ResearchBenchmarksScientific Equation Discovery on Stress–Strain (OOD)Scientific Equation Discovery on Stress–Strain (OOD)Follow0.0124NMSE OODPiT-PO0.002140.0713950.140650.209905Feb 11, 2026Evaluation resultsMethodMethodLinksNMSE OODPiT-POBackbone=Llama-3.2-1BBackbone=Llama-3.2-1B2026.020.0124PiT-POBackbone=Llama-3.2-3BBackbone=Llama-3.2-3B2026.020.0144PiT-POBackbone=Llama-3.1-8BBackbone=Llama-3.1-8B2026.020.0163LLM-SRBackbone=Llama-3.2-3BBackbone=Llama-3.2-3B2026.020.0264LLM-SRBackbone=Llama-3.1-8BBackbone=Llama-3.1-8B2026.020.1026LLM-SRBackbone=Llama-3.2-1BBackbone=Llama-3.2-1B2026.020.2689