Patent ID: 8910037

Claim:
A computer-implemented method of generating a signature for a page of text, wherein the signature serves as an identifier of the text page, comprising: determining a position for each of a plurality of words in the text page, wherein the position corresponding to each word is an individual point location; for a first word of the plurality of words in the text page, determining a relative position for each of a plurality of second words in the text page, wherein the relative position corresponding to each of the second words is relative to the position of the first word, wherein determining the relative position for each of the second words is based upon an angle between the first word position and the second word position and a distance between the first word position and the second word position; generating a signature value that describes the relative positions of the second words; and storing the signature value on a non-transitory computer-readable storage medium as the signature value for the page of text.