task in cross-language information retrieval (CLIR) aiming to translate queries into languages used in documents. Previous work focused mainly on generating translation equivalences of query terms. The purpose of this paper is to investigate the necessity of translating query terms, which might differ from one term to another. Some untranslated terms cause irreparable performance drop while others do not. We propose an approach to estimate the translation
more » ... ility of a query term, which helps decide if it should be translated or not. The approach learns regression and classification models based on a rich set of linguistic and statistical properties of the term. Experiments on the NTCIR-4 and NTCIR-5 English-Chinese CLIR tasks demonstrate that the proposed approach can significantly improve CLIR performance. An in-depth analysis is also provided for discussing the impact of out-of-vocabulary and wrongly-translated query terms on CLIR performance.
doi:10.1145/1835449.1835558 dblp:conf/sigir/LeeCKC10 fatcat:f4mcswzperaepkl6fir4hwihhy