Distributionally robust minimization in meta-learning for system identification
- URL: http://arxiv.org/abs/2506.18074v1
- Date: Sun, 22 Jun 2025 15:41:22 GMT
- Title: Distributionally robust minimization in meta-learning for system identification
- Authors: Matteo Rufolo, Dario Piga, Marco Forgione,
- Abstract summary: This work explores distributionally robust minimization in meta learning for system identification.<n>We use an alternative approach, adopting a distributionally robust optimization paradigm that prioritizes high-loss tasks, enhancing performance in worst-case scenarios.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Meta learning aims at learning how to solve tasks, and thus it allows to estimate models that can be quickly adapted to new scenarios. This work explores distributionally robust minimization in meta learning for system identification. Standard meta learning approaches optimize the expected loss, overlooking task variability. We use an alternative approach, adopting a distributionally robust optimization paradigm that prioritizes high-loss tasks, enhancing performance in worst-case scenarios. Evaluated on a meta model trained on a class of synthetic dynamical systems and tested in both in-distribution and out-of-distribution settings, the proposed approach allows to reduce failures in safety-critical applications.
Related papers
- Task-Distributionally Robust Data-Free Meta-Learning [99.56612787882334]
Data-Free Meta-Learning (DFML) aims to efficiently learn new tasks by leveraging multiple pre-trained models without requiring their original training data.
For the first time, we reveal two major challenges hindering their practical deployments: Task-Distribution Shift ( TDS) and Task-Distribution Corruption (TDC)
arXiv Detail & Related papers (2023-11-23T15:46:54Z) - A Simple Yet Effective Strategy to Robustify the Meta Learning Paradigm [16.159983226725565]
We propose a two-stage strategy to control the worst fast adaptation cases at a certain probabilistic level.
Experimental results show that our simple method can improve the robustness of meta learning to task distributions.
arXiv Detail & Related papers (2023-10-01T15:54:45Z) - Algorithm Design for Online Meta-Learning with Task Boundary Detection [63.284263611646]
We propose a novel algorithm for task-agnostic online meta-learning in non-stationary environments.
We first propose two simple but effective detection mechanisms of task switches and distribution shift.
We show that a sublinear task-averaged regret can be achieved for our algorithm under mild conditions.
arXiv Detail & Related papers (2023-02-02T04:02:49Z) - Task Weighting in Meta-learning with Trajectory Optimisation [37.32107678838193]
We introduce a new principled and fully-automated task-weighting algorithm for meta-learning methods.
By considering the weights of tasks within the same mini-batch as an action, we cast the task-weighting meta-learning problem to a trajectory optimisation.
We empirically demonstrate that the proposed approach out-performs common hand-engineering weighting methods in two few-shot learning benchmarks.
arXiv Detail & Related papers (2023-01-04T01:36:09Z) - Distributionally Adaptive Meta Reinforcement Learning [85.17284589483536]
We develop a framework for meta-RL algorithms that behave appropriately under test-time distribution shifts.
Our framework centers on an adaptive approach to distributional robustness that trains a population of meta-policies to be robust to varying levels of distribution shift.
We show how our framework allows for improved regret under distribution shift, and empirically show its efficacy on simulated robotics problems.
arXiv Detail & Related papers (2022-10-06T17:55:09Z) - Improving Meta-learning for Low-resource Text Classification and
Generation via Memory Imitation [87.98063273826702]
We propose a memory imitation meta-learning (MemIML) method that enhances the model's reliance on support sets for task adaptation.
A theoretical analysis is provided to prove the effectiveness of our method.
arXiv Detail & Related papers (2022-03-22T12:41:55Z) - Model-based Meta Reinforcement Learning using Graph Structured Surrogate
Models [40.08137765886609]
We show that our model, called a graph structured surrogate model (GSSM), outperforms state-of-the-art methods in predicting environment dynamics.
Our approach is able to obtain high returns, while allowing fast execution during deployment by avoiding test time policy gradient optimization.
arXiv Detail & Related papers (2021-02-16T17:21:55Z) - Reparameterized Variational Divergence Minimization for Stable Imitation [57.06909373038396]
We study the extent to which variations in the choice of probabilistic divergence may yield more performant ILO algorithms.
We contribute a re parameterization trick for adversarial imitation learning to alleviate the challenges of the promising $f$-divergence minimization framework.
Empirically, we demonstrate that our design choices allow for ILO algorithms that outperform baseline approaches and more closely match expert performance in low-dimensional continuous-control tasks.
arXiv Detail & Related papers (2020-06-18T19:04:09Z) - Model-based Adversarial Meta-Reinforcement Learning [38.28304764312512]
We propose Model-based Adversarial Meta-Reinforcement Learning (AdMRL)
AdMRL aims to minimize the worst-case sub-optimality gap across all tasks in a family of tasks.
We evaluate our approach on several continuous control benchmarks and demonstrate its efficacy in the worst-case performance over all tasks.
arXiv Detail & Related papers (2020-06-16T02:21:49Z) - Learning Diverse Representations for Fast Adaptation to Distribution
Shift [78.83747601814669]
We present a method for learning multiple models, incorporating an objective that pressures each to learn a distinct way to solve the task.
We demonstrate our framework's ability to facilitate rapid adaptation to distribution shift.
arXiv Detail & Related papers (2020-06-12T12:23:50Z) - Structured Prediction for Conditional Meta-Learning [44.30857707980074]
We propose a new perspective on conditional meta-learning via structured prediction.
We derive task-adaptive structured meta-learning (TASML), a principled framework that yields task-specific objective functions.
Empirically, we show that TASML improves the performance of existing meta-learning models, and outperforms the state-of-the-art on benchmark datasets.
arXiv Detail & Related papers (2020-02-20T15:24:15Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.