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Main Authors: Wegel, Tobias, Kovačević, Filip, Ţifrea, Alexandru, Yang, Fanny
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2503.08849
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author Wegel, Tobias
Kovačević, Filip
Ţifrea, Alexandru
Yang, Fanny
author_facet Wegel, Tobias
Kovačević, Filip
Ţifrea, Alexandru
Yang, Fanny
contents Simultaneously addressing multiple objectives is becoming increasingly important in modern machine learning. At the same time, data is often high-dimensional and costly to label. For a single objective such as prediction risk, conventional regularization techniques are known to improve generalization when the data exhibits low-dimensional structure like sparsity. However, it is largely unexplored how to leverage this structure in the context of multi-objective learning (MOL) with multiple competing objectives. In this work, we discuss how the application of vanilla regularization approaches can fail, and propose a two-stage MOL framework that can successfully leverage low-dimensional structure. We demonstrate its effectiveness experimentally for multi-distribution learning and fairness-risk trade-offs.
format Preprint
id arxiv_https___arxiv_org_abs_2503_08849
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Learning Pareto manifolds in high dimensions: How can regularization help?
Wegel, Tobias
Kovačević, Filip
Ţifrea, Alexandru
Yang, Fanny
Machine Learning
Simultaneously addressing multiple objectives is becoming increasingly important in modern machine learning. At the same time, data is often high-dimensional and costly to label. For a single objective such as prediction risk, conventional regularization techniques are known to improve generalization when the data exhibits low-dimensional structure like sparsity. However, it is largely unexplored how to leverage this structure in the context of multi-objective learning (MOL) with multiple competing objectives. In this work, we discuss how the application of vanilla regularization approaches can fail, and propose a two-stage MOL framework that can successfully leverage low-dimensional structure. We demonstrate its effectiveness experimentally for multi-distribution learning and fairness-risk trade-offs.
title Learning Pareto manifolds in high dimensions: How can regularization help?
topic Machine Learning
url https://arxiv.org/abs/2503.08849