3 papers
cs.LG2026
FreSH: Frequency-Segmented Hierarchical Multi-Expert Framework for Multivariate Time Series Classification
Pingping Liu, Muyao Wang, Zijian Zhang +5
Multivariate Time Series Classification (MTSC) demands models that can effectively capture complex temporal patterns across multiple scales while remaining computationally efficien…
cs.ET2026
UrbanMoE: A Sparse Multi-Modal Mixture-of-Experts Framework for Multi-Task Urban Region Profiling
Pingping Liu, Jiamiao Liu, Zijian Zhang +5
Urban region profiling, the task of characterizing geographical areas, is crucial for urban planning and resource allocation. However, existing research in this domain faces two si…
cs.CV2023
Deep Metric Learning Assisted by Intra-variance in A Semi-supervised View of Learning
Liu Pingping, Liu Zetong, Lang Yijun +2
Deep metric learning aims to construct an embedding space where samples of the same class are close to each other, while samples of different classes are far away from each other.…