Alejandro Echeverría

Learn More
The progress registered in the use of video games as educational tools has not yet been successfully transferred to the classroom. In an attempt to close this gap, a framework was developed that assists in the design and classroom integration of educational games. The framework addresses both the educational dimension and the ludic dimension. The(More)
In a Classroom Multiplayer Presential Game (CMPG) peers interact collaboratively with the virtual world and amongst themselves in a shared space. The design of this kind of game, however, is a complex process that must consider instruction strategies, methodology, usability and ludic aspects. This article's aim is to develop and systematize guidelines for(More)
2009, Alejandro Echeverría 2 To my parents, family and friends who supported me during this work and throughout my whole car eer. 3 ACKNOWLEDGMENTS I would like to thank all the people who helped me in completing this work. First I would like to thank Juan Felipe Calderón and Claudio Bravo, for their help developing the application and testing it in the(More)
A new version of Fisher's discriminant analysis (FDA) is introduced in this paper. Our algorithm searches also for a reduced space in which patterns can be discriminated. However, no intermediate class sep-arability criterion (such as Fisher's mean distance divided by variance) is used whatsoever. Classification performance is optimized directly. Since no(More)