Sophie Greenwood @sjgreenwood.bsky.social · 07/10/2026👀 so cool midterms.graze.socialmidterms.graze.socialElection Night 2026Vetted coverage of the 2026 midterms, by state. 030
Reposted by Sophie GreenwoodGraze Social @graze.social · 07/10/2026🗳 midterms.graze.social is @graze.social's most ambitious project to date. And as of today, it's live. Let's take a look at what the next 27 days will look like 🧵midterms.graze.socialElection Night 2026Vetted coverage of the 2026 midterms, by state. 513751
Reposted by Sophie GreenwoodKenny Peng @kennypeng.bsky.social · 06/10/2026Our new paper introduces a scientific theory of atomic features. We mathematically derive testable predictions. Our experiments challenge conventional wisdom. SAEs of different size and training data share many features. Large SAEs recover both parent and child features. 🧵 1207
Reposted by Sophie GreenwoodGiovanni Monea @giomonea.bsky.social · 06/10/2026⚠️ Stop pretraining your looped Transformer with a separate KV cache per recursion! In our recent preprint, we show that *memory sharing* not only saves memory but is also a net-positive inductive bias! Less memory, same flops, higher quality. 🔗 arxiv.org/abs/2610.02383 🧵 17012
Sophie Greenwood @sjgreenwood.bsky.social · 30/09/2026RELATEDLY: there are a ton of free research tools that you can access with the same Bluesky / ATmosphere account! If you use Bluesky regularly and haven't checked out Lea and Semble (and of course, Paper Skygest), I'd highly recommend these in particular to start. 0193
Reposted by Sophie GreenwoodIsabel Silva Corpus @isabelcorpus.bsky.social · 30/09/2026In 2023, Change.org integrated an AI-assisted writing tool into their platform. We found that access to the tool changed platform trends in petition text, but that outcomes (signatures and comments) did not improve... Excited that this paper is out, check it out! 🔗: www.nature.com/articles/s41...nature.comIntroducing AI to an online petition platform changed outputs but not outcomes - Nature Human BehaviourCorpus et al. examine how the introduction of an AI writing tool impacted Change.org petitions, finding that it increased petition homogeneity but did not improve petition outcomes. 22311
Sophie Greenwood @sjgreenwood.bsky.social · 30/09/2026If you're a researcher using Bluesky (/ Lea / the broader ATmosphere), this might be interesting to you! 👀 TL;DR: open infrastructure for researchers, starting with personal websites + account hosting 1183
Sophie Greenwood @sjgreenwood.bsky.social · 29/09/2026If you're searching for PhD opportunities, check out this feed I created using @graze.social! ➡️ bsky.app/profile/sjgr... 12612
Reposted by Sophie GreenwoodMaria Antoniak @mariaa.bsky.social · 29/09/2026I'm recruiting 1-2 PhD students to join our lab in Fall 2027, through either Computer Science or Information Science at the University of Colorado Boulder! Looking for people with interests in NLP plus [healthcare | literary studies | narratives | social media | etc.]. Join us! 🏔️☀️cls-lab.comCLS Lab — Culture, Language, & Systems | University of Colorado BoulderThe Culture, Language, & Systems Lab at CU Boulder studies the language systems that transmit and shape modern culture, from internet platforms to literary archives to language models. 07152
Reposted by Sophie GreenwoodTony Zhou @tyzhou.bsky.social · 14/09/2026Bluesky gives users the power to choose their algorithms, but how does this actually work in practice? In our new preprint, we explore the ecosystem of Bluesky custom feeds and the feed creators behind them! 🧵 arxiv.org/abs/2609.12958arxiv.orgMiddleware for Feed Recommendation in Practice: How Feed Creators Build, Maintain, and Sustain Custom Feeds on BlueskyScholars have long proposed third-party middleware as an alternative to centralized algorithmic feeds: feeds built and distributed by independent feed creators. This vision saw no large-scale instanti... 513546
Reposted by Sophie GreenwoodJ. Nathan Matias @natematias.bsky.social · 04/09/2026The most exciting job I've seen in a while- Blacksky is hiring a NYC-based/hybrid head of design. via @rude1.blacksky.team blackskyweb.xyz/about/jobs/h...blackskyweb.xyzHead of DesignProduct, brand, and visual identity About Blacksky Algorithms Blacksky Algorithms is building an interconnected suite of products reshaping how people connect, participate, organize, and transact onli... 02212
Sophie Greenwood @sjgreenwood.bsky.social · 19/08/2026fitting: - legendre only has 1 surviving portrait - it is the number 1 most iconic portrait on wikipedia (imo) en.wikipedia.org/wiki/Adrien-...en.wikipedia.orgAdrien-Marie Legendre - Wikipedia 1262
Reposted by Sophie GreenwoodErica Chiang @ericachiang.bsky.social · 19/08/2026Thanks to Grace Stanley for covering our work :) Our paper on personalized recommendations for students applying to NYC high schools (best student paper at EC ’26(!!)) is coming soon! Here's a quick preview... (1/5) news.cornell.edu/stories/2026...t.cohttps://news.cornell.edu/stories/2026/08/research-helps-nyc-students-aim-higher-public-high-school-applications 1114
Reposted by Sophie GreenwoodKenny Peng @kennypeng.bsky.social · 18/08/2026New York City 8th graders choose from 900+ high schools to apply to, in a process that’s spawned Facebook groups and dozens of expensive consulting services. Our new paper shows how application behavior leads to disparities, and how to effectively intervene. 🧵 www.nature.com/articles/s44... 1329
Reposted by Sophie GreenwoodEugene Vinitsky 🍒 @eugenevinitsky.bsky.social · 12/08/2026For the past six months @mariaa.bsky.social and I have been working on creating an improved research experience on atproto. It's now live! Check out: lea.acleaflet.pubLea: research-oriented social mediaIntroducing a beta-version of our new research-focused social media platform 20381113
Reposted by Sophie GreenwoodBenjamin Laufer @laufer.bsky.social · 04/08/2026I am delighted to share that I'll be joining the University of Washington Information School as an Assistant Professor! 2442
Sophie Greenwood @sjgreenwood.bsky.social · 29/07/2026@kennypeng.bsky.social ultimate traversle.io x skytrails.org mashup 171
Reposted by Sophie GreenwoodIsabel Silva Corpus @isabelcorpus.bsky.social · 29/07/2026It was great to have the chance to share about this work led by @mariannealq.bsky.social on AI overviews in local news environments… keep an eye out for more on this soon! #ic2s2 0141
Reposted by Sophie GreenwoodNikhil Garg @nkgarg.bsky.social · 28/07/2026At my first #IC2S2 this week -- would be great to meet and chat with folks here! 1162
Reposted by Sophie GreenwoodMaria Antoniak @mariaa.bsky.social · 28/07/2026Here's a feed for IC2S2! It's a reverse chronological feed that matches all string mentions of "IC2S2", the hashtags #IC2S2 and #IC2S22026, plus all mentions of and posts by @ic2s2.bsky.social. 📌 Pin the feed to follow along with the conference this week! 0254
Reposted by Sophie GreenwoodBrokoslaw Laschowski @drlaschowski.bsky.social · 27/07/2026Come join us in Toronto. UofT is hiring an Associate Professor/Professor and endowed Hinton Chair in Artificial Intelligence. @utoronto.ca @uoftcompsci.bsky.social jobs.utoronto.ca/job/Toronto-...jobs.utoronto.caAssociate Professor/Professor - Artificial IntelligenceAssociate Professor/Professor - Artificial Intelligence 0137
Sophie Greenwood @sjgreenwood.bsky.social · 28/07/2026I'm at @ic2s2.bsky.social this week! I'm looking forward to presenting Paper Skygest on Thursday afternoon (Social Media Platforms and Online Communities) If you're around, I'd love to chat about social media research on Bluesky / beyond! 0162
Reposted by Sophie GreenwoodMartin Saveski @msaveski.bsky.social · 27/07/2026Looking forward to giving a tutorial on 𝗦𝗼𝗰𝗶𝗮𝗹 𝗠𝗲𝗱𝗶𝗮 𝗙𝗲𝗲𝗱 𝗥𝗮𝗻𝗸𝗶𝗻𝗴 𝗔𝗹𝗴𝗼𝗿𝗶𝘁𝗵𝗺𝘀 with @tiziano.bsky.social at @ic2s2.bsky.social! 🕜 𝗧𝗶𝗺𝗲: Tuesday, 1-4 pm 📍 𝗟𝗼𝗰𝗮𝘁𝗶𝗼𝗻: Mansfield (210). 🌐 𝗪𝗲𝗯𝘀𝗶𝘁𝗲: social-media-ais.github.io/ic2s2-26-tut... 1307
Reposted by Sophie Greenwoodmr. TIM @timkellogg.me · 24/07/2026fwiw distillation was also illegal back in 1926 too, so i guess history repeats 31389
Reposted by Sophie GreenwoodJoshua Tucker @jatucker.bsky.social · 23/07/2026We have re-opened our search for a 3-year AI-research postdoc at NYU's Center for Social Media, AI, and Politics!! The position starts this **September 1st** (or as soon as possible thereafter) and is in person at NYU. If necessary, we will also consider a 1/1/27 start. 1/3 32934
Reposted by Sophie GreenwoodMark Tomlinson @marktomlinson.dev · 20/07/2026People never learn. Unless they're on LinkedIn, then they learn all the time and the lessons are everywhere. People never change. Unless they're on LinkedIn, then everything does so "completely." 2352
Reposted by Sophie Greenwoodem @foremphasis.bsky.social · 20/07/2026Principle component analysis 112710
Reposted by Sophie GreenwoodDiana Cai @dianarycai.bsky.social · 15/07/2026I’m joining Cornell as an Assistant Professor in Computer Science this fall! My group will work on probabilistic machine learning for scientific discovery. I’m recruiting PhD students to start in Fall 2027 -- and stay tuned for postdoc opportunities! 5707
Reposted by Sophie GreenwoodEugene Vinitsky 🍒 @eugenevinitsky.bsky.social · 09/07/2026I will literally follow any and all ML PhD students on this website, where you at 39325
Reposted by Sophie Greenwoodsardean @sardean.bsky.social · 07/07/2026tomorrow (today over in Korea) Haruka will be presenting this paper in the ICML. working on this project with her (and folks at Meta) is part of what convinced me to revamp my undergraduate RL course (more on that later). check out the poster at the Wednesday poster session! arxiv.org/abs/2605.26385arxiv.orgCredit-assigned Policy Gradient for Early Stage Retrieval in Two-stage RankingLarge-scale search, recommendation, and retrieval-augmented generation (RAG) systems typically employ a two-stage architecture: an early-stage ranker (ESR) generates a candidate set, which is subseque... 1113
Reposted by Sophie GreenwoodIra Globus-Harris @iraglobusharris.bsky.social · 03/07/2026Are you at ICML next week? Feel like your decision-making for which sessions to attend might not be risk minimizing? Don't incur (swap) regret and come to my, @aaroth.bsky.social, and @ncollina.bsky.social's tutorial Monday on multicalibration, decision-making, and collaborative learning! 22011
Reposted by Sophie GreenwoodNikhil Garg @nkgarg.bsky.social · 03/07/20261/7 Excited to share EconCSLib: a Lean library/workflow. Our vision is to enable researchers who don't know Lean to formalize their Applied Modeling papers. Why? I, and most theorists, are terrified of fatal mistakes in our papers Paper: arxiv.org/abs/2606.13306 Project: gargnikhil.com/EconCSLib/gargnikhil.comEconCSLibEconCSLib is a Lean 4 library and workflow for formalizing Economics and Computation research papers with language-model assistance. 1283
Reposted by Sophie Greenwoodnorvid_studies @norvid-studies.bsky.social · 01/07/2026why have all platforms standardized on a binary like/not like signal with very rare "dislike" or "superlike" 7272
Sophie Greenwood @sjgreenwood.bsky.social · 01/07/2026what if... top chicken prediction market as a content recommendation engine: incentivized community curation of engaging content? (interesting dynamics here: even assuming good faith behavior, predictions change the rankings, which changes exposure/engagement, etc) 2151
Reposted by Sophie GreenwoodKenny Peng @kennypeng.bsky.social · 30/06/2026Presenting this at #COLT2026! Let me know if you want to chat about (1) the linear representation hypothesis, (2) theoretical foundations for interpretability / science of AI. - Talk: Thursday 2:33 pm - Deep Learning Theory / Optimization - Poster: Thursday Lunch) 081
Reposted by Sophie GreenwoodRomina Mahinpei @rmahinpei.bsky.social · 16/06/2026Are you a Bluesky user or developer? Princeton's HCI group is conducting an IRB-approved interview study on perspectives about generative AI (genAI) in decentralized social media. Participation includes: • 45–60 min Zoom interview • $30 USD digital gift card Signup: forms.gle/EDmcLnjbamtb... 03319
Reposted by Sophie Greenwooddanivilardell.bsky.social @danivilardell.bsky.social · 03/06/20261/ Privacy-preserving credentials can prove you're over 18, but not much else. Our new research changes that. 𝜋Creds introduces verifiable credentials generated by trusted LLM inference over authenticated. 252
Reposted by Sophie Greenwooddanivilardell.bsky.social @danivilardell.bsky.social · 03/06/2026Our paper with formal analysis and code: arxiv.org/pdf/2606.03771 H/T to my co-authors Sam Breckenridge, Derek Leung, Andrés Fábrega, James Austgen, Farinaz Koushanfar, and Prof. Ari Juelsarxiv.org 021
Reposted by Sophie GreenwoodAdam Wiggins @adamwiggins.com · 02/06/2026I wrote a custom Bluesky feed! It's a classifier trained my past likes. As a bonus, I got to learn more about recommender systems ("RecSys"). adamwiggins.com/posts/a-blu...adamwiggins.comA Bluesky feed for one · Adam WigginsI built a custom feed for Bluesky that trains a model on my past interactions. Here's what I learned about RecSys and social media feeds generally. 7699
Reposted by Sophie GreenwoodAlex Teytelboym @t8el.bsky.social · 28/05/2026The list of 290 papers we accepted for EC'26 is now up: ec26.sigecom.org/program/acce... We are really grateful to the whole programme committee for their hard work and to the authors for submitting many terrific papers. See you all in Rome in July 🍕🇮🇹🍝☀️🤖ec26.sigecom.orgEC 2026 Accepted Papers - EC 20261. Congested Waiting Lists and Organ Allocation Authors: Itai Ashlagi (Stanford University), Ravi Jagadeesan (Stanford University), Pengyu Qian (Boston University) 2. Automated Social Science: Languag... 0104
Sophie Greenwood @sjgreenwood.bsky.social · 21/05/2026spotted an ad for @devingaffney.com on the nyc subway 2202
Reposted by Sophie GreenwoodNikhil Garg @nkgarg.bsky.social · 18/05/2026Giving a "pub talk" tomorrow evening thanks to @pintofscience.us. (And folks talking all week, e.g. see @informor.bsky.social on Wednesday). www.pintofscience.us/event/who-de...pintofscience.usWho Decides? Law, Values, and Algorithms in an Automated WorldFrom courtrooms to code, how much should we trust algorithms? Explore why judges using LLMs may be misguided, how values are socially constructed, and how … 0122
Reposted by Sophie GreenwoodNikhil Garg @nkgarg.bsky.social · 11/05/2026We are very excited to announce our first workshop on From Theory to Practice: behind the scenes on research deployments at EC’26 (July 6 in Rome)! Call for posters and submissions now open! Organized by myself, @ericachiang.bsky.social , Bailey Flanigan, @brwilder.bsky.socialsites.google.comHomeAbout This workshop will focus on the practical realities of deploying algorithmic and economic systems from academic research, especially with government and non-profit partners. While economics and ... 0216
Sophie Greenwood @sjgreenwood.bsky.social · 06/05/2026I got from SATURDAY to DIRTY in 4 steps in today's Traversle puzzle! Play here: traversle.io 050
Sophie Greenwood @sjgreenwood.bsky.social · 27/04/2026Tougher today-- I got from SPEAKER to ZERO in 9 steps in today's Traversle puzzle! Play here: traversle.io 140
Sophie Greenwood @sjgreenwood.bsky.social · 24/04/2026I got from GOAT to POLAR in 6 steps in today's Traversle puzzle! Play here: traversle.iotraversle.ioTraversle | Find the path between wordsStart from one word, choose a connected neighbor each turn, and try to reach the target before you run out of steps. 040
Reposted by Sophie GreenwoodCornell Tech @cornelltech.bsky.social · 22/04/2026Making big tech algorithms “fair” is harder than it looks. New research finds that improving fairness is not as simple as applying technical solutions – it requires considering fairness at every stage of the engineering workflow. Learn more: bit.ly/4tne0Fz @cornellbowers.bsky.social 093
Sophie Greenwood @sjgreenwood.bsky.social · 17/04/2026Check out this new blog + thread from @kennypeng.bsky.social (especially if you like thinking about social media and/or enjoyed skytrails.org)! The idea: replace linear feeds with navigable trails of content, using LLMs to realize the original vision of the Web. Let us know your thoughts! 0153