Luis A. Guerrero

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Much of the research on collaborative work focuses on the quality of the group outcome as a measure of success. There is less research on the collaboration process itself, but an understanding of the process should help to improve both the process and the outcomes of collaboration. Understanding and analyzing collaborative learning processes requires a(More)
In a cluster of many servers containing heterogeneous multimedia learning material and serving users with different backgrounds (e.g. language, interests, previous knowledge, hardware and connectivity) it may be difficult for the learners to find a piece of material which fit their needs. This is the case of the COLDEX project. Recommender systems have been(More)
Navigation in indoor environments is highly challenging for the severely visually impaired, particularly in spaces visited for the first time. Several solutions have been proposed to deal with this challenge. Although some of them have shown to be useful in real scenarios, they involve an important deployment effort or use artifacts that are not natural for(More)
Collaborative applications provide a group of users with the facility to communicate and share data in a coordinated way. Building collaborative applications is still a complex task. In this paper we propose a pattern system to design basic aspects of data sharing, communication, and coordination for collaborative applications. These patterns are useful for(More)
Several researchers in the area of cooperative work take as a success criterion the quality of the group outcome. Nevertheless, recent findings are giving more importance to the quality of “cooperation process” itself. This paper presents the design of a software tool that allow us to capture information concerned with the group work. Besides to reveal the(More)
People with different skills and knowledge can contribute in future decisions and best-practices. In order to help us, there are different mechanisms to represent and organize knowledge. In this paper, we present and discuss a computer tool that it has been developed to support the externalization of tacit knowledge through a storytelling activity. The tool(More)
Positive interdependence is the heart of collaborative activities that define collaboration and transform group work into teamwork. To achieve positive interdependence among students, just putting them in group and telling them to work together may not be sufficient. Previously, several types of positive interdependencies have been identified for(More)