Maria Barra

GAS: Group Adaptive System

This paper describes an ongoing research project to design a Group Adaptive System (GAS) for collaborative navigation on the web. Our objective is to provide information that adapts to web users based on automatically determined, dynamic user groups. To do this, our approach takes into account the structure of the web (using the CLEVER algorithm [16]) and user interactions when navigating the web (gathered by our collaborative environment) to offer users in a consistent information space determined by their interests and activities. In the end, our system, GAS, enables users to perform asynchronous collaborative navigation by combining resources discovered by a group of users and suggestions discovered by the CLEVER algorithm to provide recommendations to the group.

Multimodal monitoring of Web servers

We present a multimodal real-time monitoring system called MMM that describes server activity by multimodal representation and supplements traditional ways of conveying sonification and peripheral information to Webmasters. We also describe a prototype and plug-in that MMMs three-level distributed architecture implements.

Adaptive Testing by Test

We present the adaptive features of Test++, an adaptive system for training and teaching on the Internet. The system integrates an adaptive training environment for personalized training and a cooperative environment for exams both accessible via Internet and a standard Java-enabled browser.

Symmetric Adaptive Customer Modeling for Electronic Commerce in a Distributed Environment

Electronic Commerce involves more than simple online transactions, it also deals with several other fields such as market research, customers care, document exchange and customer modeling.

Teach ++: a cooperative distance learning and teaching environment

In this paper we present the key principles of the architecture o f Teach++, a cooperative environment specialized for distance learning, and its implementation as a didactic instrument for teaching programming languages. Our system is designed to be multi-user, distributed, scalable and cooperative. The goal is to integrate collaboration in a virtual classroom over shared resources by using a common browser enabled with a Java Virtual Machine. The collaboration can be during a lesson, during a one-to-one (possibly remote) tutoring and during the (cooperative) authoring phase, The system provides, among other features, a cooperative editor and a shared cooperative remote login (telnet) session.

JSEB (Java scalable services builder): scalable systems for clusters of workstations

We present a report on JSEB (Java Scalable Service Builder) whose goal is to offer programmers a tool that can be used to efficiently add scalability and fault-tolerance to a replicated service in cluster(s) of workstations.