Soft Gradient Boosting with Learnable Feature Transforms for Sequential Regression

Fuente: arXiv
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Main Authors: Karaca, Huseyin, Kozat, Suleyman Serdar
Format: Preprint
Published: 2025
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author Karaca, Huseyin
Kozat, Suleyman Serdar
author_facet Karaca, Huseyin
Kozat, Suleyman Serdar
contents We propose a soft gradient boosting framework for sequential regression that embeds a learnable linear feature transform within the boosting procedure. At each boosting iteration, we train a soft decision tree and learn a linear input feature transform Q together. This approach is particularly advantageous in high-dimensional, data-scarce scenarios, as it discovers the most relevant input representations while boosting. We demonstrate, using both synthetic and real-world datasets, that our method effectively and efficiently increases the performance by an end-to-end optimization of feature selection/transform and boosting while avoiding overfitting. We also extend our algorithm to differentiable non-linear transforms if overfitting is not a problem. To support reproducibility and future work, we share our code publicly.
format Preprint
id arxiv_https___arxiv_org_abs_2509_12920
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Soft Gradient Boosting with Learnable Feature Transforms for Sequential Regression
Karaca, Huseyin
Kozat, Suleyman Serdar
Machine Learning
Signal Processing
We propose a soft gradient boosting framework for sequential regression that embeds a learnable linear feature transform within the boosting procedure. At each boosting iteration, we train a soft decision tree and learn a linear input feature transform Q together. This approach is particularly advantageous in high-dimensional, data-scarce scenarios, as it discovers the most relevant input representations while boosting. We demonstrate, using both synthetic and real-world datasets, that our method effectively and efficiently increases the performance by an end-to-end optimization of feature selection/transform and boosting while avoiding overfitting. We also extend our algorithm to differentiable non-linear transforms if overfitting is not a problem. To support reproducibility and future work, we share our code publicly.
title Soft Gradient Boosting with Learnable Feature Transforms for Sequential Regression
topic Machine Learning
Signal Processing
url https://arxiv.org/abs/2509.12920