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Juarez Machado da Silva, Gabriel de Oliveira Ramos and Jorge Luis Victória Barbosa
The Shortest Path (SP) problem resembles a variety of real-world situations where one needs to find paths between origins and destinations. A generalization of the SP is the Dynamic Shortest Path (DSP) problem, which also models changes in the graph at a...
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Solange Almeida, Luís Gomes, Alcino Oliveira and Paula Carreira
São Pedro do Sul thermomineral aquifer system is located in the North of Portugal. Hydrogeochemistry and isotopic studies were conducted in order to improve knowledge of this groundwater system, known since ancient Roman times for their therapeutic prope...
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Marcio Luis Ferreira Nascimento, Daniel Roberto Cassar, Riccardo Ciolini, Susana de Oliveira Souza and Francesco d?Errico
A database of 479 glass formulations used to immobilize radioactive wastes for facilities in a safe and resilient infrastructure was analyzed, searching for underlying statistical patterns and associated glass performance features. The analyzed data cove...
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Mário Antunes, Luís Oliveira, Afonso Seguro, João Veríssimo, Ruben Salgado and Tiago Murteira
Network security encloses a wide set of technologies dealing with intrusions detection. Despite the massive adoption of signature-based network intrusion detection systems (IDSs), they fail in detecting zero-day attacks and previously unseen vulnerabilit...
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Miguel Lourenço, Luís B. Oliveira, João P. Oliveira, André Mora, Henrique Oliveira and Rui Santos
Wildfires are expected to increase in number, extent, and severity due to climate change. Hence, it is ever more important to integrate technological developments and scientific knowledge into fire management aiming at protecting lives, infrastructure, a...
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Luís Oliveira, Rodrigo Rocha Silva and Jorge Bernardino
Wine is the second most popular alcoholic drink in the world behind beer. With the rise of e-commerce, recommendation systems have become a very important factor in the success of business. Recommendation systems analyze metadata to predict if, for examp...
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José Santos, Luís Duarte, João Ferreira, Ana Alves and Hugo Gonçalo Oliveira
This paper describes how we tackled the development of Amaia, a conversational agent for Portuguese entrepreneurs. After introducing the domain corpus used as Amaia?s Knowledge Base (KB), we make an extensive comparison of approaches for automatically ma...
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Pasakorn Sengsri, Chayut Ngamkhanong, Andre Luis Oliveira de Melo, Mayorkinos Papaelias and Sakdirat Kaewunruen
To a certain degree, composite railway sleepers and bearers have been recently employed as a replacement for conventional timber sleepers. Importantly, attributed to the rise in traffic demand, structural health monitoring of track structural members is ...
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Gabriela D. Oliveira and Luis C. Dias
The significant energy consumed by road transportation and the difficult market penetration of Alternative Fuel Vehicles (AFVs) has led to a substantial body of research aiming to understand consumer preferences and future demand for AFVs. The individual...
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José Gabriel Oliveira Pinto, Rui Macedo, Vitor Monteiro, Luis Barros, Tiago Sousa and João L. Afonso
This paper presents a single-phase Shunt Active Power Filter (SAPF) with a multilevel converter based on an asymmetric full-bridge topology capable of producing five distinct voltage levels. The calculation of the SAPF compensation current is based on th...
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Richard D'arc da Silva Brito,Luis Hernan Contreras Pinochet,Evandro Luiz Lopes,Mauri Aparecido de Oliveira
Pág. 1 - 16
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Giuliano Tostes Novais,Jorge Luís Silva Brito,Fabio de Oliveira Sanches
A classificação climática é considerada um estudo básico para auxílio no planejamento ambiental e econômico, definindo o clima em diversas regiões. Os modelos de classificação permitem uma compreensão sintética das principais características climáticas d...
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Richard D'arc da Silva Brito,Luis Hernan Contreras Pinochet,Evandro Luiz Lopes,Mauri Aparecido de Oliveira
Pág. 1 - 16
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Richard D'arc da Silva Brito,Luis Hernan Contreras Pinochet,Evandro Luiz Lopes,Mauri Aparecido de Oliveira
Pág. 1 - 16
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Giovanni Nico, Sérgio C. Oliveira, Joao Catalão and José Luis Zêzere
In this work, we study the capability of the ground surface to generate Persistent Scatterers (PS) based on the lithology, slope and aspect angles. These properties affect the scattering behavior of the Synthetic Aperture Radar (SAR) signal, the interfer...
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Maria da Graça Melo Simoes,Luís Miguel Oliveira Machado,Renato Rocha Souza,António Tavares Lopes
A indexação, humana e automática, foi desde sempre uma preocupação da área da ciência da informação (CI). A falta de consistência na indexação humana e de semântica na automática são apontadas como as grandes desvantagens. Uma possibilidade de dotar sist...
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Xiaoyan Wu,Vasco Salazar Soares,Luís Dias Pacheco,Fernando Oliveira Tavares
Pág. 403 - 433
Mutual funds performance evaluation measures allow to establish rankings and play an essential role for investors who want to make investment decisions. The choice of suitable measure should take into account the risk preference of investors. This paper ...
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Luís Miguel Oliveira Machado,Maria da Graça Melo Simões,Renato Rocha Souza
Entre a Ciência da Informação (CI) e a ?tríade? Biblioteconomia, Arquivística e Documentação (BAD) existe uma relação intrínseca, a ponto das suas fronteiras aparentemente se diluírem. Esta circunstância, aliada a fortes ligações com outras áreas, dificu...
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Luís Oscar Silva Martins,Paulo Henrique de Oliveira dos Santos
As influências da globalização no ambiente contábil fizeram indispensáveis algumas mudanças na forma de comunicação e nos registros contábeis. Desta forma, o presente estudo se propôs a analisar por intermédio de análise quantitativa utilizando teste de ...
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Émilien Vilas Boas Reis,Márcio Luís de Oliveira
Pág. 41 - 53
Independentemente das matrizes filosóficas liberais ou comunitárias, que justificam tanto a propriedade e a posse públicas e/ou privadas, a ocupação imobiliária urbana ou rural irregulares necessitam de regularização fundiária para viabilizar o direito f...
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