SIGNALAI·May 27, 2026, 4:00 AMSignal75Medium term

Balancing Plasticity and Stability with Fast and Slow Successor Features

Source: arXiv cs.LG

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Balancing Plasticity and Stability with Fast and Slow Successor Features

arXiv:2605.26357v1 Announce Type: new Abstract: A hallmark of intelligence is the ability to adapt in non-stationary environments, yet deep Reinforcement Learning (RL) agents often struggle in such settings. Prior studies introduce non-stationarity through abrupt shifts in features or dynamics, whereas real-world environments often evolve gradually through continual drift. This distinction has important implications for the "stability-plasticity dilemma" in RL, as abrupt task changes may demand more plasticity than naturalistic settings. To address this, we modify existing 3D Miniworld and MuJ

Why this matters
Why now

The research addresses a fundamental challenge (plasticity-stability dilemma) in deep RL, which is amplified as AI applications move into more dynamic and real-world environments.

Why it’s important

Improving RL agents' ability to adapt to non-stationary environments is crucial for their deployment in complex, continuously evolving real-world scenarios, particularly autonomous systems and AI agents.

What changes

This paper offers a novel approach to making RL agents more robust and adaptable to gradual environmental changes, suggesting a path to more reliable and generalizable AI.

Winners
  • · AI agents developers
  • · Robotics industry
  • · Deep Reinforcement Learning researchers
  • · Any industry using autonomous systems
Losers
  • · RL methods susceptible to catastrophic forgetting
  • · Deep Reinforcement Learning approaches lacking adaptability
Second-order effects
Direct

RL agents will be able to perform effectively in environments with continuous, gradual changes.

Second

The improved adaptability of RL agents could accelerate the development and deployment of more sophisticated autonomous systems.

Third

More robust and adaptable AI agents could lead to significant advancements in areas requiring continuous learning and environmental interaction, potentially collapsing workflows.

Editorial confidence: 90 / 100 · Structural impact: 60 / 100
Original report

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Read at arXiv cs.LG
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