Showing 2026Show all
2 papers · 1 filter
cs.LG2026
Weighted Temporal Decay Loss for Learning Wearable PPG Data with Sparse Clinical Labels
Yunsung Chung, Keum San Chun, Migyeong Gwak +6
Advances in wearable computing and AI have increased interest in leveraging PPG for health monitoring over the past decade. One of the biggest challenges in developing health algor…
cs.LG2026
Understanding Diffusion Models via Ratio-Based Function Approximation with SignReLU Networks
Luwei Sun, Dongrui Shen, Feng Chuanwen +3
Motivated by challenges in conditional generative modeling, where the target conditional density takes the form of a ratio f1 over f2, this paper develops a theoretical framework f…