Expertise index

Find the people who know the subject

Search public expertise, recent signals and peer connections—not follower popularity alone.

2,397 searchable experts 4,280 tracked across all sources

Showing 1–48 of 2,397. Trust means peer connections inside the directory; expertise labels come from public profile evidence.

Margaret Mitchell

Researcher at Hugging Face working on ML and ethics

@mmitchell.bsky.social

Why they matter Researcher at Hugging Face working on ML and ethics with public evidence across AI research and Responsible AI.

Researcher trying to shape AI towards positive outcomes. ML & Ethics +birds. Generally trying to do the right thing. TIME 100 | TED speaker | Senate testimony provider…

Latest measured signal Meta's Muse Is Better at Surveilling Than Helping Me wired.com · 8d ago
1050 peer trust 7 signals / 30d active 8d ago

Melanie Mitchell

Professor at the Santa Fe Institute, AI and cognitive science

@melaniemitchell.bsky.social

Why they matter Professor at the Santa Fe Institute, AI and cognitive science with public evidence across AI research.

Professor, Santa Fe Institute. Research on AI, cognitive science, and complex systems. Website: https://melaniemitchell.me Substack: https://aiguide.substack.com/

Latest measured signal myfloridalegal.com myfloridalegal.com · 21h ago
981 peer trust 7 signals / 30d active 21h ago

Mark Riedl

Professor of AI at Georgia Tech, storytelling and safety

@markriedl.bsky.social

Why they matter Professor of AI at Georgia Tech, storytelling and safety with public evidence across AI research and AI business.

AI for storytelling, games, explainability, safety, ethics. Professor at Georgia Tech. Director of ML Center at GT. Time travel expert. Geek. Dad. he/him

Latest measured signal These Tech Workers Made ChatGPT Drive a Toyota Corolla 404media.co · 5h ago
877 peer trust 86 signals / 30d active 1h ago

Emily M. Bender

Professor of linguistics at the University of Washington

@emilymbender.bsky.social

Why they matter Professor of linguistics at the University of Washington with public evidence across NLP & language and AI research.

Book: https://thecon.ai Web: https://faculty.washington.edu/ebender

Latest measured signal These Tech Workers Made ChatGPT Drive a Toyota Corolla 404media.co · 4h ago
869 peer trust 62 signals / 30d active 4h ago

Naomi Saphra

NLP and interpretability researcher

@nsaphra.bsky.social

Why they matter NLP and interpretability researcher with public evidence across AI research and Agents & robotics.

Waiting on a robot body. All opinions are universal and held by both employers and family. ML/NLP professor. nsaphra.net

Latest measured signal Anthropic announces its molecular research group and laboratory anthropic.com · 5d ago
820 peer trust 4 signals / 30d active 1d ago

Maria Antoniak

Assistant professor of CS, NLP and cultural analytics

@mariaa.bsky.social

Why they matter Assistant professor of CS, NLP and cultural analytics with public evidence across AI research and Culture, work & education.

NLP, cultural analytics. Assistant Professor of CS at University of Colorado Boulder. Books, bikes, games, art. https://maria-antoniak.github.io

Latest measured signal cambridge.org cambridge.org · 23h ago
810 peer trust 24 signals / 30d active 3h ago

Nathan Lambert

Post-training researcher at Ai2, writes Interconnects

@natolambert.bsky.social

Why they matter Post-training researcher at Ai2, writes Interconnects with public evidence across Agents & robotics and AI research.

A LLN - large language Nathan - (RL, RLHF, society, robotics), athlete, yogi, chef Writes http://interconnects.ai At Ai2 via HuggingFace, Berkeley, and normal places

Latest measured signal noahpinion.blog noahpinion.blog · 23h ago
793 peer trust 14 signals / 30d active 23h ago

Arvind Narayanan

Princeton computer science professor, AI Snake Oil

@randomwalker.bsky.social

Why they matter Princeton computer science professor, AI Snake Oil with public evidence across AI research and Compute & infrastructure.

Princeton computer science prof. I write about the societal impact of AI, tech ethics, & social media platforms. https://www.cs.princeton.edu/~arvindn/ BOOK: AI Snake …

Latest measured signal What will be left for us to work on? normaltech.ai · 11d ago
784 peer trust 3 signals / 30d active 9d ago

Eugene Vinitsky

Reinforcement learning and autonomy researcher

@eugenevinitsky.bsky.social

Why they matter Reinforcement learning and autonomy researcher with public evidence across Agents & robotics and AI research.

Anti-cynic. Towards a weirder future. Reinforcement Learning, Autonomous Vehicles, transportation systems, the works. Asst. Prof at NYU https://emerge-lab.github.io ht…

Latest measured signal Lea - Attendees · COLM 2026 lea.ac · 1d ago
733 peer trust 13 signals / 30d active 4h ago

Abeba Birhane

Assistant Professor of AI, founder of the AI Accountability Lab

@abeba.blacksky.app

Why they matter Assistant Professor of AI, founder of the AI Accountability Lab with public evidence across AI research and AI business.

Founder & PI @aial.ie. Assistant Professor of AI, School of Computer Science & Statistics, @tcddublin.bsky.social AI accountability, AI audits & evaluation, critical d…

722 peer trust 11 signals / 30d active 8h ago

Jeremy Howard

Founding CEO of Answer.AI and fast.ai

@howard.fm

Why they matter Founding CEO of Answer.AI and fast.ai with public evidence across AI business and AI research.

https://Answer.AI & https://fast.ai founding CEO; previous: hon professor @ UQ; leader of masks4all; founding CEO Enlitic; founding president Kaggle; various other stuff…

710 peer trust 0 signals / 30d active 239d ago

Ted Underwood

Machine learning and literary history

@tedunderwood.com

Why they matter Machine learning and literary history with public evidence across AI research.

Uses machine learning to study literary imagination, and vice-versa. Likely to share news about AI & computational social science / Sozialwissenschaft / 社会科学 Informati…

648 peer trust 31 signals / 30d active 2h ago

Thomas Dietterich

Safe and robust AI/ML, former AAAI president

@tdietterich.bsky.social

Why they matter Safe and robust AI/ML, former AAAI president with public evidence across AI research.

Safe and robust AI/ML, computational sustainability. Former President AAAI and IMLS. Distinguished Professor Emeritus, Oregon State University. https://web.engr.oregon…

Latest measured signal AI + TCS Working Group simons.berkeley.edu · 15h ago
641 peer trust 3 signals / 30d active 3h ago

Anna Rogers

Associate professor of NLP, IT University of Copenhagen

@annarogers.bsky.social

Why they matter Associate professor of NLP, IT University of Copenhagen with public evidence across Models & releases and AI research.

Associate professor at IT University of Copenhagen: NLP, language models, interpretability, AI & society. Co-editor-in-chief of ACL Rolling Review. #NLProc #NLP

637 peer trust 0 signals / 30d active 10d ago

danah boyd

Technology and society researcher, founder of Data and Society

@zephoria.bsky.social

Why they matter Technology and society researcher, founder of Data and Society with public evidence across AI research and AI business.

STS researcher who likes to look at things sideways. Founded Data & Society. Topics: Census | Youth | Data | Society Professor of Communication, Cornell https://made-n…

632 peer trust 0 signals / 30d active 5h ago

Deb Raji

AI accountability, audits and evaluation

@rajiinio.bsky.social

Why they matter AI accountability, audits and evaluation with public evidence across Culture, work & education and Evaluation & benchmarks.

AI accountability, audits & eval. Keen on participation & practical outcomes. CS PhDing @UCBerkeley.

Latest measured signal AI on the Ground - Data & Society datasociety.net · 13d ago
632 peer trust 6 signals / 30d active 76d ago

David Pfau

Research Scientist at Google DeepMind

@davidpfau.com

Why they matter Research Scientist at Google DeepMind with public evidence across AI research and Models & releases.

So far I have not found the science, but the numbers keep on circling me. Views my own, unfortunately.

629 peer trust 3 signals / 30d active 3d ago

Why they matter Researcher with public evidence across AI research.

I like tokens! Leading the Olmo data team at @ai2.bsky.social with @kylelo.bsky.social // all opinions sampled from my own stochastic parrot more at https://soldaini.net

625 peer trust 0 signals / 30d active 342d ago

Michael Bronstein

DeepMind Professor of AI at the University of Oxford

@mmbronstein.bsky.social

Why they matter DeepMind Professor of AI at the University of Oxford with public evidence across AI research and AI business.

DeepMind Professor of AI @Oxford Scientific Director @Aithyra Chief Scientist @ProximaBio ML Lead @ProjectCETI geometric deep learning, graph neural networks, generati…

Latest measured signal AITHYRA PhD Call 2026 phd.aithyra.at · 28d ago
620 peer trust 1 signals / 30d active 3d ago

Why they matter Researcher with public evidence across AI research and Compute & infrastructure.

Blog: https://argmin.substack.com/ Webpage: https://people.eecs.berkeley.edu/~brecht/ The Irrational Decision: How We Gave Computers the Power to Choose for Us. (Princ…

Latest measured signal 13 theses on agentic AI and regulation backofmind.substack.com · 11d ago
620 peer trust 15 signals / 30d active 3h ago

Why they matter Researcher with public evidence across Models & releases and AI research.

Interested in cognition and artificial intelligence. Researcher at Anthropic; previously DeepMind, cognitive science at Stanford. Posts are mine. lampinen.github.io

592 peer trust 4 signals / 30d active 2d ago

Jasmijn Bastings

Senior Research Scientist in NLP at Google DeepMind

@jasmijn.bastings.me

Why they matter Senior Research Scientist in NLP at Google DeepMind with public evidence across AI research and Responsible AI.

I'm a Senior Research Scientist at Google DeepMind. I work on NLP & bias, fairness, and interpretability, and I'm especially interested in the interplay of gender, lan…

576 peer trust 0 signals / 30d active 48d ago

Ethan Mollick

Professor at Wharton studying AI, work and education

@emollick.bsky.social

Why they matter Professor at Wharton studying AI, work and education with public evidence across Culture, work & education and AI research.

Professor at Wharton, studying AI and its implications for education, entrepreneurship, and work. Author of Co-Intelligence. Book: https://a.co/d/bC2kSj1 Substack: htt…

Latest measured signal HomeBody: A Humanoid That Explores, Remembers, and Acts on Its Own tml.stanford.edu · 2d ago
575 peer trust 38 signals / 30d active 2h ago

Jess Hamrick

Planning, reasoning and RL in LLMs at Reflection AI

@jhamrick.bsky.social

Why they matter Planning, reasoning and RL in LLMs at Reflection AI with public evidence across Models & releases and AI research.

Researching planning, reasoning, and RL in LLMs @ Reflection AI. Previously: Google DeepMind, UC Berkeley, MIT. I post about: AI 🤖, flowers 🌷, parenting 👶, public tran…

568 peer trust 0 signals / 30d active 16d ago

Gary Marcus

AI and cognitive science researcher and critic

@garymarcus.bsky.social

Why they matter AI and cognitive science researcher and critic with public evidence across AI business and AI research.

AI and cognitive science, Founder and CEO (Geometric Intelligence, acquired by Uber). 8 books including Guitar Zero, Rebooting AI and Taming Silicon Valley. Newsletter…

Latest measured signal Liability, regulation, and AI’s new false dichotomy garymarcus.substack.com · 1d ago
565 peer trust 20 signals / 30d active 1d ago

Michael Osborne

Professor of Machine Learning at the University of Oxford

@maosbot.bsky.social

Why they matter Professor of Machine Learning at the University of Oxford with public evidence across AI research and Agents & robotics.

Mother, wife, Australian, Professor of Machine Learning in Oxford. Long Covid, trans rights, music, reggae, AI must be good for humans, https://www.robots.ox.ac.uk/~mo…

Latest measured signal My relationship with AI is changing blog.stephenturner.us · 3d ago
559 peer trust 6 signals / 30d active 1d ago

Simon Willison

Independent AI researcher, creator of Datasette and LLM

@simonwillison.net

Why they matter Independent AI researcher, creator of Datasette and LLM with public evidence across AI research and Culture, work & education.

Independent AI researcher, creator of datasette.io and llm.datasette.io, building open source tools for data journalism, writing about a lot of stuff at https://simonw…

Latest measured signal OpenAI DevDay 2026 live blog simonwillison.net · 2h ago
552 peer trust 40 signals / 30d active 2h ago

Emma Strubell

Assistant professor at CMU LTI, machine learning and NLP

@strubell.bsky.social

Why they matter Assistant professor at CMU LTI, machine learning and NLP with public evidence across AI research and Models & releases.

assistant professor, @ltiatcmu.bsky.social. machine learning: LLMs and climate. 🏳️‍🌈🏳️‍⚧️ they/them/dad (2 dogs). pro-AI, anti-capitalist, anti-fascist. Website: strub…

541 peer trust 0 signals / 30d active 7d ago