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Effect of dependency relationships and ordered co-occurrence of words on Japanese information retrival (poster session)

机译:依存关系和单词的有序共现对日语信息检索(海报会话)的影响

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摘要

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.

机译:

我们提出了两种日语信息检索方法,它们可以利用单词之间的关系来提高检索效率。一种是使用句子中的单词之间的依赖关系的方法,另一种是使用句子中的单词的有序共现信息作为它们之间的依赖关系的近似的方法。通过使用日语测试集进行信息检索系统NTCIR-1的检索实验,我们证明了我们的两种方法在检索效率方面优于TF-IDF方法,并且两者之间的差异很小。这些结果与文档集和搜索主题集无关。

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