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Publications

Publications by LIAAD

2014

Road drivers performance appraisal using a MCDA method: a case study in the road transport company

Authors
Morte, Raquel; Pereira, Maria Teresa Ribeiro; Fontes, Dalila B. M. M.;

Publication
V Conference on IIRH - Contemporary Isues in HRM, 2014

Abstract
Performance evaluation increasingly assumes a more important role in any organizational environment. In the transport area, the drivers are the company’s image and for this reason it is important to develop and increase their performance and commitment to the company goals. This evaluation can be used to motivate driver to improve their performance and to discover training needs. This work aims to create a performance appraisal evaluation model of the drivers based on the multi-criteria decision aid methodology. The MMASSI (Multicriteria Methodology to Support Selection of Information Systems) methodology was adapted by using a template supporting the evaluation according to the freight transportation company in study. The evaluation process involved all drivers (collaborators being evaluated), their supervisors and the company management. The final output is a ranking of the drivers, based on their performance, for each one of the scenarios used.

2014

Project scheduling with alternative tasks subject to technical failure via dynamic programming

Authors
Dalila B.M.M. Fontes; fontes, facc;

Publication

Abstract

2014

The Unit Commitment Problem with Periodicity Constraints

Authors
Dalila B.M.M. Fontes; Luis A. C. Roque; fontes, facc;

Publication

Abstract

2014

BHP universality in energy sources

Authors
Ferreira, H; Goncalves, R; Pinto, AA;

Publication
Springer Proceedings in Mathematics and Statistics

Abstract

2014

Complete versus Incomplete Information in the Hotelling Model

Authors
Pinto, AA; Parreira, T;

Publication
Springer Proceedings in Mathematics and Statistics

Abstract

2014

Dynamics of human decisions

Authors
Soeiro, R; Mousa, A; Oliveira, TR; Pinto, AA;

Publication
Journal of Dynamics and Games

Abstract
We study a dichotomous decision model, where individuals can make the decision yes or no and can influence the decisions of others. We characterize all decisions that form Nash equilibria. Taking into account the way individuals influence the decisions of others, we construct the decision tilings where the axes reflect the personal preferences of the individuals for making the decision yes or no. These tilings characterize geometrically all the pure and mixed Nash equilibria. We show, in these tilings, that Nash equilibria form degenerated hysteresis with respect to the dynamics, with the property that the pure Nash equilibria are asymptotically stable and the strict mixed equilibria are unstable. These hysteresis can help to explain the sudden appearance of social, political and economic crises. We observe the existence of limit cycles for the dynamics associated to situations where the individuals keep changing their decisions along time, but exhibiting a periodic repetition in their decisions. We introduce the notion of altruist and individualist leaders and study the way that the leader can affect the individuals to make the decision that the leader pretends. © 2014, American Institute of Mathematical Sciences.

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