IIIT Hyderabad at CLEF 2007 - Adhoc Indian Language CLIR task
Prasad Pingali, Vasudeva Varma · CLEF (Working Notes) · 2007
This paper presents the experiments of Language Technologies Research Centre (LTRC) 1 as part of their participation in CLEF 2 2007 Indian language to English ad-hoc cross language document retrieval task. In this paper we discuss our Hindi and Telugu to English CLIR system and the experiments using CLEF 2007 dataset. We used a variant of TFIDF algorithm in combination with a bilingual lexicon for query translation. We also explored the role of a document summary in fielded queries and two dierent boolean formulations of query translations. We find that a hybrid boolean formulation using a combination of boolean AND and boolean OR operators improves ranking of documents. We also find that simple disjunctive combination of translated query