摘要
为提高关系数据库上的关键词查询系统的准确性和查询效率,采用生成倒排索引文件和查询词的相关结果集相结合的方式建立关键词检索系统,并通过改善权重表以及相关记录的排名进行查询优化.提出的查询系统根据用户输入的关键词,可以动态生成用户表单,以此从不同用户表中返回相关记录来处理关键词.研究结果表明:该系统可以提高用户查询的准确性和查询效率,并对关系数据库中关键词查询的研究与应用具有一定的参考价值和借鉴意义.
This paper introduced a system for processing keywords-based queries that improves the efficiency and effectiveness. The system is created by generating an inverted index files and relevant answer sets. The system will then return the relevant records from different tables that appear to be clos to what the user is looking for based on the list of keywords that user provided. The results of the experiment show that the system can improve the efficiency and effectiveness of user queries. The system has reference value and guiding significance in the aspect of the research and application ofkeyword query.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2014年第7期960-964,共5页
Journal of Liaoning Technical University (Natural Science)
基金
辽宁省科学技术基金资助项目(2013020028)
关键词
关系数据库
关键词查询
排序
关键词权重
信息检索
relationalt database
keyword query
ranking
keyword weight
information retrieval
