Abstract
The importance of research data management is widely recognized. Dendro is an ontology-based platform that allows researchers to describe datasets using generic and domain-specific descriptors from ontologies. Selecting or building the right ontologies for each research domain or group requires meetings between curators and researchers in order to capture the main concepts of their research. Envisioning a tool to assist curators through the automatic extraction of key concepts from research documents, we propose 2 concept extraction methods and compare them with a term extraction method. To compare the three approaches, we use as ground truth an ontology previously created by human curators.

Abstract
Health information is highly sought on the Web by users that naturally have different levels of expertise in the topics they search for. Assisting users with query formulation is important when users are searching for topics about which they have little knowledge or familiarity. To assist users with health query formulation, we developed a query suggestion system that provides alternative queries combining Portuguese and English language with lay and medico-scientific terminology. Here, we analyze how this system affects the precision of search sessions. Results show that a system providing these suggestions tends to perform better than a system without them. On specific groups of users, clicking on suggestions has positive effects on precision while using them as sources of new terms has the opposite effect. This suggests that a personalized suggestion system might have a good impact on precision.

Abstract
This paper reports the participation of the InfoLab at the TREC Precision Medicine Track 2018. InfoLab is an informal group that brings together researchers with interest in the information area and is located at Faculty of Engineering of University of Porto. The experiments made in this participation include query expansion approaches for the disease and gene concepts. The expansion of the disease terms was done using Unified Medical Language System (UMLS). UMLS is a repository that provides the mapping between a large number of vocabularies. The gene terms were expanded using Ensembl. Ensembl provides a genome browser that maps genes to their synonyms. An additional layer was developed on top of Terrier to provide the execution of a large batch of experiments. Multiple runs were evaluated in order to measure the influence of each expansion approach.

Abstract

Abstract
Este relatório corresponde ao trabalho realizado pela Universidade Aberta no âmbito do contrato estabelecido com a FCT/FCCN para a elaboração de uma proposta de Matriz Técnico-Pedagógica inicial para a plataforma NAU, destinada a cursos online, massivos e abertos (MOOC). Segue a estrutura apresentada no caderno de encargos da entidade adjudicante.

Abstract
O Repositório Aberto da UAb, como polo de agregação de publicações científicas em acesso aberto, não pode deixar de albergar e divulgar a produção científica em língua portuguesa dos docentes e investigadores da UAb. Sendo que a maioria das publicações, e aquelas que efetivamente têm maior relevância no currículo dos autores, são escritas em língua inglesa, a publicação em português é importante pela divulgação da ciência junto de populações que dominam menos o inglês, mas com grande potencial científico. Além disso, faz juz à matriz fundacional da Universidade Aberta, ao promover o uso da língua e a divulgação da sua atividade no espaço lusófono. Neste texto, analisamos o panorama da publicação científica em português na área da Informática, e apresentamos a Revista de Ciências da Computação, primeira revista científica em acesso aberto da UAb. A revista insere-se numa estratégia e política institucional de recursos abertos (REA), promovendo o acesso e a disseminação junto dos falantes de língua portuguesa espalhados pelo mundo.