Researcher

Deb Roy

Also known as Deb Kumar Roy

Deb Roy is a professor of media arts and sciences at MIT, where he directs the Center for Constructive Communication and leads research on human-AI systems for dialogue. His Human Speechome Project recorded nearly all of his infant son's waking hours from 2006 to 2009, and his 2011 TED talk followed how his son learned language. Roy co-founded Bluefin Labs in 2008, a social TV analytics company that Twitter acquired in 2013. In 2018 his study of false news, written with Soroush Vosoughi and Sinan Aral, became a Science cover story. Across 2025 and 2026 he co-authored a paper on conversation networks and published an Atlantic essay on large language models.

Works
245
Citations
18,860
h-index
40

Publication numbers from OpenAlex, as of 15 October 2026.

Timeline

  1. By 1999

    Learning words from sights and sounds

    He grows up in Winnipeg and spends much of his childhood in Calcutta. He earns a Bachelor of Applied Science at the University of Waterloo and completes his MIT PhD in 1999 with the dissertation 'Learning Words from Sights and Sounds: A Computational Model.'

  2. 2006–2011

    The Human Speechome Project

    He records nearly all of his infant son's waking hours for the Human Speechome Project, which runs from 2006 to 2009. In 2011 his TED talk 'The birth of a word' traces how his son learns language.

  3. 2008–2013

    Co-founding Bluefin Labs

    He co-founds Bluefin Labs in 2008, a social TV analytics company, and Twitter acquires it in 2013.

  4. 2013–2017

    Twitter's chief media scientist

    He serves as Twitter's chief media scientist from 2013 to 2017. In 2014 the Laboratory for Social Machines starts with $10 million from Twitter over five years.

  5. 2018

    A Science cover on false news

    In 2018 he publishes 'The spread of true and false news online' in Science with Soroush Vosoughi and Sinan Aral, and the study is the magazine's cover story.

  6. 2019–2021

    Executive director of the Media Lab

    He serves as executive director of the MIT Media Lab from 2019 to 2021.

  7. 2025–2026

    Conversation networks and an Atlantic essay

    In 2025 he co-authors the arXiv paper 'Conversation Networks' with Lawrence Lessig and Audrey Tang. In February 2026 his essay 'Words Without Consequence' appears in The Atlantic, arguing that large language models produce speech without any speaker who bears consequence.

  8. As of October 2026

    Directing MIT's Center for Constructive Communication

    He is a professor of media arts and sciences at MIT, and he directs the MIT Center for Constructive Communication, where he leads research on human-AI systems for dialogue, listening, and deliberation.

Sources and credits

Photo: We have no published photo of Deb Roy yet. Send us a free-licensed photo.

  1. Overview ‹ Deb Roy — MIT Media Lab media.mit.edu. Checked 15 October 2026.
  2. Deb Roy - The Mathematics Genealogy Project mathgenealogy.org. Checked 15 October 2026.
  3. Media Lab project explores language acquisition news.mit.edu. Checked 15 October 2026.
  4. Deb Roy - Wikipedia en.wikipedia.org. Checked 15 October 2026.
  5. The Human Speechome Project media.mit.edu. Checked 15 October 2026.
  6. Deb Roy: The birth of a word | TED Talk ted.com. Checked 15 October 2026.
  7. Professor Deb Roy - MIT Center for Constructive Communication ccc.mit.edu. Checked 15 October 2026.
  8. Words Without Consequence - Cortico cortico.ai. Checked 15 October 2026.