NDLI: Optimal methods for coordinated enroute web caching for tree networks

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Issue 4, November 2005

Issue 3, August 2005

Model-driven design and deployment of service-enabled web applications

Optimal methods for coordinated enroute web caching for tree networks

Characterizing a national community web

Flash crowd mitigation via adaptive admission control based on application-level observations

Corrigenda

Issue 2, May 2005

Issue 1, February 2005

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ACM Transactions on Internet Technology (TOIT) : Volume 1

Optimal methods for coordinated enroute web caching for tree networks

Content Provider	ACM Digital Library
Author	Li, Keqiu Zheng, Si Qing Shen, Hong Chin, Francis Y. L.
Copyright Year	2005
Abstract	Web caching is an important technology for improving the scalability of Web services. One of the key problems in coordinated enroute Web caching is to compute the locations for storing copies of an object among the enroute caches so that some specified objectives are achieved. In this article, we address this problem for tree networks, and formulate it as a maximization problem. We consider this problem for both unconstrained and constrained cases. The constrained case includes constraints on the cost gain per node and on the number of object copies to be placed. We present dynamic programming-based solutions to this problem for different cases and theoretically show that the solutions are either optimal or convergent to optimal solutions. We derive efficient algorithms that produce these solutions. Based on our mathematical model, we also present a solution to coordinated enroute Web caching for autonomous systems as a natural extension of the solution for tree networks. We implement our algorithms and evaluate our model on different performance metrics through extensive simulation experiments. The implementation results show that our methods outperform the existing algorithms of either coordinated enroute Web caching for linear topology or object placement (replacement) at individual nodes only.
Starting Page	480
Ending Page	507
Page Count	28
File Format	PDF
ISSN	15335399
e-ISSN	15576051
DOI	10.1145/1084772.1084774
Volume Number	5
Issue Number	3
Journal	ACM Transactions on Internet Technology (TOIT)
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2005-08-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Web caching Autonomous system (AS) Dynamic programming Object placement (replacement) Performance evaluation Tree network
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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Optimal methods for coordinated enroute web caching for tree networks

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