We examine correlations in a time series of electric power system blackout sizes using scaled window variance analysis and R/S statistics. The data shows some evidence of long time correlations and has Hurst exponent near 0.7. Large blackouts tend to correlate with further large blackouts after a long time interval. Similar effects are also observed in many other complex systems exhibiting self...

Agent-based manufacturing systems ooer several advantages over hierarchically organized systems. However, performance of agent-based systems has been a major concern which has hampered widespread acceptance of these systems. Several researchers have noted that the performance of agent-based systems is highly sensitive to the bidding or negotiation protocols used. In this paper, we study the rob...

In this study, we develop a methodology based on computational intelligence concepts, for decision making tools using simulation of self-organized complex systems. Land-use management is considered here as the output of sustainable development strategies, dealing with the achievement of many objectives, interacting in a complex way, like environmental, economical and social objectives. The meth...

The web continues to grow at a phenomenal rate, and the amount of information on the web is overwhelming. Finding the relevant information remains a big challenge. Due to its wide distribution, its openness and high dynamics, the web is a complex system, for which we have to imagine mechanisms of content maintaining, filtering and organizing that are able to deal with its evolving dynamics and ...

Unmanned Aerial Vehicles (UAVs) have been increasingly used in the context of remote sensing missions such as target search and tracking, mapping, or surveillance monitoring. In first part our paper we consider agent dynamics, network topologies, collective behaviors. The objective is to enable multiple UAVs collaborate toward a common goal, one would find setting. ...

Agent Oriented Software Engineering (AOSE) is a software paradigm that has grasped the attention of researchers the last few years. As a result, many different methods have been introduced to help developers in the development of multi-agent systems. However, so far, these methods have mainly neglected security requirements. The common approach towards the inclusion of security within a system ...