APPARATUS AND METHOD IMPROVING PERFORMANCE OF MATCHING SYSTEM USING METRIC FUNCTION

摘要

PURPOSE: A device and method for improving a performance of a matching system using a distance metric are provided to learn a distance based on massive training data, thereby improving the performance of the matching system. CONSTITUTION: A device for improving a performance of a matching system using a distance metric includes a training data collecting part (110) and a training data processing part (120). The training data collecting part collects training data such as contents labeled with information about the purchase and preference of a user. The training data processing part form pairs of the similar training data and pairs of the different training data according to the labeled information about the purchase and watching, and then calculates the number of related times due to the purchase and preference of the user about the pairs. The training data processing part classifies the pairs formed by the number of the related times into semi-coupled pairs or coupled pairs, calculates a weighted value based on the number of the related times corresponding to the coupled pairs, provides the weighted value to the coupled pairs, and then processes the training data including the contents. [Reference numerals] (110) Training data collecting part; (120) Training data processing part; (130) Distance and form determining unit; (140) Training unit; (AA) Learned distance function