Welcome!

I am a Ph.D. student in the Department of Computer Science, Georgetown University.  I am a member of InfoSense group. My advisor is Prof. Grace Hui Yang. My research interests include Information Retrieval (IR) and Reinforcement Learning (RL). I won the ICTIR Best Student Paper Award.

Before this, I got my Bachelor degree in Computer Science and Technology from Beihang University, China.

Research

Currently, I focus on deep learning in IR, especially dynamic search with reinforcement learning. I have also worked on IR evaluation.

Publications

Zhiwen Tang and Grace Hui Yang. Reinforcement Learning Meets Information Seeking: Dynamic Search Challenge. Machine Learning Competitions for All @ Thirty-third Conference on Neural Information Processing Systems (NeurIPS 2019). Vancouver, Canada. (workshop paper)

Zhiwen Tang and Grace Hui Yang. Dynamic Search — Optimizing the Game of Information Seeking. arXiv Preprint. 

Zhiwen Tang and Grace Hui Yang. DeepTileBars: Visualizing Term Distribution for Neural Information Retrieval. In Proceedings of the Thirty-Third AAAI Conference on Artificial Intelligence (AAAI 2019). Honolulu, Hawaii, USA. [slides]

Zhiwen Tang and Grace Hui Yang. Investigating Per Topic Upper Bound for Session Search Evaluation. In the 3rd ACM International Conference on the Theory of Information Retrieval (ICTIR 2017). Amsterdam, Netherlands. [slides]

Zhiwen Tang and Grace Hui Yang. A Reinforcement Learning Approach for Dynamic Search — Georgetown University at TREC 2017 Dynamic Domain Track. In Proceedings of the Text REtrieval Conference 2017 (TREC 2017). Gaithersburg, MD, USA. (workshop paper)

Grace Hui Yang, Zhiwen Tang, and Ian Soboroff. TREC 2017 Dynamic Domain Track Overview. In Proceedings of the Text REtrieval Conference 2017 (TREC 2017). Gaithersburg, MD, USA. (workshop paper)

Award

ICTIR Best Student Paper Award, 2017

Academic Activities

Student Organizer of TREC 2017 Dynamic Domain track.

Education

Sept 2016 ~ Now, Ph.D. in Computer Science, Georgetown University, Washington, DC, USA.

Sept 2012 ~ June 2016, B.Eng in Computer Science and Technology, Beihang University, Beijing, China.

Work Experience

June 2018 ~ Aug 2018, Applied Scientist Intern @ Amazon.com