The adaptation of the BitTorrent protocol to multimedia on-demand streaming systems essentially lies on the modification of its two core algorithms, namely the piece and the peer selection policies, respectively. Much more attention has though been given to the piece selection policy. Within this context, this article proposes three novel peer selection policies for the design of BitTorrent-lik...

The testing of concurrent software is a challenging task. A number of different research approaches have investigated adaptation of the techniques and the criteria defined for sequential programs. A major problem with the testing of concurrent software that persists is the high application cost due to the large number of the synchronizations that are required and that must be executed during te...

Résumé : Le calcul de concepts formels, et plus généralement l’usage des treillis de Galois pour l’extraction de connaissances, a motivé de très nombreuses recherches. Grâce à des progrès algorithmiques récents, ces techniques fournissent des motifs particulièrement intéressants pour l’analyse de grandes matrices codant l’expression de milliers de gènes dans des situations biologiques variées. ...

In quite a few diseases, drug resistance due to target variability poses a serious problem in pharmacotherapy. This is certainly true for HIV, and hence, it is often unknown which drug is best to use or to develop against an individual HIV strain. In this work we applied 'proteochemometric' modeling of HIV Non-Nucleoside Reverse Transcriptase (NNRTI) inhibitors to support preclinical developmen...

A data warehouse collects and maintains a large amount of data from several distributed and heterogeneous data sources. Often the data is stored in the form of materialized views in order to provide fast access to the integrated data, regardless of the availability of the data sources. In this paper we focus on the following problem: for a given set of materialized select-project-join (SPJ) vie...

Being able to formulate useful SQL queries is a fundamental skill required by many software development professionals. Masteringthis skill is a difficultprocess, requiringconsiderable practice and effort on the part of the student. In addition, assessment of SQL query formulation skills is a process that does not appear to have been thoroughly researched, and numerous problems are inherent to t...

Migration of neurons is crucial for brain development. Equally essential to this developmental process is the specific transport of proteins within the neuron for axonal and dendritic specification. This Neurobiology Select highlights new findings that shed light on the mechanisms regulating both the movement of proteins within neurons and the movement of neuronal cells themselves within the de...

This paper describes a Multilingual Open Data corpus for European languages that was built in scope of the MODEL project. We describe the approach chosen to select data sources, which data sources were used, how the source data was handled, what tools were used and what data was obtained in the result of the project. Obtained data quality is presented, and a summary of challenges and chosen sol...