Patent ID: 8117025

Claim:
A computer-implemented method comprising: receiving, by a computer processor, content of a first text passage and content of a second text passage; based on the received content of the first text passage and content of the second text passage, automatically generating, by the computer processor, data classifying a number of noun phrases in the first text passage into a first set of phrases and data classifying a number of noun phrases of the second text passage into a second set of phrases; determining, by the computer processor, a set of synonyms for the noun phrases of the first set of phrases; removing noise words from the first set of phrases; after the removing, determining a similarity between a noun phrase from the first text passage and a noun phrase from the second text passage, including determining the similarity based on the synonyms and further based on remaining noun phrases of the first set of phrases and the second set of phrases; determining another similarity between the first text passage and the second text passage based on the determined similarity between the noun phrase from the first text passage and the noun phrase from the second text passage; and storing in a computer memory information about the determined other similarity between the first text passage and the second text passage.