%A YANG Rui-jun, ZHU Ke, CHENG Yan %T Database-level Web Cache Replacement Strategy Based on SVM Access Prediction Mechanism %0 Journal Article %D 2019 %J Computer Science %R 10.11896/j.issn.1002-137X.2019.06.030 %P 201-205 %V 46 %N 6 %U {https://www.jsjkx.com/CN/abstract/article_18232.shtml} %8 %X Web cache is used to solve the problems of network access delay and network congestion,and cache replacement strategy directly affects the hit rate of cache.For this reason,this paper proposed a database-level Web cache replacement strategy based on SVM access prediction mechanism.Firstly,according to previous access logs of users,a feature data set is constructed on the basis of extracting multiple features through a pre-processing operation.Then,a Support Vector Machine (SVM) classifier is trained to predict whether a cached object is likely to be accessed again in the future,and the cached objects that are classified as not being accessed are deleted to free memory.Simulation results show that,compared with the traditional LRU,LFU and GDSF schemes,this strategy has higher request hit rate and byte hit rate.