A Bellman Optimality Equation for Plasticity — Paper

Abstract

In continual reinforcement learning, carefully managing the stability-plasticity tradeoff remains a core challenge. Recent work by Abel et al. (2025) formalized this dilemma by defining plasticity as the generalized directed information from an agent's observations to its actions, and empowerment as the generalized directed information from its actions to its observations. This formulation successfully reframes the traditional stability-plasticity tradeoff as an empowerment-plasticity tradeoff. However, while extensive literature exists on optimizing for empowerment, there is currently no research addressing the optimization of plasticity under this new definition. This paper presents preliminary work toward optimizing plasticity within Markov decision processes. We show that there exists a Bellman optimality equation for optimizing plasticity similar to previous work for empowerment.

Authors 2

Jeremy Lucas, Doina Precup

Specification

Official page: arxiv.org/abs/2609.10776
Source:arXiv (Atom API + RSS)T1observed 41 min agohigh
Arxiv announce type: new
Source:arXiv (Atom API + RSS)T1observed 41 min agohigh
arXiv id: 2609.10776
Source:arXiv (Atom API + RSS)T1observed 41 min agohigh
Categories: cs.LG
Source:arXiv (Atom API + RSS)T1observed 41 min agohigh
PDF: arxiv.org/pdf/2609.10776
Source:arXiv (Atom API + RSS)T1observed 41 min agohigh
Primary category: cs.LG
Source:arXiv (Atom API + RSS)T1observed 41 min agohigh
Published: 11 Sept 2026
Source:arXiv (Atom API + RSS)T1observed 41 min agohigh

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Provenance

Attributed facts

9

Source tiers

T19

Freshest observation

41 min ago

Conflicts

None

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Authors: Jeremy Lucas, Doina Precup

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Claim history · Abstract

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Abstractabstract1

Claim history for Abstract
Value	Valid from → to	Status	Source	Confidence	Extractor
In continual reinforcement learning, carefully managing the stability-plasticity tradeoff remains a core challenge. Recent work by Abel et al. (2025) formalized this dilemma by defining plasticity as the generalized directed information from an agent's observations to its actions, and empowerment as the generalized directed information from its actions to its observations. This formulation successfully reframes the traditional stability-plasticity tradeoff as an empowerment-plasticity tradeoff. However, while extensive literature exists on optimizing for empowerment, there is currently no research addressing the optimization of plasticity under this new definition. This paper presents preliminary work toward optimizing plasticity within Markov decision processes. We show that there exists a Bellman optimality equation for optimizing plasticity similar to previous work for empowerment.	11 Sept 2026 21:02 UTC → current	current	arXiv (Atom API + RSS)T1	high	deterministic

Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →

11 Sept 2026
New paperPaperA Bellman Optimality Equation for Plasticity
New paper: A Bellman Optimality Equation for Plasticity
arxiv
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Source documents
Source	Document	Type	Tier	Last observed	Snapshots
arXiv (Atom API + RSS)	rss.arxiv.org/rss/cs.LG	feed	T1· Official	41 min ago	1

Tier 1 = official/primary, 2 = quality secondary, 3 = community, 4 = unverified. Every snapshot is archived; see all sources and the methodology.