Patent ID: 7200584

Claim:
An apparatus for extracting a time series pattern, comprising: a data storage unit configured to electronically store a first time series data including a plurality of element sets, each element set including numeric data and text data; a numeric key concept extraction unit configured to extract a numeric key concept of the numeric data from each element set of the first time series data, and assign a grade to the numeric key concept, the grade representing a degree that the numeric data belongs to the numeric key concept; a text key concept extraction unit configured to extract a text key concept of the text data from each element set of the first time series data; a generation unit configured to generate a second time series data including a plurality of element sets, each element set including the numeric key concept, the grade, and the text key concept from the respective element set in the first time series data; a calculation unit configured to calculate a support of a combination of each numeric key concept and each text key concept from the plurality of element sets of the second time series data, the support being based on the grade of each element set including the numeric key concept and the text key concept matched with the combination; a time series pattern extraction unit configured to extract a frequent time series pattern from the second time series data by referring to the support, the frequent time series pattern being at least one combination of a numeric key concept and a text key concept having the support above a threshold; and a time series pattern storage unit configured to electronically store the frequent time series pattern as an analysis result of the first time series data.