Method and Apparatus for Data Processing, and Method and Apparatus for Diagnosis

摘要

There are provided a method and an apparatus for data processing and a method and an apparatus which are able to precisely diagnose each parameter of an object, such as a machine, capable of operating in a plurality of operation modes. Detection means 1 a- 1 d detect a multiplicity of normal data sets, each of which includes values of n parameters, for each of the operation modes; Self-Organizing Map creating means 2 creates a SOM for each operation mode, using the normal data sets; abnormal data creating means 7 creates abnormal data sets representing virtual abnormal states by modifying the values of the n parameters of each of the multiple normal data sets so that the abnormal data sets as many as the number of deviation vectors are created for each of the multiple normal data sets; and working mode proportion calculating means 8 creates abnormal operation mode proportion vectors by selecting a self-organizing map which has the highest similarity degree to each of the abnormal data sets from the self-organizing maps created in said step of creating self-organizing maps.