2025
Autores
Penelas, G; Barbosa, L; Reis, A; Barroso, J; Pinto, T;
Publicação
ALGORITHMS
Abstract
In the field of gaming artificial intelligence, selecting the appropriate machine learning approach is essential for improving decision-making and automation. This paper examines the effectiveness of deep reinforcement learning (DRL) within interactive gaming environments, focusing on complex decision-making tasks. Utilizing the Unity engine, we conducted experiments to evaluate DRL methodologies in simulating realistic and adaptive agent behavior. A vehicle driving game is implemented, in which the goal is to reach a certain target within a small number of steps, while respecting the boundaries of the roads. Our study compares Proximal Policy Optimization (PPO) and Soft Actor-Critic (SAC) in terms of learning efficiency, decision-making accuracy, and adaptability. The results demonstrate that PPO successfully learns to reach the target, achieving higher and more stable cumulative rewards. Conversely, SAC struggles to reach the target, displaying significant variability and lower performance. These findings highlight the effectiveness of PPO in this context and indicate the need for further development, adaptation, and tuning of SAC. This research contributes to developing innovative approaches in how ML can improve how player agents adapt and react to their environments, thereby enhancing realism and dynamics in gaming experiences. Additionally, this work emphasizes the utility of using games to evolve such models, preparing them for real-world applications, namely in the field of vehicles' autonomous driving and optimal route calculation.
2013
Autores
Pereira, Ivo F.; Praça, Isabel; Pinto, Tiago; Sousa, Tiago; Freitas, Ana; Vale, Zita;
Publicação
First ELECON Workshop – Towards Efficient European and Brazilian Electricity Markets
Abstract
The study of Electricity Markets operation has been gaining an increasing importance in the last years,
as result of the new challenges that the restructuring produced. Currently, lots of information
concerning Electricity Markets is available, as market operators provide, after a period of
confidentiality, data regarding market proposals and transactions. These data can be used as source of
knowledge, to define realistic scenarios, essential for understanding and forecast Electricity Markets
behaviour. The development of tools able to extract, transform, store and dynamically update data, is of
great importance to go a step further into the comprehension of Electricity Markets and the behaviour
of the involved entities. In this paper we present an adaptable tool capable of downloading, parsing and
storing data from market operators’ websites, assuring actualization and reliability of stored data.
2014
Autores
Marques, Luís; Pinto, Tiago; Sousa, Tiago; Praça, Isabel; Vale, Zita; Abreu, Samuel L.;
Publicação
Second ELECON Workshop – Consumer control in Smart Grids
Abstract
This paper presents several forecasting methodologies based on the application of Artificial Neural Networks (ANN) and Support Vector Machines (SVM), directed to the prediction of the solar radiance intensity. The methodologies differ from each other by using different information in the training of the methods, i.e, different environmental complementary fields such as the wind speed, temperature, and humidity. Additionally, different ways of considering the data series information have been considered. Sensitivity testing has been performed on all methodologies in order to achieve the best parameterizations for the proposed approaches. Results show that the SVM approach using the exponential Radial Basis Function (eRBF) is capable of achieving the best forecasting results, and in half execution time of the ANN based approaches.
2021
Autores
Santos, G; Gomes, L; Pinto, T; Vale, Z; Faria, P;
Publicação
Abstract
2021
Autores
Gomes, L; Vale, Z; Pinto, T;
Publicação
Abstract
2022
Autores
Gomes, L; Pinto, T; Vale, Z;
Publicação
Abstract
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