Patent ID: 11971956
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 13:
14. A system comprising:
a first one or more electronic devices storing a first video clip, a positive video clip extracted from a same video as the first video clip, and a negative video clip extracted from a different video as the first video clip; and
a second one or more electronic devices to implement a video machine learning model training service in a multi-tenant provider network, the video machine learning model training service including instructions that upon execution by one or more processors cause the video machine learning model training service to:
receive a request to train a visual neural network;
train the visual neural network using:
visual-to-visual contrastive learning according to a first loss function using the visual neural network on the first video clip, the positive video clip, and the negative video clip stored in the first one or more electronic devices, and
secondary-to-secondary contrastive learning according to a second loss function using a secondary neural network on secondary positive information and secondary negative information generated from the positive and negative video clips stored in the first one or more electronic devices, including applying flow edge maps as inputs to the secondary neural network; and

apply the first and second loss functions to the visual neural network.