Computer system and method for searching for bias removal method

A method for searching for a bias removal method for generating an AI model that satisfies a business requirement, the method being executed by a computer system,

• the computer system including a processor and a storage device connected to the processor,
• the storage device storing
• a data set including a plurality of pieces of training data each including a plurality of features and an objective variable,
• business requirement definition information for storing a plurality of pieces of business requirement data each defining a business requirement in a business using an AI model, and
• bias removal method management information for storing bias removal method data in which the feature of a bias removal target and a bias removal method for removing a bias of the feature are associated,
• the plurality of pieces of business requirement data include a plurality of pieces of first business requirement data including the feature of the bias removal target, a calculation method of a first index for evaluating a degree of bias removal, and a first business requirement defined by using the first index, and second business requirement data including a second index for evaluating a prediction accuracy of the AI model and a second business requirement defined by using the second index,
• the method comprising:
• a first step of receiving, by the processor, an AI generation request including information for model specifying at least one of the first business requirement and the second business requirement;
• a second step of executing, by the processor, search processing of searching for the bias removal method used to generate an AI model that satisfies the first business requirement and the second business requirement specified in the AI model generation request by using the data set, the business requirement definition information, and the bias removal method management information;
• and
• a third step of generating and outputting, by the processor, a report including information on the used bias removal method when the AI model that satisfies the first business requirement and the second business requirement specified in the AI model generation request is generated, wherein
• the second step includes a step of repeatedly executing, by the processor, processing of selecting at least one of the bias removal methods and processing of executing learning processing of generating the AI model by using the selected bias removal method until the first business requirement and the second business requirement specified in the AI model generation request are satisfied.