Oil spills require timely measures to eliminate the causes and neutralize the consequences. The use of a case-based reasoning is promising to develop specific technological solutions in order to eliminate oil spills. It becomes important to structure the description of possible situations and the formation of a representation of solutions. In this paper, the results of these tasks are presented. A structure is proposed for representing situations in oil product spills based on a situation tree, a description of the algorithm for situational decision-making using this structure is given, parameters for describing situations in oil product spills and presenting solutions are proposed. The situation tree allows you to form a representation of situations based on the analysis of various source information. This approach makes it possible to quickly clarify the parameters and select similar situations from the knowledge base, the solutions of which can be used in the current undesirable situation.

Keywords: case-based reasoning; decision making; oil spill, oil spill response, decision support, situation tree

The paper considers the implementation of the Case Base Reasoning method when managing a city infrastructure complex technological object. A method of formalizing the situation at a complex technological object using a matrix of states is presented. A method is proposed for determining the proximity of situations in the state space, taking into account the proximity of the states of each element of a complex technological object. The implementation of the proposed method when selecting a situation from the knowledge base allows avoiding collisions when two critically different situations with different solutions are selected.

Keywords: Case Based Reasoning, CBR, case retrieve, knowledge base, facility management, city infrastructure, Euclidean distance