Giacomo Cabri

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Mobile agents represent a promising technology for the development of Internet applications. However, mobile computational entities introduce peculiar problems w.r.t. the coordination of the application components. The paper outlines the advantages of Linda-like coordination models, and shows how a programmable coordination model based on reactive tuple(More)
The paper presents a system for synchronous cooperative browsing that permits users within a workgroup to share information and cooperate toward a common goal. The system implementation is based on a Java proxy, to achieve portability without requiring modification neither to browsers nor to servers. In addition, the paper shows that the implemented system(More)
<i>Mobility introduces peculiar coordination problems in agent-based Internet applications. First, it suggests the exploitation of an infrastructure based on a multiplicity of local interaction spaces. Second, it may require coordination activities to be adapted both to the characteristics of the execution environment where they occur and to the needs of(More)
Mobile active computational entities introduce peculiar problems in the coordination of distributed application components. The paper surveys several coordination models for mobile agent applications and outlines the advantages of uncoupled coordination models based on reactive blackboards. On this base, the paper presents the design and the implementation(More)
Users’ environments are going to be disseminated of intelligent devices and sensors that will coordinate each other to help users in their activities. This leads to what is called “Ambient Intelligence”, i.e., environments that exhibits a certain degree of intelligence. Software agents are the natural candidates for this kind of task, thanks to their(More)
* 0-7803-8566-7/04/$20.00  2004 IEEE. Abstract The development of agent-based systems must take into account interactions, carefully modelling and engineering them. Roles represent a good concept that can help designers and developers dealing with interactions. So far, several role approaches for agents have been proposed. This paper presents a survey on(More)
This chapter focuses on tuple-based (Linda-like) coordination models as middleware services for mobile and pervasive computing systems. After having introduced the basic concepts of tuple-based coordination, the chapter discusses the suitability of tuple-based models for mobility and introduces a simple taxonomy of tuplebased middleware models for mobile(More)
The large amount of information that is spread over the Internet is an important resource for all people but also introduces some issues that must be faced. The dynamism and the uncertainty of the Internet, along with the heterogeneity of the sources of information are the two main challenges for the today’s technologies. This paper proposes an approach(More)