摘要
With an analysis of the main document databases,this paper discusses the combined retrieval models used under the multi restrictive conditions by use of the conditional probability theory.The paper provides system programmers with combined probability theory and its application examples.It’s useful for users to increase recall ratio,pertinency ratio and search rate.
With an analysis of the main document databases,this paper discusses the combined retrieval models used under the multi restrictive conditions by use of the conditional probability theory.The paper provides system programmers with combined probability theory and its application examples.It's useful for users to increase recall ratio,pertinency ratio and search rate.
出处
《情报理论与实践》
CSSCI
北大核心
2001年第6期457-459,419,共4页
Information Studies:Theory & Application
基金
江苏省社会发展科技计划项目研究成果之一项目代号:BS2 0 0 0 10 7
