Distribuição e personalização de conteúdo multimídia em ambientes educacionais ubíquos

Abstract

Ubiquitous computing is known as the third wave of computing, which aims at making computational devices become more permeated to the users lives. It has helped people to perform their daily activities in many areas of expertise, especially in the educational domain where it assists instructors and students during their academic duties, achieving knowledge anywhere and anytime, making use of unobtrusive ways of reaching the desired content. Multimedia capture and context-awareness are two relevant subjects in ubiquitous computing research. While the former results in large amounts of digital media (e.g., video, audio, slides, text comments) being automatically produced, the latter oers the proper means to integrate and access such content. By merging the two concepts, users may benet from tools that allow them to retrieve, view and interact with the captured media artifacts. Thus, this work presents a communication model based on peer-to-peer networks, used for transferring and replicating the captured content. Furthermore, a contextual access architecture is presented for personalization and recommendation of interactive multimedia content captured in an instrumented educational environment. This architecture takes into account context information, user preferences and presentation constraints in order to personalize the access experience, tailoring it to users\' needs. As a case study, the proposals were implemented in Classroom eXperience, which is a ubiquitous computing platform for multimedia capturing designed to automatically record lectures and make them available to students.