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Author

Sahar Vahdati

4 papers indexed here

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#machine learning Preprint Oct 2026

A Systematic Study of Small Language Models on Abstract Reasoning Tasks

Endpoint accuracy on abstract-reasoning benchmarks does not reveal whether a language model has acquired a transferable rule or fit distribution-specific regularities. We study this distinction in small language models on the ARC-TGI benchmark, which organizes abstract grid transformations into controllable task famili...

Nur A. Zarin Nishat, Jens Lehmann, Andrei C. Aioanei et al. · 0 citations
Conference Open access Aug 2026

Games as Experimental Philosophy: Human and Artificial Learning in ARC-AGI-3 Worlds

How do humans and artificial agents learn to act in a world whose rules they do not yet know? We use LS20, a novel ARC-AGI-3 game, as an artificial world: a microcosm whose mechanics must be discovered through exploration and improvisation alone. We operationalise a methodological loop: observe how humans explore, adap...

Andrei C. Aioanei, Syeda Khushbakht Batool, Alexander Aston et al. · 0 citations
Jul 2026

Tycho: Active Abstraction with Programmatic World Models for ARC-AGI-3

Tycho, a coding-agent system that constructs and uses game-specific models during interaction and introduces Tycho, a coding-agent system that constructs and uses game-specific models during interaction in ARC-AGI-3.

Jens Lehmann, Andrei C. Aioanei, Sahar Vahdati · 10 citations · ⚡1

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