Classification of navigational and fishing situations by the ship's specialist

Operations of synthesis and analysis of the state of the navigational or fishing situation are performed by a shipboard specialist who carrying watch, he ought to take into account a large number of contradictory factors. The analysis uses data obtained with the help of a circular observing system and technical means of navigation. The process of performing these operations by a specialist is presented in the form of a sequence of phase transitions; variants of classification of situations are studied taking into account the structure of preferences of the person grouping navigation and fishing situations in ternary terms. This classification can be generalized and used in the software product by expert systems that provide current safety of navigation and fishing. The mathematical model of the classifying function is developed that takes into account the preferences structure of the person synthesizing and analyzing navigational and fishing situations and is able to determine the state of the situation so that in the presence of one dangerous situation, another situation - in principle not dangerous - is not accepted as a dangerous one...