Agent Based Model And Simulation
Mostrando 13-20 de 20 artigos, teses e dissertações.
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13. Modelagem e simulação de multidões humanas em situações da vida cotidiana usando ontologias
This work presents an ontology based model for simulating virtual human in normal life situation. In our approach, we consider human behavior aspects regarding environment occupation and agents movement in it. In the ontology model we specify that the environment has diferent classes of places (work, school, shops, leisure, church, etc.), each with their own
Publicado em: 2006
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14. SOBRE O COMPORTAMENTO ENDÓGENO DO MERCADO DE AÇÕES: SIMULAÇÕES E EXPERIMENTOS / ON THE ENDOGENOUS BEHAVIOUR OF THE STOCK MARKET: SIMULATION AND EXPERIMENTS
We develop a multi-agent based model of stock market and simulate it numerically. The agents are heterogeneous and risk-averse, adopting trading strategies deriving from technical analysis. The fluctuations are driven by a stochastic component in agent´s investment. The model is able to capture the stylized facts observed empirically in the stock markets in
Publicado em: 2006
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15. Nested-CA: um fundamento para modelagem de mudança de uso e cobertura do solo em multiplas escalas / Nested-ca: a foundation for multiscale modelling of land use and land cover change
This work presents the mathematical foundations of the Nested Cellular Automata (nested-CA) model, a model of computation for multiple scale Land Use and Land Cover Change studies. The main properties of nested-CA model are described and compared to the agent-based and cellular automata models of computation. The nested- CA model has been implemented in a so
Publicado em: 2006
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16. Aprendizagem por reforço na adaptação a obstáculos em navegação robótica autônoma não-estruturada baseada em imagens / Reinforcement learning for obstable avoidance in image based robotic autonomous non-structured navigation
In the last decades, robotic has become an important role for society, specially in the manufacturing industry. In recent times, applications of mobile robots, from simple toys to planets explorations, has shown how promising will be the use of these tools in a close future. Though, the cost and complexity in developing mobile robots nowadays, which should b
Publicado em: 2006
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17. Exploring cooperation and competition using agent-based modeling
Agent-based modeling enhances our capacity to model competitive and cooperative behaviors at both the individual and group levels of analysis. Models presented in these proceedings produce consistent results regarding the relative fragility of cooperative regimes among agents operating under diverse rules. These studies also show how competition and cooperat
National Academy of Sciences.
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18. Agent-based modeling as organizational and public policy simulators
Agent-based models are an increasingly powerful tool for simulating social systems because they can represent important phenomenon difficult to capture in other mathematical formalisms. But, agent-based models have provided only limited support for policy-making because their distinctive abilities are often most useful in situations where the future is unpre
National Academy of Sciences.
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19. Cross-scale, cross-pathway evaluation using an agent-based non-small cell lung cancer model
We present a multiscale agent-based non-small cell lung cancer model that consists of a 3D environment with which cancer cells interact while processing phenotypic changes. At the molecular level, transforming growth factor β (TGFβ) has been integrated into our previously developed in silico model as a second extrinsic input in addition to epidermal growth
Oxford University Press.
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20. A clinically feasible method to estimate pharmacokinetic parameters in breast cancer
Dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) is the MRI technique of choice for detecting breast cancer, which can be roughly classified as either quantitative or semiquantitative. The major advantage of quantitative DCE-MRI is its ability to provide pharmacokinetic parameters such as volume transfer constant (Ktrans) and extravascular extr
American Association of Physicists in Medicine.