公开(公告)号：US11321581B2

公开(公告)日：2022-05-03

申请号：US16866836

申请日：2020-05-05

Applicant: SAS Institute Inc.

Inventor： Kyungduck Cha ,  Carol Wagih Sadek ,  Zohreh Asgharzadeh Talebi

IPC: G06K9/62 ,  G06K9/00 ,  G06N3/08

Abstract: Physical-device anomalies and degradation can be mitigated by implementing some aspects described herein. For example, a system can determine a first data window and a second data window by applying a window function to streaming data. The system can determine a first principal eigenvector of the first data window and a first principal eigenvector of the second data window. The system can determine an angle change between the first principal eigenvectors of the two data windows. The system can then detect an anomaly based on determining that the angle change exceeds a predefined angle-change threshold. Additionally or alternatively, the system may compare the first principal eigenvector for the second data window to a baseline value to determine an absolute angle associated with the second data window. The system can then detect a degradation based on determining that the absolute angle exceeds a predefined absolute-angle threshold.

公开(公告)号：US10983682B2

公开(公告)日：2021-04-20

申请号：US15976052

申请日：2018-05-10

Applicant: SAS Institute Inc.

Inventor： Michael James Leonard ,  Jie Zhong ,  Kyungduck Cha ,  Rajendra Singh Solanki ,  Rajib Nath ,  Macklin Frazier ,  Li Xu

IPC: G06F3/0484 ,  G06T11/20 ,  G06F3/0482 ,  G06N20/00 ,  G06F16/2458

Abstract: Time-series projections can be analyzed and manipulated via an interactive graphical user interface generated by a system. The graphical user interface can include a graph depicting an aggregated time-series projection (ATSP) over a future time. The ATSP can be generated by aggregating multiple time-series. The system can receive user input indicating that an existing value in the ATSP is to be overridden with an override value. In response, the system can adjust the ATSP using the override value to generate an updated version of the ATSP. The system can display the updated version of the ATSP in the graphical user interface. The system can also propagate the impact of overriding the existing value with the override value through the multiple time-series. The system can display an impact analysis portion within the graphical user interface indicating the impact of overriding the existing value with the override value on the multiple time-series.

公开(公告)号：US20180260106A1

公开(公告)日：2018-09-13

申请号：US15976052

申请日：2018-05-10

Applicant: SAS Institute Inc.

Inventor： Michael James Leonard ,  Jie Zhong ,  Kyungduck Cha ,  Rajendra Singh Solanki ,  Rajib Nath ,  Macklin Frazier ,  Li Xu

IPC: G06F3/0484 ,  G06F3/0482 ,  G06T11/20

CPC classification number: G06F3/04847 ,  G06F3/0482 ,  G06F16/2462 ,  G06N20/00 ,  G06T11/206 ,  G06T2200/24

Abstract: Time-series projections can be analyzed and manipulated via an interactive graphical user interface generated by a system. The graphical user interface can include a graph depicting an aggregated time-series projection (ATSP) over a future time. The ATSP can be generated by aggregating multiple time-series. The system can receive user input indicating that an existing value in the ATSP is to be overridden with an override value. In response, the system can adjust the ATSP using the override value to generate an updated version of the ATSP. The system can display the updated version of the ATSP in the graphical user interface. The system can also propagate the impact of overriding the existing value with the override value through the multiple time-series. The system can display an impact analysis portion within the graphical user interface indicating the impact of overriding the existing value with the override value on the multiple time-series.