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Applying Multiple Characteristics and Techniques in the NICT Information Retrieval System at NTCIR-6
2007
NTCIR Conference on Evaluation of Information Access Technologies
Our information retrieval system takes advantage of numerous characteristics of information and uses numerous sophisticated techniques. It uses Robertson's 2-Poisson model and Rocchio's formula, both of which are known to be effective. Characteristics of newspapers such as locational information are used. We present our application of Fujita's method, where longer terms are used in retrieval by the system but de-emphasized relative to the emphasis on the shortest terms. This allows us to use
dblp:conf/ntcir/MurataOMI07
fatcat:i3mx247wrnfwhkbbqa3vcfkkvy