Nikos Manouselis, PhD

Nikos Palavitsinis PhD dissertation

Last Friday, 21st of February, IE doctorate student and AgroKnow member Nikos Palavitsinis successfully presented his thesis METADATA QUALITY ISSUES IN LEARNING REPOSITORIES. The formal defense of the dissertation took place in the ancient Colegio de San Ildefonso of the University of Alcala, a beautiful baroque building currently hosting the Rectorate.

Nikos research work, supervised by IE member Salvador Sanchez and Dr. Nikos Manouselis, aimed to propose a set of methods that can be deployed throughout the life cycle of a repository to ensure that metadata generated from content providers are of high quality. The theoretical model (named MQACP for short) was applied on a Learning Federation of repositories, from day 1 of its existence until it reached its maturity and regular operation. Throughout each phase, the resulting metadata quality was measured to certify that the anticipated improvement in metadata quality actually took place. Based on the success of this first application, Nikos decided to validate the MQACP approach by applying it on another two cases of a Cultural and a Research Federation of repositories: VOA3R and Natural Europe, which allowed to prove the transferability of the approach to other cases as well as to present some similarities with the initial one.

It was a happy day for the whole IE team, many of whose members attended the dissertation (Enayat Rajabi, Rutilio Lopez, Paulo Alonso and David Marting among others). In the pictures below these lines, some moments of the day.

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dissertations, PhD

PhD dissertation by Elena Rodriguez

Last week IE PhD student and UOC assistant professor Elena Rodriguez received her PhD degree in the University of Alcalá. Elena presented her many years of research -supervisd by IE member Miguel Angel Sicilia and UOC member Jordi Conesa- in a dissertation titled “Enriching metadata by providing semantics with commonsense ontologies”. The ceremony took place in the Faculty of Philosophy of the University of Alcalá where a committee of experts chaired by Angelica de Antonio from the Polytechnic University of Madrid evaluated the dissertation.

Examination board and supervisors posing in the patio of the Faculty of Philosophy with the new PhD Elena Rodriguez (in the center of the picture wearing a white blazer)

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Successful PhD dissertation to close the year

Friday 20th of december, IE doctorate student Alejandra Segura presented her thesis defense in the Rectorate building of the University of Alcala. This research work, supervised by IE member Salvador Sanchez and Manuel E. Prieto from the University of Castilla la Mancha, aimed to propose a strategy for query expansion based on domain ontologies. According to this work, it is possible to find an strategy allowing instructional designers to find objects in a repository relevant enough as to be reused in the design of new courses or in the composition of new, more complex resources. To achieve this goal, proposals of query expansions both in the field of information retrieval in general or specifically on learning object repositories were analyzed.

For the purpose of evaluation, an experiment in the area of genetics was designed. This experiment used the Gene Ontology as a knowledge base and the MERLOT repository as a provider of learning objects in this domain. In the picture above these lines, Alejandra during her presentation in front of the evaluation board (left).

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