Search Results for author: Tianping Zhang

Found 5 papers, 3 papers with code

Unbiased Gradient Boosting Decision Tree with Unbiased Feature Importance

1 code implementation18 May 2023 Zheyu Zhang, Tianping Zhang, Jian Li

To this end, we provide a fine-grained analysis of bias in GBDT and demonstrate that the bias originates from 1) the systematic bias in the gain estimation of each split and 2) the bias in the split finding algorithm resulting from the use of the same data to evaluate the split improvement and determine the best split.

Feature Importance feature selection

OpenFE: Automated Feature Generation with Expert-level Performance

2 code implementations22 Nov 2022 Tianping Zhang, Zheyu Zhang, Zhiyuan Fan, Haoyan Luo, Fengyuan Liu, Qian Liu, Wei Cao, Jian Li

In the two competitions, features generated by OpenFE with a simple baseline model can beat 99. 3% and 99. 6% data science teams respectively.

Feature Importance

Cannot find the paper you are looking for? You can Submit a new open access paper.