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Analiza wydajności agentów podejmujących decyzje kupna–sprzedaży w systemie wieloagentowym a-Trader

100%
Korczak J., Hernes M., Bac M.
Informatyka Ekonomiczna
|
2014
|
issue 1(31)
77-90
EN
The article presents the performance analisys issues of buy-sell decisions agents’ in a-Trader system. The system allows for supporting of investment decision on FOREX market. The first part of the article contains a description of a-Trader system. Next, the algorithms of the selected buy-sell decision agents are presented. The evaluation function of agents’ performance is elaborated, and the manner of performance analisys executing is presented in the final part of the article.
2

Reorganization in Multi-Agent Architectures: An Active Graph Grammar Approach

88%
Schatten M.
Business Systems Research Journal
|
2013
|
vol. 4
|
issue 1
14-20
EN
Background: Organizational architecture is a holistic approach to design of humane organizations and studies an organization from five perspectives: structure, culture, processes, strategy and individuals. In this paper, the concept of organizational architecture is firstly formalized using the fractal principle and then applied to multi-agent systems’ (MAS) organizations. Objectives: Providing a holistic framework for modeling all aspects of MAS reorganization. Methods/Approach: MAS organizations are formalized using graph theoryand a new active graph rewriting formalism inspired by active database theory is intoduced. Results: The newly developed framework is graphical, event-driven and applicable in a distributed MAS environment. Conclusions: By defining organizational units, processes, strategies and cultural artefacts in a recursive way, it is shown that labeled graphs andhypergraphs can be used to model various levels of organizational architecture while active graph grammars allow one to model reorganization of each of the architectural perspectives.
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