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Bos, A. (author), De Weerdt, M.M. (author), Witteveen, C. (author), Tonino, J.F.M. (author), Valk, J. (author)
conference paper 1999
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De Weerdt, M.M. (author), Bos, A. (author), Tonino, J.F.M. (author), Witteveen, C. (author)
We introduce an algorithm for cooperative planning in multi-agent systems. The algorithm enables the agents to combine (fuse) their plans in order to increase their joint profits. A computational resources and skills framework is developed for representing the planned activities of an agent under time constraints. Using this resource-skill...
conference paper 2000
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Bos, A. (author), Tonino, J.F.M. (author), De Weerdt, M.M. (author), Witteveen, C. (author)
We introduce a computational framework, consisting of resources, skills, goals and services to represent the plans of individual agents and to develop models and algorithms for cooperation processes between a collection of agents.
conference paper 2000
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Van der Krogt, R.P.J. (author), Bos, A. (author), De Weerdt, M.M. (author), Witteveen, C. (author)
conference paper 2000
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De Weerdt, M.M. (author), Bos, A. (author), Tonino, J.F.M. (author), Witteveen, C. (author)
The promise of multi-agent systems is that multiple agents can solve problems more efficiently than single agents can. In this paper we propose a method to implement cooperation between agents in the planning phase, in order to achive more cost-effective solutions than without cooperation. Two results are presented: First of all, we introduce a...
conference paper 2000
document
De Weerdt, M.M. (author), Bos, A. (author), Tonino, J.F.M. (author), Witteveen, C. (author)
The promise of multi-agent systems is that multiple agents can solve problems more efficiently than single agents can. In this paper we propose a method to implement cooperation between agents in the planning phase, in order to achieve more cost-effective solutions than without cooperation. Two results are presented: First of all, we introduce a...
conference paper 2000
document
De Weerdt, M.M. (author), Bos, A. (author), Tonino, J.F.M. (author), Witteveen, C. (author)
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conference paper 2000
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De Weerdt, M.M. (author), Tonino, J.F.M. (author), Witteveen, C. (author)
In this paper we will use the framework to study cooperative heuristic multi-agent planning. During the construction of their plans, the agents use a heuristic function inspired by the FF planner (l3l). At any time in the process of planning the agents may exchange available resources, or they may request an agent to produce a missing resource....
conference paper 2001
document
De Weerdt, M.M. (author), Witteveen, C. (author)
conference paper 2001
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Van der Krogt, R.P.J. (author), De Weerdt, M.M. (author), Witteveen, C. (author)
We discuss a rigorous unifying framework for both planning and replanning, extending an existing logic-based approach to resource-based planning. The primitive concepts in this Action Resource Framework (ARF) are actions and resources. Actions consume and produce resources. Plans are structures composed of actions, resource facts and an explicit...
conference paper 2003
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Van der Krogt, R.P.J. (author), De Weerdt, M.M. (author), Witteveen, C. (author)
Opportunities arise in planning when changes in the environment make new propositions available to the planner. Replanning methods often focus only on the negative effects that changes in the environment have and therefore do not apply well. This paper introduces a method that is specifically focused on the opportunity problem. This method is...
conference paper 2003
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De Weerdt, M.M. (author), Van der Krogt, R.P.J. (author), Witteveen, C. (author)
We discuss a resource-based planning framework where agents are able to merge plans by exchanging resources. In this framework, plans are specified as structured objects composed of resource consuming and resource producing processes (actions). A plan itself can also be conceived as a process consuming input resources and producing output...
conference paper 2003
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De Weerdt, M.M. (author), Witteveen, C. (author)
Many different problems are called distributed or multiagent planning problems. Existing approaches each deal with only a subset of these problems. Which properties are essential in determining a solution method for multiagent planning problems? We argue that mainly the facts that communication is limited, agents have private goals, and the...
conference paper 2006
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Witteveen, C. (author), De Weerdt, M.M. (author)
conference paper 2006
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Verwer, S.E. (author), De Weerdt, M.M. (author), Witteveen, C. (author)
A model for discrete event systems (DES) can be learned from observations. We propose a simple type of timed automaton to model DES where the timing of the events is important. Learning such an automaton is proven to be NP-complete by a reduction from the problem of learning deterministic finite state automata (DFA) without time. Based on this...
conference paper 2006
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Verwer, S.E. (author), De Weerdt, M.M. (author), Witteveen, C. (author)
In our paper we focus on learning systems of which the execution is determined by a finite set of discrete events. The full version of this paper appeared in: Proceedings of the 15th Annual Machine Learning Conference of Belgium and the Netherlands (Benelearn 2006): http://resolver.tudelft.nl/uuid:faab7982-46bf-4d52-8a2a-324a88542584
conference paper 2006
document
Verwer, S.E. (author), De Weerdt, M.M. (author), Witteveen, C. (author)
We are interested in identifying a model for discrete event systems from observations. A common way to model discrete event systems is by using deterministic finite state automata (DFA). When observing a system, however, there often is information in addition to the system events, namely, their times of occurrence. If this time information is...
conference paper 2006
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Steenhuisen, J.R. (author), De Weerdt, M.M. (author), Witteveen, C. (author)
In crisis response, hierarchical organizations are being replaced by dynamic assemblies of autonomous agents that promise more agility. However, these autonomous agents might cause a decrease in effectiveness when individually constructed plans for moderately-coupled tasks are not jointly feasible. Existing coordination techniques can be applied...
conference paper 2007
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Verwer, S.E. (author), De Weerdt, M.M. (author), Witteveen, C. (author)
We describe an algorithm for learning simple timed automata, known as real-time automata. The transitions of real-time automata can have a temporal constraint on the time of occurrence of the current symbol relative to the previous symbol. The learning algorithm is similar to the redblue fringe state-merging algorithm for the problem of learning...
conference paper 2007
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Verwer, S.E. (author), De Weerdt, M.M. (author), Witteveen, C. (author)
A common model for discrete event systems is a deterministic finite automaton (DFA). An advantage of this model is that it can be interpreted by domain experts. When observing a real-world system, however, there often is more information than just the sequence of discrete events: the time at which these events occur may be very important. In...
conference paper 2007
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