Articles dans des revues internationales ou nationales avec comité de lecture
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New approach for short utterance speaker identification
Recent advances in the speaker recognition (SR) field showed remarkably accurate and outperforming algorithms. However, their performances drastically degrade when the sparse amount of data is available. Nowadays, recognising a speaker identity when only a small amount of speech data is involved for testing and training remains a key consideration since many real world applications […]
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Work based learning models in engineering curricula: insight from the French experience
To favour an early exposure of students to professional practice, several engineering higher education institutions have implemented integrated curricula, as proposed in the international CDIO educational framework. In the 1990s, the French engineering education accreditation body introduced in its quality standards a compulsory internship period. Based on this national experience, this article sets out the […]
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Roughness of oxide glass subcritical fracture surfaces
An original setup combining a very stable loading stage, an atomic force microscope and an environmental chamber, allows to obtain very stable subcritical fracture propagation in oxide glasses under controlled environment, and subsequently to finely characterize the nanometric roughness properties of the crack surfaces. The analysis of the surface roughness is conducted both in terms […]
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Evolution of real contact area under shear and the value of static friction of soft materials
The frictional properties of a rough contact interface are controlled by its area of real contact, the dynamical variations of which underlie our modern understanding of the ubiquitous rate-and-state friction law. In particular, the real contact area is proportional to the normal load, slowly increases at rest through aging, and drops at slip inception. Here, […]
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Distinct and combined effects of disciplinary composition and methodological support on design problem solving in groups.
Several reasons for the use of multidisciplinary teams composed of individuals with natural sci- ence and engineering background in problem‐solving processes exist. The most important are the integration of science‐based technologies into products and processes, and benefits for the problem‐solving process thanks to new knowledge and new perspectives on problems. In this study we analyse […]
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L’innovation radicale par la méthode de l’utilisateur extraordinaire
Cet article présente la méthode de l’utilisateur extraordinaire, dont le but est de stimuler l’innovation radicale en permettant aux concepteurs de redécouvrir les besoins fonctionnels liés à l’usage des produits. Cette méthode s’inspire des approches centrées utilisateurs, tout en cherchant à éviter le phénomène de Dilemme de l’innovateur, néfaste à l’innovation radicale. La méthode repose […]
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Supports technologiques collaboratifs à la méthode des Personas
Nous présentons dans cet article deux expérimentations visant à tester l’impact des technologies collaboratives sur l’efficacité de la méthode des Personas. Dans une première expérimentation, 24 concepteurs ont utilisé la méthode des Personas pour anticiper les besoins utilisateurs relatifs à la conception d’un objet communicant. Ces participants étaient affiliés à l’une ou l’autre des conditions […]
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The Flow Engine Framework: A cognitive model of optimal human experience
Flow is a well-known concept in the fields of positive and applied psychology. Examination of a large body of flow literature suggests there is a need for a conceptual model rooted in a cognitive approach to explain how this psychological phenomenon works. In this paper, we propose the Flow Engine Framework, a theoretical model explaining […]
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Incremental clustering of sonar images using self-organizing maps combined with fuzzy adaptive resonance theory
In this paper we introduce a new unsupervised segmentation algorithm for textured sonar images. A Dynamic Self-Organizing Maps (DSOM) algorithm capable of incremental learning has been developed to automatically cluster the input data into relevant classes of seabed. DSOM algorithm is an extension of classical Self- Organizing Maps (SOM) algorithm combined with Adaptive Resonance Theory […]
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Model-based strategy for grasping 3D deformable objects using a multi-fingered robotic hand
This paper presents a model-based strategy for 3D deformable object grasping using a multi-fingered robotic hand. The developed contact model is based on two force components (normal force and tangential friction force, including slipping and sticking effects) and uses a non-linear mass-spring system to describe the object deformations due the mechanical load applied by the […]
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La culture d’innovation dans les organisations françaises
D’un point de vue macroéconomique, il y a consensus quant à la nécessité d’innover. En France, les organisations concentrent leurs efforts d’innovation essentiellement sur la R&D, alors que d’autres stratégies sont plus efficaces. Cette situation peut être liée à la nature des indicateurs et des incitations à l’innovation, centrés sur les investissements réalisés plutôt que […]
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Social identity cues to improve creativity and identification in face-to-face and virtual groups
This research draws on the social identity approach to investigate group performance in face-to-face and virtual brainstorming settings. In particular, we display Social Identity Cues (SIC) on participants or on avatars to foster group membership. We compare four conditions in a factorial design: Brainstorming in Face-to-face or Virtual setting, With or Without SIC. Seventy-two students […]
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