Provided is an anomaly detection device capable of acquiring a degree of anomaly required for anomaly detection even when a feature pattern of time series data changes over time. The anomaly detection device of the present invention is a device that detects the degree of anomaly in the time series data. The anomaly detection device includes a first acquisition unit, a prediction unit, and an anomaly degree acquisition unit. The first acquisition unit acquires, from a first section that is a partial section of the time series data, a dynamic feature pattern of the first section. The prediction unit predicts data of a second section that is a partial section of the time series data later than the first section by using the feature pattern to obtain predicted second section data. The anomaly degree acquisition unit acquires the degree of anomaly based on a difference between the predicted second section data and actual data of the second section in the time series data.


    Access

    Download


    Export, share and cite



    Title :

    ABNORMALITY ESTIMATING APPARATUS, ABNORMALITY DETECTION APPARATUS, ABNORMALITY DETECTION METHOD, AND ABNORMALITY DETECTION PROGRAM


    Contributors:
    ITO HIROAKI (author) / MURATA SHIN (author)

    Publication date :

    2022-09-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



    ROAD ABNORMALITY DETECTION APPARATUS, ROAD ABNORMALITY DETECTION METHOD AND ROAD ABNORMALITY DETECTION PROGRAM

    TAKEMURA KAZUAKI / MATSUSHITA MAKOTO / SUGIMURA TAE et al. | European Patent Office | 2024

    Free access

    Road abnormality detection apparatus, road abnormality detection method and road abnormality detection program

    TAKEMURA KAZUAKI / MATSUSHITA MAKOTO / SUGIMURA TAE et al. | European Patent Office | 2023

    Free access

    ABNORMALITY DETECTION APPARATUS, ABNORMALITY DETECTION METHOD, AND ABNORMALITY DETECTION SYSTEM

    INABA CHIHIRO / ENDO TOSHIKI / ADACHI EISUKE et al. | European Patent Office | 2019

    Free access

    ABNORMALITY DETECTION APPARATUS, ABNORMALITY DETECTION METHOD, AND ABNORMALITY DETECTION SYSTEM

    INABA CHIHIRO / ENDO TOSHIKI / ADACHI EISUKE et al. | European Patent Office | 2019

    Free access

    Abnormality detection apparatus, abnormality detection method, and abnormality detection system

    INABA CHIHIRO / ENDO TOSHIKI / ADACHI EISUKE et al. | European Patent Office | 2022

    Free access