I profess CS-ly at @UWaterloo about NLP/IR/LLM-ish things. I science at @yupp_ai and @Primal. Previously, I monkeyed code for @Twitter and slides for @Cloudera.cs.uwaterloo.ca/~jimmylin/ Nearby data lakeJoined February 2010
1/7 Exciting news! Our new paper is out: Lighting the Way for BRIGHT: Reproducible Baselines with Anserini, Pyserini, and RankLLM
📄Paper: arxiv.org/abs/2509.02558
It’s about retrieval, RAG, and why a twist on BM25 might matter more than you think. 🧵
🚀New dataset release: WildChat-4.8M
4.8M real user-ChatGPT conversations collected from our public chatbots:
- 122K from reasoning models (o1-preview, o1-mini): represent real uses in the wild and very costly to collect
- 2.5M from GPT-4o
🔗 hf.co/datasets/allen… (1/4)
🚀New dataset release: WildChat-4.8M
4.8M real user-ChatGPT conversations collected from our public chatbots:
- 122K from reasoning models (o1-preview, o1-mini): represent real uses in the wild and very costly to collect
- 2.5M from GPT-4o
🔗 hf.co/datasets/allen… (1/4)
🚀 Introducing BrowseComp-Plus: A More Fair and Transparent Evaluation Benchmark of Deep-Research Agent.
It is a new Deep-Research evaluation benchmark built on top of BrowseComp. It features
- 📚 a fixed, carefully curated corpus of web documents
- ✅ human-verified positive…
I'm being featured on the @UWaterloo main site at uwaterloo.ca today! uwaterloo.ca/news/mathemati…
Is it possible for a professor to successfully bridge academic research and industry innovation? The answer, it turns out, is @yupp_ai
9K Followers 2K FollowingMachine learning scientist and engineer speaking πtorch & C++. Past @LTIatCMU, @awscloud. Opinions sampled from MY OWN 100T param LM.
5K Followers 1K FollowingAssociate Professor, CMU. Researcher, Google. Evaluation and design of information retrieval and recommendation systems, including their societal impacts.
78K Followers 2K Followinga combination of a mediocre scientist, a mediocre manager, a mediocre advisor & a mediocre physicist at @nyuniversity (@CILVRatNYU) & @PrescientDesign
57K Followers 568 FollowingAssistant Prof of CS @UWaterloo, Faculty @VectorInst, Canada @CIFAR_News AI Chair. Joining @NYU_Courant September 2026. Co-EiC @TmlrOrg. I lead @TheSalonML.
2K Followers 590 Followinghe/him · Senior Lecturer (Assoc. Professor) at @GlasgowCS @TerrierTeam · working at the intersection of IR&NLP · PhD from @Georgetown IRLab
11K Followers 1K FollowingI like tokens! I lead the OLMo data team at @allen_ai w/ @kylelostat. Open source is fun 🤖☕️🍕🏳️🌈 Opinions are sampled from my own stochastic parrot
50K Followers 3K FollowingAI alignment + LLMs at Anthropic. On leave from NYU. Views not employers'. No relation to @s8mb. I think you should join @givingwhatwecan.
6K Followers 782 FollowingJohn C Malone Professor at @JohnsHopkins @JHUCompSci @jhuclsp @jhumceh; Part time @techatbloomberg (tweets my own)
@mdredze.bsky.social🦋
83 Followers 248 Following📊 Data Analyst | Excel | Power BI | Python | SQL | Tableua | | Google Sheet | Looker Studio | Turning Data into Decisions | Helping Businesses Grow with Insigh
335 Followers 5K FollowingEngineer + MBA, Background in Finance, underwriting, risk management with software engineering skills and ability to analyze large volumes of data using ML, AI.
1K Followers 4K FollowingÉlu Union centriste à la mairie de Cachan .Nous avons besoin du rassemblement des démocrates, des républicains et de l'ensemble des citoyens
41 Followers 1K FollowingSoftware Engineer specializing in Java, Spring Boot, and Python with expertise in DevOps, Kubernetes, Docker, and OpenShift for cloud-native development.
150 Followers 901 FollowingI build and ship products 🚀
Turning chaos into roadmap, coffee into clarity, and feedback into features. Probably working on something right now 💻⚡
9K Followers 2K FollowingMachine learning scientist and engineer speaking πtorch & C++. Past @LTIatCMU, @awscloud. Opinions sampled from MY OWN 100T param LM.
5K Followers 1K FollowingAssociate Professor, CMU. Researcher, Google. Evaluation and design of information retrieval and recommendation systems, including their societal impacts.
78K Followers 2K Followinga combination of a mediocre scientist, a mediocre manager, a mediocre advisor & a mediocre physicist at @nyuniversity (@CILVRatNYU) & @PrescientDesign
57K Followers 568 FollowingAssistant Prof of CS @UWaterloo, Faculty @VectorInst, Canada @CIFAR_News AI Chair. Joining @NYU_Courant September 2026. Co-EiC @TmlrOrg. I lead @TheSalonML.
2K Followers 590 Followinghe/him · Senior Lecturer (Assoc. Professor) at @GlasgowCS @TerrierTeam · working at the intersection of IR&NLP · PhD from @Georgetown IRLab
11K Followers 1K FollowingI like tokens! I lead the OLMo data team at @allen_ai w/ @kylelostat. Open source is fun 🤖☕️🍕🏳️🌈 Opinions are sampled from my own stochastic parrot
50K Followers 3K FollowingAI alignment + LLMs at Anthropic. On leave from NYU. Views not employers'. No relation to @s8mb. I think you should join @givingwhatwecan.
6K Followers 782 FollowingJohn C Malone Professor at @JohnsHopkins @JHUCompSci @jhuclsp @jhumceh; Part time @techatbloomberg (tweets my own)
@mdredze.bsky.social🦋
1K Followers 796 FollowingStaff Researcher @AlibabaGroup. Previously @MBZUAI, PhD from @ml_labs_irl and @dcucomputing @dcu interested in Large Language Models (LLMs).
57K Followers 856 FollowingFiguring out AI @allen_ai, open models, RLHF, fine-tuning, etc
Contact via email.
Writes @interconnectsai
Wrote The RLHF Book
Mountain runner
4K Followers 414 FollowingOptimize cost & performance with AI platforms powered by our industry-leading SLMs: Arcee Conductor for model routing, & Arcee Orchestra for agentic workflows.
18K Followers 1K FollowingProfessor @ UCSB (@ucsantabarbara). Head of Research @SimularAI. Director @ucsbcrml. #Multimodal #AgenticAI. AI for Humanity in the long run.
50K Followers 9K FollowingI lead @Cohere_Labs. Formerly Research @Google Brain @GoogleDeepmind. ML Efficiency at scale, LLMs, ML reliability. Changing spaces where breakthroughs happen.
1K Followers 614 FollowingMember of Technical Staff in Retrieval-Augmented Generation Team @cohere, previously PhD in neural Information Retrieval @tu_wien
21K Followers 36 FollowingDuckDB is an analytical in-process SQL database management system. "DuckDB" and the DuckDB logo are registered trademarks of the DuckDB Foundation.
73K Followers 3 FollowingThe best AI, all in one place. GPT-5, Grok 4, Claude 4.1, Veo 3 and more. At https://t.co/N5CdbrNcSa, or for iOS, Android, Mac, or Windows at https://t.co/YyFq8FS0ph
3K Followers 846 FollowingAssistant Professor @UWCheritonCS, @CIFAR_News AI Chair @VectorInst, @ReviewAcl Co-CTO | PhD @TTIC_Connect | Excited about "grounding" in any form
17K Followers 2K FollowingMachine Learning at @Nvidia, 6x Kaggle Grandmaster CPMP. ENS Ulm alumni. ML PhD. Ex ILOG CPLEX, IBM. Views are my own. Blocking ad hominem attacks.
4K Followers 2K Following* SVP eng at @snowflakedb.
* AI + search at @snowflakedb.
* Co-founder @Neeva . #NeevaAI = AI search.
* Ex-VP of Eng @Google (ads,YT, Google Now)
646K Followers 35 FollowingWe're an AI safety and research company that builds reliable, interpretable, and steerable AI systems. Talk to our AI assistant @claudeai on https://t.co/FhDI3KQh0n.
108K Followers 4 FollowingCohere builds secure, scalable, and private enterprise-grade AI solutions for real-world business problems. Join us: https://t.co/Yb2xItMObl
4.4M Followers 3 FollowingOpenAI’s mission is to ensure that artificial general intelligence benefits all of humanity. We’re hiring: https://t.co/dJGr6Lg202