Wyniki wyszukiwania - BazTech

1

Evolutionary Sets of Safe Ship Trajectories: Evaluation of Individuals

Szlapczyński R., Szlapczyńska J.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

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2012

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Vol. 6, no. 3

345--353

EN

The paper presents a description of the evaluation phase of the Evolutionary Sets of Safe Ship Trajectories method. In general, the Evolutionary Sets of Safe Ship Trajectories method combines some of the assumptions of game theory with evolutionary programming and finds an optimal set of cooperating trajectories of all ships involved in an encounter situation. While developing a new version of this method, the authors decided to use real maps instead of a simplified polygon modelling and also to focus on better handling of COLREGS. The upgrade to the method enforced redesigning the evaluation phase of the evolutionary process. The new evaluation is thoroughly described and it is shown how evaluation affects final solutions returned by the method.

2

Evolutionary Sets of Safe Ship Trajectories: the method's development and selected research results

Szlapczyński R., Szlapczyńska J.

Archives of Transport

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2011

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Vol. 23, iss. 2

223-238

EN

The Evolutionary Sets of Safe Ship Trajectories is a method solving ship encounter situations. The method combines evolutionary approach to planning ship trajectory with some of the assumption of game theory. For given positions and motion parameters the method finds a near optimal set of safe trajectories of all ships involved in an encounter. This paper presents framework of the method and its development. Additionally, selected method's results for two multi-ship encounters are provided.

PL

Metoda ewolucyjnych zbiorów bezpiecznych trajektorii statków służy rozwiązywaniu sytuacji spotkań wielu statków. Metoda ta łączy podejście ewolucyjne w planowaniu trajektorii z częścią założeń pochodzących z teorii gier. Dla znanych pozycji statków oraz ich parametrów ruchu metoda znajduje bliski optymalnemu, zbiór trajektorii dla wszystkich statków biorących udział w spotkaniu. W tym artykule zaprezentowano opis metody i jej rozwoju. Dodatkowo artykuł zawiera wybrane wyniki badań dla złożonych scenariuszy testowych.

3

An analysis of MultiOobjective Evolutionary techniques applicable to weather routing

Szlapczyńska J., Smierzchalski R.

Prace Naukowe Politechniki Warszawskiej. Elektronika

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2007

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z. 160

277-284

EN

This document describes possible applicationof MultiObjective Evolutionary Algorithms (MOEAs) to a problem of finding the most sutiable vesel route taking into account changeable weather conditions and several navigational constraints. The paper includes a review of MOEA-specific techniques and presents a proposal of their utilizaytion in a weather routing evolutionary algorithm.