arXiv AI By Bo Ni

Learning from fracture: Teaching language models to design through physical experience

Read the original on arXiv AI →

The paper introduces FracLearn, a framework that enables language models to design physical structures by learning from simulated fracture experiments. In a Tetris-inspired fracture game, the model proposes architectures, gathers experience from simulated crack responses, abstracts observations into conditional principles, and generalizes these principles to create improved designs. The approach achieves a 11.0% performance gain over prior records and demonstrates that learning can occur through external knowledge and decision-making without updating model weights.

Machine-generated by The Flow from the publisher's headline and feed description — not written or checked by a human. The full article lives at arXiv AI.

arXiv AI
Jun 30

Hierarchical Experimentalist Agents

arXiv:2606. 29315v1 Announce Type: new Abstract: Large language models (LLMs) are increasingly used to take actions in the real world and support human decision-making, yet most agents rely on parametric knowledge, fixed post-training data, retrieval, or search.

By Abhranil Chandra, Sankaran Vaidyanathan, Utsav Dhanuka, Varun Gandhi, Scott Niekum
arXiv AI
Oct 16

Amortizing Sequential Experimental Design in Reasoning LLMs

The paper proposes a method to embed sequential Bayesian experimental design (BED) into large language models (LLMs) by training the models to reason about action selection using information-gain rewards. By specifying the experimental generative model separately from the LLM’s beliefs, the authors optimize expected information gain under a chosen model. Experiments on the Twenty Questions task show that the resulting policies outperform both inference- and training-time BED baselines while incurring lower computational costs, and the approach generalizes to unseen categories and transfers positively to the Medi-Q clinical dialogue benchmark.

By Anita Kriz, Antonin Berthon, Nicol\'as Astorga, Mihaela van der Schaar