Ahmed Karmouch

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0163-6804/98/$10.00 © 1998 IEEE he term mobile agent contains two separate and distinct concepts: mobility and agency.1 Mobile agents refer plainly to self-contained and identifiable computer programs that can move within the network and act on behalf of the user or another entity [1]. The idea of a self-controlled program execution near the data source has(More)
This paper presents a novel paradigm to approach the issue of autonomous policy-based management of wired/wireless differentiated communication systems. In contrast to existing management approaches which require static a priori policy configurations, policies are created dynamically. The proposed framework addresses the management issue from a new(More)
storyline which describes events which happen in time. Creating a multimedia presentation is considerably more complex. Unlike a book, which we may call uni-media and linear, multimedia presentation may have media which must occur simultaneously or in some related way; all these relations must be specified by the author. Thus there is a need for document(More)
Context-aware environments must allow adaptive and autonomous access to context information. This multi-agent middleware uses a negotiation protocol and ontology model to make the environment more easily personalized at runtime and adapted and managed at provisioning time. In a pervasive environment, a wide range of devices and resources use heterogeneous(More)
User Mobility prediction represents a key component in assisting handoff management, resource reservation, and service preconfiguration. However, most of the existing approaches presume that the user travels in an a priori known pattern with some regularity; an assumption that may not always hold. This paper presents a novel framework for user mobility(More)
Mobile users and applications are putting pressure on wireless network operators to improve the seamless handover of devices and services. Strong business competition for subscribers, along with the ever increasing availability of wireless networks will give nomadic and mobile users the opportunity, and systems the power, to make better handover decisions.(More)
A multimedia application involves information that may be in a form of video, images, audio, text and graphics, need to be stored, retrieved and manipulated in large databases. In this paper, we propose an object-oriented database schema that supports multimedia documents and their temporal, spatial and logical structures. We present a document example and(More)