Effect of dependency relationships and ordered co-occurrence of words on Japanese information retrival (poster session)
説明
We propose two Japanese information retrieval methods that enhance retrieval effectiveness using relationships between words. One is a method using dependency relationships between words in a sentence, and another is a method using the ordered co-occurrence information of words in a sentence as an approximation to the dependency relationships between them. Through retrieval experiments using the Japanese test collection for information retrieval systems NTCIR-1, we showed our two methods are superior to the TF-IDF method in retrieval effectiveness and the difference between our two methods is small. These results are independent of the document set and of the search topic set.
収録刊行物
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- Proceedings of the fifth international workshop on on Information retrieval with Asian languages
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Proceedings of the fifth international workshop on on Information retrieval with Asian languages 199-200, 2000-11-01
ACM