Constructive negation has been proved to be a valid alternative to negation as failure, especially when negation is required to have, in a sense, an `active' role. In this pa...
This paper presents Jade, a high-level parallel programming language for managing coarse-grain concurrency. Jade simplifies programming by providing the programmer with the abstra...
We use Wikipedia articles to semantically inform the generation of query models. To this end, we apply supervised machine learning to automatically link queries to Wikipedia artic...
In this paper, we present a novel approach to Pseudo-Relevance Feedback (PRF) called Multilingual PRF (MultiPRF). The key idea is to harness multilinguality. Given a query in a la...
The visualization of geo-referenced information on a map has become an essential method to help the users to get the intended information. The adaptation of visualization techniqu...
Maria Beatriz Carmo, Ana Paula Afonso, Paulo Pombi...