| 摘要 |
The present invention relates to an information processing unit, an information processing method, and a program that can allow two-class classification to be correctly performed based on the outputs from two or more classifiers. The classifier 21i (i=1 to n) substitutes an input vector x into a classification function fi (x) to output a scalar value yi. The mapper 22i substitutes the scalar value yi provided from the classifier 21i into a mapping function gi(yi) found through a learning process described later to convert the scalar value yi from the classifier 21i to a class existence probability pi. The comparator 23 compares the class existence probabilities p1 to pn provided from the mapper 221 to 22n, respectively, with a predetermined threshold to classify which of two classes the input data belongs to, and outputs the classification result in the form of value “1” or “−1” The invention can be applied to, for example, an information processing unit for performing two-class classification.
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