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Publications associées (154)

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Cost-Aware Processing of Similarity Queries in Structured Overlays

Manfred Hauswirth, Roman Schmidt

Large-scale distributed data management with P2P systems requires the existence of similarity operators for queries as we cannot assume that all users will agree on exactly the same schema and value representations and data quality problems due to spelling ...

2006

Self-organizing structured peer-to-peer overlay networks

A peer-to-peer overlay network is a logical network, built on top of a physical network. In contrast to classical client-server distributed architectures, peer-to-peer overlay networks allow location of resources without centralized control. Existing overl ...

EPFL2006

The Complex Facets of Reputation and Trust

Karl Aberer, Wojciech Galuba, Zoran Despotovic

Trust and reputation systems have proven to be essential to enforcing cooperative behavior in peer-to-peer networks. We briefly describe the current approaches to building reputation systems: social networks formation, probabilistic estimation and game the ...

Springer2006

Key Agreement in Peer-to-Peer Wireless Networks

Jean-Pierre Hubaux, Mario Cagalj, Srdan Capkun

We present a set of simple techniques for key establishment over a radio link in peer-to-peer networks. Our approach is based on the Diffie-Hellman key agreement protocol, which is known to be vulnerable to the ``man-in-the-middle" attack if the two users ...

2006

Denial-of-service resilience in peer-to-peer file sharing systems

Willy Zwaenepoel, Dan Mihai Dumitriu

Peer-to-peer (p2p) file sharing systems are characterized by highly replicated content distributed among nodes with enormous aggregate resources for storage and communication. These properties alone are not sufficient, however, to render p2p networks immun ...

2005

Semantic Overlay Networks

Karl Aberer, Philippe Cudré-Mauroux

In a handful of years only, Peer-to-Peer (P2P) systems have become an integral part of the Internet. After a few key successes related to music-sharing (e.g., Napster or Gnutella), they rapidly developed and are nowadays firmly established in various conte ...

2005

Aggregation of a Term Vocabulary for Peer-to-Peer Information Retrieval: a DHT Stress Test

Karl Aberer, Fabius Klemm

There has been an increasing research interest in developing full-text retrieval based on peer-to-peer (P2P) technology. So far, these research efforts have largely concentrated on efficiently distributing an index. However, ranking of the results retrieve ...

2005

The essence of P2P: A reference architecture for overlay networks

Karl Aberer, Manfred Hauswirth, Sarunas Girdzijauskas

The success of the P2P idea has created a huge diversity of approaches, among which overlay networks, for example, Gnutella, Kazaa, Chord, Pastry, Tapestry, P-Grid, or DKS, have received specific attention from both developers and researchers. A wide varie ...

2005

The essence of P2P: A reference architecture for overlay networks

Karl Aberer, Manfred Hauswirth, Sarunas Girdzijauskas

The success of the peer-to-peer idea has created a huge diversity of approaches. A wide variety of structures and architectures have been proposed. The terminology and abstractions used, however, are quite confusing since the P2P paradigm has interested re ...

2005

Dynamic and fault-tolerant cluster management

Recent decentralised event-based systems have focused on providing event delivery which scales with increasing number of processes. While the main focus of research has been on ensuring that processes maintain only a small amount of information on maintain ...

2005