Information Retrieval Based on Stochastic Models
نویسندگان
چکیده
Our method for information retrieval uses Robertson's 2-poisson model which is one type of probablistic approach. This method achieved a comparatively high score in TREC. In the NTCIR contest, we designed systems that could be used for adhoc retrieval and cross-lingual task. This paper explains the systems. key words 2-poisson model, adhoc retrieval, cross lingual retrieval G °±ê+HKsÞð ·Ù À U õã 1ù mE¿ d 3⁄4îM õ ̄ý' õ S '¿Öõ m 651-2401 ¡ =ý{»Çe»Ç 588-2 TEL:078-969-2181 FAX:078-969-2189 http://www-karc.crl.go.jp/ips/murata fmurata,uchimoto,romi,[email protected] .Ü OLOL.sÞð .èê'/Ç%¿+ G °±ê.K$. Robertson . 2-= SB'KRÖ & K .èê/ Okapi( &@' )'$Ð L TREC + & L¿H í Ro & B.' K NACSIS. S& ('/ .èê+Ç% &@R $ aõ & %s'/ . &@.!gR * O ) 2-poisson B'K Ðgð ;3⁄4 ð
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