Multi-agent systems have been importantly contributing to the development of the theory and the practice of complex distributed systems and, in particular, they have shown their potential to meet critical needs in high-speed, mission-critical, content-rich, distributed information applications where mutual interdependencies, dynamic environments, uncertainty, and sophisticated control play a re...

This work introduces a new evolutionary approach to solving the problems of multiobjective optimization. Novelty of the proposed method consists in the application of an evolutionary multi-agent system equipped with the mechanism(s) of elitism, instead of its ’classical’ (non-elitist) version. In the paper the model of an elitist evolutionary multi-agent system is described together with its sa...

Domain decomposition algorithms based on the Schwarz alternating method are developed for the numerical solution of singularly perturbed semi-linear elliptic problems. The emphasis is given to the description of two variants of the algorithm (multi-domain Schwarz alternating method and two-level Schwarz method) as well as their computer realization on a distributed memory multi-processor comput...

We demonstrate the realization of stigmergic coverage for multi-robot systems. Compared to current state-of-the-art algorithms for multi-robot coverage, our Stigmergy-based Coverage algorithm (StiCo) has several key advantages. In particular, it does not need direct robot-robot communication. Moreover, this algorithm does not require any prior information about the environment. Simulation resul...

Dedicated to my long-time friend and colleague, Paul Fuhrmann, on the occasion of his 60 th birthday Abstract We show how a certain class of Hamiltonian systems give rise to diierential equations on spaces of matrices whose elements are rational functions. In particular, we reinterpret the results of Kac and van Moerbeke on the periodic Toda lattice in terms of such diierential equations and re...

HDS (Heterogeneous Distributed System) is a software framework that tries to simplify the realization of distributed applications and, in particular, of multi-agent systems, by merging the client-server and the peer-to-peer paradigms and by implementing all the interactions among the processes of a system through the exchange of a kind of message that allows the implementation of a large set of...

In this paper, we present a software framework, called HDS (Heterogeneous Distributed System), that tries to simplify the realization of distributed applications and, in particular, of multi-agent systems, by: i) abstracting the use of different technologies for the realization of distributed applications on networks of heterogeneous devices connected through a set of different communication tr...

This paper describes how named entity (NE) classes can be used to improve broad coverage surface realization with the OpenCCG realizer. Our experiments indicate that collapsing certain multi-word NEs and interpolating a language model where NEs are replaced by their class labels yields the largest quality increase, with 4-grams adding a small additional boost. Substantial further benefit is obt...

The paper describes a new conversation management approach which may apply to a class of mixed initiative information seeking applications. It employs an application-independent conversation model inspired by the conversation theory of Grosz and Sidner [1]. Based on the model, we design a multi-layer conversation manager which employs instance-based learning (IBL) to determine conversation plan...

In this article, we introduce the approach to the realization of ontogenetic development and fault tolerance that will be implemented in the POEtic tissue, a novel reconfigurable digital circuit dedicated to the realization of bio-inspired systems. The modelization in electronic hardware of the developmental process of multi-cellular biological organisms is an approach that could become extreme...