596 citations · 1.3k across the 18 of their papers we have counts for
18 papers
Identifying Heterogeneity in Distributed Learning
Zelin Xiao, Jia Gu, Song Xi Chen
We study methods for identifying heterogeneous parameter components in distributed M-estimation with minimal data transmission. One is based on a re-normalized Wald test, which is…
Weighted Distributed Estimation under Heterogeneity
Jia Gu, Songxi Chen
This paper considers distributed M-estimation under heterogeneous distributions among distributed data blocks. A weighted distributed estimator is proposed to improve the efficienc…
A Review on the Optimal Fingerprinting Approach in Climate Change Studies
Hanyue Chen, Song Xi Chen, Mu Mu
We provide a review on the "optimal fingerprinting" approach as summarized in Allen and Tett (1999) from a point view of statistical inference in light of the recent criticism of M…
Concentration Inequalities for Statistical Inference
Huiming Zhang, Song Xi Chen
This paper gives a review of concentration inequalities which are widely employed in non-asymptotical analyses of mathematical statistics in a wide range of settings, from distribu…
Analyzing China's Consumer Price Index Comparatively with that of United States
Zhenzhong Wang, Yundong Tu, Song Xi Chen
This paper provides a thorough analysis on the dynamic structures and predictability of China's Consumer Price Index (CPI-CN), with a comparison to those of the United States. Desp…
Matrix Completion under Low-Rank Missing Mechanism
Xiaojun Mao, Raymond K. W. Wong, Song Xi Chen
Matrix completion is a modern missing data problem where both the missing structure and the underlying parameter are high dimensional. Although missing structure is a key component…