Patent ID: 11893465
Assignee: PAYPAL, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 0:
1. A system, comprising:
a non-transitory memory; and
one or more hardware processors coupled with the non-transitory memory and configured to read instructions from the non-transitory memory to cause the system to perform operations comprising:
generating a first plurality of decision trees as a first layer of a gradient boosting tree, wherein each of the first plurality of decision trees is independent from other decision trees in the first plurality of decision trees, and wherein each of the first plurality of decision trees is configured to receive input values corresponding to one or more risk detection features;
training the first plurality of decision trees in parallel;
subsequent to the training, determining, for each of the first plurality of decision trees, a prediction error based on a set of training data;
calculating a collective prediction error for the first layer of the gradient boosting tree based on the prediction error determined for each of the first plurality of decision trees; and
generating a second plurality of decision trees as a second layer of the gradient boosting tree based on the collective prediction error calculated for the first layer of the gradient boosting tree, wherein the second plurality of decision trees in the second layer of the gradient boosting tree is configured to reduce the collective prediction error for the first layer of the gradient boosting tree.