About Me

I'm a first-year Computer Science Ph.D. student at Rice University working with Prof. Moshe Vardi. My current research interests are in model counting and sampling. Previously, I received my B.S. from Computer Science Dept. in Nanjing University, advised by Prof. Gong Cheng and did some work of Question Answering.

Education

Rice University Sep 2018 -

Ph.D. in Computer Science

Nanjing University, National Elite Program Sep 2014 - Jun 2018

B.S. in Computer Science

Publications

Zhiwei Zhang, Lingling Zhang, Hao Zhang, Weizhuo He, Zequn Sun, Gong Cheng, Qizhi Liu, Xinyu Da, Yuzhong Qu. Towards Answering Geography Questions in Gaokao: A Hybrid Approach. [pdf] [slides]

In Proceedings of the 2018 China Conference on Knowledge Graph and Semantic Computing (CCKS'18), to appear.
  • Answering Geography Questions requires lots of reasonings so that traditional QA cannot work
  • Proposed an auto-constructed and auto-extended knowledge graph in a knowledge-driven system to solve geography questions
  • Used POS tag, sematic mapping, keywords extraction and random walk on knowledge graph
  • Achieved encouraging F-1 Score of 0.3 considering the baseline was below 0.1 in experiment and improved the score by 22% in a real test

Talks

"Fourier Analysis on Boolean Functions and its Applications", LAPIS meeting, Rice University Oct 18, 2018

Teaching

Teaching Assistant for Problem Solving(III), Nanjing University Sep 2017 - Jan 2018

Awards

  • First Prize, National Elite Program Scholarship (top 10% in Elite Program) CS Dept., Nanjing University, 2017
  • Elite student (top 5% in university) Nanjing University, 2016
  • First Prize in Province (top 3% of all competitors), the Mathematical Competition of Senior High School of China 2013

Hobbies

  • Music: singing, playing piano
  • (e)Sports: table tennis, badminton, Dota, FIFA

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