Search results for author:"Xavier Ochoa"
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Interdisciplinary Journal of E-Learning and Learning Objects Vol. 7, No. 1 (Jan 01, 2011) pp. 25–35
Learning Object Repositories (LOR) are the result of the activity of hundreds or thousands of contributing individuals. It has been shown in a previous work by the author (Ochoa & Duval, 2008) that LORs have an interesting macro-behavior, mostly...
Automatic Classification of Answers to Discussion Forums According to the Cognitive Domain of Bloom’s Taxonomy using Text Mining and a Bayesian Classifier
World Conference on Educational Media and Technology 2013 (Jun 24, 2013) pp. 626–634
This paper presents the implementation of an automatic classification system to categorize student’s answers in discussion forums according to Bloom’s Taxonomy. Several works had been completed in this area, in this occasion the effectiveness of a...
World Conference on Educational Media and Technology 2008 (Jun 30, 2008) pp. 6031–6048
Learning Object Repositories (LOR) are the backbone of the Learning Object Economy. However, little is known about how big they are, how they grow over time, what are the distribution of the contribution among their users or the popularity of their...
World Conference on Educational Media and Technology 2006 (June 2006) pp. 1004–1011
The quality of the learning objects metadata records stored in a repository is important its operation and interoperability. While several studies have tried to define and measure quality for metadata, a scalable and effective way to assess this...
Topics: Learning Objects
World Conference on Educational Media and Technology 2007 (Jun 25, 2007) pp. 1195–1204
Manual creation of metadata is tedious, error-prone and doesn't scale. As the amount of learning content continues to grow, it becomes less and less feasible to describe all available content manually. Moreover, the metadata humans create are not...
World Conference on Educational Media and Technology 2009 (Jun 22, 2009) pp. 189–200
The field of educational multimedia, hypermedia and communications has been explored for more than 15 years in the ED-MEDIA conference. This paper presents a bibliometric and scientometric analysis of the researchers and papers that have been part...
Frameworks for the Automatic Indexation of Learning Management Systems Content into Learning Object Repositories
World Conference on Educational Media and Technology 2005 (Jun 27, 2005) pp. 1407–1414
Learning Management Systems generally offer big repositories of learning material, but the lack of publicly available metadata to describe the learning objects makes it very difficult to share and reuse these objects. If metadata could be generated ...
Xavier Ochoa; Ana Casali; Claudia Deco; Valeria Gerling; Ismar Frango; José Fager; Gladys Carrillo; Gonzalo Parra; Jaime Muñoz-Arteaga; Jorge Maturana; Erick Araya; Regina Motz
World Conference on Educational Media and Technology 2013 (Jun 24, 2013) pp. 1106–1115
The production of high-quality open textbooks requires the collaboration of different contributors. This work conducts a comparative analysis of the six different collaborative platforms for the production of books. To be able to compare the...
Ismar Frango Silveira; Xavier Ochoa; Alex J. Cuadros-Vargas; Aln Humberto Prez Casas; Ana Casali; Andr Ortega; Antonio Silva Sprock; Carlos Henrique Alves Silva; Cesar Alberto Collazos Ordoez; Claudia Deco; Ernesto Cuadros-Vargas; Everton Knihs; Gonzalo Parra; Jaime Muoz-Arteaga; Jessica Gomes dos Santos; Julien Broisin; Nizam Omar; Regina Motz; Virginia Rods; Yosly C. Hernandez Bieliuskas
Journal of Information Technology Education: Research Vol. 12, No. 1 (2013) pp. 228–249