Balancing Multi-modal Sensor Learning via Multi-objective Optimization

Fuente: arXiv
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Auteurs principaux: Fernando, Heshan, Xiao, Quan, Ram, Parikshit, Zhou, Yi, Samulowitz, Horst, Baracaldo, Nathalie, Chen, Tianyi
Format: Preprint
Publié: 2025
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author Fernando, Heshan
Xiao, Quan
Ram, Parikshit
Zhou, Yi
Samulowitz, Horst
Baracaldo, Nathalie
Chen, Tianyi
author_facet Fernando, Heshan
Xiao, Quan
Ram, Parikshit
Zhou, Yi
Samulowitz, Horst
Baracaldo, Nathalie
Chen, Tianyi
contents Learning-enabled control systems increasingly rely on multiple sensing modalities (e.g., vision, audio, language, etc.) for perception and decision support. A key challenge is that multi-modal sensor training dynamics are often imbalanced: fast-to-learn sensing channels dominate optimization, while slower channels remain underutilized, degrading reliability under sensing perturbations. Existing balancing strategies are largely heuristic and can require computationally intensive subroutines. In this paper, we reformulate multi-modal sensor learning as a multi-objective optimization (MOO) problem that explicitly prioritizes the worst-performing modality while retaining the nominal multi-modal sensor fusion objective. We then propose a simple gradient-based method, MIMO (multi-modal sensor learning via MOO), for the resulting formulation. We provide convergence guarantees and evaluate the method on standard multi-modal benchmarks. Results show improved balanced performance over state-of-the-art balanced multi-modal learning and MOO baselines, together with up to ~20x reduction in subroutine computation time, highlighting the suitability of MIMO for resource-constrained control pipelines.
format Preprint
id arxiv_https___arxiv_org_abs_2511_06686
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Balancing Multi-modal Sensor Learning via Multi-objective Optimization
Fernando, Heshan
Xiao, Quan
Ram, Parikshit
Zhou, Yi
Samulowitz, Horst
Baracaldo, Nathalie
Chen, Tianyi
Machine Learning
Learning-enabled control systems increasingly rely on multiple sensing modalities (e.g., vision, audio, language, etc.) for perception and decision support. A key challenge is that multi-modal sensor training dynamics are often imbalanced: fast-to-learn sensing channels dominate optimization, while slower channels remain underutilized, degrading reliability under sensing perturbations. Existing balancing strategies are largely heuristic and can require computationally intensive subroutines. In this paper, we reformulate multi-modal sensor learning as a multi-objective optimization (MOO) problem that explicitly prioritizes the worst-performing modality while retaining the nominal multi-modal sensor fusion objective. We then propose a simple gradient-based method, MIMO (multi-modal sensor learning via MOO), for the resulting formulation. We provide convergence guarantees and evaluate the method on standard multi-modal benchmarks. Results show improved balanced performance over state-of-the-art balanced multi-modal learning and MOO baselines, together with up to ~20x reduction in subroutine computation time, highlighting the suitability of MIMO for resource-constrained control pipelines.
title Balancing Multi-modal Sensor Learning via Multi-objective Optimization
topic Machine Learning
url https://arxiv.org/abs/2511.06686