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1.发明公开公开(公告)号：US20240320402A1
公开(公告)日：2024-09-26
申请号：US18544065
申请日：2023-12-18
发明人： Sangjune Bae , Taeyoon An , Joohyung You , In Huh , Moonhyun Cha , Jaemyung Choe
IPC分类号： G06F30/27
CPC分类号： G06F30/27
摘要： Provided are a method, a device, and a system for estimating threshold values of a kernel density function with respect to defects of a product. The method includes a bootstrapping sampling operation, estimating optimal kernel bandwidths for sample data sets by using a bandwidth estimation method selected according to a number of sample data from among a plurality of bandwidth estimation methods, estimating threshold values corresponding to a tail region of the kernel density function based on the optimal kernel bandwidths, and providing a quantitative value for quantifying uncertainty of the threshold values based on the plurality of threshold values.
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公开(公告)号：US20230339523A1
公开(公告)日：2023-10-26
申请号：US18094827
申请日：2023-01-09
发明人： In Kyeong HWANG , Hyuk Jae Sung , Hyungsik Um , Hongjin Kim , Won Young Kim , Bo Seung Hwang , Sangjune Bae , Byeong Hyeon Lim
摘要： A rail inspection device is provided. The rail inspection device includes: a drive part configured to drive on a lower rail; side wheels configured to rotate such that the drive part moves in a first direction on the lower rail, wherein the side wheels are provided on two side surfaces of the drive part opposite to each other in a second direction that intersects the first direction; upper wheels provided on an upper surface of the drive part and configured to rotate in contact with a branch guide rail provided above an upper portion of the drive part; a body connected to a lower surface of the drive part in a third direction that is perpendicular to the first direction and the second direction; and an inclination sensor provided on the upper surface of the drive part and configured to measure an inclination of the body.
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