Retrieval performance includes evaluation of recall ratio, precision ratio, speed of retrieval, cost and convemence etc.
检索性能主要包括查全率、查准率、检索速度、费用与方便性等指标。
In information retrieval, recall and precision are regarded as two inter-constraint measures.
在信息检索领域，查全率与查准率是一对相互制约的指标。
SIR can significantly enhance the recall and precision of the information retrieval by the semantic inference. Finally, the practicability of the SIR model is analyzed.
最后分析了SIR的可用性，证明了SIR可极大地提高语义网上信息检索的查全率和查准率。
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