Relationship Between Precision and Recall for Web Prefetching Performance Indexes

The potential relation between precision and recall which are two important factors in Web prefetching performance evaluation is researched. Theoretical derivation is conducted and some facts are that the relation between them can be in sequence and vice verse. The log of practical Web server and agent one is used to make performance test. Simulation experimental results show the recall depends on precision, and the increasing precision can be helpful to the improvement of recall.