A similarity based approach for integrated Web caching and content replication in CDNs

Stamos, Kostas; Pallis, George; Thomos, Christos; Vakali, Athena

doi:10.1109/ideas.2006.5

Cited by 12 publications

(12 citation statements)

References 12 publications

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“…These can be summarized as follows: a) surrogate servers placement [15,22], b) content outsourcing and delivery [4,13,25], c) cache organization in surrogate servers [14,26] and d) p2p and Grid technologies for the development of novel CDNs [8].…”

Section: Related Workmentioning

confidence: 99%

Evaluating the utility of content delivery networks

Stamos

Pallis

Vakali

et al. 2009

Proceedings of the 4th Edition of the UPGRADE-CN Workshop on Use of P2P, GRID and Agents for the Development of Content Network

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Content Delivery Networks (CDNs) balance costs and quality in services related to content delivery. This has urged many Web entrepreneurs to make contracts with CDNs. In the literature, a wide range of techniques has been developed, implemented and standardized for improving the performance of CDNs. The ultimate goal of all the approaches is to improve the utility of CDN surrogate servers. In this paper we define a metric which measures the utility of CDN surrogate servers, called CDN utility. This metric captures the traffic activity in a CDN, expressing the usefulness of surrogate servers in terms of data circulation in the network. Through an extensive simulation testbed, we identify the parameters that affect the CDN utility in such infrastructures. We evaluate the utility of surrogate servers under various parameters and provide insightful comments.

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Section: Related Workmentioning

confidence: 99%

Evaluating the utility of content delivery networks

Stamos

Pallis

Vakali

et al. 2009

Proceedings of the 4th Edition of the UPGRADE-CN Workshop on Use of P2P, GRID and Agents for the Development of Content Network

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“…Access bandwidth however remains the bottleneck, and a key challenge for edge ISPs therefore is to efficiently manage and distribute the content with least investment in upgrading their infrastructure. Content Delivery Networks (CDNs) are seen as primary vehicles to help service providers in this regard, by pre-fetching and caching content likely to be demanded by their customers [2], [3]. Prior work on caching and prefetching in CDNs relies on local demand patterns to predict future content demand, but the changing nature of content from broadcast to UGC indicates that different mechanisms may be needed for more accurate placement prediction of user generated content [4].…”

Section: Introductionmentioning

confidence: 99%

Towards the use of online social networks for efficient Internet content distribution

Ruhela

Tripathy

Triukose

et al. 2011

2011 Fifth IEEE International Conference on Advanced Telecommunication Systems and Networks (ANTS)

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Abstract-A large contributor to the growing Internet traffic is user generated content shared via online social networking websites. Our insight is that these websites can reveal valuable information that can be used in content delivery networks for better caching and pre-fetching performance. In this paper, we combine five different datasets from Twitter and other sources, and make several observations that can lead to helpful heuristics for better content placement. In particular, we study the temporal growth and decay, the geographical spread, and the social spread, of topics on the social network. We also describe in detail our methodologies for data collection, that can be useful for other researchers working in this space as well. In the future, we will use these observations to design heuristics for improved CDN performance.

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“…A requirement is to support the integrated caching schemes as reported in these works [2,20,29,30]. Cache consistency mechanisms must also be supported.…”

Section: Cdnsim's Caching Framework Requirementsmentioning

confidence: 99%

“…The hybrid gradually fills the surrogate servers caches with static content at each iteration, as long as it contributes to the optimization of response times. Stamos et al [29] have developed a placement similarity approach (the so called SRC ) evaluating the level of integration of Web caching with content replication. According to this approach, a similarity measure is used to determine the surrogate server size which would be devoted to caching and replication.…”

Section: Caching In Cdnsmentioning

confidence: 99%