Author

Haiyan Wang

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Preprint Aug 2026

On Finite Gaussian Mixtures: Finiteness of the Number of Modes and an Application to NPMLE

We prove that every isotropic Gaussian mixture with finitely many components has finitely many modes. In one dimension, classical theory of Chebyshev systems gives the sharp bound of at most $n$ modes for an $n$-component mixture. In several dimensions, however, it has remained open whether every such mixture has finit...

Haiyan Wang · 4 citations · ⚡1

Open access Jul 2026

TCM-USP: An Adaptive and Interpretable Framework for Rapid, Traceable Preliminary Quantification of Active Constituents in Traditional Chinese Medicines Using Biomimetic Sensor Data

Biomimetic sensors offer a rapid route for estimating active constituent contents in Chinese medicinal materials, but their practical use at procurement sites and production workshops is constrained by small and skewed datasets, repeated task-specific model configuration, and the limited operational traceability of man...

Xuemei Yin, Pengfei Song, Xiao Luo et al. · Chemosensors · 0 citations