LEARNER ESTIMATING DEVICE, LEARNER ESTIMATION METHOD, RISK EVALUATION DEVICE, RISK EVALUATION METHOD, AND PROGRAM

摘要

The present invention effectively estimates a learner for classification. This learner estimating device assumes, as an attack target, a learner for classification tasks that outputs the type of inputted observation data as label data, the learner estimating device comprising a recording unit, an inquiry unit, a capturing unit, and a learning unit. The recording unit keeps a record of a plurality of predetermined observation data. The inquiry unit inquires of the learner that is the attack target for each of the observation data recorded in the recording unit, acquires label data, and records the acquired label data in the recording unit in association with the observation data. The capturing unit inputs the observation data recorded in the recording unit and the label data associated with the observation data to the learning unit. The learning unit is characterized by the use of an activation function that outputs an ambiguous value predetermined in a process for establishing the predictive result of classification, the learning unit learning through use of the inputted observation data and label data.