A semantic-driven cache management approach for mobile applications

Authors:
Guiyi Wei;Jun Yu;Hanxiao Shi;Yun Ling
Affiliations:
Zhejiang Gongshang University, Hangzhou, P.R. China;Zhejiang Gongshang University, Hangzhou, P.R. China;Zhejiang Gongshang University, Hangzhou, P.R. China;Zhejiang Gongshang University, Hangzhou, P.R. China
Venue:
ICCS'06 Proceedings of the 6th international conference on Computational Science - Volume Part III
Year:
2006

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Abstract

With the development of wireless communication technology, mobile business become more and more popular. Using GPRS or WAP protocals, the wireless devices can connect to the Web servers, retrieve information from the online databases and run special application programs. Because of the limitation of the wireless communication and mobile computing enviroment, it is difficult to improve the execution efficiency for the program that located in mobile devices. To solve the problem, introducing the cache mechanism is the major and effective method. But the traditional cache model can not achieve an acceptable cache hit ratio. The semantic caching is particularlly attractive in a mobile business environment, due to its content-based reasoning ability and semantic locality. In semantic-driven cache model, only the required data is transmitted to wireless device. In this paper we propose an application-oriented semantic cache model. It establishes an semantic associated rule-base according to the knowledge of application domains, makes use of the semantic locality for data prefetching, and adopts a Two-level LRU algorithm for cache replacement. Several experiments demonstrate that the semantic-driven cache model can achieve higher hit ratio than traditional models.