Connection caching

Edith Cohen*, Haim Kaplan, Uri Zwick

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

10 Scopus citations


A theoretical model for connection caching was proposed to study this kind of connection management. While the ordinary off-line caching problem is easily solved in polynomial time, the off-line connection caching problem is NP-complete, and in fact also APX-complete, that is, it is even hard to approximate. This result was complemented by showing that a distributed version of Belady's algorithm, which is optimal for a single cache, is a 2-approximation algorithm for off-line connection-caching. Examples that show that the analysis of this algorithm is tight are provided.

Original languageEnglish
Pages (from-to)612-621
Number of pages10
JournalConference Proceedings of the Annual ACM Symposium on Theory of Computing
StatePublished - 1999
Externally publishedYes
EventProceedings of the 1999 31st Annual ACM Symposium on Theory of Computing - FCRC '99 - Atlanta, GA, USA
Duration: 1 May 19994 May 1999


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