Publications

You can also find my articles on my Google Scholar profile.

Journal Articles

SpectraExpert: Expert-Like Reasoning Agent for Spectrum-Based Molecular Identification

Published in Submitted to ICDM 2026, 2026

SpectraExpert combines domain-adapted Raman spectral retrieval with constrained large language model selection for molecular identification, with optional spectroscopic evidence. It evaluates retrieval, candidate selection, and evidence integration separately.

Recommended citation: Denghong Luan, Zaifan Lu, Wenjie Wang, Jun Jiang, Wei Hu. "SpectraExpert: Expert-Like Reasoning Agent for Spectrum-Based Molecular Identification." Submitted to ICDM 2026.

PPRBench: A Process-level Benchmark for LLMs’ Physical Reasoning

Published in under review, 2026

We introduce PPRBench, a contamination-free benchmark for evaluating physical reasoning in large language models at the process level, along with PhysGrader, a rubric-guided LLM-as-a-judge framework for step-by-step evaluation. We also explore GRPO with process rewards generated by PhysGrader, and evaluate 16 frontier LLMs.

Recommended citation: Denghong Luan, Wentao Shi, Wenjie Wang, Xiangnan He. "PPRBench: A Process-level Benchmark for LLMs' Physical Reasoning." under review.

Conference Papers

An Integrated Simulated Annealing Algorithm for WiFi-based Indoor Positioning

Published in 30th International Computing and Combinatorics Conference (COCOON 2024), 2024

We propose a simulated-annealing-based optimization framework for Time-of-Flight (ToF) indoor localization using Channel State Information (CSI), demonstrating improved accuracy and robustness over traditional methods such as L-BFGS.

Recommended citation: Denghong Luan, Yiheng Zhang, Chen Bin. "An Integrated Simulated Annealing Algorithm for WiFi-based Indoor Positioning." Proceedings of the 30th International Computing and Combinatorics Conference (COCOON 2024).