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Main Authors: Zhao, Pinzhe, Sansone, Emanuele, Kryven, Marta, Zhao, Bonan
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2603.23244
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author Zhao, Pinzhe
Sansone, Emanuele
Kryven, Marta
Zhao, Bonan
author_facet Zhao, Pinzhe
Sansone, Emanuele
Kryven, Marta
Zhao, Bonan
contents When learning a novel complex task, people often form efficient reusable abstractions that simplify future work, despite uncertainty about the future. We study this process in a visual puzzle task where participants define and reuse helpers -- intermediate constructions that capture repeating structure. In an online experiment, participants solved puzzles of increasing difficulty. Early on, they created many helpers, favouring completeness over efficiency. With experience, helper use became more selective and efficient, reflecting sensitivity to reuse and cost. Access to helpers enabled participants to solve puzzles that were otherwise difficult or impossible. Computational modelling shows that human decision times and number of operations used to complete a puzzle increase with search space estimated by a program induction model with library learning. In contrast, raw program length predicts failure but not effort. Together, these results point to online library learning as a core mechanism in human problem solving, allowing people to flexibly build, refine, and reuse abstractions as task demands grow.
format Preprint
id arxiv_https___arxiv_org_abs_2603_23244
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Online library learning in human visual puzzle solving
Zhao, Pinzhe
Sansone, Emanuele
Kryven, Marta
Zhao, Bonan
Artificial Intelligence
When learning a novel complex task, people often form efficient reusable abstractions that simplify future work, despite uncertainty about the future. We study this process in a visual puzzle task where participants define and reuse helpers -- intermediate constructions that capture repeating structure. In an online experiment, participants solved puzzles of increasing difficulty. Early on, they created many helpers, favouring completeness over efficiency. With experience, helper use became more selective and efficient, reflecting sensitivity to reuse and cost. Access to helpers enabled participants to solve puzzles that were otherwise difficult or impossible. Computational modelling shows that human decision times and number of operations used to complete a puzzle increase with search space estimated by a program induction model with library learning. In contrast, raw program length predicts failure but not effort. Together, these results point to online library learning as a core mechanism in human problem solving, allowing people to flexibly build, refine, and reuse abstractions as task demands grow.
title Online library learning in human visual puzzle solving
topic Artificial Intelligence
url https://arxiv.org/abs/2603.23244