CONCEPTUAL SEQUENCE PATTERN EXTRACTION DEVICE AND PROGRAM, AND CONCEPTUAL SEQUENCE PATTERN EXTRACTION METHOD

摘要

PPROBLEM TO BE SOLVED: To extract a concept sequence pattern under the consideration of a conceptual hierarchy and time series from time series data. PSOLUTION: A conceptual sequence pattern extraction part 4 extracts the time series pattern of a concept to which an information element included in time series data belongs from the time series data based on conceptual hierarchy knowledge stored in a conceptual hierarchy knowledge storing part 3. The conceptual sequence pattern extracting part 4 calculates the support degree of the time series pattern in the time series data, and extracts a time series pattern whose support degree is not less than a threshold as a conceptual sequence pattern. In this case, the conceptual hierarchy knowledge is defined as information associating the information element with a concept positioned in its higher order. PCOPYRIGHT: (C)2005,JPO&NCIPI