Device for and method of measuring similarity between sets

摘要

The present invention is a device for and method of measuring similarity between sets using a union block, three function blocks, an adder, a subtractor, and a divider. The first set is fed into the first function block and the first input of the union block. The second set is fed into the second function block and the second input of the union block. The output of the union block is fed into the input of the third function block. The outputs of the first and second function block feed into the adder. The output of the adder and the output of the third function block feed into the subtractor. The output of the subtractor feeds into the input of the divider.

主权项

1. A device for measuring similarity between a first set of items and a second set of items, comprising:
a) a union block for performing a union function, having a first input for receiving the first set of items, a second input for receiving the second set of items, and having an output; b) a first function block for performing a user-definable non-linear function, having a first input connected to said first input of said union block, having a second input for receiving a dictionary of terms, and having an output; c) a second function block for performing the user-definable non-linear function, having a first input connected to said second input of said union block, having a second input connected to said second input of said first function block, and having an output; d) a third function block for performing the user-definable non-linear function, having a first input connected to said output of said union block, having a second input connected to said second input of said first function block, and having an output; e) an adder, having a first input connected to said output of said first function block, having a second input connected to said output of said second function block, and having an output; f) a subtractor, having a first input connected to said output of said third function block, having a second input connected to said output of said adder, and having an output; and g) a divider, having a first input connected to said output of said third function block, having a second input connected to said output of said subtractor, and having an output.