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20112026
most citedReward Machines: Exploiting Reward Function Structure in Reinforcement Learning

188 citations · 199 across the 16 of their papers we have counts for

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10 papers · 1 filter

cs.AI2026

Learning Bilevel Policies over Symbolic World Models for Long-Horizon Planning

Dillon Z. Chen, Till Hofmann, Toryn Q. Klassen +1

We tackle the challenge of building embodied AI agents that can reliably solve long-horizon planning problems. Imitation learning from demonstrations has shown itself to be effecti…

cs.AI2026

Formal Methods Meet LLMs: Auditing, Monitoring, and Intervention for Compliance of Advanced AI Systems

Parand A. Alamdari, Toryn Q. Klassen, Sheila A. McIlraith

We examine one particular dimension of AI governance: how to monitor and audit AI-enabled products and services throughout the AI development lifecycle, from pre-deployment testing…

cs.AI2025

Evaluating Generalization Capabilities of LLM-Based Agents in Mixed-Motive Scenarios Using Concordia

Chandler Smith, Marwa Abdulhai, Manfred Diaz +83

Large Language Model (LLM) agents have demonstrated impressive capabilities for social interaction and are increasingly being deployed in situations where they might engage with bo…

cs.AI2025

Satisficing and Optimal Generalised Planning via Goal Regression (Extended Version)

Dillon Z. Chen, Till Hofmann, Toryn Q. Klassen +1

Generalised planning (GP) refers to the task of synthesising programs that solve families of related planning problems. We introduce a novel, yet simple method for GP: given a set…

cs.AI2025

Pushdown Reward Machines for Reinforcement Learning

Giovanni Varricchione, Toryn Q. Klassen, Natasha Alechina +3

Reward machines (RMs) are automata structures that encode (non-Markovian) reward functions for reinforcement learning (RL). RMs can reward any behaviour representable in regular la…

cs.AI2024

Pluralistic Alignment Over Time

Toryn Q. Klassen, Parand A. Alamdari, Sheila A. McIlraith

If an AI system makes decisions over time, how should we evaluate how aligned it is with a group of stakeholders (who may have conflicting values and preferences)? In this position…

cs.AI2024

Being Considerate as a Pathway Towards Pluralistic Alignment for Agentic AI

Parand A. Alamdari, Toryn Q. Klassen, Rodrigo Toro Icarte +1

Pluralistic alignment is concerned with ensuring that an AI system's objectives and behaviors are in harmony with the diversity of human values and perspectives. In this paper we s…

cs.AI2023

Remembering to Be Fair: Non-Markovian Fairness in Sequential Decision Making

Parand A. Alamdari, Toryn Q. Klassen, Elliot Creager +1

Fair decision making has largely been studied with respect to a single decision. Here we investigate the notion of fairness in the context of sequential decision making where multi…

cs.AI2021

Be Considerate: Objectives, Side Effects, and Deciding How to Act

Parand Alizadeh Alamdari, Toryn Q. Klassen, Rodrigo Toro Icarte +1

Recent work in AI safety has highlighted that in sequential decision making, objectives are often underspecified or incomplete. This gives discretion to the acting agent to realize…

cs.AI2020

Towards the Role of Theory of Mind in Explanation

Maayan Shvo, Toryn Q. Klassen, Sheila A. McIlraith

Theory of Mind is commonly defined as the ability to attribute mental states (e.g., beliefs, goals) to oneself, and to others. A large body of previous work - from the social scien…