ATTRIBUTE-CONVERTING DEVICE, ATTRIBUTE CONVERSION METHOD, LEARNING DEVICE, AND RECORDING MEDIUM

摘要

An attribute-converting device and the like that provide good attributes quickly are disclosed. Said attribute-converting device (105) comprises a first attribute generation unit (101), a first attribute selection unit (102), a second attribute generation unit (103), and a second attribute selection unit (104). The first attribute generation unit (101) accepts one or more first attributes and generates one or more second attributes that represent the results of applying a unary function to the respective first attributes. The first attribute selection unit (102) computes the correlations between the first and second attributes and a target variable that includes elements associated with elements included in the first attributes and selects one or more third attributes that represent highly-correlated attributes. The second attribute generation unit (103) generates one or more fourth attributes that represent the results of applying a multi-operand function to the third attributes. The second attribute selection unit (104) computes the correlations between the third and fourth attributes and the target variable and selects at least one fifth attribute that represents a highly-correlated attribute.