Information processing apparatus, information processing system, and information processing method

An information processing method by an information processing server that executes machine learning by a plurality of processing layers, wherein

• the information processing server includes a processor and a memory,
• the memory includes a normal region and an isolation region isolated from the normal region,
• the normal region holds a parameter of the machine learning, and
• the isolation region holds input data to an i-th layer included in the plurality of processing layers and a parameter of the machine learning,
• the information processing method comprising:
• executing, by the processor, semantic determination processing of determining whether there is a risk in executing processing of the i-th layer for the input data in the normal region on a basis of a content of secret information of the input data in the isolation region;
• executing, by the processor, the processing of the i-th layer for the input data on a basis of the parameter held by the isolation region in the isolation region when determining that there is the risk;
• outputting, by the processor, the input data to the normal region, and executes the processing of the i-th layer for the input data on a basis of the parameter held by the normal region in the normal region when determining that there is no risk;
• executing quantitative determination processing of determining which of a processing time in a case of executing processing of the i-th layer for the input data in the isolation region or a processing time in a case of executing processing of the i-th layer for the input data in the normal region is shorter, on a basis of an input/output data size of the input data and the parameter held in the isolation region, in the isolation region;
• when determining, in the quantitative determination processing, that the processing time is shorter in the case of executing the processing of the i-th layer for the input data in the isolation region, executing the processing of the i-th layer for the input data on a basis of the parameter held by the isolation region in the isolation region without executing the semantic determination processing;
• and
• when determining, in the quantitative determination processing, that the processing time is shorter in the case of executing the processing of the i-th layer for the input data in the normal region, executing the semantic determination processing.