SINAI at CLEF 2006 Ad Hoc Robust Multilingual Track: Query Expansion Using the Google Search Engine

This year, we have participated on Ad-Hoc Robust Multilingual track with the aim to evaluate two issues of CLIR systems. Firstly, this paper describes the method followed for query expansion in a multilingual environment by using web search results provided by the Google engine in order to increment retrieval robustness. Unfortunately, the results obtained are disappointing. The second issue reported is relative to the robustness of several usual merging algorithms. We have found that 2-step RSV merging algorithms perform better than others algorithms when geometric precision is applied.

• Type: Conference
• Year: 2006
• Where: CLEF
• Authors: Fernando Martínez Santiago, Arturo Montejo Ráez, Miguel Angel García Cumbreras, Luis Alfonso Ureña López
• Keywords: CLEF 2006, Information Management, Merging Algorithms, RSV Merging Algorithms, Usual Merging Algorithms