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Hexagons, Satellites and Semantic Background

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Hierarchical Cooperation Achieves Optimal Capacity Scaling in Ad Hoc Networks

Olivier Lévêque, Ayfer Özgür Aydin

n source and destination pairs randomly located in an area want to communicate with each other. Signals transmitted from one user to another at distance r apart are subject to a power attenuation of 1/r^alpha as well as a random phase. We identify exactly ...

2007

Monitoring Collaboration from a Value Perspective

Collaborations among businesses can be described from different viewpoints. Two of these viewpoints are the value viewpoint, representing estimated values exchanged in a collaboration, and the coordination viewpoint, representing messages exchanged between ...

IEEE2007

Opportunistic Search with Semantic Fisheye Views

Pearl Pu Faltings

Search goals are often too complex or poorly defined to be solved in a single query. While refining their search goals, users are likely to apply a variety of strategies, such as searching for more general or more specific concepts in reaction to the infor ...

2004

Interactive semantic fisheye views for information workspaces

Frank Paul Janecek

In this thesis, we investigate the effectiveness of semantic fisheye views for opportunistic search and sensemaking tasks over large collections of annotated images. Semantic fisheye views are interactive visualization techniques that reveal semantic detai ...

EPFL2004

Searching with semantics: an interactive visualization technique for exploring an annotated image collection

Pearl Pu Faltings

Effective opportunistic search in visual interfaces for large information collections, such as documents, Web pages, and annotated images, often requires domain knowledge that the information seeker does not have. Relevant semantic information, such as met ...

Springer - Verlag2003

Reaching volumes generated by means of octal trees and Cartesian constraints

Ronan Boulic, Manuel Peinado

We present a system to analyze the reachability of the human body. The inverse kinematics technique is employed to find which regions of space are reachable using a certain reach strategy. This information is stored in a data structure called volume approx ...

IEEE Comput. Soc2003

Coping with False Accusations in Misbehavior Reputation Systems for Mobile Ad-hoc Networks

Jean-Yves Le Boudec, Sonja Buchegger

Some misbehavior detection and reputation systems in mobile ad-hoc networks rely on the dissemination of information of observed behavior, which makes them vulnerable to false accusations. This vulnerability could be removed by forbidding the dissemination ...

2003

Using MycDB on the World-Wide Web

Stewart Cole

MycDB is an integrated mycobacterial database. This means that it contains information on all aspects of mycobacteria, whether immunology, metabolism, or the researchers working on mycobacteria. For historical reasons, the starting point has been molecular ...

Humana Press1999

Generic Broadcast

André Schiper, Fernando Pedone

Message ordering is a fundamental abstraction in distributed systems. However, usual ordering guarantees are purely syntactic'', that is, message semantics'' is not taken into consideration, despite the fact that in several cases semantic information a ...

1999