77documents trouvés
WordNet-based approach towards a better comprehension between providers and clients
K.FAKHFAKH, T.CHAARI, S.TAZI, K.DRIRA, M.JMAIEL
ReDCAD Laboratory, OLC
Manifestation avec acte : International Conference on Software Engineering (CONSEG - 09), Chennai (Inde), 17-19 Décembre 2009, pp.40-51 , N° 09685
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120100Intention based ontology for SLA generation
K.FAKHFAKH, T.CHAARI, S.TAZI, K.DRIRA, M.JMAIEL
ReDCAD Laboratory, OLC
Rapport LAAS N°09567, Septembre 2009
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119002Semantic-enabled approach towards a better comprehension between service consumers and providers
K.FAKHFAKH, T.CHAARI, S.TAZI, K.DRIRA, M.JMAIEL
ReDCAD Laboratory, OLC
Rapport LAAS N°09566, Septembre 2009
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119001Alignement d'objectifs sémantiques pour la génération de contrats de qualité de services
K.FAKHFAKH, T.CHAARI, S.TAZI, K.DRIRA, M.JMAIEL, I. GUIDARA
ReDCAD Laboratory, OLC
Rapport LAAS N°09565, Septembre 2009
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119000New learning support systems
S.TAZI
OLC
Ouvrage (éditeur) : Interactive Technology and Smart Education, Vol.6, N°1, 2009, 75p. , N° 09466
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118574Extraction de l'information intentionnelle à travers le système RICAD basée sur une ontologie
H.KANSO, A.ELHORE, C.SOULE-DUPUY, S.TAZI
Toulouse I, OLC
Ouvrage (contribution) : Systèmes intelligents: théories et applications, M. Bellafhik, M. Ramdani, K. Zreik, N°ISBN 978-2-909285-55-3, 2009, pp.85-103 , N° 08471
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Mots-Clés / Keywords
Intentions; Analyse de texte; Segmentation; Ontologies; Recherche d'information; Traitement automatique des langues naturelles;
A model-driven adaptive approach for collaborative ubiquitous systems
I.BOUASSIDA, G.SANCHO, T.VILLEMUR, S.TAZI, K.DRIRA
OLC
Manifestation avec acte : The ACM International Conference on Pervasive Services (ACM ICPS'09), Londres (UK), 13-17 Juillet 2009, 6p. , N° 09211
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Abstract
Ubiquitous communicating systems have particular characteristics, such as their dynamic nature and the great number of users and heterogeneous devices involved. In our work, we focus on collaborative activities. For such activities, users are organized into groups and communicate in order to achieve a common goal. Therefore, the problem of designing and implementing collaborative applications on top of ubiquitous communicating systems is a complex task that requires adequate modeling. In our view, addressing this problem needs a model-driven approach in order to ensure the coherence and correctness of the built systems. In this paper, we propose a multi-level modeling approach for collaborative ubiquitous systems. Moreover, relevant abstraction levels are identified and means are provided for inter-level model transformation (refinement) and for adaptation to context changes (selection). This adaptation is guided by both high level requirements and low level constraints.
Mots-Clés / Keywords
Ubiquitous computing; Collaboration; Multi-level modelling;
Supporting collaborative learning activities with a digital library and annotations
T.RIOS DA ROCHA, R.WILLRICH, R.FILETO, S.TAZI
UFSC, INE-UFSC, OLC
Manifestation avec acte : 9th IFIP World Conference on Computers in Education, Bento Gonçalves (Brésil), 27-31 Juillet 2009, 10p. , N° 09031
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Abstract
Digital Libraries (DLs) usually provide facilities for browsing and searching their collections, and can enhance noticeably learning activities. The integration of an annotation tool with a DL can foster knowledge exchange between instructors and learners. It is important that an annotation system for DLs should be easily integrated with existing DLs. This paper presents an annotation system, called DLNotes, which can be easily embedded in DLs in order to enable free-text and ontology-based annotations. DLNotes also supports supervised annotation activities and allows discussion threads to be associated with each annotation, what is particularly important for e-learning.
Mots-Clés / Keywords
Digital libraries; Free-text annotations; Ontology-based annotation;
Quality of service specifications: a semantic approach
R.WILLRICH, A.COLOMBO PRUDENCIO, M.DIAZ, S.TAZI
OLC, INE-UFSC
Manifestation avec acte : 8th IEEE International Symposium on Network Computing and Applications (IEEE NCA 2009), Cambridge (USA), 9-11 Juillet 2009, 7p. , N° 09054
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Mots-Clés / Keywords
Quality of service; Service level agreements; QoS specification; Semantics; Ontology;
A model-driven adaptive framework for collaborative ubiquitous systems
G.SANCHO, I.BOUASSIDA, T.VILLEMUR, S.TAZI, K.DRIRA
OLC
Manifestation avec acte : NOTERE 2009, Montréal (Canada), 29 Juin - 3 Juillet 2009, 12p. , N° 09025
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Abstract
Ubiquitous computing environments provide a wide range of new perspectives in Computer Science. Among these, the dynamic collaborative activities carried out by groups of users present particularly complex issues. The highly dynamic nature of such activities, along with the heterogeneity of devices and communication systems, requires adaptive software solutions. In this paper, we propose a multi-layer modeling of system architectures in order to address this problem. This is necessary for taking into account both high level requirements and low level constraints. Moreover, this approach allows adapting the system architecture to handle context changes. We consistently handle inter-layer adaptation actions by considering a lower layer architecture as a refinement of an upper layer architecture. First, modeling layers for collaborative ubiquitous systems are provided. Then, we detail an implementation using OWL and graphs for models and rule oriented techniques, such as SWRL and graph grammar productions, for refinement. Finally, we consider a scenario on board of urban bus fleets as a case study from the more general group collaborative systems to which our models and procedures apply.
Mots-Clés / Keywords
Ubiquitous computing; Context awareness; Computer supported collaborative work; Graph grammars; Ontologies;