Concept

Peer pressure

Publications associées (32)

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Designing peer-to-peer overlays

Sarunas Girdzijauskas

The Small-World phenomenon, well known under the phrase "six degrees of separation", has been for a long time under the spotlight of investigation. The fact that our social network is closely-knitted and that any two people are linked by a short chain of a ...

EPFL2009

The influence of foreign vs. North American emissions on surface ozone in the US

As part of the Hemispheric Transport of Air Pollution (HTAP; < a href='http://www.htap.org' target='_blank'> http:// www.htap.org ) project, we analyze results from 15 global and 1 hemispheric chemical transport models and compare these to Clean Air S ...

2009

Distributed rate allocation for multi-flow video delivery

We consider rate-distortion (RD) optimized multi-flow video delivery in unstructured overlay networks. We show that this problem can be studied as a distributed rate allocation. To solve the problem over the participating peers in the overlay, we apply cla ...

2009

LSH At Large - Distributed KNN Search in High Dimensions

Karl Aberer, Sebastian Michel, Parisa Haghani

We consider K-Nearest Neighbor search for high dimensional data in large-scale structured Peer-to-Peer networks. We present an efficient mapping scheme based on p-stable Locality Sensitive Hashing to assign hash buckets to peers in a Chord-style overlay ne ...

2008

PicShark: Mitigating Metadata Scarcity Through Large-Scale P2P Collaboration

Karl Aberer, Manfred Hauswirth, Philippe Cudré-Mauroux, Adriana Budura

Abstract With the commoditization of digital devices, personal information and media sharing is becoming a key application on the pervasive Web. In such a context, data annotation rather than data production is the main bottleneck. Metadata scarcity repres ...

2008

Fuzzynet: Zero-maintenance Ringless Overlay

Karl Aberer, Anwitaman Datta, Wojciech Galuba, Sarunas Girdzijauskas

Many structured overlay networks rely on a ring invariant as a core network connectivity element. The responsibility ranges of the participating peers and navigability principles (greedy routing) heavily depend on the ring structure. For correctness guaran ...

2008

Influence of Political Pressure Groups on the Stability of International Climate Agreements

Juan Carlos Altamirano Cabrera

This paper examines the effects of political pressure groups (lobbies) on the size and stability of international climate agreements. We consider two types of lobbies, industry and environmentalists. We show the potential effects of lobbying using the STAb ...

2007

The Impact of Liars on Reputation in Social Networks

Jean-Yves Le Boudec, Jochen Mundinger

We consider a closed social network with a certain proportion of liars who are trying to influence their peers reputation about some subject. Each persons reputation about this subject is based on both own direct experience and second hand information fr ...

2005

A geographical turn

Jacques Lévy

The relevance of space in human life is increasing. The point of equilibrium between constraint and freedom has moved. Individuals have become actors of their own spatiality as well as of the spatiality of others. Social actors must develop an explicit com ...

2004

Analyse du champ de pression pariétale d'un diffuseur coudé de turbine Francis

At this time, a large number of hydraulic turbomachinery installations are ageing, so that they need refurbishement to increase their efficiency and their associated output power. The items that need refurbishement are mainly the runner and the guide vanes ...

EPFL2003