On the feasibility of commercial, legal P2P content distribution

Rodríguez, P.; Tan, Shurun; Gkantsidis, Christos

doi:10.1145/1111322.1111339

Cited by 81 publications

(73 citation statements)

References 4 publications

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“…File-sharing web pages provide private spaces where users can store their documents, and a public space where files can be shared with other users (Ceballos and Gorricho 2006). Popular examples of file-sharing communities are services such as photo-sharing or video-sharing websites (Rodriguez et al 2005).…”

Section: Introductionmentioning

confidence: 99%

A systemic and cognitive view on collaborative knowledge building with wikis

Cress¹,

Kimmerle

2008

Computer Supported Learning

416

236

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Wikis provide new opportunities for learning and for collaborative knowledge building as well as for understanding these processes. This article presents a theoretical framework for describing how learning and collaborative knowledge building take place. In order to understand these processes, three aspects need to be considered: the social processes facilitated by a wiki, the cognitive processes of the users, and how both processes influence each other mutually. For this purpose, the model presented in this article borrows from the systemic approach of Luhmann as well as from Piaget's theory of equilibration and combines these approaches. The model analyzes processes which take place in the social system of a wiki as well as in the cognitive systems of the users. The model also describes learning activities as processes of externalization and internalization. Individual learning happens through internal processes of assimilation and accommodation, whereas changes in a wiki are due to activities of external assimilation and accommodation which in turn lead to collaborative knowledge building. This article provides empirical examples for these equilibration activities by analyzing Wikipedia articles. Equilibration activities are described as being caused by subjectively perceived incongruities between an individuals' knowledge and the information provided by a wiki. Incongruities of medium level cause cognitive conflicts which in turn activate the described processes of equilibration and facilitate individual learning and collaborative knowledge building.

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Section: Introductionmentioning

confidence: 99%

A systemic and cognitive view on collaborative knowledge building with wikis

Cress¹,

Kimmerle

2008

Computer Supported Learning

416

236

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“…(5). Figures 16 (a) and 16 (b) plot the distribution of true value of transit cost metric reduction for the full PlanetLab network when the end-to-end latency and the available bandwidth employed as the routing metric, respectively.…”

Section: Reduction In Inter-isp Transit Cost Under Limitationmentioning

confidence: 99%

“…Although this policy mismatch improves end-to-end network performance, it generates a problem for the ISPs' cost structure. Specifically, the inter-ISP transit cost (just as transit cost in the remainder of this paper) is increased over the entire network [5], [6]. To reduce transit cost, the locality-aware method has been proposed in [7] that controls network traffic based on the locality inferred from the IP address prefix or domain name.…”

Section: Introductionmentioning

confidence: 99%

A Method to Reduce Inter-ISP Transit Cost Caused by Overlay Routing Based on End-to-End Network Measurement

Matsuda

Hasegawa

Kamei

et al. 2013

IEICE Trans. Inf. & Syst.

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Kazuhito MATSUDA †a) , Go HASEGAWA † †b) , Satoshi KAMEI † † †c) , and Masayuki MURATA †d) , Members SUMMARYOverlay routing is an application-level routing mechanism on overlay networks. Previous researches have revealed that the overlay routing can improve user-perceived performance. However, it may also generate traffic unintended by ISPs, incurring additional monetary cost. In addition, since ISPs and end users have their own objectives respectively regarding traffic routing, overlay routing must be operated considering both standpoints. In the present paper, we propose a method to reduce inter-ISP transit costs caused by overlay routing from the both standpoints of ISPs and end users. To determine the relationships among ASes, which are required for ISP cost-aware routing, we construct a method to estimate a transit cost of overlay-routed paths from end-to-end network performance values. Utilizing the metric, we propose a novel method that controls overlay routing from the both standpoints of ISPs and end users. Through extensive evaluations using measurement results from the actual network environments, we confirm that the advantage of the proposed method whereby we can reduce the transit cost in the overlay routing and can control the overlay routing according to the objectives of both ISPs and end users.

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“…Napster and Kazaa are popular examples for tools that let users share files (mostly illegally) over the Internet. However, lately also legal peer-to-peer file sharing networks have evolved (see [Rodriguez et al 2005]). The BBC, for instance, has started a service, based on file sharing technology, for the legal dissemination of TV shows (see [BBC 2006a]).…”

Section: File Sharing Toolsmentioning

confidence: 99%

La digital history : histoire et mémoire à la portée de tous

Noiret¹

2012

Read/Write Book 2

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Abstract:To date, one of the main aims of the World Wide Web has been to provide users with information. In addition to private homepages, large professional information providers, including news services, companies, and other organisations have set up web-sites. With the development and advance of recent technologies such as wikis, blogs, podcasting and file sharing this model is challenged and community-driven services are gaining influence rapidly. These new paradigms obliterate the clear distinction between information providers and consumers. The lines between producers and consumers are blurred even more by services such as Wikipedia, where every reader can become an author, instantly.This paper presents an overview of a broad selection of current technologies and services: blogs, wikis including Wikipedia and Wikinews, social networks such as Friendster and Orkut as well as related social services like del.icio.us, file sharing tools such as Flickr, and podcasting. These services enable user participation on the Web and manage to recruit a large number of users as authors of new content. It is argued that the transformations the Web is subject to are not driven by new technologies but by a fundamental mind shift that encourages individuals to take part in developing new structures and content. The evolving services and technologies encourage ordinary users to make their knowledge explicit and help a collective intelligence to develop.

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On the feasibility of commercial, legal P2P content distribution

Cited by 81 publications

References 4 publications

A systemic and cognitive view on collaborative knowledge building with wikis

A systemic and cognitive view on collaborative knowledge building with wikis

A Method to Reduce Inter-ISP Transit Cost Caused by Overlay Routing Based on End-to-End Network Measurement

La digital history : histoire et mémoire à la portée de tous

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