Naouel Ayari

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In recent years, with the massive use of Golomb rulers in various fields of engineering, new optimal rulers have become an important subject of search. Many different approaches have been proposed to tackle the Golomb ruler problem such as exact methods, constraint programming, local searches and evolutionary algorithms. This paper describes an hybrid(More)
In this paper, we present a semantic framework that is intended to enable natural interactions between ubiquitous robots and humans in Ambient Intelligence (AmI) environments. The main contribution of this paper is the extension of the core of the Narrative Knowledge Representation Language (NKRL) framework with semantic modules to allow on one hand,(More)
Internet server clustering has been widely used by operators to improve the scalability and the availability of the rendered services under heavy load condition. Load balancing is a well known mean to optimize the usage of the cluster available resources by fairly allocating them to the offered network traffic. Most state-of-the-art research advocate either(More)
Under overload condition, a processing server contributes to the poor QoS through sustaining heavy request queuing delays and prolonged processing time. Admission control is a well known mean to prevent a server overload. Most state of the art research advocate session oblivious mechanisms where the dropping of the requests pertaining to an accepted session(More)
The next generation of ambient assisted living services will be based on eco-systems or organizations of intelligent artificial agents embodied in companion robots and smart objects. To provide, anywhere and anytime, smart assistance services to people, these agents need to be endowed with advanced knowledge representation, reasoning and communication(More)
This paper reports our progress in integrating the Narrative Knowledge Representation Language (NKRL) components according to the HARMS model to build intelligent assistive services in Ambient Assisted Living (AAL) applications. NKRL is used to define reasoning and interaction rules that allow the HARMS actors to proactively decide to communicate, interact,(More)
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