Abstract: A storage medium storing a machine learning program that causes a computer to execute a process, the process includes specifying first distribution of a feature of data calculated by a second machine learning model; determining whether or not output accuracy of the second machine learning model decreases based on the first distribution; when the determining determines that the output accuracy decreases, selecting, from the plurality of machine learning models, a fourth machine learning model that has second distribution of a feature of data input that is the most similar with third distribution of a feature of the training data among the plurality of the machine learning model, and generating the third machine learning model by updating a parameter of the fourth machine learning model based on a certain piece of the training data labeled based on the feature of the data.