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Department of Pure Mathematics and Mathematical Statistics

I am a postdoctoral research associate in Statistics, supervised by Professor Richard J. Samworth. I am also a Teaching By-Fellow at Churchill College.

My research interests include shape-constrained density estimation and regression, as well as the statistical analysis of approximate message passing (AMP) algorithms.

Education

2017–2021: PhD in Statistics, University of Cambridge, supervised by Professor Richard J. Samworth. Thesis: Topics in shape-constrained inference.

2013–2017: BA and MMath, Trinity College, University of Cambridge.

Publications and preprints

Feng, O. Y., Venkataramanan, R., Rush, C. and Samworth, R. J. (2022). A unifying tutorial on Approximate Message PassingFoundations and Trends in Machine Learning15, 335–536.

Feng, O. Y., Chen Y., Han, Q., Carroll, R. J. and Samworth, R. J. (2022). Nonparametric, tuning-free estimation of S-shaped functionsJ. Roy. Statist. Soc., Ser. B, to appear. Accompanying R package: Sshaped

Feng, O. Y., Guntuboyina, A., Kim, A. K. H. and Samworth, R. J. (2021). Adaptation in multivariate log-concave density estimation. Ann. Statist., 49, 129–153.

Teaching and other activities

In Lent 2022, I taught a graduate course on Nonparametric Inference under Shape Constraints.

I have supervised the following undergraduate courses: Part IA Probability; Part IB Linear Algebra, Markov Chains, Statistics and Optimisation; Part II Mathematics of Machine Learning, Principles of Statistics and Probability and Measure. I have also given examples classes for the Part III Topics in Statistical Theory course.

I am a member of the Statistics Clinic team.

Publications

Different Cytokine Patterns in BMPR2-Mutation-Positive Patients and Patients With Pulmonary Arterial Hypertension Without Mutations and Their Influence on Survival.
M Schwiening, EM Swietlik, D Pandya, K Burling, P Barker, OY Feng, CM Treacy, S Abreu, SJ Wort, J Pepke-Zaba, S Graf, SJ Marciniak, NW Morrell, E Soon
– CHEST Journal
(2022)
161,
1651
Nonparametric, tuning‐free estimation of S‐shaped functions
OY Feng, Y Chen, Q Han, RJ Carroll, RJ Samworth
– Journal of the Royal Statistical Society Series B: Statistical Methodology
(2022)
S70 Effectiveness of different parameters at admission as prognostic markers for mortality due to SARS-CoV-2: a 2-centre experience in UK and Spain
ME Shuvo, M Schwiening, F Soares, R Thompson, O Feng, RJ Samworth, NW Morrell, SJ Marciniak, W Thomas, E Soon
– Gazing through the crystal ball: predicting outcomes from COVID-19
(2021)
76,
a46.1
Adaptation in multivariate log-concave density estimation
OY Feng, A Guntuboyina, AKH Kim, RJ Samworth
– Annals of Statistics
(2021)
49,
129
Topics in shape-constrained inference
O Feng
(2020)

Room

D0.16

Telephone

01223 339791