Induction of decision rules for the collision regulations

The article presents problems of the transformation of knowledge codified in the COLREGs into a form which permits its use in navigational information systems. The need to develop a knowledge base in this field and implement it in an expert system supporting navigational decisions onboard ships is rational. It is a well-known fact that navigational information systems greatly support navigation and increase its safety. Examples of regulations (COLREGs rule 13 – overtaking) are interpreted, then presented as decision tables in order to check whether decision rule induction is possible from such data. Selected algorithms of rule induction are briefly described and then tested. The experiments are compared and conclusions are drawn.