Patent ID: 8521674
Filing Date: 2013-08-27
Classification: G06K

Abstract:
1. An information analysis apparatus comprising: a time-series pattern identification unit that identifies a time-series pattern on time-series data from the time-series data including sets of at least an affirmation level on a certain proposition and a time stamp corresponding to the affirmation level, based on at least one of indicators of a temporal variation in a total number of data of the time-series data for each time interval, a temporal variation of a mean of an affirmation level for each time interval, and a temporal variation of a variance of an affirmation level for each time interval; and an effective period identification unit that identifies an effective period of the time-series data on the proposition, based on the identified time-series pattern, wherein the proposition is a statement that expresses an opinion, the affirmation level is a level of opinions stating that the certain proposition is true, and each of the time-series pattern identification unit and the effective period identification unit is a hardware device.