Patent Document ID: 8510249
Application ID: 13063231

Base Claim:
1. An information analysis apparatus for performing an analysis on text information to determine whether or not the text information corresponds to target information, comprising: a storage device that stores the text information; a density estimation unit that estimates, in units of analysis each composed of a plurality of sentences of the text information, a density indicating a degree to which each unit of analysis contains the target information; and a determination unit that obtains an evaluation value indicating a degree to which each sentence included in each unit of analysis corresponds to the target information from the estimated density of the unit of analysis, and determines whether or not the sentence is the target information based on the evaluation value.

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Claim 2:
2. The information analysis apparatus according to claim 1 , further comprising: a unit-of-analysis generation unit that generates a plurality of the units of analysis from the text information, wherein the density estimation unit estimates the density for each unit of analysis generated by the unit-of-analysis generation unit.