: Our research concerns distance learning (DL). We are interested with distributed collaborative learning. In this approach, it is important to have indicators permitting the appreciation of durability and the evolution of groups involved. We think that actors responsible for the organisation and the working of groups (tutor for each group and coordinator of the DL session for all groups and its progress in general) can from the types of interactions and their amounts, get revealing elements permitting them to appreciate the state of a group and its evolution. From the analysis of interactions seen during a distance learning experimentation that we led, we show here that the disappearance of a group as we observed could be discerned practically in real time. It justifies for us, the necessity to set up in distance learning environments, agents capable of assisting the coordinator of the training and the tutors in their tasks.
An important issue in open agent systems such as the Internet is the discovery of service providers by potential consumers (requesters). This paper is concerned with services that involve the ongoing provision of up-to-date information to requesters. We explore three separate issues: subscription to an information provider for ongoing provision of information; monitoring for new information providers; and maintaining awareness of when providers disappear from the system. We explore several models for how this functionality may best be provided, with emphasis on the ways in which certain choices affect the overall system; and provide an analysis of preferred design options for environments with different characteristics.
In our model agent-based e-commerce system [2] we have assumed that a certain number of items of a given product is available for sale. In this note we introduce a model logistics subsystem and discuss how it will be integrated with the system.
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