Research

PUBLICATIONS

• 1. Linear Multifractional Stable Sheets in the Broad Sense: Existence and Joint Continuity of Local Times

Yujia Ding*, Qidi Peng, and Yimin Xiao

Bernoulli Journal, to appear

Preprint at arXiv:2106.13331 [math.PR], 2021

• 2. Boaren: Improving Regularization in Linear Regression with an Application to Index Tracking

John E. Angus*, Yujia Ding, and Qidi Peng

Special Issue of Applied Finance Letters in honor of Bob Webb, 11(1): 36-51, 2022

• 3. Optimal Control of the SIR Model with Constrained Policy, with an Application to COVID-19

Yujia Ding and Henry Schellhorn*

Mathematical Biosciences, 344: 108758, 2022

Preprint at arXiv:2105.08848 [math.OC], 2021

• 4. Who Determines United States Healthcare Out-of-pocket Costs: Factor Ranking and Selection using Ensemble Learning

Chengcheng Zhang*, Yujia Ding, and Qidi Peng

Health Information Science and Systems, 9: 22, 2021

• 5. Series Representation of Jointly S⍺S Distribution via Symmetric Covariations

Yujia Ding* and Qidi Peng

Communications in Mathematics and Statistics, 9(2): 203-238, 2021

Preprint at arXiv:1910.00675 [math.ST], 2019

• 6. On the Ratio of Current Age to Total Life for Null Recurrent Renewal Processes

John E. Angus* and Yujia Ding

Statistics and Probability Letters, 162: 108745, July 2020

• 7. Media Coverage, Investors’ Behavior and Fund Cash Flow

Miaoxin Chen* and Yujia Ding

9th Financial Conference of China, 2012

SUBMISSIONS AND PREPRINTS

• 1. How Do Demand-side Incentives Relate to Insurance Transitioning Behavior of Public Health Insurance Enrollees? A Novel Voting Ensemble Approach for Ranking Factors of Mixed Data Types

Chengcheng Zhang*, Yujia Ding, Qidi Peng

Submitted, 2022

• 2. Variable Selection via the Arbitrary Rectangle-range Generalized Elastic Net

Hansen Chen, Yujia Ding*, Qidi Peng, and Zhengming Song

Python library: generalized-elastic-net

Preprint at arXiv:2112.07785 [stat.ML], 2021

Submitted, 2021

• 3. Accelerometer-Based Gait Segmentation: Simultaneously User and Adversary Identification

Yujia Ding and Weiqing Gu

Preprint at arXiv:1910.06149 [eess.SP], 2019

* corresponding author