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Xiaocong Xu

10 papers hereh-index 448 citations15 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • middle author3
  • last author7

Across the 10 of 10 papers where every author was matched, so the position is known.

fields
  • math.ST4
  • math.PR3
  • stat.ML3
same name
  • Xiaocong Xu — 3 papers, h 3
  • Xiaocong Xu — 1 paper, h 25

Either other researchers who publish under this name, or the same person where the external sources have not merged their records.

identity via Semantic Scholar / OpenAlex

activity
20222026
most citedSpectral Statistics of Sample Block Correlation Matrices

3 citations · 7 across the 9 of their papers we have counts for

collaborators
Showing 2024Show all

3 papers · 1 filter

math.ST2024

Gradient descent inference in empirical risk minimization

Qiyang Han, Xiaocong Xu

Gradient descent is one of the most widely used iterative algorithms in modern statistical learning. However, its precise algorithmic dynamics in high-dimensional settings remain o…

stat.ML2024

Allocation Stability and Wald Inference under Variance-Aware UCB

Yingying Fan, Yuxuan Han, Jinchi Lv +2

Allocation stability is often used to justify Gaussian inference from bandit data, but when is it necessary? In this paper, we address this question for a two-armed, fixed-horizon…

math.PR2024

Phase transition for the bottom singular vector of rectangular random matrices

Zhigang Bao, Jaehun Lee, Xiaocong Xu

In this paper, we consider the rectangular random matrix X=(xij​)∈RN×n whose entries are iid with tail P(∣xij​∣>t)∼t−α for some α>0.…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.