Research On Knowledge Representation Hybrid Application In PLA Political Work Oriented Expert System

The key of deepening the artificial intelligence research and promoting the level of intellectualization auxiliary decision is to withdraw and mine expert knowledge in this field and construct political work expert system. To transform the political work expert knowledge to computer expert system knowledge, it is necessary to seek the representation pattern of computer knowledge, which suits these expert knowledge's characteristics, and effectively transforms this domain's expert knowledge to the knowledge which the computer expert system may distinguish, gain and process.The article uses for reference from the knowledge representation advanced theory in Chinese and foreign, starting with the basic concept of knowledge representation , summarizes four characteristics of the PLA political work expert knowledge: structural feature, empirical feature, cluster feature, hierarchical feature; summarizes six types of the PLA political work expert knowledge:conceptual knowledge,regural knowledge, procedural knowledge,structural knowledge,association knowledge,situation knowledge.The thesis discusses the main ways of transforming this domain expert knowledge to the expert system knowledge library knowledge. After comparison of the two knowledge expressed patterns: combination application and hybrid application.we get the conclusion that the hybrid application pattern is better, which might be regarded as a multi-level and complex compound of knowledge representation, and might be divided into knowledge representation technology level, knowledge representation semantics level, knowledge representation esthetic level.The thesis elaborates six types principles and"five step operation"procedure of the hybrid application of political work expert system knowledge representation. The six types principles conclude: face the system principle, knowledge main principle, fuse one system principle, easy interaction and input principle, the function and the form parallel principle, the science and the artistic union principle primarily.The five step operation procedure conclude: the definite political work event solves the goal request, the search to favor the knowledge group which, the discrimination different knowledge group carrier pattern, the choice refinement political work event's best solution, the determination knowledge representation best utilization pattern the event solves.The thesis, taking the construction of wartime political work expert system as an example, establishes its forward reasoning control policy model, explants and shows the hybrid application's essential methods of the knowledge representation, and provides theory and the technical support for the deepening political work domain artificial intelligence research, and the construction of army political work expert system based on the knowledge gain and the processing.