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Title:
基于图的查询日志实体别名抽取方法
Alternative Title: Graph Based Alias Extraction Using Query Log
Author: 石贝 ; 孙乐 ; 韩先培
Keyword: 查询日志 ; 别名抽取 ; query log ; alias extraction
Source: 中文信息学报
Issued Date: 2013
Volume: 27, Issue:5, Pages:149-155
Indexed Type: CSCD
Department: 中国科学院软件研究所,北京,100190
Abstract: 实体的别名是指同一个实体的不同名称.传统的别名抽取方法存在训练语料构建困难和时效性差这两个问题.针对这两个问题,该文提出了一种基于图的查询日志实体别名抽取方法.该方法利用查询日志的上下文信息和查询链接信息,构建了二层图(包括别名候选图层和查询链接图层),并通过随机游走算法对图中的候选别名进行排序.实验结果表明:1)该方法准确率达到了71.8%,证明该方法可行有效.2)使用查询链接信息进行别名抽取优于使用上下文信息进行别名抽取.这两种信息的结合能获得更好的别名抽取效果.
English Abstract: The alias of entity means the different names which refer to the same entity. Traditional alias extraction methods often have two problems: 1) the difficulty of constructing training corpus; 2) the lack of timeliness. To resolve the two problems, this paper proposes a graph based alias extraction method using query log. This method uses context information and query-link information, constructs a two-layer graph (including the candidate alias layer and the query-link layer) and sorts the alias using random walk algorithm. The experimental results show that: 1) our method achieves the accuracy of 71.8%, which proves our method is effective. 2) Using query-link information outperforms the method which uses context information and the combination of this two type' s information improves the performance.
Language: 中文
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Content Type: 期刊论文
URI: http://ir.iscas.ac.cn/handle/311060/16806
Appears in Collections:软件所图书馆_期刊论文

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Recommended Citation:
石贝,孙乐,韩先培. 基于图的查询日志实体别名抽取方法[J]. 中文信息学报,2013-01-01,27(5):149-155.
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