关键词: 铁路超限超重货物, 装载加固, 可拓基元模型, 实例推理, 相似度

Abstract: Loading and reinforcement decision problem on railway out-of-gauge and enhanced-load goods with large, big, super heavy and costly features is a typical semi-structured problem because of lots of influence factors and few factors are expressed quantitatively. A reasonable extension and case-based reasoning technique for loading and reinforcement decision problem is thus vital for improving secure loading level and transport quality. Combining with features and decision factors about such problem, and with extension and basic element and also case-based reasoning technique, extension and basic element models for case-based reasoning data block and rules one are designed. Characteristics of the extension case attributes are analyzed and calculating formulas for local and global similarities among different attributes and cases are designed. An extension and case-based reasoning algorithm for such problem is further put forward to achieve its solution for new cases to be solved. The instance shows that such extension and case-based reasoning method put forward in the paper can make reasonable and secure loading and reinforcement arrangement and also solve the loading and reinforcement decision problem on railway out-of-gauge and enhanced-load goods effectively.

Key words: railway out-of-gauge and enhanced-load goods, loading and reinforcement, extension and basic element model, case-based reasoning, similarity