NDLI: On the intrinsic locality properties of Web reference streams

Content Provider	IEEE Xplore Digital Library
Author	Fonseca, R. Almeida, V. Crovella, M. Abrahao, B.
Copyright Year	2003
Description	Author affiliation: Dept. of Comput. Sci., Fed. Univ. of Minas Gerais, Brazil (Fonseca, R.; Almeida, V.)
Abstract	There has been considerable work done in the study of Web reference streams: sequences of requests for Web objects. In particular, many studies have looked at the locality properties of such streams, because of the impact of locality on the design and performance of caching and prefetching systems. However, a general framework for understanding why reference streams exhibit given locality properties has not yet emerged. In this paper we take a first step in this direction. We propose a framework for describing how reference streams are transformed as they pass through the Internet, based on three operations: aggregation, disaggregation, and filtering. We also propose metrics to capture the temporal locality of reference streams in this framework. We argue that these metrics (marginal entropy and interreference coefficient of variation) are more natural and more useful than previously proposed metrics for temporal locality; and we show that these metrics provide insight into the nature of reference stream transformations in the Web.
Sponsorship	IEEE Comput. Soc. IEEE Commun. Soc. Nat. Sci. Foundation
Starting Page	448
Ending Page	458
File Size	385086
Page Count	11
File Format	PDF
ISBN	0780377524
ISSN	0743166X
DOI	10.1109/INFCOM.2003.1208696
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-03-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Information filtering Information filters Computer science Prefetching Internet Entropy Protocols Cache storage Merging Character generation
Content Type	Text
Resource Type	Article
Subject	Computer Science Electrical and Electronic Engineering

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