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surrogate modeling

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Sep 11, 2026 · Artificial Intelligence

AlphaSchema: Semantic Space Exploration Reshapes LLM Alpha Mining

AlphaSchema introduces a structured trading semantic space with five-dimensional schema plans to decouple exploration from LLM implementation, using a surrogate model and quota-based selection to discover high-performing factors that outperform baselines on China A-share markets while demonstrating robustness across LLM backends.

AlphaSchemaChina A-shareLLM alpha mining

0 likes · 19 min read

AlphaSchema: Semantic Space Exploration Reshapes LLM Alpha Mining

HyperAI Super Neural

May 18, 2026 · Artificial Intelligence

LSTM Surrogate Model Accelerates Second‑Order Nonlinear Optics Simulations by 252× to Millisecond Scale

A team from Stanford, UCLA and SLAC built a high‑fidelity LSTM surrogate that predicts sum‑frequency‑generation fields with millisecond‑level latency, achieving a 252‑fold speedup over split‑step Fourier simulations while preserving sub‑percent accuracy across thousands of pulse‑shaping configurations.

LSTMMachine Learningnonlinear optics

0 likes · 11 min read

LSTM Surrogate Model Accelerates Second‑Order Nonlinear Optics Simulations by 252× to Millisecond Scale