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Towards a market managed peer-to-peer file sharing system using token-based accounting and distributed pricing
(2003)TIK ReportThis paper presents a token-based accounting mechanism that alleviates the free riding problem in P2P networks. On the basis of a P2P file sharing scenario it is shown how tokens are issued, certified and used as a payment in a secure and scalable way. The approach is complemented by distributed pricing as a flexible and viable scheme to incite users to share valuable content and to efficiently balance requests among all peers based on ...Report -
Specification of a Scalable Peer-to-Peer Search Infrastructure
(2003)TIK ReportWhile scalable mechanisms for lookup of unique IDs in peer-to-peer (P2P) systems have been found, scalability remains an issue for P2P keyword search. One solution, the SHARK algorithm, has been derived and outlined in [16]. In this document, we provide a detailed specification of the SHARK protocol and a thorough evaluation of its performance. While providing rich keyword search functionality, it is shown that SHARK can easily outperform ...Report -
Peer-to-peer search with SHARK: Symmetric redundant hierarchy adaption for routing of keywords
(2003)TIK ReportSHARK is a novel concept for search in peer-to-peer (P2P) networks. Rather than flooding a network like Gnutella or imposing numerical IDs on objects like distributed hash tables, it is based on directed routing of keywords in a multi-dimensional redundant meta-data hierarchy. SHARK arranges nodes and objects in the network and in semantic clusters. In spite of its rich keyword search capabilities, it achieves a high degree of scalability, ...Report -
Quality-of-Service for Application Service Providers
(2003)TIK ReportThis paper presents a very recent survey of the worldwide Application Service Provider (ASP) market. A questionnaire was sent out to ASPs and received answers were evaluated. The focus of the survey and the evaluation was to investigate on how ASPs are currently using Quality of Service (QoS) mechanisms and how they plan to do it in the future. The goal was to see the chances of success IP QoS mechanisms do have with their potential users. ...Report -
Design of a distributed P2P-based content management middleware
(2003)TIK ReportThere is an emerging need for Content Management Systems (CMS) enabling collaborative development, administration, and distribution of large amounts of content, in particular web content, which enfolds an in-creasing number of different types and formats of content that is made acces-sible over the Internet. Most of these systems are currently based on a client/server architecture, where content storage and management are performed centrally ...Report -