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Ai2
3,698 posts
Ai2
@allen_ai
Breakthrough AI to solve the world's biggest problems.
› Join us: allenai.org/careers
› Newsletter: tinyurl.com/3vc2r2m8
- Ai2 reposted
𝗔𝗖𝗘𝟮𝗦-𝗦𝗛𝗶𝗘𝗟𝗗+, our new climate emulator that learns to separate the effects of sea surface temperature & CO2, is now on @huggingface—check it out →
- Ai2 reposted
I'm hiring Senior Research Engineers. Come build open-source vision-language models from zero to hero: pretraining, mid-training, post-training, RL, the whole pipeline. 
Replying to @allen_aiTrained on the new & existing data, ACE2S-SHiELD+ accurately handles the scenarios earlier ACE models were good at as well as the ones they struggled with. It's more flexible than ACE2-SHiELD + ACE2-SOM combined, using ~25% fewer training samples than either alone.
- Replying to @allen_aiEarlier ACE models produced unrealistic results on two scenarios climate scientists often use to probe model behavior: AMIP +4 K, which raises sea surface temperature by 4 degrees with CO2 unchanged, and abrupt 4xCO2, which quadruples CO2 against a still-cold ocean.
- Replying to @allen_aiSea surface temperature & CO2 have major impacts on climate, and they typically change together—SST tends to rise as CO2 increases. Because earlier ACE models had only seen them move in sync, they couldn't accurately predict what happens when one changes and the other doesn't.
- Replying to @allen_aiWe've been developing the ACE family for several years. ACE2-SHiELD was trained on historical simulations from a physics-based model. ACE2-SOM came next, coupling ACE2 to a slab ocean—a simplified ocean representation where ocean temperature responds to CO2.
- Ai2 reposted
Our last guest of the day: @peterjansen_ai of @allen_ai has been measuring LLM science capabilities for year. Now he's building science agents to push the frontier. It might get pretty crowded in those data centers full of geniuses...Live today: 9:30a PT: @hoomanradfar of @CollectiveFin on AI for solopreneurs 10am: @TarasPohrebniak of @ElomiaHealth on AI for mental health, from Ukraine's front lines to US prisons 10:30a: @peterjansen_ai of @allen_ai on the AI scientist frontier x.com/i/broadcasts/1… - Ai2 reposted
📌 TMRW: AI Workflows for Food Systems Research: A Demonstration of AutoDiscovery with the Ai2 Asta Team. 📆 June 4, 9:30 – 10:30 am EDT 💬 Ruben Lozano Aguilera & Bodhisattwa Majumder (@allen_ai); Leroy Mwanzia (@Cipotato); @EliotJonesGarc1 (IFPRI). 🎫 ifpri.zoom.us/webinar/regist…
