摘要
Web结构优化技术在降低访问延迟、提高访问效率上具有重要作用.由此提出根据用户访问路径建立Web层次模型(WHM),利用页面相似度合并同层相似页面,从而构建Web概念化模型(WCM).实验及分析表明,WCM模型能够在适度聚类的情况下清晰地展现Web结构.此外,将WCM模型应用于预取系统,该模型所采用的聚类算法在预取效率方面明显优于传统方法,具有可行性和高效性.
Web structure optimization technique plays a significant role in reducing latency and improving the access efficiency.This paper presents the Web Hierarchy Model(WHM)which is constructed based on user access path.Then the Web Conceptual Mode(WCM)is obtained by clustering pages in the same hierarchy according to the pages' similarity.According to the experiments and analyzes,WCM can show the structure of Web clearly under moderately clustering.Furthermore the model is implemented in web prefetching system,in the aspect of prefetching efficiency,the clustering algorithm used in this model is superior to the traditional method and it is feasible and efficient.
出处
《微电子学与计算机》
CSCD
北大核心
2015年第1期156-160,共5页
Microelectronics & Computer
基金
国家自然科学基金项目(U1304603)
河南省教育厅科学技术研究重点项目(13A520651)
