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    FEDERATED LEARNING METHOD AND DEVICE USING DEVICE CLUSTERING
    1.
    发明公开
    FEDERATED LEARNING METHOD AND DEVICE USING DEVICE CLUSTERING 审中-公开

    公开(公告)号：US20240303505A1

    公开(公告)日：2024-09-12

    申请号：US18595389

    申请日：2024-03-04

    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

    Inventor： Young-Bae Ko ,  June-Pyo Jung

    IPC: G06N3/098

    CPC classification number: G06N3/098

    Abstract: Disclosed are a federated learning method and device using device clustering. The federated learning method includes obtaining an arbitrary client group including some clients as a result of performing clustering on a plurality of clients; determining one of the some clients as a leader client based on a centroid associated with the clustering, wherein the leader client receives data associated with at least one parameter of a pre-trained model from each of the some clients; determining at least one client among the some clients as a target client based on an amount of computing resources of the pre-trained model and a training loss of the pre-trained model; and receiving some data associated with at least one parameter of the model of the target client from the leader client, wherein the some data is included in the data.

    OBJECT LOCATION MEASUREMENT METHOD AND AUGMENTED REALITY SERVICE PROVIDING DEVICE USING THE SAME
    2.
    发明申请
    OBJECT LOCATION MEASUREMENT METHOD AND AUGMENTED REALITY SERVICE PROVIDING DEVICE USING THE SAME 有权

    公开(公告)号：US20210349175A1

    公开(公告)日：2021-11-11

    申请号：US17148696

    申请日：2021-01-14

    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

    Inventor： Young-Bae Ko ,  Hong Beom Choi

    IPC: G01S5/02 ,  G06T7/70 ,  G06T19/00

    Abstract: The present invention provides an augmented reality service providing device, including: a sensing unit to photograph an object and to measure a current position of a mobile terminal; a communication unit to measure a communication distance between the mobile terminal and the object; a control unit to control to repeat a plurality of times the measurement of the current position and the communication distance while the mobile terminal is moving; a calculation unit to calculate an estimated position of the object based on the current position and the communication distance measured repeatedly a plurality of times; and a display unit to display virtual information on the object on the estimated position of the object.

    SYSTEM AND METHOD FOR WIRELESS POSITIONING
    6.
    发明公开
    SYSTEM AND METHOD FOR WIRELESS POSITIONING 审中-公开

    公开(公告)号：US20240027571A1

    公开(公告)日：2024-01-25

    申请号：US18224242

    申请日：2023-07-20

    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

    Inventor： Young-Bae Ko ,  Ji Woong Park

    IPC: G01S5/14

    CPC classification number: G01S5/14 ,  G01S2205/02

    Abstract: The present disclosure provides a system for wireless positioning system including a collection unit for collecting a plurality of CIR data and distance data between a plurality of anchor terminals and the mobile terminal, when the mobile terminal communicates with the plurality of anchor terminals installed in a space for performing positioning of the mobile terminal; a pre-processing unit for generating a plurality of pre-proceed data by pre-processing the plurality of CIR data; a first learning unit for learning a first artificial neural network based on the plurality of pre-processed data and the distance data; an analysis unit for analyzing the first artificial neural network to select a plurality of positioning critical data used for positioning of the mobile terminal among the plurality of pre-processed data; and a second learning unit for learning a second artificial neural network based on the plurality of positioning critical data and the distance data.

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