Considering a Semantic Prefetching Scheme for Cache Management in Location-Based Services

  • Sang-Won Kang
  • SeokJin Im
  • Jongwan Kim
  • SeongHoon Lee
  • Chong-Sun Hwang
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4251)


Dissemination techniques of data have been rapidly developed for wireless communication environment. Since the advent of ubiquitous computing, semantic-based researches have been sped-up between service provider and user. We have tried to maintain user information with a semantic cache scheme. In this paper, we propose a semantic prefetching (SP) strategy for efficient data management, considering semantic information of user. We concentrate on data prefetching methods to send mass data to high bandwidth channels. In the SP, the prepared semantic descriptions are prefetched from server to client according as the client locates in anywhere. The semantic descriptions are dynamically composed of user patterns, such as the request patterns of user, the size of querying area, the direction of user and the average speed of user. We also propose a new cache management scheme, called to semantic least recently used (S-LRU). The evaluation result shows that the system performance is significantly improved.


Range Query Cache Size Semantic Description Segment Size Query Pattern 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Seydim, A.Y., Dunham, M.H., Kumar, V.: Location Dependent Query Processing. In: Proc. of Second ACM Int. Workshop on Data Engineering for Wireless and Mobile Access, pp. 47–53 (2001)Google Scholar
  2. 2.
    Dar, S., Franklin, M.J., Jonsson, B.T., Srivatava, D., Tan, M.: Semantic data caching and replacement. In: Proc. of the VLDB Conf., pp. 330–341 (1996)Google Scholar
  3. 3.
    Liu, G.: Exploitation of location-dependent caching and prefetching techniques for supporting mobile computing and communications. In: Proc. of the Sixth Int. Conf. on Wireless Communications, pp. 11–13 (1994)Google Scholar
  4. 4.
    Ren, Q., Dunham, M.H.: Using semantic caching to manage location dependent data in mobile computing. In: Proc. of MobiCom 2000, pp. 210–221 (2000)Google Scholar
  5. 5.
    Li, L., Birgitta, K.R., Pissinou, N., Makki, K.: Strategies for Semantic Caching. In: Mayr, H.C., Lazanský, J., Quirchmayr, G., Vogel, P. (eds.) DEXA 2001. LNCS, vol. 2113, pp. 284–298. Springer, Heidelberg (2001)CrossRefGoogle Scholar
  6. 6.
    Barbara, D.: Sleepers and Workaholics: Caching Strategies in Mobile Environments. In: ACM SIGMOD Int. Conf. on Management of Data, pp. 1–12 (1994)Google Scholar
  7. 7.
    lee, C.K.K., Leong, H.V., Si, A.: Semantic Query Caching in a Mobile Environment. In: MC2R vol. 3(2) (April 1999)Google Scholar
  8. 8.
    Ren, Q., Dunham, M.H., Kumar, V.: Semantic Caching and Query Processing. IEEE Transactions on Knowledge and Data Engineering 15(1), 192–210 (2003)CrossRefGoogle Scholar
  9. 9.
    Roussopoulos, N.: An Incremental Access Method for ViewCache: Concept, Algorithms, and Cost Analysis. ACM Transactions on Database Systems 16(3), 535–563 (1991)CrossRefGoogle Scholar
  10. 10.
    Oren, N.: A Survey of prefetching techniques, TR-Wits-CS-2000-10 (July 2000)Google Scholar
  11. 11.
    Xu, J., Tang, X., Lee, D.L.: Performance Analysis of Location-Dependent Cache Invalidation Schemes for Mobile Environments. IEEE Transactions on Knowledge and Data Engineering 15(2), 474–488 (2003)CrossRefGoogle Scholar
  12. 12.
    Lin, D., Jensen, C.S., Ooi, B.C., Saltenis, S.: Efficient indexing of the historical, present, and future positions of moving objects. In: Mobile Data Management, pp. 59–66 (2005)Google Scholar
  13. 13.
    Bellocci, V., Genovese, S., Inuaggiato, D., Tucci, M.: Mobile Location-Aware Services: 2002 Market Perspective. Ericsson, Divison Service Architecture and Interractive Solutions (2002)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Sang-Won Kang
    • 1
  • SeokJin Im
    • 1
  • Jongwan Kim
    • 1
  • SeongHoon Lee
    • 2
  • Chong-Sun Hwang
    • 1
  1. 1.Department of Computer Science and EngineeringKorea UniversitySeoulKorea
  2. 2.Division of Information and CommunicationCheonan UniversityCheonanKorea

Personalised recommendations