Advanced New Technologies Co., Ltd.

Jinfan Biomedical Technology (Wuhan) Co., Ltd.

Wenjing Fang

Jun Zhou

Licui Gao

Xing Pan

Sheng Zhang

Guangmeng Liu

Xiaobin He

Implementations of the present specification disclose methods, devices, and apparatuses for determining a feature interpretation of a predicted label value of a user generated by a GBDT model. In one aspect, the method includes separately obtaining, from each of a predetermined quantity of decision trees ranked among top decision trees, a leaf node and a score of the leaf node; determining a respective prediction path of each leaf node; obtaining, for each parent node on each prediction path, a split feature and a score of the parent node; determining, for each child node on each prediction path, a feature corresponding to the child node and a local increment of the feature on the child node; obtaining a collection of features respectively corresponding to the child nodes; and obtaining a respective measure of relevance between the feature corresponding to the at least one child node and the predicted label value.

GBDT model feature interpretation method and apparatus

Growing community of inventors

Hangzhou, China

Wenjing Fang