About Me

I develop large-scale machine learning systems (e.g., GNN) at Amazon to detect unsafe products violating policies. Previously, I focused on advanced dialogue systems, both open-domain and task-oriented. My expertise spans information retrieval and optimizing interactive systems through user learning, now applied to protect customers and maintain marketplace integrity. (CV Link)

I defended my Ph.D. thesis at University of Amsterdam in 2020. You can find my Ph.D. thesis here.

I joined Amazon in Seattle as an Applied Scientist in the summer of 2021.

Publications at Amazon

- Link

Publications at University of Amsterdam

- Link

Publications at Xiamen Univeristy

Internships

Research Intern

2019 May - 2019 August
Microsoft Research, Redmond

Applied Scientist Intern

2020 May - 2020 August
Amazon Alexa, Seattle

Academic Activities

Reviewing

2016 - present
University of Amsterdam

TOIS, IPM, Information Retrieval journal, AAAI'24, AAAI'23, AAAI'22, CIKM'21, AAAI'21, AAAI'20, ECIR'18, SIGIR'18, CIKM'18, NAACL'19, SIGIR'19, EMNLP'19, NeurIPS'19

Organizing

2021
University of Amsterdam

Neurips 2021 competition "IGLU: Interactive grounded language understanding in a collaborative environment"

Summer School

2017
University of Amsterdam

European Summer School in Information Retrieval 2017, Barcelona, Spain

Teaching Experiences

TAing

2018 - 2019
University of Amsterdam
  • Information Retrieval 1
  • Information Retrieval 2

Supervision

2018 - 2019
University of Amsterdam

Master Theses Supervision:

  • Cyclists’ Route Choice in Amsterdam: Finding Factors of Influence and Predicting Cyclists’ Route ChoicE, with Chris Olberts
  • How to measure a neighborhood: Exploring geo-spatial data enrichment and neighborhood embeddings for housing price prediction, with Guus Bobeldijk
  • Text Classification for Ground Lease Documents, with Rouel de Romas
  • Predicting salary using Job posting data, with Roma Bakhyshov

Awards and Achievements

National Scholarship for outstanding Postgraduate students, China

2014
Xiamen University

National Scholarship for outstanding Postgraduate students, China

2015
Xiamen University

Skills & Proficiency

PyTorch
PySpark
Tensorflow
Numpy