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expansion of urban area is a well-known phenomenon in developing countries with population growth and the migration from villages to cities being two major factors. those factors reduce the influence of efforts to limit the cities boundaries. thus, spatial planners always look for the models that simulate the expansion of urban land-uses, and enable them to prevent unbalanced expansions of citi...

in knowledge-based economy, knowledge has a public good and non-rivalry nature. firms build their own knowledge stock not only by means of internal r&d and collaboration with partners, but also by means of previously spilled over knowledge of other firms and public research laboratories (such as universities). firms based on their absorptive capacity, and level of intra-industry and extra-i...

application of agent based model in simulation of stakeholder’s behavior is slightly a new method for modeling of complicated systems that include autonomous agents interacting with each other. recent numerical achievements have made the applications of agent based models possible in various fields. these applications range from modeling of human progress and destruction of past civilizations t...

The spread of rumors, which are known as unverified statements of uncertain origin, may threaten the society and it's controlling, is important for national security councils of countries. If it would be possible to identify factors affecting spreading a rumor (such as agents’ desires, trust network, etc.) then, this could be used to slow down or stop its spreading. Therefore, a computational m...

Mobile Agents represent a crucial part in most agent-based systems. However, very little work has taken place in modelling such systems and, up to now, none of the existing agent oriented methodologies provide concepts and notations to fully capture mobile agents. In this work we are presenting extensions to the Unified Modeling Language (UML) to model mobile agents. We use three different scen...