NTCIR Experiments Using the OASIS System.

This paper reports the results of NTCIR experiments on Japanese and English text retrieval carried out with the OASIS System. The OASIS system is designed to support multiple languages. The main aim of these experiments is to test particular methods to support Japanese. Results showed that some improvements in the search engine need to be considered. More experiments are needed to test the effect of automatically query expansion using top relevant ranking documents.