Search Results for author: Brian Liu

Found 8 papers, 4 papers with code

Randomization Can Reduce Both Bias and Variance: A Case Study in Random Forests

no code implementations20 Feb 2024 Brian Liu, Rahul Mazumder

We study the often overlooked phenomenon, first noted in \cite{breiman2001random}, that random forests appear to reduce bias compared to bagging.

FIRE: An Optimization Approach for Fast Interpretable Rule Extraction

1 code implementation12 Jun 2023 Brian Liu, Rahul Mazumder

We present FIRE, Fast Interpretable Rule Extraction, an optimization-based framework to extract a small but useful collection of decision rules from tree ensembles.

ControlBurn: Nonlinear Feature Selection with Sparse Tree Ensembles

1 code implementation8 Jul 2022 Brian Liu, Miaolan Xie, Haoyue Yang, Madeleine Udell

ControlBurn is a Python package to construct feature-sparse tree ensembles that support nonlinear feature selection and interpretable machine learning.

Additive models feature selection +1

ForestPrune: Compact Depth-Controlled Tree Ensembles

no code implementations31 May 2022 Brian Liu, Rahul Mazumder

We present ForestPrune, a novel optimization framework to post-process tree ensembles by pruning depth layers from individual trees.

ControlBurn: Feature Selection by Sparse Forests

1 code implementation1 Jul 2021 Brian Liu, Miaolan Xie, Madeleine Udell

Like the linear LASSO, ControlBurn assigns all the feature importance of a correlated group of features to a single feature.

Feature Importance feature selection

Impact of Accuracy on Model Interpretations

no code implementations17 Nov 2020 Brian Liu, Madeleine Udell

Model interpretations are often used in practice to extract real world insights from machine learning models.

Offline Handwritten Chinese Text Recognition with Convolutional Neural Networks

1 code implementation28 Jun 2020 Brian Liu, Xianchao Xu, Yu Zhang

Deep learning based methods have been dominating the text recognition tasks in different and multilingual scenarios.

Handwritten Chinese Text Recognition Language Modelling

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