Quels facteurs limitent l’installation d’une graminée pérenne dominante pour la restauration écologique des pelouses sèches méditerranéennes ?

Quels facteurs de pertinence pour la recherche de produits ecommerce ?

E-commerce product retrieval aims to provide a quick and efficient access to products that fit user’s needs and preferences among a tail of similar or closely related products. We participated to the “Living Lab for Information Retrieval” evaluation campaign devoted to a product search task in which real users evaluated participants’ retrieval models in real search scenarios on e-commerce websi...

Quels prétraitements pour la stéréophotométrie non calibrée ?

Photometric stereo is a 3D-scanning technique which consists in taking several photographs of an object under the same angle but under different lightings. When the lightings are unknown, the problem is more complex. To solve it, further assumptions are required, amongst which the Lambertian assumption and the constraint of integrability. We show that some well-chosen preprocessings on the imag...

Quels problèmes pour la recherche d'information médicale au Mali ?

Bupa company conducted a survey between June and July 2010 in 12 countries around the world. According to this survey, at least three out of five respondents were searching for information about their health on the Internet. Mostly, respondents seek information on a disease or the symptoms of a disease and then on medications. In most cases, a general search engine is used. Another study conduc...

Contribution a l'etude des facteurs favorisant la production de la toxine tétanique

Pilotage des processus collaboratifs dans les systèmes PLM. Quels indicateurs pour quelle évaluation des performances ?

Companies that collaborate within the product development processes need to implement an effective management of their collaborative activities. Despite the implementation of a PLM system, the collaborative activities are not efficient as it might be expected. This paper presents an analysis of the problems related to the collaborative work using a PLM system, identified through a survey. From ...