Skip to main content

Web Search Result Caching and Prefetching

  • Reference work entry

Synonyms

Search engine caching and prefetching; Search engine query result caching; Paging in Web search engines

Definition

Caching is a well-known concept in systems with multiple tiers of storage. For simplicity, consider a system storing N objects in relatively slow memory, that also has a smaller but faster memory buffer of capacity k which can store copies of k of the N objects (N >> k). This fast memory buffer is called the cache. The storage system is presented with a continuous stream of queries, each requesting one of the N objects. If the object is stored in the cache, a cache hit occurs and the object is quickly retrieved. Otherwise, a cache miss occurs, and the object is retrieved from the slower memory. At this point, the storage system can opt to save the newly retrieved object in the cache. When the cache is full (i.e., already contains k objects), this entails evicting some currently cached object. Such decisions are handled by a replacement policy, whose goal is to...

This is a preview of subscription content, access via your institution.

Buying options

Chapter
USD   29.95
Price excludes VAT (USA)
  • DOI: 10.1007/978-0-387-39940-9_464
  • Chapter length: 6 pages
  • Instant PDF download
  • Readable on all devices
  • Own it forever
  • Exclusive offer for individuals only
  • Tax calculation will be finalised during checkout
eBook
USD   2,500.00
Price excludes VAT (USA)
  • ISBN: 978-0-387-39940-9
  • Instant PDF download
  • Readable on all devices
  • Own it forever
  • Exclusive offer for individuals only
  • Tax calculation will be finalised during checkout

Recommended Reading

  1. Baeza-Yates R., Gionis A., Junqueira F., Murdock V., Plachouras V., and Silvestri F. The impact of caching on search engines. In Proc. 33rd Annual Int. ACM SIGIR Conf. on Research and Development in Information Retrieval, 2007, pp. 183–190.

    Google Scholar 

  2. Baeza-Yates R., Junqueira F., Plachouras V., and Witschel H.F. Admission policies for caches of search engine results. In Proc. 14th Int. Symp. String Processing and Information Retrieval, 2007, pp. 74–85.

    Google Scholar 

  3. Belady L.A. A study of replacement algorithms for a virtual-storage computer. IBM Syst. J., 5(2):78–101, 1966.

    CrossRef  Google Scholar 

  4. Fagni T., Perego R., Silvestri F., and Orlando S. Boosting the performance of web search engines: caching and prefetching query results by exploiting historical usage data. ACM Trans. Inf. Syst., 24(1):51–78, 2006.

    CrossRef  Google Scholar 

  5. Karedla R., Love J.S., and Wherry B.G. Caching strategies to improve disk system performance. Computer, 27(3):38–46, 1994.

    CrossRef  Google Scholar 

  6. Lempel R. and Moran S. Optimizing result prefetching in web search engines with segmented indices. In Proc. 28th Int. Conf. on Very Large Data Bases, 2002, pp. 370–381.

    Google Scholar 

  7. Lempel R. and Moran S. Predictive caching and prefetching of query results in search engines. In Proc. 12th Int. World Wide Web Conference, 2003, pp. 19–28.

    Google Scholar 

  8. Lempel R. and Moran S. Competitive caching of query results in search engines. Theor. Comput. Sci., 324(2):253–271, 2004.

    MATH  MathSciNet  CrossRef  Google Scholar 

  9. Lempel R. and Moran S. Optimizing result prefetching in web search engines with segmented indices. ACM Trans. Internet Tech., 4:31–59, 2004.

    CrossRef  Google Scholar 

  10. Long X. and Suel T. Three-level caching for efficient query processing in large web search engines. In Proc. 14th Int. World Wide Web Conference, 2005, pp. 257–266.

    Google Scholar 

  11. Markatos E.P. On caching search engine query results. Comput. Commun., 24(2):137–143, 2001.

    CrossRef  Google Scholar 

  12. Saraiva P., Moura E., Ziviani N., Meira W., Fonseca R., and Ribeiro-Neto B. Rank-preserving two-level caching for scalable search engines. In Proc. 24th Annual Int. ACM SIGIR Conf. on Research and Development in Information Retrieval, 2001, pp. 51–58.

    Google Scholar 

  13. Silverstein C., Henzinger M., Marais H., and Moricz M. Analysis of a very large altavista query log. Technical Report 1998-014, Compaq Systems Research Center, October 1998.

    Google Scholar 

  14. Silvestri F., Fagni T., Orlando S., Palmerini P., and Perego R. A hybrid strategy for caching web search engine results. In Proc. 12th Int. World Wide Web Conference, 2003 (Poster).

    Google Scholar 

  15. Sleator D.D. and Tarjan R.E. Amortized efficiency of list update and paging rules. Commun. ACM, 28:202–208, 1985.

    MathSciNet  CrossRef  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and Permissions

Copyright information

© 2009 Springer Science+Business Media, LLC

About this entry

Cite this entry

Lempel, R., Silvestri, F. (2009). Web Search Result Caching and Prefetching. In: LIU, L., ÖZSU, M.T. (eds) Encyclopedia of Database Systems. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-39940-9_464

Download citation