Fernando Almeida

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We propose a data mining approach to predict human wine taste preferences that is based on easily available analytical tests at the certification step. A large dataset (when compared to other studies in this domain) is considered, with white and red vinho verde samples (from Portugal). Three regression techniques were applied, under a computationally(More)
The complete manifestation of esophageal Chagas’ disease includes nonperistaltic contractions in the esophageal body, absent lower esophageal sphincter (LES) relaxation, and dilatation of the organ. However, some patients have a minor degree of esophageal denervation and esophageal motility that does not imply a diagnosis of achalasia. Our objective was to(More)
Since ovary denervation causes delayed puberty, we investigated the relative importance of ovary innervation on the morphology and physiology of theca interstitial cells (TIC) and granulosa cells (GC) in female rats at pre-puberty. Elimination of the sympathetic innervation was performed by long term post natal treatment with guanethidine (GD), an(More)
Certification and quality assessment are crucial issues within the wine industry. Currently, wine quality is mostly assessed by physicochemical (e.g alcohol levels) and sensory (e.g. human expert evaluation) tests. In this paper, we propose a data mining approach to predict wine preferences that is based on easily available analytical tests at the(More)
Multi-agent systems (MAS) are a research topic with ever-increasing importance. This is due to their inherently distributed organization that copes more naturally with real-life problems whose solution requires people to coordinate efforts. One of its most prominent challenges consists on the creation of efficient coordination methodologies to enable the(More)