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Fabio Somenzi

5 accepted papers

2025

Explaining Puzzle Solutions in Natural Language: An Exploratory Study on 6x6 Sudoku

ACL 2025finding

The success of Large Language Models (LLMs) in human-AI collaborative decision-making hinges on their ability to provide trustworthy, gradual, and tailored explanations. Solving complex puzzles, such as Sudoku, offers a canonical example of this collaboration, where clear and customized explanations…

2024

A PAC Learning Algorithm for LTL and Omega-Regular Objectives in MDPs

AAAI 2024technical

Linear temporal logic (LTL) and omega-regular objectives---a superset of LTL---have seen recent use as a way to express non-Markovian objectives in reinforcement learning. We introduce a model-based probably approximately correct (PAC) learning algorithm for omega-regular objectives in Markov decisi…

Cited by 6SourcePDFScholar
2024

Assume-Guarantee Reinforcement Learning

AAAI 2024technical

We present a modular approach to reinforcement learning (RL) in environments consisting of simpler components evolving in parallel. A monolithic view of such modular environments may be prohibitively large to learn, or may require unrealizable communication between the components in the form of a ce…

Cited by 1SourcePDFScholar
2024

Omega-Regular Decision Processes

AAAI 2024technical

Regular decision processes (RDPs) are a subclass of non-Markovian decision processes where the transition and reward functions are guarded by some regular property of the past (a lookback). While RDPs enable intuitive and succinct representation of non-Markovian decision processes, their expressive…

Cited by 1SourcePDFScholar
2022

Recursive Reinforcement Learning

NeurIPS 2022accept

Recursion is the fundamental paradigm to finitely describe potentially infinite objects. As state-of-the-art reinforcement learning (RL) algorithms cannot directly reason about recursion, they must rely on the practitioner's ingenuity in designing a suitable "flat" representation of the environment.…

Cited by 3SourcePDFScholar