| 一种基于遗传算法的查询关键词形成技术 |
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| 引用本文： | 杜晶,陈群,刘海龙.一种基于遗传算法的查询关键词形成技术[J].计算机与现代化,2013(12):5-8,13. |
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| 作者姓名： | 杜晶 陈群 刘海龙 |
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| 作者单位： | 西北工业大学计算机学院 |
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| 基金项目： | 国家“973”计划基金资助项目(2012CB316203);西北工业大学研究生种子基金资助项目(Z2013125,Z2013126) |
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| 摘 要： | 分析针对离散的关系数据构造有效查询关键词的关键因素，并在此基础上提出一种基于遗传算法的查询关键词形成方法GQFA（ Genetic-based Query Forming Algorithm ）。对于目标属性，在训练集上应用遗传算法，学习得到与目标属性强相关的属性子集，进而形成合适的查询关键词。实验结果表明，该方法形成的查询关键词能够较好地满足应用需求。
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| 关 键 词： | 查询 属性选择 遗传算法 知识获取 信息检索 |
A Query Keywords Forming Technology Based on Genetic Algorithm |
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| DU Jing;CHEN Qun;LIU Hai-long.A Query Keywords Forming Technology Based on Genetic Algorithm[J].Computer and Modernization,2013(12):5-8,13. |
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| Authors: | DU Jing;CHEN Qun;LIU Hai-long |
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| Affiliation: | DU Jing;CHEN Qun;LIU Hai-long;School of Computer Science,Northwestern Polytechnical University; |
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| Abstract: | This paper analyzed the key factors of constructing effective query keywords for discrete relational data and advanced a kind of query keywords forming technology named GQFA （ Genetic-based Query Forming Algorithm ） .It learned the optimal at-tribute subset for the target attribute through applying genetic algorithm to the training data set , and then constructed the effective query keywords .Experimental results showed that the query keywords formed by this method can better meet the requirement . |
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| Keywords: | query keywords attribute selection genetic algorithm knowledge acquisition information retrieval |
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