NDLI: Coordinated enroute multimedia object caching in transcoding proxies for tree networks

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ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP) : Volume 10

ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP) : Volume 9

ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP) : Volume 8

ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP) : Volume 7

ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP) : Volume 7S

ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP) : Volume 6

ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP) : Volume 5

ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP) : Volume 4

ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP) : Volume 3

ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP) : Volume 2

ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP) : Volume 1

Issue 4, November 2005

Issue 3, August 2005

IMCE: Integrated media creation environment

Flexible cross-domain event delivery for quality-managed multimedia applications

Temporal event clustering for digital photo collections

Coordinated enroute multimedia object caching in transcoding proxies for tree networks

Issue 2, May 2005

Issue 1, February 2005

Coordinated enroute multimedia object caching in transcoding proxies for tree networks

Content Provider	ACM Digital Library
Author	Li, Keqiu Shen, Hong
Copyright Year	2005
Abstract	Transcoding is a promising technology that allows systems to effect a quality-versus-size tradeoff on multimedia objects. As audio and video applications have proliferated on the Internet, caching in transcoding proxies has become an important technique for improving network performance, especially in mobile networks. This article addresses the problem of coordinated enroute multimedia object caching in transcoding proxies for tree networks. We formulate this problem as an optimization problem based on our proposed model, in which multimedia object caching decisions are made on all enroute caches along the routing path by integrating both object placement and replacement policies and cache status information along the routing path of a request is used to determine the optimal locations for caching multiple versions of the same multimedia object. We propose an optimal solution using dynamic programming to compute the optimal locations. We also extend this solution to solve the same problem for several constrained cases, including constraints on the cost gain per node and on the number of versions to be placed. Our model is evaluated on different performance metrics through extensive simulation experiments. The implementation results show that our model significantly outperforms existing models that consider Web caching in transcoding proxies either on a single path or at individual nodes.
Starting Page	289
Ending Page	314
Page Count	26
File Format	PDF
ISSN	15516857
e-ISSN	15516865
DOI	10.1145/1083314.1083318
Volume Number	1
Issue Number	3
Journal	ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
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	Internet Web caching Multimedia object Optimization problem Transcoding proxy Tree network
Content Type	Text
Resource Type	Article
Subject	Hardware and Architecture 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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Coordinated enroute multimedia object caching in transcoding proxies for tree networks

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