Content-Aware Caching for Cooperative Transcoding Proxies

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Author(s): Kyungbaek Kim (University of California, Irvine, USA), Byungjip Kim (Korea Advanced Institute of Science and Technology, Korea)and Daeyeon Park (Korea Advanced Institute of Science and Technology, Korea)
Copyright: 2008
Pages: 7
Source title: Encyclopedia of Internet Technologies and Applications
Source Author(s)/Editor(s): Mario Freire (University of Beira Interior, Portugal)and Manuela Pereira (University of Beira Interior, Portugal)
DOI: 10.4018/978-1-59140-993-9.ch017

Keywords: Computer Science & IT / Information Science Reference / Internet Technologies / Web Technologies

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Abstract

In recent years, the technologies of the network and the computer have developed enormously and the diverse devices such as PDAs, mobile phones, TVs and etc which are connected to the network with various ways such as wired or wireless interfaces. These diverse devices have been able to use the web contents, but some clients can not use the web contents directly because their capabilities differ from those of the web content provider’s expectation. For these clients, the content adaptation, called the transcoding, is needed. This transcoding transforms the size, quality, presentation style, and etc of the web resources to meet the capabilities of the clients. The main features of the transcoding can be summarized with two. First is that multiple versions exist for the same web content due to the diverse client demand. Second is that the transcoding is a very computational task. These two features of the transcoding bring many issues to design a transcoding system.

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