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

2 2008

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Mooring the Ferry m/f “Gryf” in Extreme Hydro and Meteorological Conditions

Kowalski A.

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

2008

Vol. 2, no. 4

383--386

The paper introduces some possible manoeuvres of the ferry „Gryf” in difficult hydro and meteorological conditions, in which standard methods do not permit execution of mooring and unmooring. Brief characteristics of the ferry m/f „Gryf” have been presented. Typical and most often met extreme hydro and meteorological conditions have been described for ?winouj?cie and Ystad. Examplary techniques of manoeuvres have also been presented for both ports of operation.

Building of CBR’s DB Using Ontology for a Collision Avoidance System

Park G. K., Kim W. G., Benedictos J.

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

2008

Vol. 2, no. 4

369--374

We have proposed Fuzzy-CBR to find a solution from past knowledge retrieved from the database and adapted to the new situation. However, ontology is needed in identifying concepts, relations and instances that are involved in a situation in order to improve and facilitate the efficient retrieval of similar cases from the CBR database. This paper proposes the way to apply ontology for identifying the concepts involved in a new case, used as inputs, for ship collision avoidance support system and in solving for similarity through document articulation and abstraction levels. These ontologies will be used to build a conceptual model of a manoeuvring situation.