2013
Authors
Pinto, T; Praca, I; Santos, G; Vale, Z;
Publication
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Abstract
Electricity markets are complex environments with very particular characteristics. A critical issue concerns the constant changes they are subject to. This is a result of the electricity markets' restructuring, performed so that the competitiveness could be increased, but with exponential implications in the increase of the complexity and unpredictability in those markets' scope. The constant growth in markets unpredictability resulted in an amplified need for market intervenient entities in foreseeing market behavior. The need for understanding the market mechanisms and how the involved players' interaction affects the outcomes of the markets, contributed to the growth of usage of simulation tools. Multi-agent based software is particularly well fitted to analyze dynamic and adaptive systems with complex interactions among its constituents, such as electricity markets. This paper presents the Multi-Agent System for Competitive Electricity Markets (MASCEM) - a simulator based on multi-agent technology that provides a realistic platform to simulate electricity markets, the numerous negotiation opportunities and the participating entities. © 2013 Springer-Verlag Berlin Heidelberg.
2013
Authors
Barreto, J; Praca, I; Pinto, T; Sousa, TM; Vale, Z;
Publication
PROCEEDINGS OF THE 2013 IEEE CONFERENCE ON EVOLVING AND ADAPTIVE INTELLIGENT SYSTEMS (EAIS)
Abstract
Electricity markets are complex environments comprising several negotiation mechanisms. MASCEM (Multi-Agent System for Competitive Electricity Markets) is a simulator developed to allow deep studies of the interactions between the players that take part in the electricity market negotiations. ALBidS (Adaptive Learning Strategic Bidding System) is a multiagent system created to provide decision support to market negotiating players. Fully integrated with MASCEM it considers several different methodologies based on very distinct approaches. The Six Thinking Hats is a powerful technique used to look at decisions from different perspectives. This paper aims to complement ALBidS strategies usage by MASCEM players, providing, through the Six Thinking hats group decision technique, a means to combine them and take advantages from their different perspectives. The combination of the different proposals resulting from ALBidS' strategies is performed through the application of a Genetic Algorithm, resulting in an evolutionary learning approach.
2013
Authors
Santos, G; Praca, I; Pinto, T; Ramos, S; Vale, Z;
Publication
2013 IEEE SYMPOSIUM ON INTELLIGENT AGENT (IA)
Abstract
This document presents a tool able to automatically gather data provided by real energy markets and to generate scenarios, capture and improve market players' profiles and strategies by using knowledge discovery processes in databases supported by artificial intelligence techniques, data mining algorithms and machine learning methods. It provides the means for generating scenarios with different dimensions and characteristics, ensuring the representation of real and adapted markets, and their participating entities. The scenarios generator module enhances the MASCEM (Multi-Agent Simulator of Competitive Electricity Markets) simulator, endowing a more effective tool for decision support. The achievements from the implementation of the proposed module enables researchers and electricity markets' participating entities to analyze data, create real scenarios and make experiments with them. On the other hand, applying knowledge discovery techniques to real data also allows the improvement of MASCEM agents' profiles and strategies resulting in a better representation of real market players' behavior. This work aims to improve the comprehension of electricity markets and the interactions among the involved entities through adequate multi-agent simulation.
2013
Authors
Pereira, Ivo F.; Praça, Isabel; Pinto, Tiago; Sousa, Tiago; Freitas, Ana; Vale, Zita;
Publication
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.
2013
Authors
Ferreira, LL; Albano, M; Pinho, LM;
Publication
IEEE International Conference on Emerging Technologies and Factory Automation, ETFA
Abstract
In this paper we analyze some of the existing solutions for Message-Oriented Middleware (MOM), which can be used on industrial environments, and that are, at the same time, capable of handling large quantities of data and of providing adequate Quality-of-Service (QoS) levels for its supported applications. We also make a proposal for the generic structure of a middleware layer supported on a MOM. © 2013 IEEE.
2013
Authors
Garibay Martinez, R; Ferreira, LL; Maia, C; Pinho, LM;
Publication
2018 8TH IEEE INTERNATIONAL SYMPOSIUM ON INDUSTRIAL EMBEDDED SYSTEMS (SIES)
Abstract
An increasing number of real-time embedded applications present high computation requirements which need to be realized within strict time constraints. Simultaneously, architectures are becoming more and more heterogeneous, programming models are having difficulty in scaling or stepping outside of a particular domain, and programming such solutions requires detailed knowledge of the system and the skills of an experienced programmer. In this context, this paper advocates the transparent integration of a parallel and distributed execution framework, capable of meeting real-time constraints, based on OpenMP programming model, and using MPI as the distribution mechanism. The paper also introduces our modified implementation of GCC compiler, enabled to support such parallel and distributed computations, which is evaluated through a real implementation. This evaluation gives important hints, towards the development of the parallel/distributed fork-join framework for supporting real-time embedded applications.
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