Philip Guo (Phil Guo, Philip J. Guo, Philip Jia Guo, pgbovine)

My research spans human-computer interaction, online learning, and data science.


Philip Guo is an assistant professor of computer science at the University of Rochester. His research spans human-computer interaction, online learning, and data science. To enable learning programming at scale, he created Python Tutor (, a code visualization and social learning platform that has been used by over 1.5 million people in over 180 countries to visualize over 15 million pieces of code.

Philip received S.B. and M.Eng. degrees in EECS from MIT in 2006 and a Ph.D. in Computer Science from Stanford in 2012. His Ph.D. dissertation was one of the first to create productivity tools for data scientists. Before becoming a professor in 2014, he built online learning tools at Google, edX, and MIT CSAIL.

Philip's website contains over 250 articles (including The Ph.D. Grind) and gets over 750,000 page views per year. He has also written for MIT Technology Review, O'Reilly Radar, Quartz, and Slate.

Awards and Honors

  • Google Faculty Research Award (2015)

  • CHI Honorable Mention Paper (2014)

  • ICSE Software Engineering In Practice Best Paper Award (2012)

  • ACM SIGSOFT Distinguished Paper Award (2009)

  • CHI Honorable Mention Paper (2009)

  • NSF and NDSEG Fellowships (2006–2011)


  • NSF. CRII: CHS: Scaling Up Online Peer Tutoring of Computer Programming (sole PI, 2015–2017)

  • Google Faculty Research Award. Enabling Learners to Create Hierarchical Tutorials from How-To Videos on YouTube (sole PI, 2015)

  • University of Rochester. University Research Award: Enabling Fast and Scalable Feedback on Writing (sole PI, 2015)

  • Microsoft Research. Online Python Tutor for Office Mix (sole PI, 2014)

Sample Publications

These papers represent the kinds of research that I do. See my publications page for a more complete list.

Codeopticon: Real-Time, One-To-Many Human Tutoring for Computer Programming. Philip J. Guo. ACM Symposium on User Interface Software and Technology (UIST), Nov 2015.
[PDF | blog post | Behind the scenes]

How Video Production Affects Student Engagement: An Empirical Study of MOOC Videos. Philip J. Guo, Juho Kim, Rob Rubin. ACM Conference on Learning at Scale, March 2014.
[PDF | blog post | Behind the scenes]

Data-Driven Interaction Techniques for Improving Navigation of Educational Videos. Juho Kim, Philip J. Guo, Carrie J. Cai, Shang-Wen (Daniel) Li, Krzysztof Z. Gajos, Robert C. Miller. ACM Symposium on User Interface Software and Technology (UIST), Oct 2014.
[PDF | webpage | Behind the scenes]

Proactive Wrangling: Mixed-Initiative End-User Programming of Data Transformation Scripts. Philip J. Guo, Sean Kandel, Joseph M. Hellerstein, Jeffrey Heer. ACM Symposium on User Interface Software and Technology (UIST), October 2011.
[PDF | commercial version: Trifacta | Behind the scenes]

Burrito: Wrapping Your Lab Notebook in Computational Infrastructure. Philip J. Guo and Margo Seltzer. USENIX Workshop on the Theory and Practice of Provenance (TaPP), June 2012.
[PDF | webpage | Behind the scenes]

See more publications.

Current Students

  • Jaime Montoya (Ph.D., Rochester)
  • Xiong Zhang (Ph.D., Rochester)
  • Jeremy Warner (masters, Rochester)
  • Mitchell Gordon (undergrad, Rochester)
  • Dan Hassin (undergrad, Rochester)
  • Emy Lin (undergrad, Rochester)
  • Annie Zhang (undergrad, Rochester)
  • Joyce Zhu (undergrad, Rochester)

Former Students and Alumni

  • Logan Gittelson (Ph.D., Rochester)
  • Davide Berdin (masters, visiting Rochester from Uppsala University)
  • Dan Scarafoni (masters, Rochester)
  • Jeffery White (masters, Rochester)
  • Renan Zanelatto (masters, Rochester)
  • Karina Banda (undergrad, Rochester)
  • Lenny Brown (undergrad, Rochester)
  • Jennifer Kate Godzicki (undergrad, Rochester)
  • Sara Lickers (undergrad, Rochester)
  • Doug Miller (undergrad, Rochester)
  • Irene Chen (undergrad, MIT)
  • Anvisha Pai (undergrad, MIT)


University of Rochester


  • 6.813: User Interface Design & Implementation (Spring 2014)
    • co-taught with Rob Miller, Daniel Jackson, and David Karger
  • 6.170: Laboratory in Software Engineering (Spring 2006), TA


  • CS343: Advanced Topics in Compilers (Spring 2012), TA
  • CS242: Programming Languages (Autumn 2009), TA
  • CS243: Advanced Compiling Techniques (Winter 2008), TA