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Publications associées (279)

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Semantic Integration in MADS Conceptual Model

Stefano Spaccapietra, Anastasiya Sotnykova

Our vision of a viable way for transparent and meaningful processing of heterogeneous spatio-temporal data is to put data semantics in the foundation of an integration process. We present and correlate means of integration as components of the mediation le ...

Kluwer2002

Flow control for multiple access queues

Razvan Cristescu

We study the problem of finding a characterization for the channel that results when a queue is operated under multiple access conditions. In such systems, the mechanism by which different sources gain access to the channel plays a fundamental role in defi ...

2001

Joint Textual And Visual Cues For Retrieving Images Using Latent Semantic Indexing

Martin Vetterli, Serge Ayer, Zoran Pecenovic

In this article we present a novel approach of integrating textual and visual descriptors of images in a uniﬁed retrieval structure. The methodology, inspired from text retrieval and information ﬁltering is based on Latent Semantic Indexing (LS1). ...

2001

PAPABILES Simulation-based evaluation of the impact of telematics in the Lausanne area: a pilot study

Michel Bierlaire

At the present time, variable-message signs (VMS) and variable speed-limit signs are in frequent use for traffic control, especially along urban motorways. The Lausanne by-pass is partially equipped with these and should be fully equipped in the near futur ...

2001

Combining Neural Gas and Learning Vector Quantization for Cursive Character Recognition

Alessandro Vinciarelli

This paper presents a cursive character recognizer, a crucial module in any Cursive Script Recognition system based on a segmentation and recognition approach. The character classification is achieved by combining the use of Neural Gas (NG) and Learning Ve ...

IDIAP2001

Delayed ettringite formation

Karen Scrivener

Delayed ettringite formation (DEF) can damage concrete that has experienced a temperature above about 70°C. Claims that slow release of sulfate from the clinker can have a similar effect in concrete not thus heated are unsupported. Chemical and microstruct ...

2001

SFIO a striped file I/O library for MPI

Roger Hersch, Emin Gabrielyan

This paper presents the design and evaluation of a Striped File I/O (SFIO) library for parallel I/O within an MPI environment. We present techniques for optimizing communications and disk accesses for small striping factors. Using MPI derived datatype capa ...

IEEE Computer Society2001

Information Management with Meeting Automation Tool

Alain Wegmann, Andrey Naumenko

This paper presents results of our research that targets the improvement of workgroup efficiency with technological support for the management of group-related information. We built a software tool that enables all the people in a workgroup to work with in ...

2000

Application of Information Management with Meeting Automation Tool

Alain Wegmann, Andrey Naumenko

2000

Dynamic Triangulations for Granular Media Simulations

Thomas Liebling, Jean-Albert Ferrez, Didier Müller

We present an efficient method for the computer simulation of granular media based on dynamic triangulations. Round and polygonal grains are considered. In both cases, we explain the theoretical principles on which the methods are based. The simulation sch ...

2000