A ship equipment supportability assessment method based on evidence reasoning

Abstract

The invention discloses a ship equipment supportability assessment method based on evidence reasoning, and belongs to the technical field of ship equipment supportability assessment. The method comprises the following steps: firstly, carrying out importance sorting on ship equipment supportability to-be-selected evaluation parameters by utilizing an analytic hierarchy process, and establishing a ship equipment supportability evaluation index set; Then constructing a data fusion model based on evidence reasoning, establishing an identification framework and basic credibility, giving an evidenceconflict judgment basis, and synthesizing ship equipment supportability evaluation indexes into a credibility function; And finally, on the basis of the reliability function, evaluating the supportability of ship equipment. According to the method, the supportability evaluation index can be accurately extracted, the scoring error and cognitive uncertainty of an expert group can be effectively reduced, and the supportability of ship equipment can be quickly and accurately evaluated.

Description

technical field [0001] The invention belongs to the technical field of ship equipment support evaluation, and in particular relates to a ship equipment support evaluation method based on evidence reasoning, which is used for use management and evaluation decision-making of ship equipment. Background technique [0002] Ship equipment is a complex system and an important component of the maritime military power system. It must be timely and powerful in equipment support activities in order to exert its due combat effectiveness and ensure the smooth completion of diversified and normalized military tasks. The supportability of ship equipment means that the design characteristics and support resources of ship equipment can meet the requirements of peacetime combat readiness and wartime use. As the types and requirements of the missions performed by ship equipment continue to change, the difficulty of assessing the support of ship equipment is also increasing. [0003] The tradi...

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Problems solved by technology

[0004] Although the above method can reflect the support of ship equipment to a certain extent, there are still some defects and the specific performance is as follows: first, for different types and models of ships, the evaluation index system established entirely based on the eight elements of support is too complex, The second-level indicators of the eight elements of support can reach more than dozens. If all the support indicators are introduced into the evaluation analysis, the evaluation process may be cumbersome and complicated; Some of the weakly correlated assessment indicators for support are invalid indicators, and if weakly correlated or invalid indicators are introduced into the assessment analysis, the assessment results may be distorted; third, the eight elements of ship equipment support mainly rely on expert experience to evaluate the indicators. Comprehensive evaluation, but due to the cognitive uncertainty of expert scoring, evaluation and analysis based solely on expert experience may lead to a lack of objectivity in evaluation results, and expert scoring with different opinions may lead to evaluation failure, so how to effectively use expert scoring data and correct Dealing with contradictory expert opinions is still a technical problem to be solved in the assessment of ship equipment support

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