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Sophie Greenwood

@sjgreenwood.bsky.social
699 followers 508 following 113 posts

PhD Student @ Cornell CIS Bluesky paper digest: bsky.app/profile/paper-feed.bsky.so…

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Sophie Greenwood @sjgreenwood.bsky.social · 07/10/2026
👀 so cool midterms.graze.social
midterms.graze.social
Election Night 2026
Vetted coverage of the 2026 midterms, by state.
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Graze 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.social
Election Night 2026
Vetted coverage of the 2026 midterms, by state.
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Kenny Peng @kennypeng.bsky.social · 06/10/2026
Our 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. 🧵
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Giovanni 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 🧵
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Sophie Greenwood @sjgreenwood.bsky.social · 30/09/2026
RELATEDLY: 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.
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Isabel Silva Corpus @isabelcorpus.bsky.social · 30/09/2026
In 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.com
Introducing AI to an online petition platform changed outputs but not outcomes - Nature Human Behaviour
Corpus 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.
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Sophie Greenwood @sjgreenwood.bsky.social · 30/09/2026
If 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
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Sophie Greenwood @sjgreenwood.bsky.social · 29/09/2026
If you're searching for PhD opportunities, check out this feed I created using @graze.social! ➡️ bsky.app/profile/sjgr...
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Maria Antoniak @mariaa.bsky.social · 29/09/2026
I'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.com
CLS Lab — Culture, Language, & Systems | University of Colorado Boulder
The 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.
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Tony Zhou @tyzhou.bsky.social · 14/09/2026
Bluesky 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/2609.12958
arxiv.org
Middleware for Feed Recommendation in Practice: How Feed Creators Build, Maintain, and Sustain Custom Feeds on Bluesky
Scholars 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...
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J. Nathan Matias @natematias.bsky.social · 04/09/2026
The 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.xyz
Head of Design
Product, 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...
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Sophie Greenwood @sjgreenwood.bsky.social · 26/08/2026
big news for academics 🎉
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Sophie Greenwood @sjgreenwood.bsky.social · 19/08/2026
fitting: - legendre only has 1 surviving portrait - it is the number 1 most iconic portrait on wikipedia (imo) en.wikipedia.org/wiki/Adrien-...
en.wikipedia.org
Adrien-Marie Legendre - Wikipedia
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Erica Chiang @ericachiang.bsky.social · 19/08/2026
Thanks 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.co
https://news.cornell.edu/stories/2026/08/research-helps-nyc-students-aim-higher-public-high-school-applications
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Kenny Peng @kennypeng.bsky.social · 18/08/2026
New 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...
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Eugene Vinitsky 🍒 @eugenevinitsky.bsky.social · 12/08/2026
For 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.ac
leaflet.pub
Lea: research-oriented social media
Introducing a beta-version of our new research-focused social media platform
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Benjamin Laufer @laufer.bsky.social · 04/08/2026
I am delighted to share that I'll be joining the University of Washington Information School as an Assistant Professor!
University of Washington campus
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Sophie Greenwood @sjgreenwood.bsky.social · 29/07/2026
@kennypeng.bsky.social ultimate traversle.io x skytrails.org mashup
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Isabel Silva Corpus @isabelcorpus.bsky.social · 29/07/2026
It 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
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Nikhil Garg @nkgarg.bsky.social · 28/07/2026
At my first #IC2S2 this week -- would be great to meet and chat with folks here!
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Maria Antoniak @mariaa.bsky.social · 28/07/2026
Here'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!
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Brokoslaw Laschowski @drlaschowski.bsky.social · 27/07/2026
Come 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.ca
Associate Professor/Professor - Artificial Intelligence
Associate Professor/Professor - Artificial Intelligence
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Sophie Greenwood @sjgreenwood.bsky.social · 28/07/2026
I'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!
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Martin Saveski @msaveski.bsky.social · 27/07/2026
Looking 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...
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mr. TIM @timkellogg.me · 24/07/2026
fwiw distillation was also illegal back in 1926 too, so i guess history repeats
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Joshua Tucker @jatucker.bsky.social · 23/07/2026
We 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
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Sophie Greenwood @sjgreenwood.bsky.social · 22/07/2026
Wow 跟我一样
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Mark Tomlinson @marktomlinson.dev · 20/07/2026
People 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."
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em @foremphasis.bsky.social · 20/07/2026
Principle component analysis
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Diana Cai @dianarycai.bsky.social · 15/07/2026
I’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!
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Eugene Vinitsky 🍒 @eugenevinitsky.bsky.social · 09/07/2026
I will literally follow any and all ML PhD students on this website, where you at
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sardean @sardean.bsky.social · 07/07/2026
tomorrow (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/2605.26385
arxiv.org
Credit-assigned Policy Gradient for Early Stage Retrieval in Two-stage Ranking
Large-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...
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Ira Globus-Harris @iraglobusharris.bsky.social · 03/07/2026
Are 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!
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Nikhil Garg @nkgarg.bsky.social · 03/07/2026
1/7 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.com
EconCSLib
EconCSLib is a Lean 4 library and workflow for formalizing Economics and Computation research papers with language-model assistance.
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norvid_studies @norvid-studies.bsky.social · 01/07/2026
why have all platforms standardized on a binary like/not like signal with very rare "dislike" or "superlike"
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Sophie Greenwood @sjgreenwood.bsky.social · 01/07/2026
what 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)
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Kenny Peng @kennypeng.bsky.social · 30/06/2026
Presenting 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)
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Romina Mahinpei @rmahinpei.bsky.social · 16/06/2026
Are 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...
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danivilardell.bsky.social @danivilardell.bsky.social · 03/06/2026
1/ 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.
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danivilardell.bsky.social @danivilardell.bsky.social · 03/06/2026
Our 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 Juels
arxiv.org
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Adam Wiggins @adamwiggins.com · 02/06/2026
I 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.com
A Bluesky feed for one · Adam Wiggins
I 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.
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Alex Teytelboym @t8el.bsky.social · 28/05/2026
The 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.org
EC 2026 Accepted Papers - EC 2026
1. Congested Waiting Lists and Organ Allocation Authors: Itai Ashlagi (Stanford University), Ravi Jagadeesan (Stanford University), Pengyu Qian (Boston University) 2. Automated Social Science: Languag...
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Sophie Greenwood @sjgreenwood.bsky.social · 21/05/2026
spotted an ad for @devingaffney.com on the nyc subway
A subway ad for an AI coding agent with the text "you could be shipping more with Devon"
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Nikhil Garg @nkgarg.bsky.social · 18/05/2026
Giving 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.us
Who Decides? Law, Values, and Algorithms in an Automated World
From courtrooms to code, how much should we trust algorithms? Explore why judges using LLMs may be misguided, how values are socially constructed, and how …
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Nikhil Garg @nkgarg.bsky.social · 11/05/2026
We 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.social
sites.google.com
Home
About 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 ...
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Sophie Greenwood @sjgreenwood.bsky.social · 06/05/2026
I got from SATURDAY to DIRTY in 4 steps in today's Traversle puzzle! Play here: traversle.io
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Sophie Greenwood @sjgreenwood.bsky.social · 27/04/2026
Tougher today-- I got from SPEAKER to ZERO in 9 steps in today's Traversle puzzle! Play here: traversle.io
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Sophie Greenwood @sjgreenwood.bsky.social · 24/04/2026
I got from GOAT to POLAR in 6 steps in today's Traversle puzzle! Play here: traversle.io
traversle.io
Traversle | Find the path between words
Start from one word, choose a connected neighbor each turn, and try to reach the target before you run out of steps.
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Cornell Tech @cornelltech.bsky.social · 22/04/2026
Making 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
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Sophie Greenwood @sjgreenwood.bsky.social · 17/04/2026
Check 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!
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