Concept

Science de l'information

Publications associées (303)

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Application of Information Retrieval Techniques to Single Writer Documents

Alessandro Vinciarelli

This work shows Information Retrieval experiments performed over handwritten documents produced by a single writer. The same retrieval task has been performed over both manual (no errors) and automatic (Word Error Rate around 45%) transcriptions of 200 han ...

2005

Creating an Interactive Network for Wine-cultivation

Jens Ingensand, Régis Caloz

This paper presents an ongoing project in the Swiss Canton de Vaud - the development of an interactive network for wine-cultivation. The goal of the project is to develop an interactive application where winegrowers and other actors involved in wine-cultiv ...

2005

Sociometry Based Multiparty Audio Recordings Segmentation

Alessandro Vinciarelli

This paper shows how Social Network Analysis, the sociological domain studying the interaction between people in specific social environments, can be used to assign roles to different speakers in multiparty recordings. The experiments presented in this wor ...

IDIAP2005

Opportunistic search with semantic fisheye views

Pearl Pu Faltings

Search goals are often too complex or poorly defined to be solved with a single query in a Web-based information environment. In this paper we describe how we use semantic fisheye views (SFEVs) to effectively support opportunistic search and browsing strat ...

Springer-Verlag2004

Multi modal tracking in complex environments for augmented reality applications

This work presents a model based real-time method for tracking 3D objects with a monocular camera. Our goal is to implement a tracking algorithm with a non conventional robustness in order to be used in hostile environments. We achieve this goal by integra ...

EPFL2004

A Robust Reputation System for Peer-to-Peer and Mobile Ad-hoc Networks

Jean-Yves Le Boudec, Sonja Buchegger

Reputation systems can be tricked by the spread of false reputation ratings, be it false accusations or false praise. Simple solutions such as exclusively relying on one`s own direct observations have drawbacks, as they do not make use of all the informati ...

2004

Perceptual Prefiltering for Video Coding

Touradj Ebrahimi

Semantic segmentation is generally associated with second generation video coders, or object-based coders. Object-based coders encode different video objects separately in order to achieve lower bitrates and to enable object-based functionalities. In this ...

IEEE2004

Coping with misbehavior in mobile ad-hoc networks

Sonja Buchegger

In this work, we address the question of how to enable a system to operate despite the presence of misbehavior. Specifically, in a mobile ad-hoc network, how can we keep the network functional for normal nodes when other nodes do not route and forward corr ...

EPFL2004

Coping With Misbehavior in Mobile Ad-hoc Networks

Sonja Buchegger

CRC Press2004

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