A passage retrieval system for multilingual question answering

被引：0

作者：

Soriano, JMG ^{[1
]}

Gómez, MM ^{[1
]}

Arnal, ES ^{[1
]}

Rosso, P ^{[1
]}

机构：

[1] Univ Politecn Valencia, Dept Sistemas Informat & Computac, E-46071 Valencia, Spain

来源：

TEXT, SPEECH AND DIALOGUE, PROCEEDINGS | 2005年 / 3658卷

关键词：

D O I：

暂无

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

In this paper we present a new method to improve the coverage of Passage Retrieval (PR) systems when these systems are employed for the Question Answering (QA) tasks. The ranking of passages obtained by the PR system is rearranged to emphasize those passages with more probability to contain the answer. The new ranking is based on finding the n-gram structures of the question that are presented in the passage, and the weight of the passages increases when they contain longer n-grams structures of the question. The results we present show that the application of this method improves notably the coverage of the classical PR system based on the Space Vectorial Model.

引用

页码：443 / 450

页数：8

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