Chun-Hao Chang (Kingsley)

Ph.D. Candidate, Computer Science

kingsley _at_ cs.toronto.edu


Machine Learning Engineer Intern
Ads Ranking Team, Facebook UK
Jun. 2018 - Aug 2018
CS PhD
University of Toronto
Sep. 2016 - Now
Software Engineer
TripNotice Inc.
Jan. 2014 - Mar. 2015



I am studying PhD at Computer Science at University of Toronto with professor Anna Goldenberg and collaborated with David Duvenaud. My interests are on issues of machine learning when they deploy to the real world. My main research works are in the Interpretability and Reinforcement Learning applied to healthcare. I am also broadly interested in Causal Inference and Time-series Modeling.


Selected Publications

Explaining Image Classifiers by Counterfactual Generation
Chun-Hao Chang, Elliot Creager, Anna Goldenberg, David Duvenaud
2019 ICLR Poster
Dynamic Measurement Scheduling for Adverse Event Forecasting using Deep RL
Chun-Hao Chang*, Mingjie Mai*, Anna Goldenberg
2018 NIPS MLHC Workshop; Submitted to 2019 ICML
Dropout Feature Ranking for Deep Learning Models
Chun-Hao Chang, Ladislav Rampasek, Anna Goldenberg
2017 NIPS MLCB workshop

Work Experiences

Software Engineer Intern
I interned in the Ads Ranking team of Facebook UK during 2018 summer. My main work is to model counterfactual inference of the ads data to measure lift effects of ads exposure. I investigated various causal approach such as nearest neighbor, causal trees and multi-task learning.
Software Engineer
I interned from 2015 to 2016 in startup company Tripnotice. I built Android app with 500 active daily user, 30,000 downloads and rated as top 5 best travel app in local Taipei newspaper. Besides, I improved hotel recommendation system and constructed hotel booking API with Amadeus.
Android Developer
During my Bachelor, I interned in NTU to develop app for the school course system. I implemented a cross-platform app for student courses information in NTU and obtained 4.3/5 review score and 1,000 downloads in Google Play.

Other Stuffs

Teaching
I was a TA for the following courses:
Miscellaneous Slides
Presentation I made before:
Interests
I have played volleyball in my undergrad and our graduate volleyball intramural games.