9 documents found, page 1 of 1
Anomaly Detection on Natural Language Processing to Improve Predictions on Tour...
Meira, Jorge; Carneiro, João; Bolón-Canedo, Verónica; Alonso-Betanzos, Amparo; Novais, Paulo; Marreiros, GoretiArgumentation-based dialogue models have shown to be appropriate for decision contexts in which it is intended to overcome the lack of interaction between decision-makers, either because they are dispersed, they are too many, or they are simply not even known. However, to support decision processes with argumentation-based dialogue models, it is necessary to have knowledge of certain aspects that are specific t...
Fast anomaly detection with locality-sensitive hashing and hyperparameter autot...
Meira, Jorge; Eiras-Franco, Carlos; Bolón-Canedo, Verónica; Marreiros, Goreti; Alonso-Betanzos, AmparoThis paper presents LSHAD, an anomaly detection (AD) method based on Locality Sensitive Hashing (LSH), capable of dealing with large-scale datasets. The resulting algorithm is highly parallelizable and its implementation in Apache Spark further increases its ability to handle very large datasets. Moreover, the algorithm incorporates an automatic hyperparameter tuning mechanism so that users do not have to imple...
Supporting Argumentation Dialogues in Group Decision Support Systems: An Approa...
Conceição, Luís; Rodrigues, Vasco; Meira, Jorge; Marreiros, Goreti; Novais, PauloGroup decision support systems (GDSSs) have been widely studied over the recent decades. The Web-based group decision support systems appeared to support the group decision-making process by creating the conditions for it to be effective, allowing the management and participation in the process to be carried out from any place and at any time. In GDSS, argumentation is ideal, since it makes it easier to use jus...
Supporting argumentation dialogues in group decision support systems: an approa...
Conceição, Luís; Rodrigues, Vasco; Meira, Jorge; Marreiros, Goreti; Novais, PauloGroup decision support systems (GDSSs) have been widely studied over the recent decades. The Web-based group decision support systems appeared to support the group decision-making process by creating the conditions for it to be effective, allowing the management and participation in the process to be carried out from any place and at any time. In GDSS, argumentation is ideal, since it makes it easier to use jus...
Anomaly detection on natural language processing to improve predictions on tour...
Meira, Jorge; Carneiro, João; Bolón-Canedo, Verónica; Alonso-Betanzos, Amparo; Novais, Paulo; Marreiros, GoretiArgumentation-based dialogue models have shown to be appropriate for decision contexts in which it is intended to overcome the lack of interaction between decision-makers, either because they are dispersed, they are too many, or they are simply not even known. However, to support decision processes with argumentation-based dialogue models, it is necessary to have knowledge of certain aspects that are specific t...
Using machine learning to predict the users ratings on tripAdvisor based on the...
Carneiro, João; Meira, Jorge; Novais, Paulo; Marreiros, GoretiArgumentation-based dialogue models have shown to be appropriate for decision contexts in which it is intended to overcome the lack of interaction between decision-makers, either because they are dispersed, they are too many, or they are simply not even known. However, to support decision processes with argumentation-based dialogue models, it is necessary to have knowledge of certain aspects that are specific t...
Influence of intensive near-work on refractive, biometric and topographic chang...
Costa, Sónia Torres; Sousa, Sara; Meira, Jorge; Brandão, Elisete; Falcão-Reis, Fernando; Falcão, ManuelPurpose: To analyze the refractive, biometric and topographic changes in last year Portuguese medical students exposed to high educational demands. Methods: One-year longitudinal cohort study was performed. Data collected consisted in ocular refraction, axial length (AL), keratometry, corneal thickness, macular thickness and volume. Ophthalmological evaluations were performed 6 months before the students’ final...
Immediate Reactions to Fluorescein and Indocyanine Green in Retinal Angiography...
Meira, Jorge; Marques, Maria Luís; Falcão-Reis, Fernando; Gomes, Eva; Carneiro, ÂngelaIntroduction: Contrast rapid sequence angiography with fluorescein or indocyanine green (ICG) is a diagnostic procedure commonly used in ophthalmology. Adverse reactions to fluorescein and ICG are rare and may be classified as toxic, of hypersensitivity and non-specific. The evaluation and management of a patient with an adverse reaction is a challenge for the majority of ophthalmologists, as is the assessment ...
Avaliação dos Resultados da Aplicação do Implante de Dexametasona no Tratamento...
Meira, JorgeOBJETIVOS: Avaliação da eficácia e segurança do implante intravítreo de dexametasona no tratamento do edema macular diabético persistente, na prática clínica. MATERIAL E MÉTODOS: Estudo retrospetivo dos pacientes com edema macular diabético tratados com implante de dexametasona entre dezembro de 2010 e de 2016. A análise da eficácia englobou a acuidade visual e espessura central da retina. A análise de seguranç...