Abstract: A computer system, comprises a collection system configured to collect business data including values of a plurality of items from a plurality of business systems and a plurality of data processing systems. The collection system is coupled to an AI processing system configured to execute, through use of encrypted business data, training processing of generating a machine learning model. Each of the plurality of data processing systems obtains the business data from one of the plurality of business systems; encrypts a value of any one of the plurality of items of the business data through use of an irreversible encryption algorithm to generate the encrypted business data; and transmit the encrypted business data to the collection system. The collection system transmits the encrypted business data to the AI processing system.

Abstract: To estimate the communication quality of the wireless section in real-time, it is provided a communication management apparatus that manages traffic of a wireless communication system that includes a wireless base station communicating with a terminal, and a gateway apparatus coupled to the wireless base station, the communication management apparatus comprising a processor that executes a program and a storage unit accessed by the processor. The communication management apparatus calculates an estimated value of wireless section throughput between the wireless base station and the terminal using communication quality information obtained from data sent and received by the gateway apparatus.

Abstract: It is an object of this invention to protect a copyright for each of subcontents of a digital content. A computer system, comprising: a content providing server for providing a user terminal with a digital content obtained through digitization; and a copyright management server for managing copyright information on the digital content, wherein the content providing server is configured to: obtain copyright information set for each of subcontents included in the digital content from the copyright management server; associate the obtained copyright information with the each of the subcontents, and add the copyright information to the digital content; and transmit the digital content to which the copyright information is added to the user terminal.