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Yuangang Li

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Open access Oct 2026

H-FedSN: personalized sparse networks for efficient and accurate hierarchical federated learning for IoT applications

With the rapid development of the Internet of Things (IoT), federated learning (FL) has gained increasing attention for its privacy-preserving use of distributed data. However, conventional two-tier FL architectures are poorly suited to the hierarchical and heterogeneous nature of real-world IoT systems. Hierarchical...

Jie-Chao Gao, Yuan-Gang Li, Jie Wang et al. · 1 citation
#artificial intelligence Preprint Sep 2026

The Geometry of Logic: Stratification Induces Semantic Structure and Robust Reasoning

STRAT is introduced, which partitions the residual stream into orthogonal Data and Type subspaces and uses Type-based attention and gating to govern Data transformations and in arithmetic, STRAT reduces median OOD error 35-fold relative to a Transformer baseline.

Cristina V. Lopes, Yuan-Gang Li, Justin Tian Jin Chen et al. · 0 citations
#artificial intelligence Review Sep 2026

Harbor Adapters and Harbor-Index: Infrastructure and a Curated Meta-Dataset for Large-Scale Agentic Evaluation

Harbor Adapters are developed that port more than 80 benchmarks to evaluate arbitrary agents, and validated through rigorous code review and parity experiments, and Harbor-Index is introduced, a curated set of 82 difficult, diverse, and high-quality tasks spanning 29 benchmarks to support more reliable and comprehensiv...

Lin Shi, Hao-Wei Lin, Zi-Xuan Zhu et al. · 1 citation

Beyond Output Correctness: Benchmarking and Evaluating Large Language Model Reasoning in Coding Tasks

This work introduces CodeRQ-Bench, the first benchmark for evaluating LLM reasoning quality across three coding task categories: generation, summarization, and classification, and proposes VERA, a two-stage evaluator that combines evidence-grounded verification with ambiguity-aware score correction.

Yuangang Li, Justin Tian Jin Chen, Ethan Yu et al. · 1 citation

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