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Karl Aberer

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Publications associées (297)

Semantic Overlay Networks

Philippe Cudré-Mauroux, Karl Aberer

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

Efficient processing of XPath queries with structured overlay networks

Karl Aberer, Manfred Hauswirth, Gleb Skobeltsyn

Non-trivial search predicates beyond mere equality are at the current focus of P2P research. Structured queries, as an important type of non-trivial search, have been studied extensively mainly for unstructured P2P systems so far. As unstructured P2P syste ...

Springer Verlag2005

QoS-based Service Selection and Ranking with Trust and Reputation Management

Karl Aberer, Manfred Hauswirth

QoS-based service selection mechanisms will play an essential role in service-oriented architectures, as e-Business applications want to use services that most accurately meet their requirements. Standard approaches in this field typically are based on the ...

2005

Probabilistic Prediction of Peers' Performances in P2P Networks

Zoran Despotovic, Karl Aberer

2005

Efficient, self-contained handling of identity in Peer-to-Peer systems

Karl Aberer, Anwitaman Datta, Manfred Hauswirth

Identification is an essential building block for many services in distributed information systems. The quality and purpose of identification may differ, but the basic underlying problem is always to bind a set of attributes to an identifier in a unique an ...

2004

Semantic Gossiping: Coping with Heterogeneous Semantic Knowledge Management Systems in the Large

Philippe Cudré-Mauroux, Karl Aberer

2004

A Query-Adaptive Partial Distributed Hash Table for Peer-to-Peer Systems

Karl Aberer, Anwitaman Datta, Fabius Klemm

2004

A Probabilistic Approach to Predict Peers' Performance in P2P Networks

Zoran Despotovic, Karl Aberer

2004

Autonomous Gossiping: A self-organizing epidemic algorithm for selective information dissemination in mobile ad-hoc networks

Karl Aberer, Anwitaman Datta

We introduce autonomous gossiping (A/G), a new genre epidemic algorithm for selective dissemination of information in contrast to previous usage of epidemic algorithms which flood the whole network. A/G is a paradigm which suits well in a mobile ad-hoc net ...

2004

Using SiteRank for decentralized computation of Web document ranking

Jie Wu, Karl Aberer

2004

Autonomous Gossiping: A Self-Organizing Epidemic Algorithm for Selective Information Dissemination in Wireless Mobile Ad-Hoc Networks

Karl Aberer, Anwitaman Datta

2004

Configuration of distributed message converter systems

Karl Aberer

2004

Separating Business Process from User Interaction in Web-Based Information Commerce

Zoran Despotovic, Karl Aberer, Anwitaman Datta

In Web-based information commerce it is diffcult to disentangle presentation from process logic, and sometimes even data is not separate from the presentation. Consequently, it becomes crucial to define an abstract model for business processes and their ma ...

2003

Advanced Peer-to-Peer Networking: The P-Grid System and its Applications

Philippe Cudré-Mauroux, Jie Wu, Zoran Despotovic, Karl Aberer, Anwitaman Datta, Manfred Hauswirth, Roman Schmidt

The limitations of client/server systems become evident in an Internet-scale distributed environment. Peer-topeer (P2P) systems offer an interesting alternative to traditional client/server systems: Every node acts both as a client and a server and “ ...

2003

Start making sense: The Chatty Web approach for global semantic agreements

Philippe Cudré-Mauroux, Karl Aberer, Manfred Hauswirth

2003

Improving Data Access in P2P Systems

Karl Aberer, Manfred Hauswirth, Roman Schmidt

The P-Grid approach enables distributed search and replication. Gridella, a P2P system based on P-Grid, improves on Gnutella’s search performance while reducing bandwidth requirements. Fu ...

2002

CrossFlow: Cross-Organizational Workflow Management in Dynamic Virtual Enterprises

Karl Aberer

2000

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