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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).

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.