DATA PROCESSOR, ITS METHOD AND STORAGE MEDIUM STORING DATA PROCESSING PROGRAM

摘要

PROBLEM TO BE SOLVED: To quickly output the prescribed number of candidate data similar to an inquiring vector from the data of a data base. SOLUTION: A data processor for extracting the prescribed number of data having high similarity based on an inner product with an inquiring vector from a set of vectory type data stored in a data base 103 is provided with a list preparing part 101 for preparing a data list arranging data stored in the data base 103 in the descending order of the intensity of one component of a vector in each component and a candidate output part 102 for inputting a measuring tensor for defining the inquiring vector and the inner product, adding the points of all components each of which is based on a value obtained by subtracting the order of the list of each component from the prescribed number and the component of the inquiring vector related to the component of the inner product and outputting the prescribed number of data based on the total points.