Researcher

Cristian Danescu-Niculescu-Mizil

Cristian Danescu-Niculescu-Mizil is a Cornell information science professor whose work uses online language to study human social behavior. He earned a computer science PhD at Cornell in 2012 and joined Stanford’s SNAP group for postdoctoral studies in August 2012. His work includes computational models of politeness, language signals that predict betrayal in online Diplomacy games, and ConvoKit, an open-source conversation-analysis toolkit. In 2025, he shared the ICWSM Test of Time Award for his research on antisocial behavior in online communities. As of October 2026, he leads TrAuSt’s experimental and evaluation infrastructure for AI mediators and assistants at Cornell.

Timeline

  1. 2012

    A Cornell computer science PhD

    He earns a computer science PhD at Cornell in 2012.

  2. August 2012

    Stanford postdoctoral studies

    He joins Stanford’s SNAP group for postdoctoral studies in August 2012.

  3. 2013

    Computing linguistic politeness

    In 2013, he and four coauthors introduce a computational framework for identifying linguistic politeness. Their classifier uses domain-independent lexical and syntactic features, approaches human performance, and works across domains.

  4. 2015

    Language signals before betrayal

    In 2015, he is an assistant professor of information science at Cornell and coauthors a study of 145,000 messages from 249 online Diplomacy games. The analysis finds that players who later betray allies become more positive and less polite just before betrayal.

  5. 2018

    An NSF CAREER Award

    In 2018, he receives the National Science Foundation Faculty Early Career Development Award (CAREER).

  6. 2020

    ConvoKit conversation toolkit

    In 2020, he coauthors ConvoKit, an open-source toolkit for analyzing conversations and social interactions. It provides a unified framework for conversational data and a large collection of conversational datasets.

  7. June 2025

    ICWSM Test of Time Award

    In June 2025, ICWSM gives him the Test of Time Award for his 2015 paper, “Antisocial Behavior in Online Discussion Communities.” He shares the award with coauthors Justin Cheng and Jure Leskovec.

  8. As of October 2026

    AI mediation and evaluation at Cornell

    As of October 2026, he is a professor of information science at Cornell, where his research aims to develop computational frameworks for studying human social behavior through online language data. Through TrAuSt, he leads the experimental and evaluation infrastructure and is responsible for open-source tools for AI mediators and assistants that support civic discourse.

Career

  1. NowCornell UniversityAssistant Professor of Information Science
  2. From 2012Stanford UniversityPostdoctoral researcher

Education

  1. 2012Cornell UniversityPhD

Sources and credits

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  1. Lillian Lee: My Students cs.cornell.edu. Checked 22 October 2026.
  2. News – MPI SWS mpi-sws.org. Checked 22 October 2026.
  3. SNAP: Latest news snap-sentiment.stanford.edu. Checked 22 October 2026.
  4. [1306.6078] A Computational Approach to Politeness with Application to Social Factors arxiv.org. Checked 22 October 2026.
  5. Language analysis predicts a coming betrayal | Cornell Chronicle news.cornell.edu. Checked 22 October 2026.
  6. Cristian Danescu-Niculescu-Mizil | Department of Computer Science | Cornell Bowers cs.cornell.edu. Checked 22 October 2026.
  7. ConvoKit: A Toolkit for the Analysis of Conversations - ACL Anthology aclanthology.org. Checked 22 October 2026.
  8. Danescu-Niculescu-Mizil receives ICWSM Test of Time Award | Department of Computer Science | Cornell Bowers cs.cornell.edu. Checked 22 October 2026.
  9. Team — TrAuSt traust.infosci.cornell.edu. Checked 22 October 2026.