Anotação de Conteúdo Multimídia em Repositórios com Interfaces Web baseadas em Conhecimento de Domínio

• Wanderson Rigo UFSC
• Renato Fileto UFSC
• Roberto Willrich UFSC
• Vilmar César Pereira Júnior UFSC
• Christiane Gresse von Wangenheim UFSC
• Vinícius de Araújo Oliveira UNASUS
• Lina Sandra Barreto Brasil UNASUS

Abstract

This paper presents a system to support semantic annotation and semantic browsing of contents from repositories on the Web, by using domain specific knowledge and visualization techniques. Empirical tests of this system, involving the annotation of multimedia learning objects from the health area, showed gains in annotation time, by using the proposed semantic support. These tests also indicated usability and viability of the proposal in the considered domain, and the users’ predilection for an interface based on lexical and semantic auto-complete, instead of navigation in trees, to choose metadata values from a knowledge base for annotation purposes.

Keywords: Graphical User Interfaces (GUI), Knowledge Visualization, Content Tagging, Information Retrieval