Hussein Hazimeh @hazimeh_h
Data research @OpenAI. @MIT phd hazimeh.com San Francisco, CA Joined October 2015-
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Today OpenAI announced o3, its next-gen reasoning model. We've worked with OpenAI to test it on ARC-AGI, and we believe it represents a significant breakthrough in getting AI to adapt to novel tasks. It scores 75.7% on the semi-private eval in low-compute mode (for $20 per task…
o3 and o3-mini are my favorite models ever. o3 essentially solves AIME (>90%), GPQA (~90%), ARC-AGI (~90%), and it gets 1/4th of the Frontier Maths. To understand how insane 25% on Frontier Maths is, see this quote by Tim Gowers. The sparks are intensifying ...
Scaling Laws for Downstream Task Performance of Large Language Models Studies how the choice of the pretraining data and its size affect downstream cross-entropy and BLEU score arxiv.org/abs/2402.04177
Very excited to share the paper from my last @GoogleAI internship: Scaling Laws for Downstream Task Performance of LLMs. arxiv.org/pdf/2402.04177… w/ Natalia Ponomareva, @hazimeh_h, Dimitris Paparas, Sergei Vassilvitskii, and @sanmikoyejo 1/6
'LibMTL: A Python Library for Deep Multi-Task Learning', by Baijiong Lin, Yu Zhang. jmlr.org/papers/v24/22-… #mtl #python #libmtl
'L0Learn: A Scalable Package for Sparse Learning using L0 Regularization', by Hussein Hazimeh, Rahul Mazumder, Tim Nonet. jmlr.org/papers/v24/22-… #sparse #regularization #l0learn
A new preprint on ALL-SUM: an ensembled L0Learn method for faster, more accurate polygenetic risk scores(PRSs) using GWAS summary stats. It ensembles L0+L2 regulated PRSs across toning grids. Applied to many UKB phenotypes. Congrats to @Tony_Chen6, @AndrewHaoyu, Rahul Mazumder
A new preprint on ALL-SUM: an ensembled L0Learn method for faster, more accurate polygenetic risk scores(PRSs) using GWAS summary stats. It ensembles L0+L2 regulated PRSs across toning grids. Applied to many UKB phenotypes. Congrats to @Tony_Chen6, @AndrewHaoyu, Rahul Mazumder
Very excited share our preprint on a new method for constructing polygenic risk scores from GWAS summary statistics. Big thanks to my amazing advisors @AndrewHaoyu, Rahul Mazumder (MIT), and @XihongLin for their support on this project. biorxiv.org/content/10.110…
Check out our work on Flexible Modeling and Multitask Learning using Differentiable Tree Ensembles in KDD'22 Paper: dl.acm.org/doi/10.1145/35… Our paper had won Best Student Paper Award in KDD'22 (Research Track).
Great article covering six papers on Mixture of Experts, of which one is ours 🙂 (DSelect-K with @hazimeh_h, @achowdhery, and others): arxiv.org/abs/2106.03760
Great article covering six papers on Mixture of Experts, of which one is ours 🙂 (DSelect-K with @hazimeh_h, @achowdhery, and others): arxiv.org/abs/2106.03760
my article about MoE routing layers is out! I took it down to 6 routing papers:
my article about MoE routing layers is out! I took it down to 6 routing papers: https://t.co/214gtPqjSH
Really excited to share the beta release of #SynthID, a watermarking tool created by @GoogleDeepMind and made available via @googlecloud to help tag and identify AI-generated images
(1/2) I used ML to make Chess more fun in Single-Player. If you: - are an ML practitioner / work in AI, - like chess, math or puzzle games, - enjoy stories abt code, hacks, and setbacks, then this tech story is for you. A deep dive into the ML side of puzzle design.
Check out our work on pruning neural nets! The method leverages several ideas from combinatorial optimization and high-dimensional statistics to enable faster and more accurate pruning Blog: goo.gle/3E12kAc ICML paper: proceedings.mlr.press/v202/benbaki23…
Check out our work on pruning neural nets! The method leverages several ideas from combinatorial optimization and high-dimensional statistics to enable faster and more accurate pruning Blog: goo.gle/3E12kAc ICML paper: proceedings.mlr.press/v202/benbaki23…
New Article: "How to DP-fy ML: A Practical Guide to Machine Learning with Differential Privacy" by Ponomareva, Hazimeh, Kurakin, Xu, Denison, McMahan, Vassilvitskii, Chien, and Thakurta jair.org/index.php/jair…
Today, we discuss the current state of differentially private ML (DP-ML) research with an overview of common techniques for obtaining DP-ML models, engineering challenges, mitigation techniques and current open questions. Learn more ↓ goo.gle/3Iril5k
How easy is it for adversaries to hide image content from classifiers through obfuscations? Our new benchmark allows you to evaluate this! Dataset and evaluation code: github.com/deepmind/image… Paper: arxiv.org/abs/2301.12993. Joint work between @DeepMind, @Google & @GoogleAI 🧵
Training ML models with differential privacy could be challenging. To aid practitioners, we wrote a detailed survey with known best practices of DP-training of ML models: arxiv.org/abs/2303.00654
Mark your calendars! The 2022 MIP Workshop feat. DANniversary, will be held May 23-26, 2022, at DIMACS, Rutgers University. This year MIP will also host a computational competition, to be launched on November 16th. More info at mixedinteger.org/2022/

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lemma23 @lemma23
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Changhong Wang @Tsingmoon
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Kate Lin @k8_lin_
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Ali Hariri @haririAli95
86 Followers 201 Following PhD Candidate at @EPFL. Interested in graph representation learning and long-range modeling
Shirley @KarlursmkZjOb
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Hussein Moussa @husseinmoussa_
128 Followers 320 Following Research Fellow @UChicago | Applied Math, Econ, and Arabic Lit. @aub_lebanon ’23
Phorffoughn @PhorffoughnIoS
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SherryCarroll @Sp65bcm47w6X41
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JodieMarner @t95kVnTiHBcHp0
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Britney @Britney10282172
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JoyGosse @VRutV91ha21tS6
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Rida Abbas @Rida_Abbas_
17 Followers 51 Following 🇱🇧🇮🇹| 21 anni || Studente di Ingegneria Informatica presso il Politecnico di Milano
Elias Khalil @lyeskhalil
2K Followers 2K Following Assistant Professor @UofT & @uoftmie. Formerly postdoc @DS4DM in Montreal and grad student @gtcomputing & @GTCSE. Machine Learning+Discrete Optimization.
Ryan Cory-Wright @RyanCoryWright
791 Followers 497 Following Assistant Professor @ImperialBiz | Prev: Postdoc @IBMResearch PhD @ORCenter @MIT | Optimization+Machine Learning+Renewable Energy | Runner | Kiwi 🇳🇿
Adam Elmachtoub @Adam235711
3K Followers 3K Following Associate Professor of Industrial Engineering and Operations Research @Columbia @CUSEAS @DataSciColumbia / @AmazonScience Visiting Academic
Beste Basciftci @BesteBasciftci
1K Followers 694 Following Assist. Prof. @TippieAnalytics, PhD in operations research @GeorgiaTech, computer & industrial engineer
Jalal Kazempour @JalalKazempour
1K Followers 335 Following Professor at DTU, Denmark. Interested in energy markets and operations research
Sebastien Bubeck @SebastienBubeck
56K Followers 1K Following I work on AI at OpenAI. Former VP AI and Distinguished Scientist at Microsoft.
Mathieu Besançon @matbesancon
2K Followers 2K Following Researcher in math. optimization @inria_grenoble. Applied maths, programming, OSS, energy, higher ed, games. Also on the elephant and blue sky platforms
Jannis Kurtz @JannisK13
469 Followers 271 Following assistant professor @uva_amsterdam | research in integer (robust) optimization and machine learning | scientific views are my own, all others I read somewhere
INFORMS @INFORMS
13K Followers 2K Following INFORMS is the association for those who apply science, math, technology, and analytics to solve the world’s most critical challenges.
Bistra Dilkina @BDilkina
2K Followers 601 Following Associate Professor of CS @USCViterbi. co-Director of USC Center on AI and Society @CAIS_USC. #AI #DiscreteOptimization #ML #MLforOPT #compsust #AIforGood
Jerry Tworek @MillionInt
22K Followers 677 Following Berry farmer @ OpenAI | o3, o1, GPT4, ChatGPT, Codex, Solved Rubik’s cube with robotic hand | cautious AI optimist
Rita Fonseca @fonsecarita1
1K Followers 1K Following Talent Acquisition @OpenAI. (Formerly @GoogleMaps) Econ @UCLA
OpenAI Developers @OpenAIDevs
222K Followers 1 Following Updates for developers building with the OpenAI Platform and API • Service status: https://t.co/kZwnwdYqOS • Support: https://t.co/qCi6M5ESZU
Mark Chen @markchen90
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Kate Lin @k8_lin_
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OpenAI @OpenAI
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Carlos Riquelme @rikelhood
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Xuekai Zhu @zhu_xuekai
203 Followers 544 Following Ph. D. Candidate @sjtu1896 | ACL 2023 Area Chair Award |Language models
Faria Huq | 🦋: far... @FariaHuqOaishi
830 Followers 659 Following PhD Student @SCSatCMU | Agents 🤖 & Interaction📱| Editor at https://t.co/dRePeCbYqe | Prev- @GoogleDeepMind, SGI Fellow'21 @MIT_CSAIL, Tero labsIgor Carron @IgorCarron
5K Followers 6K Following CEO https://t.co/b9fz6WvhTx @LightOnIO Paris Machine Learning Meetup (8200+) @ParisMLGroup https://t.co/jY1eeMkqJE (10M+ pageviews) @NuitBlog Rocket Scientist
Omar Khattab @lateinteraction
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Paul von Chamier, PhD @Paul_VonChamier
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Shital Shah @sytelus
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Elizabeth Adkison @eaadkison
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Elias Frantar @elias_frantar
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Andreas Terzis @aterzis
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Mahesh Chandra Mukkam... @mmahesh873
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Andrew Carr 🤸 @andrew_n_carr
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Javid Dadashkarimi @JDadashkarimi
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