University of Oxford University of Oxford University of Oxford

About Me

I am a DPhil student in Machine Learning at the Oxford-Man Institute, my background is in mathematics, statistics and computer science. I am supervised by Dr. Xiaowen Dong and worked closely with Prof. Pietro Lio, my focus is in developing Gaussian processes on graph structured data. Currently, I am working with kernel functions on graph spaces applied to supervised and semi-supervised graph prediction problems, where models are designed to make use of various graph convolutions and exhibit transductive qualities for superior performances. I was awarded a PhD studentship from the EPSRC Doctoral Training Partnership (DTP) scheme.

I obtained First Class honours MSci in Mathematics at Imperial College London. In addition to machine learning, I have interests in a range of topics including Monte Carlo and Quasi-Monte Carlo, option pricing and stochastic simulation.

Research & Interests

Papers:

Felix L. Opolka, Yin-Cong Zhi, Pietro Liò, and Xiaowen Dong. "Graph Classification Gaussian Processes via Spectral Features." Conference on Uncertainty in Artificial Intelligence.

Yin-Cong Zhi, Felix L. Opolka, Yin Cheng Ng, Pietro Liò, and Xiaowen Dong. "Transductive Kernels for Gaussian Processes on Graphs." arXiv preprint arXiv:2211.15322 (2022).

*Felix L. Opolka, *Yin-Cong Zhi, Pietro Liò, and Xiaowen Dong. "Adaptive Gaussian Processes on Graphs via Spectral Graph Wavelets." International Conference on Artificial Intelligence and Statistics, pp. 4818-4834. PMLR, 2022.

Yin-Cong Zhi, Yin Cheng Ng, and Xiaowen Dong. "Gaussian processes on graphs via spectral kernel learning." IEEE Transactions on Signal and Information Processing over Networks.

Topics of Interest:

Education

Machine Learning, DPhil 2018-

Research Topic: Gaussian Processes on Graphs.
Department of Engineering Science
University of Oxford

Mathematics, MSci 2014-2018

Master Thesis: Harnessing Monte Carlo and Quasi Monte Carlo Methods in Option Pricing.
Department of Mathematics
Imperial College London

Contact

sann6526@ox.ac.uk

St Anne's College

  • The Oxford-Man Institute
  • University of Oxford
  • Eagle House
  • Walton Well Road
  • Oxford
  • OX2 6ED