Pei Zhou

Pei Zhou

I am a final-year PhD candidate in computer science at University of Southern California, where I work in the USC-NLP Group. My advisors are Xiang Ren and Jay Pujara. I'm interested in building and evaluating communicating agents based on large language models (LLM), with a focus on theory-of-mind and reasoning to reach common ground.

Previously, I received undergraduate degree in Mathematics of Computation from University of California, Los Angeles (UCLA), where I worked with Kai-Wei Chang and Yizhou Sun. I've also spent time at the Allen Institute for Artificial Intelligence (AI2) (working with Prithviraj Ammanabrolu, Chris Callison-Burch, and Yejin Choi), and the Amazon Alexa AI (working with Yang Liu and Dilek Hakkani-Tur).

Currently, I am a Research Intern at Google Bard (working with Shyam Upadhyay, Manaal Faruqui, Swaroop Mishra, and Aida Nematzadeh).
I'm will be actively looking for full-time research jobs starting fall 2023! If you are hiring and interested, drop me an email, I'm more than happy to chat :-)

[Full CV] [Twitter] [Github] [Google Scholar] [Semantic Scholar]

Recent News

  • [July 2023] Attending ACL at Toronto, come say hi! I'll be presenting our paper on a Dungeon Master-like dialogue agent in D&D with theory-of-mind and RL!
  • [May 2023] Started my internship at Google Bard working on theory-of-mind capabilities in LLMs!
  • [April 2023] Our Theory-of-Mind workshop is accepted in ICML 2023! Hope to see you in Honolulu in July!


Aug 2019 - Present (Expected May 2024)
Ph.D. in Computer Science, University of Southern California

Sep 2015 - June 2019
B.S. in Mathematics of Computation with Minor in Statistics, University of California, Los Angeles (UCLA)

Selected Publications

(Full list see Google Scholar)

  • I Cast Detect Thoughts: Learning to Converse and Guide with Intents and Theory-of-Mind in Dungeons and Dragons
    Pei Zhou, Andrew Zhu, Jennifer Hu, Jay Pujara, Xiang Ren, Chris Callison-Burch, Yejin Choi, and Prithviraj Ammanabrolu.
    In ACL, 2023.
    [abstract] [media coverage]

  • Reflect, Not Reflex: Inference-Based Common Ground Improves Dialogue Response Quality
    Pei Zhou, Hyundong Cho, Pegah Jandaghi, Dong-Ho Lee, Bill Yuchen Lin, Jay Pujara, and Xiang Ren.
    In EMNLP, 2022.
    [abstract] [project page] [dataset] [media coverage]

  • Think Before You Speak: Explicitly Generating Implicit Commonsense Knowledge for Response Generation
    Pei Zhou, Karthik Gopalakrishnan, Behnam Hedayatnia, Seokhwan Kim, Jay Pujara, Xiang Ren, Yang Liu, and Dilek Hakkani-Tur.
    In ACL, 2022.
    [abstract] [media coverage]

  • Probing Commonsense Explanation in Dialogue Response Generation
    Pei Zhou, Pegah Jandaghi, Hyundong Cho, Bill Yuchen Lin, Jay Pujara, and Xiang Ren.
    In EMNLP-Findings, 2021.

  • Lawyers are Dishonest? Quantifying Representational Harms in Commonsense Knowledge Resources
    Ninareh Mehrabi*, Pei Zhou* (equal contribution), Fred Morstatter, Jay Pujara, Xiang Ren, and Aram Galstyan.
    In EMNLP, 2021.

  • RICA: Evaluating Robust Inference Capabilities Based on Commonsense Axioms
    Pei Zhou, Rahul Khanna, Seyeon Lee, Bill Yuchen Lin, Daniel Ho, Jay Pujara, and Xiang Ren,
    In EMNLP, 2021.
    [abstract] [project page] [data]

  • Commonsense-Focused Dialogues for Response Generation: An Empirical Study
    Pei Zhou, Karthik Gopalakrishnan, Behnam Hedayatnia, Seokhwan Kim, Jay Pujara, Xiang Ren, Yang Liu, and Dilek Hakkani-Tur.
    In SIGDIAL, 2021.
    [abstract] [data] [Amazon blog]

  • CommonGen: A Constrained Text Generation Challenge for Generative Commonsense Reasoning
    Bill Yuchen Lin, Wangchunshu Zhou, Ming Shen, Pei Zhou, Chandra Bhagavatula, Yejin Choi, and Xiang Ren.
    In EMNLP-Findings, 2020.
    [abstract] [project page] [data] [media coverage]

  • Examining Gender Bias in Languages with Grammatical Gender
    Pei Zhou, Weijia Shi, Jieyu Zhao, Kuan-Hao Huang, Muhao Chen, Ryan Cotterell, and Kai-Wei Chang.
    In EMNLP-IJCNLP, 2019.
    [abstract] [code]



  • I play the piano and am a keyboardist in UCLA Accoustic Guitar Band called Parked in 4 East
  • I was born in Chengdu, a great city for vacation and spicy food lovers :)
  • Currently super into camping/glamping!
  • I'm into all kinds of RPGs from tabletop to ffxiv
  • Thanks to Nelson Liu for sharing source code of the website!