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Position: Home > Articles > Study on the Question-Answer System of Agricultural Practical Technology Based on Improved VSM Journal of Anhui Agricultural Sciences 2009,37 (28) 3948-3950

基于改进VSM的农业实用技术自动问答系统研究

作  者:
罗长寿;张峻峰;孙素芬;魏清凤
单  位:
北京农林科学院农业科技信息研究所
关键词:
向量空间模型;农业;自动问答系统
摘  要:
针对农业实用技术需求及传统向量空间模型在农业特定领域应用中存在的问题,从特征词规范化、文档特征词专业性权值修正、查询特征词分布权值修正、系统效率优化4方面对其改进,并进行农业技术自动问答系统开发。结果表明,改进后的计算模型提高了自动问答的准确率和召回率,且系统检索性能也得到明显改善。
译  名:
Study on the Question-Answer System of Agricultural Practical Technology Based on Improved VSM
作  者:
LUO Chang-shou et al(Agricultural Science Information Institute,Beijing Academy of Agriculture and Forestry science,Beijing, 100097)
关键词:
VSM;;Agriculture;;Question-Answer System
摘  要:
According to the existed problems of agricultural practical technology requirement and traditional VSM when they applied to the agricultural Field,the paper solved the problems by characteristic term standardization,the weight of specialized word revision,the inquiry of characteristic words distribution revision,and system efficiency optimizer,and developed a Question-Answer system based on the improved VSM.The results showed that the improved computer model raised theaccuracy,recall rate of and the system retrieval performance.

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