Movatterモバイル変換

[0]ホーム
URL:

Skip to main content

Advertisement

Springer Nature Link
Log in

Modeling and Storing Context-Aware Preferences

  • Conference paper

Abstract

Today, the overwhelming volume of information that is available to an increasingly wider spectrum of users creates the need for personalization. In this paper, we consider a database system that supports context-aware preference queries, that is, preference queries whose result depends on the context at the time of their submission. We use data cubes to store the associations between context-dependent preferences and database relations and OLAP techniques for processing context-aware queries, thus allowing the manipulation of the captured context data at different levels of abstractions. To improve query performance, we use an auxiliary data structure, called context tree, which indexes the results of previously computed preference-aware queries based on their associated context. We show how these cached results can be used to process both exact and approximate context-aware preference queries.

This is a preview of subscription content,log in via an institution to check access.

Access this chapter

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Similar content being viewed by others

References

  1. Koutrika, G., Ioannidis, Y.: Personalization of Queries in Database Systems. In: Proc. of ICDE (2004)

    Google Scholar 

  2. Dey, A.K.: Understanding and Using Context. Personal and Ubiquitous Computing 5 (2001)

    Google Scholar 

  3. Chen, G., Kotz, D.: A Survey of Context-Aware Mobile Computing Research. Dartmouth Computer Science Technical Report TR2000-381 (2000)

    Google Scholar 

  4. Stefanidis, K., Pitoura, E., Vassiliadis, P.: Modeling and Storing Context-Aware Preferences (extended version). University of Ioannina, Computer Science Departement, TR 2006-06 (2006)

    Google Scholar 

  5. Harvel, L., Liu, L., Abowd, G.D., Lim, Y.-X., Scheibe, C., Chathamr, C.: Flexible and Effective Manipulation of Sensed Contex. In: Proc. of the 2nd Intl. Conf. on Pervasive Computing (2004)

    Google Scholar 

  6. Salber, D., Dey, A.K., Abowd, G.D.: The Context Toolkit: Aiding the Development of Context-Enabled Applications. In: CHI Conference on Human Factors in Computing Systems (1999)

    Google Scholar 

  7. Chen, G., Li, M., Kotz, D.: Design and implementation of a large-scale context fusion network. International Conference on Mobile and Ubiquitous Systems: Networking and Services (2004)

    Google Scholar 

  8. Stefanidis, K., Pitoura, E., Vassiliadis, P.: On Supporting Context-Aware Preferences in Relational Database Systems. In: International Workshop on Managing Context Information in Mobile and Pervasive Environments (2005) (extended version to appear in JPCC)

    Google Scholar 

  9. Feng, L., Apers, P.M.G., Jonker, W.: Towards Context-Aware Data Management for Ambient Intelligence. In: Galindo, F., Takizawa, M., Traunmüller, R. (eds.) DEXA 2004. LNCS, vol. 3180, pp. 422–431. Springer, Heidelberg (2004)

    Chapter  Google Scholar 

  10. Roussos, Y., Stavrakas, Y., Pavlaki, V.: Towards a Context-Aware Relational Model. In: The proceedings of the International Workshop on Context Representation and Reasoning (CRR 2005) (2005)

    Google Scholar 

  11. Stavrakas, Y., Gergatsoulis, M.: Multidimensional Semistructured Data: Representing Context-Dependent Information on the Web. In: Pidduck, A.B., Mylopoulos, J., Woo, C.C., Ozsu, M.T. (eds.) CAiSE 2002. LNCS, vol. 2348, p. 183. Springer, Heidelberg (2002)

    Chapter  Google Scholar 

  12. Doulkeridis, C., Vazirgiannis, M.: Querying and Updating a Context-Aware Service Directory in Mobile Environments. Web Intelligence, 562–565 (2004)

    Google Scholar 

  13. Agrawal, R., Wimmers, E.L.: A Framework for Expressing and Combining Preferences. In: Proc. of SIGMOD (2000)

    Google Scholar 

  14. Chomicki, J.: Preference Formulas in Relational Queries. TODS 28 (2003)

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Computer Science, University of Ioannina, Greece

    Kostas Stefanidis, Evaggelia Pitoura & Panos Vassiliadis

Authors
  1. Kostas Stefanidis

    You can also search for this author inPubMed Google Scholar

  2. Evaggelia Pitoura

    You can also search for this author inPubMed Google Scholar

  3. Panos Vassiliadis

    You can also search for this author inPubMed Google Scholar

Editor information

Editors and Affiliations

  1. Data Engineering Research Lab. Department of Informatics, Aristotle University, 54124, Thessaloniki, Greece

    Yannis Manolopoulos

  2. Faculty of Mathematics and Physics, Charles University, Prague

    Jaroslav Pokorný

  3. Institute for the Management of Information Systems (R.C. “Athena”), Athens, Hellas,  

    Timos K. Sellis

Rights and permissions

Copyright information

© 2006 Springer-Verlag Berlin Heidelberg

About this paper

Cite this paper

Stefanidis, K., Pitoura, E., Vassiliadis, P. (2006). Modeling and Storing Context-Aware Preferences. In: Manolopoulos, Y., Pokorný, J., Sellis, T.K. (eds) Advances in Databases and Information Systems. ADBIS 2006. Lecture Notes in Computer Science, vol 4152. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11827252_12

Download citation

Publish with us

[8]ページ先頭
©2009-2025 Movatter.jp