Ranjay Krishna
@RanjayKrishna
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Assistant Professor, University of Washington Research Lead for Computer Vision @ Allen Institute for Artificial Intelligence
California, USA
Joined August 2011
RT @jmin__cho: 🥳 Gap year update: I'll be joining @allen_ai/@UW for 1 year (Sep2025-Jul2026 -> @JHUCompSci) & looking forward to working wi….
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RT @uwcse: “Technical computer science savvy and deep philosophical commitments”: @UW #UWAllen alum @andreiskiii was named the @UWArtSci De….
artsci.washington.edu
Meet the four new graduates honored as College of Arts & Sciences Dean's Medalists for 2025.
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RT @uwcse: Large foundation models trained on massive datasets have revolutionized #AI. Supported by a @GoogleResearch Ph.D. Fellowship, @U….
news.cs.washington.edu
Allen School Ph.D. student Cheng-Yu Hsieh is interested in tackling one of the biggest challenges in today’s large-scale machine learning environment — how to make artificial intelligence development...
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What if the secret to improving an LLM isn’t with better data or a better teacher?. The Delta Learning Hypothesis: learn from the **delta** in performance between two weaker LLMs to instruction-tune a stronger one.
🤔 How do we train AI models that surpass their teachers?. 🚨 In #COLM2025: ✨Delta learning ✨makes LLM post-training cheap and easy – with only weak data, we beat open 8B SOTA 🤯. The secret? Learn from the *differences* in weak data pairs!. 📜 🧵 below
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RT @scottgeng00: 🤔 How do we train AI models that surpass their teachers?. 🚨 In #COLM2025: ✨Delta learning ✨makes LLM post-training cheap a….
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RT @Michael3014018: Having trouble dealing with the excessive token number when processing a video? Check out our paper that is accepted by….
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It's time for us to fundamentally re-think video encoding. It's wild that we still scale video tokens linearly with time—even if nothing is happening in the video!. We're flipping that idea: what if video tokens scaled with "complexity" instead?. More action, more tokens. Less.
Having trouble dealing with the excessive token number when processing a video? Check out our paper that is accepted by ICCV 2025 with an average score of 5.5! We tokenize video with tokens grounded in trajectories of all objects rather than fix-sized patches. Trained with a
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RT @JieyuZhang20: Tokenization kickstarts every Transformer pipeline—shaping how models digest data. Our latest work introduces semantic, g….
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“Spatial thinking is the foundation of thought, moving in spaces essential to life." - Barbara Tversky in Mind in Motion. Spatial reasoning goes beyond just reasoning about what is around you. It's reasoning about dynamics, actions, egocentric motions, and much more. Test.
Thrilled to announce that our paper SAT has been accepted to #COLM2025! 🎉.Better yet— all the data and code are already open-sourced. Dive in, experiment, and let us know what you build!.Data:Code:
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RT @yoavartzi: @COLM_conf decisions are out, and so are we . The strength of submissions this year amazed us! Many many hard decisions 😩….
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Congrats to my incredible PhD advisor!!. Every time I write a paper or give a talk, I hear Michael's voice in my head, questioning every sentence (including this one). The academic ghost I never knew I needed 👻📚.
Thank you to everyone for your energy and enthusiasm in joining this adventure with me so far!
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RT @DJiafei: It’s incredible to have both your advisors at the same company! With @fox_dieter17849 building the Robotics team, and @RanjayK….
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RT @ManlingLi_: Can VLMs build Spatial Mental Models like humans?. Reasoning from limited views?.Reasoning from partial observations?.Reaso….
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RT @andreiskiii: [FAccT 2025 paper!] 🧵.Remember the March 2024 Gemini controversy? People were upset when it generated "diverse" but histor….
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Very excited to see this new startup finally online. Very cool demos.
Today we're excited to share a glimpse of what we're building at Generalist. As a first step towards our mission of making general-purpose robots a reality, we're pushing the frontiers of what end-to-end AI models can achieve in the real world. Here's a preview of our early
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RT @anand_bhattad: I’m thrilled to share that I will be joining Johns Hopkins University’s Department of Computer Science (@JHUCompSci, @Ho….
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RT @HannaHajishirzi: Yayyy!!! Best paper honorable mention at CVPR goes to our Molmo and Pixmo @allen_ai! This is now becoming a tend :) L….
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RT @zixianma02: I’m excited to present Synthetic Visual Genome with James tomorrow afternoon! 🥳. Stop by poster #354 if you’re interested i….
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RT @jae_sung_park96: 🔥We are excited to present our work Synthetic Visual Genome (SVG) at #CVPR25 tomorrow! .🕸️ Dense scene graph with d….
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