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Mark Law

5 accepted papers

2023

Hierarchies of Reward Machines

ICML 2023oral

Reward machines (RMs) are a recent formalism for representing the reward function of a reinforcement learning task through a finite-state machine whose edges encode subgoals of the task using high-level events. The structure of RMs enables the decomposition of a task into simpler and independently s…

2023

Learning to Break Symmetries for Efficient Optimization in Answer Set Programming

AAAI 2023technical

The ability to efficiently solve hard combinatorial optimization problems is a key prerequisite to various applications of declarative programming paradigms. Symmetries in solution candidates pose a significant challenge to modern optimization algorithms since the enumeration of such candidates migh…

2023

Neuro-Symbolic Learning of Answer Set Programs from Raw Data

IJCAI 2023poster

One of the ultimate goals of Artificial Intelligence is to assist humans in complex decision making. A promising direction for achieving this goal is Neuro-Symbolic AI, which aims to combine the interpretability of symbolic techniques with the ability of deep learning to learn from raw data. However…

2022

Search Space Expansion for Efficient Incremental Inductive Logic Programming from Streamed Data

IJCAI 2022poster

In the past decade, several systems for learning Answer Set Programs (ASP) have been proposed, including the recent FastLAS system. Compared to other state-of-the-art approaches to learning ASP, FastLAS is more scalable, as rather than computing the hypothesis space in full, it computes a much small…