In this paper, we have developed an analytical model to evaluate the performance of home agent, quorum based, and grid location service update schemes using Markov chain. The model evaluates the performance in terms of the cost of updates and queries. The cost of updates is computed in terms of the hops used in updating a location. The model also considers selective queries for destination sear...

The effectiveness of multiple UAVs at attacking the enemy target and defending against simultaneously gained researchers’ attention due to their cost efficiency high mission success rates. This paper explores UAV swarm vs. offense/defense confrontation decision-making while aircraft carriers on open seas. system is developed as a multi-agent system. Precisely, every modeled an independent agent...

This paper presents a multi agent system for the job shop scheduling problems. The proposed system consists of initial scheduling agent, search agents, and schedule management agent. In initial scheduling agent, a modified Shifting Bottleneck is proposed. That is, an effective heuristic approach and can generate a good solution in a low computational effort. In search agents, a hybrid search ap...

This paper describes the first impressions of the development of a multi-agent system that can be used for visualising simulated pedestrian activity and behaviour to support the assessment of design performance. This system is based on cellular automata and agent technology. Agents represent objects or people with their own behaviour, moving over a pedestrian network. Each agent is located in a...

We present a logic programming based asynchronous multi-agent system in which agents can communicate with one another; update themselves and each other; abduce hypotheses to explain observations, and use them to generate actions. The knowledge base of the agents is comprised of generalized logic programs, integrity constraints, active rules, and of abducibles. We characterize the interaction am...

Batch verification can provide large computational savings when several signatures, or other constructs, are verified together. Several batch verification algorithms have been published in recent years, in particular for both DSA-type and RSA signatures. We describe new attacks on several of these published schemes. A general weakness is explained which applies to almost all known batch verifie...

Security of systems and information has always been a challenge to organisations and industries. Many technical solutions including firewalls, encryption and anti-virus software have been used, yet security still remains a problem. These security solutions failures are largely due to the fact that as systems become more complex, a lot of interaction is involved between various actors. Some of t...

It has been becoming more and more important to design systems capable of performing high-level management and control tasks in interactive dynamic environments. At the same time, it is difficult to develop and maintain such complex systems with our traditional software techniques. The agent-oriented/based systems, rooted in a different view of computational entities, offer prospects for a qual...