Ganggang Xu

2 accepted papers

2021

Row-clustering of a Point Process-valued Matrix

Lihao Yin, Ganggang Xu, Huiyan Sang, Yongtao Guan

NeurIPS 2021poster

Structured point process data harvested from various platforms poses new challenges to the machine learning community. To cluster repeatedly observed marked point processes, we propose a novel mixture model of multi-level marked point processes for identifying potential heterogeneity in the observed…

Cited by 7 Source ↗PDF ↗code ↗Scholar ↗

2018

Optimal Tuning for Divide-and-conquer Kernel Ridge Regression with Massive Data

Ganggang Xu, Zuofeng Shang, Guang Cheng

ICML 2018oral

Divide-and-conquer is a powerful approach for large and massive data analysis. In the nonparameteric regression setting, although various theoretical frameworks have been established to achieve optimality in estimation or hypothesis testing, how to choose the tuning parameter in a practically effect…

Cited by 31 Source ↗PDF ↗Scholar ↗