A content-oriented web cache poli

Bezerra, Allan; Melo, Cesar A. V.; Vieira, Dário; Ghamri‐Doudane, Yacine; Fonseca, Nelson Luís Saldanha da

doi:10.1109/latincom.2009.5305094

Cited by 5 publications

(8 citation statements)

References 6 publications

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“…We have evaluated five policies: the context-aware and content-oriented policy (POP) [7], least recently used (LRU) policy, least frequently used (LFU) policy, popularity-aware greedy-dual size (GDSP) policy [1], and proportional partial caching (PARTIAL) policy [2]. The last four policies are representative implementations of their classes, that is, recencybased, frequency-based, and cost-based policies.…”

Section: Numerical Resultsmentioning

confidence: 99%

“…Hence, the question about how much popular a video is inside a community seems to be an important metadata to be considered when implementing an object management policy. Based on the aforementioned assumptions, we have developed an object management policy [7], that is, the popularity-based (POP) policy. In this object management policy, we keep the most popular video in cache (number of visualizations) based on a predefined threshold.…”

Section: Pop: a Content-oriented Management Policy Based On Popularitymentioning

confidence: 99%

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Performance Evaluation of an Object Management Policy Approach for P2P Networks

Vieira

Melo

Ghamri‐Doudane

2012

International Journal of Digital Multimedia Broadcasting

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The increasing popularity of network-based multimedia applications poses many challenges for content providers to supply efficient and scalable services. Peer-to-peer (P2P) systems have been shown to be a promising approach to provide large-scale video services over the Internet since, by nature, these systems show high scalability and robustness. In this paper, we propose and analyze an object management policy approach for video web cache in a P2P context, taking advantage of object's metadata, for example, video popularity, and object's encoding techniques, for example, scalable video coding (SVC). We carry out tracedriven simulations so as to evaluate the performance of our approach and compare it against traditional object management policy approaches. In addition, we study as well the impact of churn on our approach and on other object management policies that implement different caching strategies. A YouTube video collection which records over 1.6 million video's log was used in our experimental studies. The experiment results have showed that our proposed approach can improve the performance of the cache substantially. Moreover, we have found that neither the simply enlargement of peers' storage capacity nor a zero replicating strategy is effective actions to improve performance of an object management policy.

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Section: Numerical Resultsmentioning

confidence: 99%

Section: Pop: a Content-oriented Management Policy Based On Popularitymentioning

confidence: 99%

Performance Evaluation of an Object Management Policy Approach for P2P Networks

Vieira

Melo

Ghamri‐Doudane

2012

International Journal of Digital Multimedia Broadcasting

Self Cite

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“…If a situation is detected where the delivery parameters are falling, the system can choose to dynamically adapt the content quality to ease the load on the network. In [2], Bezzera proposed an object management policy to manage the caching of video objects by simultaneously considering the video popularity and SVC. The policy always keeps the most popular content in the cache by monitoring the metadata of the video objects.…”

Section: State Of the Art In Scalable Video Codecmentioning

confidence: 99%

SVC-Based HTTP Adaptive Streaming

Huysegems¹,

Vleeschauwer²,

Wu³

et al. 2012

Bell Labs Tech. J.

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“…Bezerra et al [7] evaluate the performance of object management policies implemented in a structured P2P system tailored for short video distribution. In this system, peers are labeled as stable which means they will stay connected over very long time scale.…”

Section: Related Workmentioning

confidence: 99%

“…In this system, peers are labeled as stable which means they will stay connected over very long time scale. Unlike [7], in this paper we study the impact of churn on object management policies implemented by P2P assisted CDN. For that, peers' UP and DOWN sessions have been modeled by two different churn models which use stationary alternating renewal processes to characterize sessions' durations.…”

Section: Related Workmentioning

confidence: 99%

Impact of churn on object management policies

Melo

Vieira

Filho

2011

2011 IEEE Third Latin-American Conference on Communications

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In this paper, we study the impact of churn on object management policies implemented by a P2P assisted CDN. The effectiveness of buffer enlargement and replicating control, in reducing the effects of churn on these policies, is analyzed. We have found that neither the simply enlargement of peers' storage capacity nor a zero replicating strategy are effective actions to improve performance of an object management policy. Policies that implements different caching strategies are evaluated, and a YouTube video collection, which records over 1.6 million video's log, is used in our experimental studies.

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A content-oriented web cache poli

Cited by 5 publications

References 6 publications

Performance Evaluation of an Object Management Policy Approach for P2P Networks

Performance Evaluation of an Object Management Policy Approach for P2P Networks

SVC-Based HTTP Adaptive Streaming

Impact of churn on object management policies

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