Report on CLIR Task for the NTCIR-5 Evaluation Campaign

Samir Abdou, Jacques Savoy
2005 NTCIR Conference on Evaluation of Information Access Technologies  
This paper describes our second participation in an evaluation campaign involving the Chinese, Japanese, Korean and English languages (NTCIR-5). Our participation is motivated by four objectives: 1) study the retrieval performances of various IR models for these languages; 2) compare the relative retrieval effectiveness of bigram and automatic wordsegmenting approaches for Chinese and Japanese languages; 3) propose a new blind-query expansion hopefully capable of improving mean average
more » ... ; and 4) evaluate the relative performance of the various merging strategies used to combine separate result lists extracted from a corpus written in English, Chinese, Japanese or Korean.
dblp:conf/ntcir/AbdouS05 fatcat:deeskicgkrcpbl7gbnsa7il5om