Author

Xiao-Zhi Li

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#graph neural networks Open access Sep 2026

Integrated GNSS/LEO precise point positioning using factor graph optimization with heterogeneous graph-based stochastic modeling

Low Earth Orbit (LEO) satellite augmentation can improve the availability and satellite geometry of Precise Point Positioning (PPP). However, most existing Global Navigation Satellite System (GNSS)/LEO PPP methods rely on fixed stochastic models and do not fully exploit the heterogeneous characteristics of GNSS and LEO...

Jia-Le Wang, Jian Li, Xiao-Zhi Li et al. · Satellite Navigation · 0 citations

Open access Sep 2026

Environmental Context-Aware Human Action Recognition from 4D Millimeter-Wave Radar Point Clouds

An environmental context-aware radar action recognition framework (ECRAR) that jointly models human motion and indoor scene context from 4D millimeter-wave radar point clouds and construct InActivity-Scene, a new dataset with fine-grained scene annotations and nine categories of daily and hazardous human actions collec...

Xiao-Zhi Li, Zhipeng Lou, Wei Liang et al. · Italian National Conference... · 0 citations