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    LEARNING DEVICE, LEARNING METHOD, RECORDING MEDIUM FOR LEARNING DEVICE, INFERENCE DEVICE, INFERENCE METHOD, AND RECORDING MEDIUM FOR INFERENCE DEVICE
    2.
    发明公开
    LEARNING DEVICE, LEARNING METHOD, RECORDING MEDIUM FOR LEARNING DEVICE, INFERENCE DEVICE, INFERENCE METHOD, AND RECORDING MEDIUM FOR INFERENCE DEVICE 审中-公开

    公开(公告)号：US20230142925A1

    公开(公告)日：2023-05-11

    申请号：US17918409

    申请日：2020-04-27

    Applicant: NEC Corporation

    Inventor： Shuhei Yoshida

    IPC: G06N20/00 ,  G06N5/04

    CPC classification number: G06N20/00 ,  G06N5/04

    Abstract: A recognition loss calculation unit of a learning device calculates a recognition loss using a recognition result with respect to recognition object data in a dataset for learning that is a set of pairs of the recognition object data and a weak label, a mixing matrix calculated based on the dataset for learning, and a weak label attached to the recognition object data. The recognition loss calculation unit includes a conversion unit that converts the recognition result into a conjugate vector, a mixing matrix product calculation unit that calculates a product of the conjugate vector and the mixing matrix, a normalization term calculation unit that calculates a normalization term from the conjugate vector, and a total sum calculation unit.

    Wireless power supply device
    5.
    发明授权
    Wireless power supply device 有权

    公开(公告)号：US10944292B2

    公开(公告)日：2021-03-09

    申请号：US16331029

    申请日：2017-09-11

    Applicant: NEC CORPORATION

    Inventor： Shuhei Yoshida ,  Masahiro Tanomura ,  Hiromitsu Tahara

    IPC: H02J50/12 ,  H01F38/14 ,  H02J50/40 ,  H01F27/28 ,  B60L53/12 ,  B63G8/00

    Abstract: In order to reduce a power transmission antenna and power receiving antenna of a wireless power supply device for supplying power underwater to a size suitable for an underwater mobile body and sensor, this underwater wireless power supply device 101 wirelessly transmits energy by resonating at a frequency determined by the impedance of a power transmission antenna 103 that transmits energy wirelessly in a good conductor medium 102, the impedance of a power receiving antenna 104 which receives energy transmitted from the power transmission antenna 103, and the impedance of the good conductor medium 102. The power transmission antenna 103 and the power receiving antenna 104 have the multiple antenna coils 105, 106, and at least one dielectric 107, 108 arranged between the multiple antenna coils 105, 106, and the multiple antenna coils 105, 106 each has multiple laminated coils 109.

    LEARNING DEVICE, LEARNING METHOD, AND RECORDING MEDIUM
    6.
    发明公开
    LEARNING DEVICE, LEARNING METHOD, AND RECORDING MEDIUM 审中-公开

    公开(公告)号：US20240362543A1

    公开(公告)日：2024-10-31

    申请号：US18690289

    申请日：2021-09-27

    Applicant: NEC Corporation

    Inventor： Shuhei Yoshida

    IPC: G06N20/00

    CPC classification number: G06N20/00

    Abstract: In a learning device, an inference means performs an inference with respect to training data using an inference model, and outputs a class score. A weight calculation means calculates each weight using a weight function which rapidly increases faster than a linear function for the class score that is over-estimated or under-estimated, based on output the class score. A weight sum calculation means calculates a total of weights over a mini-batch included in a predetermined number of training data. A regularization term calculation means calculates a regularization term by applying a rescale function which is a monotonically increasing function gradually increasing more than a linear function, to the regularization term. An optimization means optimizes the inference model using a total loss including the regularization term.

    Wireless power supply device and wireless power supply method
    7.
    发明授权
    Wireless power supply device and wireless power supply method 有权

    公开(公告)号：US10951066B2

    公开(公告)日：2021-03-16

    申请号：US16332254

    申请日：2017-09-11

    Applicant: NEC CORPORATION

    Inventor： Shuhei Yoshida ,  Masahiro Tanomura

    IPC: H02J50/12 ,  H02J50/40 ,  B63G8/00 ,  H03H7/40

    Abstract: In order to facilitate impedance matching even when using a magnetic field antenna for power transmission in a medium, this underwater wireless power supply device 101 wirelessly transmits energy by resonating at a frequency determined by the impedance of a power transmission antenna 103, the impedance of a power receiving antenna 104, and the impedance of a good conductor medium 102. The power transmission antenna 103 and the power receiving antenna 104 have multiple antenna coils 1061, and multiple resonant antenna units 1051 to 1054 having at least one dielectric 1071 arranged between the multiple antenna coils 1061, and, at least one of the multiple resonant antenna units 1051 to 1054 is provided with a load adjustment mechanism 1081 for adjusting the load.

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