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We apply the Model-Driven Engineering for adapting User Interfaces (UI) in order to improve their accessibility into interactive system(IS). The solution that we propose has to be generic to be applicable in any context and with any type of UI. Therefore, we have developed a model driven approach based on meta-model transformations. This approach generates modality-based UI models adapted to each...
Today, mobile learning is becoming a new important learning style in our modern life. It is handy because mobile devices are used not only for communicating but also for learning in a mobile context. Mobile devices have the potential to be used as powerful m-learning tools in different learning contexts. However this poses new challenges that are associated with their ability to cope with the available...
This paper presents S.R.A.P, a system that supports teachers with the activities selection process considering different students characteristics like their motivational factors. Furthermore, the system takes into account many other aspects of the users, such as: personal information, interests, preferences and much more than let the opportunity to the system to consider the individual with her/his...
The emergence of pervasive computing and user mobility leads to the need for dynamic adaptation of user interaction on the documents which generally are multimedia oriented. The exchange of multimedia documents has a special place. In this paper we propose an approach for modeling context in pervasive computing environments for multimedia documents adaptation. Many researchers work in the area of...
As the notion of context-awareness evolves in different paradigms, the development of context-aware systems involves several processes. These processes include, inter alia, context modeling and reasoning as well as adaptation. In [1], we presented an approach that consists of context modeling and reasoning hand in hand based on relational concept analysis and descriptive logic, respectively. An essential...
The Web of Things (WoT) extends the Internet of Things to provide users with high-level features, involving physical objects connected through Web technologies and standards. Avatar-based infrastructures is one of the most promising solution for the WoT. Avatars are component-based software agents that extend physical objects and are able to reason about contextual information. A major challenge of...
Supporting adaptation of metamodels is essential for realising Model-Driven Engineering. However, adapting and changing metamodels impact other artefacts of the metamodelling ecosystem. In particular, conformant models will no longer be valid instances of their changed metamodel. This gives rise to co-evolution issues where metamodels and models are no longer synchronised. This is critical as systems...
Mobile devices have become ubiquitous, with their adoption being driven by their immediacy and sensing capabilities. Applications or apps that run on a portable computing device have recently surged in popularity. An increasing number of mobile apps and their diverse users make it difficult to select the correct app to respond to evolving situations. To address this issue, we have developed a semantic...
This work deals with Interaction Protocol (IP) adaptation for Business Processes (BP). BP describes the coordination of the actions performed by involved participants. One possible way to deal with this coordination is the use of interaction protocols (such as contract net, negotiation or vote). In order to guarantee an efficient use of IP, we need to adapt them. In this paper, we propose an MDA (Model...
Several frameworks have already been proposed to simplify the development of context-aware applications. These frameworks are focused on collecting and publishing contextual data, and on providing common semantics, definitions and representations of these data. This implies that applications share the same semantics, which limits the range of use cases where a framework can be used since that assumption...
The idea to build systems based on services, by reusing and combining software made available independently via different technologies and channels and dynamically organizing them into coherent processes, has a very well recognized potential. Achieving this potential stands crucially on the ability to recognize and exploit the context in which such applications operate, in terms of the available services,...
Applications that continuously gather and disclose personal information about users are increasingly common. While disclosing this information may be essential for these applications to function, it may also raise privacy concerns. Partly, this is due to frequently changing context that introduces new privacy threats, and makes it difficult to continuously satisfy privacy requirements. To address...
A team is defined as a set of people with complementary skills, shared responsibilities and common goals that achieve them together through information sharing and collaboration. However, personal characteristics can be very difficult to manage and it damages the collaborative work, there are many problems during its execution that can negatively compromise common goals. For this reason, it is essential...
With the continuous evolution and convergence of wireless technologies, mobile devices and sensors, the mobile, ubiquitous and pervasive learning have appeared next to the e-learning to re-organize, on the one hand, the way users interact with the technology, and on the other hand, to provide users a permanent and transparent access to information and contextual services in any time, everywhere and...
A critical success factor for ubiquitous user interfaces is the extent to which they can adapt to changing situations. Currently, the adaptive behavior of such user interfaces is defined by designers and developers at design time. However, what designers might have sketched to be a useful adaptation could be perceived by users as a disturbing system behavior or an adaptation that does not match with...
In this paper we present a framework for agent based adaptive business applications, as applied to the problem of multi-modal transportation. The framework is built taking into account a set of requirements for the New Generation of Adaptive Applications. These requirements originate both at the field of Adaptive Hypermedia and the field of Business Informatics. A life-size use case of the framework...
As a consequence of the heterogeneity of devices and services, users receive a large volume of information that is generally not relevant to their characteristics. Therefore, the need to provide information that is significant to the user arises, which leads to the use of information adaptation, process in which a service is enriched with a set of characteristics. This process tailors information...
In context-dependent acoustic modeling, it is important to strike a balance between detailed modeling and data sufficiency for robust estimation of model parameters. In the past, parameter sharing or tying is one of the most common techniques to solve the problem. In recent years, another technique which may be loosely and collectively called the subspace approach tries to express a phonetic or sub-phonetic...
Student model is an essential component in any adaptive learning environment. Various student modelling approaches have been suggested in the literature that focus on learners' competencies, preferences and other personal attributes. However, there is a lack of a comprehensive student model that combines various aspects of student modelling while also considering the aspects of location and context...
Making collaborative work environments fit the needs of changing collaboration situations is currently supported by collaborative tailoring or customization approaches requiring end-users to actively take initiative of tailoring or customization. We propose to avoid this overhead by (1) context-based adaptations of collaboration environments and (2) supporting a process model guiding the interaction...
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