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  • 标题:Relative aggregation operator in database fuzzy querying
  • 本地全文:下载
  • 作者:Cornelia TUDORIE ; Severin BUMBARU ; Luminita DUMITRIU
  • 期刊名称:Annals of “Dunarea de Jos”
  • 印刷版ISSN:1221-454X
  • 出版年度:2005
  • 卷号:2005
  • 出版社:“Dunarea de Jos” University of Galati
  • 摘要:Fuzzy selection criteria querying relational databases include vague terms; they usually refer linguistic values form the attribute linguistic domains, defined as fuzzy sets. Generally, when a vague query is processed, the definitions of vague terms must already exist in a knowledge base. But there are also cases when vague terms must be dynamically defined, when a particular operation is used to aggregate simple criteria in a complex selection. The paper presents a new aggregation operator and the corresponding algorithm to evaluate the fuzzy query.
  • 关键词:Artificial Intelligence, Database, Fuzzy Logic, Fuzzy Queries
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