INFERENCE METHOD AND INFERENCE SYSTEM FOR FAULT RESTORATION TIME BASED ON EXAMPLE

摘要

PURPOSE:To provide an inference result (precise time until fault restoration) securing more than prescribed quantity of reliablity to a user at an early stage when a fault occurs. CONSTITUTION:When information on the fault is given by leaving time intervals in an inference system, information on the fault are accumulated (1001-1003), quantity calculated based on whole accumulated information (quantity by which the candidates of a fault cause are reduced by obtaining the information and quantity calculated from the rise quantity of prediction precision accompanied by the reduction of the candidates, for example) is evaluated (1004) from a viewpoint to what extent the content of the subsequent fault corresponding work can precisely be prediced. When the information quantity satifies a previously decided value (1005), an example base 310 is retrieved (1006) and fault restoration time is inferred (1007 and 1008).