Patent ID: 8750628
Filing Date: 2014-06-10
Classification: G06K,G06N

Abstract:
1. A pattern recognizer comprising: a loss calculation unit that calculates a loss of a feature vector for each class, the feature vector indicating a feature of data belonging to the class; a loss difference calculation unit that calculates a total sum of differences of losses between the classes on a basis of the loss calculated for each class; a recognition dictionary creation unit that creates a recognition dictionary on a basis of a total sum of losses calculated for the classes by the loss calculation unit and the total sum of loss differences between the classes; and a pattern classification unit that classifies a pattern of data using the recognition dictionary, wherein the recognition dictionary creation unit corrects, on a basis of an input feature vector, a recognition dictionary so as to minimize a sum of the total sum of losses for the classes calculated by the loss calculation unit and the total sum of loss differences between the classes calculated by the loss difference calculation unit, and the pattern classification unit classifies a pattern of data using the corrected recognition dictionary.