Data analysis method for accelerating computer arithmetics and image identification system operating method

The invention relates to a digital data analysis method for accelerating computer arithmetics, a recommended system operating method and an image identification system operating method. In the invention, the digital data analysis method for accelerating computer arithmetics is used for solving the problem that when the prior traditional method is used for dividing a large number of objects, the arithmetic time is longer; and the digital data analysis method can be used for processing matrixes in any form without being limited by the symmetric matrix. The digital data analysis method for accelerating computer arithmetics is optimized by using the concepts of division and grouping of matrixes and matching the division of the singular matrix and the adjustment of the average column vectors, and thus, the arithmetic speed of a system can be greatly improved.