2014
Authors
Lopes, DDQ; Schlemmer, E; Molina, R;
Publication
Revista Polis e Psique
Abstract
2014
Authors
Cravo, J; Almeida, F; Abreu, PH; Reis, LP; Lau, N; Mota, L;
Publication
DATA & KNOWLEDGE ENGINEERING
Abstract
One of the research topics on multi-agent systems focuses on the development of mechanisms such as plans to empower a team of agents to cooperate in order to perform complex tasks. In many cases, the definition of these plans are based on a specific and rather complex grammar and stored in structured text files. In the context of the 2D simulated Robotic Soccer domain, a set-play language was proposed to coordinate the execution of teammates' behaviors to improve a team's overall performance. The process of manually writing set-play definitions is hazardous and can benefit from the use of a graphical tool to reach new users and allow typical users to become more productive. This work presents such a tool for which several experiments were run to measure its usability with forty two users by having them perform a set of tasks for which their execution time, number errors and satisfaction were recorded. The tool reduced the previous average time required to completely define a set-play by 90% and enabled even non-expert users to use it Moreover, users were on average satisfied with SPlanner having ranked it with a score of 77 (out of 100) using a System Usability Scale questionnaire.
2014
Authors
Simoes, A; Azevedo, A; Goncalves, S;
Publication
INTERNATIONAL JOURNAL OF INTEGRATED CARE
Abstract
2014
Authors
Matias, LM; Nunes, R; Ferreira, M; Moreira, JM; Gama, J;
Publication
ISMIS
Abstract
Agent scheduling in call centers is a major management problem as the optimal ratio between service quality and costs is hardly achieved. In the literature, regression and time series analysis methods have been used to address this problem by predicting the future arrival counts. In this paper, we propose to discretize these target variables into finite intervals. By reducing its domain length, the goal is to accurately mine the demand peaks as these are the main cause for abandoned calls. This was done by employing multi-class classification. This approach was tested on a real-world dataset acquired through a taxi dispatching call center. The results demonstrate that this framework can accurately reduce the number of abandoned calls, while maintaining a reasonable staff-based cost. © 2014 Springer International Publishing.
2014
Authors
Lukovic, I; Budimac, Z; Leal, JP; Janousek, J; Rocha, A; Burdescu, DD; Dragan, D;
Publication
COMPUTER SCIENCE AND INFORMATION SYSTEMS
Abstract
2014
Authors
Moura, R; Sant'Ovaia, H; Simoes, B; dos Santos, CA; Teixeira, L; Marieta Soares, JFM; Ferreira, R;
Publication
GEOCONFERENCE ON SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING, VOL I
Abstract
The Geophysical Institute of the University of Porto (IGUP) constitutes an important pillar in the scientific and technological culture, developed over more than a century in the city of Porto. A strategic plan for its recovery has been recently developed. In terms of instruments there are currently some instruments related to seismology, meteorology and radiation, which are directly related to the measurement of variables involved in the estimation of seismic hazard and risk, meteorological hazards and radiological hazards. Thus IGUP has the potential to become a center for research in the field of Natural Hazards that in turn may contribute to studies, data and parameters for civil society and the scientific community. The Recovery that is already underway in seismic station, previously included as PTO in the world network known as Worldwide Standardized seismographic Network (WWSSN), can help achieve the implementation of a complex research in seismology and simultaneously acknowledging the geopolitical importance of this stations records. With the current work we intend to show a brief analysis of a few previously unknown seismic records, relating to Soviet nuclear explosions, as well as a few aspects of the the digital signal conversion adaptation of the previous 1960s analogue equipment.
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