To provide a model creation apparatus and a data generation apparatus which are configured to generate time-series data with a minute change reproduced therein in generating the time-series data from frequency information by using a machine learning model.SOLUTION: A model creation apparatus includes: a time-series data acquisition unit which acquires, as learning time-series data, time-series data on a traveling vehicle measured during travel of the vehicle; learning frequency data acquisition unit which acquires learning frequency data indicating an occurrence frequency distribution regarding the learning time-series data; a model creation unit which creates a machine learning model which performs machine learning by using the learning time-series data and the learning frequency data corresponding thereto, as training data, and using weighting processing based on a difference, so as to output generative time-series data in accordance with an input of frequency data; and a high frequency component addition unit which extracts high frequency components to be included in the generative time-series data from the learning time-series data, and adds the extracted high frequency components to the generative time-series data.SELECTED DRAWING: Figure 7

    【課題】機械学習モデルを用いて頻度情報から時系列データを生成する場合に、細かな変化が再現された時系列データを生成することができる、モデル作成装置及びデータ生成装置を提供すること。【解決手段】モデル作成装置は、車両が走行中に測定された車両の走行中の時系列データを学習用時系列データとして取得する時系列データ取得部と、学習用時系列データに関する発生頻度分布を示す学習用頻度データを取得する学習用頻度データ取得部と、学習用時系列データと、それに対応する学習用頻度データと、を教師データとして差分に基づく重み付け処理を用いて機械学習することにより、頻度データが入力されたことに応じて生成時系列データを出力する機械学習モデルを作成するモデル作成部と、学習用時系列データから生成時系列データに含まれるべき高周波成分を抽出し、抽出した高周波成分を生成時系列データに付加する高周波成分付加部と、を備える。【選択図】図7


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    Title :

    MODEL CREATION APPARATUS, DATA GENERATION APPARATUS, MODEL CREATION METHOD, AND DATA GENERATION METHOD


    Additional title:

    モデル作成装置、データ生成装置、モデル作成方法及びデータ生成方法


    Contributors:

    Publication date :

    2023-10-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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