About Me

I'm a PhD candidate in the MIT Department of Brain and Cognitive Sciences, supervised by Josh Tenenbaum. My research centers on structured Bayesian modelling for concept learning and perception, both with the goal to develop better computational models of human cognition and to develop more interpretable and robust machine intelligence. My technical interests include probabilistic programming (for specifying knowledge) and deep learning and meta-evolutionary algorithms (for using it).

That said, I am increasingly worried about the implications of machine intelligence and the ways it's likely be used by the society it comes of age in. I think it's well-justified to be very concerned about things like data privacy, propaganda, autonomous weapons, mass unemployment, and particularly the interaction of these risks against a growing backdrop of authoritarian politics, economic inequality, and ecological crises. If you're thinking about how to increase the probability that AI ends up being a net-positive for the world, I'd really like to hear from you.

You can contact me at lbh@mit.edu or lhewitt@protonmail.com

Talks, papers, etc.

Memoised wake-sleep: paper (in submission, UAI 2019)
with Josh Tenenbaum

SketchAdapt: paper (in submission, ICML 2019)
with Max Nye, Josh Tenenbaum, Armando Solar-Lezama

Inferring Structured Visual Concepts from Minimal Data: paper (CogSci 2019)
with Peng Qian, Josh Tenenbaum, Roger Levy

Variational Homoencoder: GitHubpaperoral presentation (UAI 2018)
with Max Nye, Andreea Gane, Tommi Jaakkola, Josh Tenenbaum

Bayesian Auditory Scene Analysis: websitepaperoral presentation (CogSci 2018)
with Maddie Cusimano, Josh Tenenbaum, Josh McDermott

Tutorial on Bayesian Inference In Generative Models: video (CBMM, 2018)
with Maddie Cusimano

Deep Learning & Art projects: Gen Studio @ The Met (2019)Mind the Machine (2017)
with Sarah Schwettmann, Maddie Cusimano

Writing on AI: [thinking machines]


Awards & Fellowships

2019 Walle Nauta Award for Continued Dedication to Teaching, MIT
2018 Angus MacDonald Award for Excellence in Undergraduate Teaching, MIT
2017 Angus MacDonald Award for Excellence in Undergraduate Teaching, MIT
2016 Second place finalist, Flame Challenge for science communication.
2015-2017 Henry E. Singleton (1940) Fellowship, MIT
2015 Dean’s List Commendation for Outstanding Academic Performance, UCL
2014 Vacation Bursary Award, Engineering and Physical Sciences Research Council