US 11,928,017 B2
Point anomaly detection
Zichuan Ye, Mountain View, CA (US); Jiashang Liu, Kirkland, WA (US); Forest Elliott, Mountain View, CA (US); Amir Hormati, Mountain View, CA (US); Xi Cheng, Kirkland, WA (US); and Mingge Deng, Kirkland, WA (US)
Assigned to Google LLC, Mountain View, CA (US)
Filed by Google LLC, Mountain View, CA (US)
Filed on May 21, 2022, as Appl. No. 17/664,409.
Claims priority of provisional application 63/193,038, filed on May 25, 2021.
Prior Publication US 2022/0382622 A1, Dec. 1, 2022
Int. Cl. G06F 11/07 (2006.01)
CPC G06F 11/0793 (2013.01) [G06F 11/0709 (2013.01); G06F 11/079 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A computer-implemented method executed by data processing hardware of a cloud database system that causes the data processing hardware to perform operations comprising:
receiving a point data anomaly detection query from a user, the point data anomaly detection query requesting the data processing hardware to determine a quantity of anomalous point data values in a set of point data values; and
in response to receiving the point data anomaly detection query:
training, using unsupervised learning, a model using the set of point data values;
for at least one respective point data value in the set of point data values:
determining, using the trained model, a variance value for the at least one respective point data value;
determining that the variance value satisfies a threshold value; and
determining that the at least one respective point data value is an anomalous point data value based on the variance value satisfying the threshold value; and
reporting the determined anomalous point data value to the user.