Open AccessProceedings Article
Partial prefetch for faster surfing in composite hypermedia
Javed I. Khan,Qingping Tao +1 more
- pp 2-2
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TLDR
Partial prefetch, which incorporates a scheme similar to data streaming to minimize the response-lag, is presented, which delivers content without any increase in perceived response delay, and at the same time drastically minimizes unnecessary pre-load.Abstract:
In this paper we present a prefetch technique, which incorporates a scheme similar to data streaming to minimize the response-lag. Unlike previous all or none techniques, we propose partial prefetch where the size of the lead segment is computed optimally so that only a minimum but sufficient amount of data is prefetched and buffered. The remaining segment is fetched if and only when the media is traversed. Thus, it delivers content without any increase in perceived response delay, and at the same time drastically minimizes unnecessary pre-load. The paper presents the scheme in the context of surfing in composite multimedia documents. It presents the technique and optimization scheme used for stream segmentation backed by analytical model and statistical simulation. We report remarkable increase in the responsiveness of web systems by a factor of 2-15 based on the specific situation.read more
Citations
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Hypertext Transfer Protocol (HTTP)
D. Martakos,S. Hadjiefthymiades +1 more
TL;DR: In this report (written in Greek), the basics of the hypertext transfer protocol are presented.
Journal ArticleDOI
A popularity-based prediction model for Web prefetching
Xin Chen,Xiaodong Zhang +1 more
TL;DR: A variation of the prediction by partial match model, for example, makes prefetching decisions by reviewing URLs clients have accessed on a particular server, then structuring them in a Markov predictor tree is proposed that builds common surfing patterns and regularities into the tree.
Journal ArticleDOI
Segment-based proxy caching for Internet streaming media delivery
TL;DR: This work presents two techniques supporting segment based proxy caching of streaming media objects, and evaluated these techniques in simulations and real systems.
Journal ArticleDOI
Predictive Prefetching on the Web and Its Potential Impact in the Wide Area
TL;DR: Analysis clearly shows that Predictive Prefetching can improve Web response times inside the GRNET WAN without substantial increase in network traffic due to prefetching.
Journal ArticleDOI
Segment-based streaming media proxy: modeling and optimization
TL;DR: A general model is built to analyze the performance tradeoff between the second pair of conflicting performance objectives and show that Hyper Proxy generates minimum proxy jitter with a low delayed startup ratio and a small decrease of byte hit ratio compared with existing schemes.
References
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RTP: A Transport Protocol for Real-Time Applications
TL;DR: RTP provides end-to-end network transport functions suitable for applications transmitting real-time data over multicast or unicast network services and is augmented by a control protocol (RTCP) to allow monitoring of the data delivery in a manner scalable to large multicast networks.
Real Time Streaming Protocol (RTSP)
TL;DR: The Real Time Streaming Protocol, or RTSP, is an application-level protocol for control over the delivery of data with real-time properties that is intended to control multiple data delivery sessions, provide a means for choosing delivery channels such as UDP, multicast UDP and TCP, and provide a mean for choosing Delivery mechanisms based upon RTP (RFC 1889).
Proceedings ArticleDOI
Proxy prefix caching for multimedia streams
TL;DR: This work proposes a prefix caching technique whereby a proxy stores the initial frames of popular clips, and describes how to construct a smooth transmission schedule, based on the size of the prefix, smoothing, and playback buffers, without increasing client playback delay.
Proceedings ArticleDOI
Removal policies in network caches for World-Wide Web documents
TL;DR: Surprisingly, the criteria used by several proxy-server removal policies are among the worst performing criteria in the authors' simulation; instead, replacing documents based on size maximizes hit rate in each of the studied workloads.
Proceedings Article
Exploring the bounds of web latency reduction from caching and prefetching
TL;DR: It is concluded that for the workload studied caching offers moderate assistance in reducing latency and prefetching can offer more than twice the improvement of caching but is still limited in its ability to reduce latency.