Papers by Abdelkader Gouaich
Proceedings of the Multi-Conference on Innovative Developments in ICT
This paper presents the MIC * algebraic structure modelling an environment , called the deploymen... more This paper presents the MIC * algebraic structure modelling an environment , called the deployment environment, where autonomous, interacting and mobile entities evolve. The underlying idea of this work is that the system coherency rules assumptions are guaranteed by the structure of the deployment environment itself and no assumption is made on of the internal behaviours of agents. Thus, every agent has to follow the rules of the deployment environment to being able to interact with others. So, any misuse will be transparently rejected by the structure and other agents are not affected by bogus actions.
Nous nous interessons a la problematique des services de debat en ligne dans des contextes de dem... more Nous nous interessons a la problematique des services de debat en ligne dans des contextes de democratie participative electronique. De tels services sont des enjeux politiques majeurs, ce sont des outils permettant de replacer les citoyens au centre du debat politique et de court-circuiter une partie de l'inertie liee a la delegation. Un des problemes majeurs de tels outils est le cout de traitement des contenus produits lors de debats a grande echelle. Pour lever ce verrou nous proposons l'utilisation de modalites discursives et experimentons leur praticabilite et utilite percue.
The focus on social games in recent years has been generated by the rising number of users of MMO... more The focus on social games in recent years has been generated by the rising number of users of MMORPGs (Massive Multiplayers Role Playing Games) such as World of Warcraft (WoW). However, the rise of social games in social networks has also played an interesting part in social games awareness. In this paper we focus on ‘social' casual games in Facebook. Our assumption is that the success of games in the Facebook context is linked to the blending of personal and social aspects. In particular: (i) the engagement in ‘fictional' social actions, (ii) the use of asynchronous actions, (iii) the combination of public and private actions within the game. The three above-mentioned aspects contribute to the emergence of particular social groupings, very similar to Cova's tribes. In order to demonstrate the previous assertions the paper will first define a set of basic concepts and will then describe some practical examples from the Facebook context.
Cette these presente des concepts, modeles et outils pour la construction de systemes informatiqu... more Cette these presente des concepts, modeles et outils pour la construction de systemes informatiques dans le cadre des services electroniques disponibles partout et n'importe quand (Everywhere Anytime Computing, AEC). Dans cette these nous considerons qu'un cadre de conception et de developpement dans le contexte de l'AEC doit repondre aux points suivants: gestion de l'intermittance des communications, la composition des systemes, le respect de l'autonomie des entites, et l'interoperabilite. Pour repondre aux trois premiers points le modele algebrique d'infrastructure nomme Mouvement, Interaction, Computation (MIC*) est propose. L'autonomie des agents est garantie grâce a l'integrite structurelle. Le modele d'interaction est persistant ce qui permet de s'affranchir des intermittences du medium de communication. La composition des systemes est realisee par la composition des environnements de deploiement. L'interoperabilite est abordee p...
Debate is a valuable and effective method of learning. It is an interactive process in which lear... more Debate is a valuable and effective method of learning. It is an interactive process in which learners cooperate by exchanging arguments and counter-arguments to solve a common question. We propose a debate-based learning game for mathematics classroom to teach how to structure and build mathematical proofs. Dung’s argumentation framework and its extensions are used as a means to extract acceptable arguments that form the proof. Moreover this allows instructors to provide feedbacks to learners without information over-
One of the most challenging aspects for post stroke rehabilitation is to include other people in ... more One of the most challenging aspects for post stroke rehabilitation is to include other people in the rehabilitation process. We can identify at least three levels of inclusion in social rehabilitation: 1. Patient to Patient (Quite-symmetric collaboration or competition) This first level presents challenges related to the patients' physical abilities. In fact, the specific abilities that will be affected by stroke depend on the location, type and size of the lesion. Each patient is then characterized by a specific combination of deficits (National Stroke Association, 2010). Therefore, stroke rehabilitation programs are strongly personalized: they are adapted to a particular patient, to regain as much function as possible. Because each stroke is different from another it is possible to treat patients in independently but it's very difficult to treat them together. For example, two patients who have different recovery degrees would not be able to collaborate on the same exercis...
Proceedings of the 3rd International Conference on Agents and Artificial Intelligence
Real-time computations in agent based simulations and (serious) games possess an inherent element... more Real-time computations in agent based simulations and (serious) games possess an inherent element of temporal relationships as well as time constraints for their performance and utility measures. Such time relationships and temporal constraints can be observed in individual agent behaviors as well as coordination process involving multiple agent. The temporal relationships and time constraints in multi-agent coordination come in terms of message passing, resource management and negotiations. The idea behind such temporal relationships and time constraints is to efficiently handle complex interactions as different patterns of coordination emerge as per the updated situations under certain time durations. Here we propose our position about integrating both dimensions of individual and collective coordination in a unified manner where the coordination patterns are expressed through Allen's interval paradigm. We also introduce concept of "timers" to ensure real-time with explicit expressiveness of the interval paradigm. 2 MOTIVATIONS Real-time systems and multi-agents systems have individually contributed to many complex, heteroge-664 Mahdi G. and Gouaich A..
PloS one, 2017
When we make rapid reaching movements, we have to trade speed for accuracy. To do so, the traject... more When we make rapid reaching movements, we have to trade speed for accuracy. To do so, the trajectory of our hand is the result of an optimal balance between feed-forward and feed-back control in the face of signal-dependant noise in the sensorimotor system. How far do these principles of trajectory formation still apply after a stroke, for persons with mild to moderate sensorimotor deficits who recovered some reaching ability? Here, we examine the accuracy of fast hand reaching movements with a focus on the information capacity of the sensorimotor system and its relation to trajectory formation in young adults, in persons who had a stroke and in age-matched control participants. We find that persons with stroke follow the same trajectory formation principles, albeit parameterized differently in the face of higher sensorimotor uncertainty. Higher directional errors after a stroke result in less feed-forward control, hence more feed-back loops responsible for segmented movements. As a...
Annals of Physical and Rehabilitation Medicine, 2014
Posture équilibre et locomotion / Annals of Physical and Rehabilitation Medicine 57S (2014) e172-... more Posture équilibre et locomotion / Annals of Physical and Rehabilitation Medicine 57S (2014) e172-e177 Mots clés : Équilibre ; Stabilométrie ; Tests cliniques ; Démence Objectif.-Déterminer un test d'équilibre adapté pour une population de personnes âgées démentes, afin d'assurer une meilleure prise en charge dans la prévention des chutes. Méthode.-Vingt-trois sujets diagnostiqués déments (81 ± 6 ans), ont réalisé deux évaluations cliniques permettant d'apprécier leur équilibre : Test de Tinetti (TT), Berg Balance Scale (BBS). Ces évaluations ont été comparées à un test d'équilibre réalisé sur une plateforme stabilométrique. L'examen a été réalisé yeux ouvert et yeux fermés. Deux paramètres ont été retenus dans les analyses : la variance de la vitesse des déplacements du centre de pression en fonction de la position moyenne en Y (VFY) et le rapport de la longueur en fonction de la surface (LFS). Résultats.-Une relation significative est observée entre LFS et les résultats des 3 tests (TT, r = −0,62 p = 0,01 ; BBS, r = −0,65 p = 0,006) uniquement lors du test réalisé les yeux fermés. Des résultats similaires sont obtenus avec VFY (TT, r = −0,56 p = 0,03 ; BBS, r = −0,63 p = 0,009). Discussion.-Le BBS semble être l'évaluation clinique la mieux adaptée pour évaluer l'équilibre chez les personnes âgées démentes. L'examen stabilométrique serait un bon complément permettant d'objectiver la capacité posturale de ces sujets et de mieux adapter leur prise en charge dans la prévention des chutes.
Annals of Physical and Rehabilitation Medicine, 2014
Upper limb function / Annals of Physical and Rehabilitation Medicine 57S (2014) e178-e180 graspin... more Upper limb function / Annals of Physical and Rehabilitation Medicine 57S (2014) e178-e180 grasping and manipulation strategies in hemiparetic patients and complement assessment using standard clinical scales. Project supported by Labex SMART (supported by ANR within the "Investissements d'Avenir programme" ANR-11-IDEX-0004-02).
IEEE/WIC International Conference on Intelligent Agent Technology, 2003. IAT 2003., 2003
ABSTRACT This paper addresses the problem of conforming interactions in a highly distributed and ... more ABSTRACT This paper addresses the problem of conforming interactions in a highly distributed and disconnected environment according to their design specifications. Ubiquitous software systems are considered as a case of study.
IEEE/WIC International Conference on Intelligent Agent Technology, 2003. IAT 2003., 2003
This paper presents both theoretical and experimental results enabling the distributed implementa... more This paper presents both theoretical and experimental results enabling the distributed implementation of ubiquitous software services.
User Modeling and User-Adapted Interaction, 2015
Lecture Notes in Computer Science, 2010
Games for Training, Education, Health and Sports, 2014
In the last few years, a growing interest has been devoted to improve rehabilitation strategies b... more In the last few years, a growing interest has been devoted to improve rehabilitation strategies by including serious games in the therapy process. Adaptive serious games seek to provide the patients with an individualized rehabilitation environment that meets their training needs. In this paper, a dynamic difficulty adaptation (DDA) technique is suggested. This technique focuses on the online adaptation of the game difficulty by taking into account patients' abilities and motivation. The results of the experiment show that the adaptation technique increases the number of tasks, number of successful tasks as well as the movement amplitude during a game session. The technique positively effects the training outcomes of stroke patients, which can help them to recover their functions.
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Papers by Abdelkader Gouaich