Presentation at SAGI Symposium 2020

This is the joint presentation by me and Suman at SAGI Symposium 2020.

Good PP check and R square but large Pareto k values

Recently, I encountered a problem with using PSIS and Pareto k for model diagnostics and selection. Some models have good posterior predictive checking performance but a few terrible Pareto k values. And sometimes, a model with more high k values might be misspecified.

Single Site Ofe

Presentation at IBS 2019

This is the presentation that I gave on 5th December at IBS 2019 Adelaide.

The Optimal We Found Is Not The Best We Want

Model Selection

分享一下在新西兰打官司(维权)的经历

事情已经过去快2年了,今天闲来无事,回想了一下过去几年发生在自己身上的事,觉得这件事可以分享出来,给在国外留学和生活的朋友们一点建议和意见。同时也鼓励大家,在外求学生活不易,遇事不要慌,也不必忍气吞声,必要时学会用法律武器维护自己的权益。

Department Seminar, 2018

A seminar at the Department of Maths & Stats, University of Otago, in July 2018.

Poster at Bayes Comp 2018, Barcelona

This is the poster of the work done with my supervisor Dr. Matthew Parry. The poster was given at the conference Bayes Comp 2018, Barcelona.

Presentation at ICSA Shanghai 2016

The first international conference that I attended at Dec 2016. This is part of the work during my PhD at the University of Otago.