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Equitable Multi-Task Learning for AI-RANs

arXiv cs.LG / 3/11/2026

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Key Points

  • AI-enabled Radio Access Networks (AI-RANs) require fair multi-task learning methods to serve heterogeneous users with time-varying tasks on shared edge resources.
  • The paper proposes a new framework called online-within-online fair multi-task learning (OWO-FMTL) that uses two nested learning loops to ensure long-term fairness across users.
  • Equity is measured using generalized alpha-fairness, enabling a balance between overall efficiency and fairness.
  • The OWO-FMTL method offers low computational overhead, making it practical for deployment on edge devices, and shows superior performance compared to existing multi-task learning methods in dynamic environments.
  • Experiments validate the framework’s ability to reduce performance disparities between users over time, supporting equitable AI-RAN operation under real-world conditions.

Computer Science > Machine Learning

arXiv:2603.08717 (cs)
[Submitted on 9 Feb 2026]

Title:Equitable Multi-Task Learning for AI-RANs

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Abstract:AI-enabled Radio Access Networks (AI-RANs) are expected to serve heterogeneous users with time-varying learning tasks over shared edge resources. Ensuring equitable inference performance across these users requires adaptive and fair learning mechanisms. This paper introduces an online-within-online fair multi-task learning (OWO-FMTL) framework that ensures long-term equity across users. The method combines two learning loops: an outer loop updating the shared model across rounds and an inner loop rebalancing user priorities within each round with a lightweight primal-dual update. Equity is quantified via generalized alpha-fairness, allowing a trade-off between efficiency and fairness. The framework guarantees diminishing performance disparity over time and operates with low computational overhead suitable for edge deployment. Experiments on convex and deep learning tasks confirm that OWO-FMTL outperforms existing multi-task learning baselines under dynamic scenarios.
Comments:
Subjects: Machine Learning (cs.LG); Networking and Internet Architecture (cs.NI)
Cite as: arXiv:2603.08717 [cs.LG]
  (or arXiv:2603.08717v1 [cs.LG] for this version)
  https://doi.org/10.48550/arXiv.2603.08717
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arXiv-issued DOI via DataCite

Submission history

From: Panayiotis Raptis [view email]
[v1] Mon, 9 Feb 2026 13:35:39 UTC (427 KB)
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