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David Barber Profile
David Barber

@davidobarber

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Director UCL Centre for AI and UiPath Distinguished Scientist. Co-founder https://t.co/Wx3VpUByR2. Pro: cycling, walking, EU. @[email protected]. Views my own.

London, England
Joined March 2017
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@VectifyAI
PageIndex
11 days
@unwind_ai_ Thanks for the shoutout! Vectorless, vision-based RAG — without OCR. 🧩 Powered by PageIndex's agentic in-context index & reasoning-native, human-like retrieval. 🚀Agent Platform: https://t.co/ZCoTGa2Pkz 📦GitHub: https://t.co/Q4KBfnLI4b 🛠️Notebook:
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github.com
📑 PageIndex: Document Index for Reasoning-based RAG - VectifyAI/PageIndex
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@VectifyAI
PageIndex
2 months
📄 Want to upload local long PDFs on Claude but get context limit reached errors? 🚀 In Claude Desktop, you can use PageIndex to upload your local files directly — no more context limits. 👉 Easy setup at https://t.co/pp1tzNnBnM. 🆓 1,000 pages free. #PageIndex #RAG #Claude
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@VectifyAI
PageIndex
3 months
Meet the first long-context OCR — PageIndex OCR. It can convert PDFs to Markdown with the document structure preserved. 📄 Upload a PDF ⚡ Get Markdown output (global structure preserved) 🌳 Navigate the hierarchical structure of the document 🆓 Try it now with 200 pages free:
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@davidobarber
David Barber
6 months
Please do consider submitting to the ICML Workshop on Computer Use Agents. Deadline May 18.
@workshopcua
ComputerUseAgents Workshop
8 months
🚀Announcing the Workshop on Computer Use Agents at #ICML2025 in July, Vancouver! Join us, to advance research on AI agents performing real-world computer tasks. 🤖Call for Papers & Demos: Deadline May 18, 2025 🎙️Exciting speaker lineup announced! ✍️Interested in
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@VectifyAI
PageIndex
8 months
Tired of the poor accuracy of similarity-based retrieval on long documents? You need reasoning-based RAG. We've open-sourced PageIndex — a tool for building indexes optimized for reasoning-based RAG and deep research. https://t.co/Q4KBfnLI4b
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github.com
📑 PageIndex: Document Index for Reasoning-based RAG - VectifyAI/PageIndex
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@ai_ucl
UCL Centre for Artificial Intelligence
9 months
Talk by Nicolas Chopin, Prof of Statistics, Paris, hosted by AI Centre/ ELLIS https://t.co/jpqKXP1oHR Date: Monday 17th March 2025 Time: 12:30 - lunch; 1-2 - talk Location: UCL AI Centre, 90 High Holborn For more info and sign up: https://t.co/gBW60JS7AG
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@davidobarber
David Barber
9 months
For the UK Gen AI community, we are inviting submissions for Gen AI research posters to be displayed during our launch event on 4 March at the Crick Institute in London. Please complete this form if you would like to be considered for the exhibition: https://t.co/diKuta1kZ1
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@davidobarber
David Barber
10 months
Important article in the FT about the need for the UK to rethink university and PhD funding. PhD students are the lifeblood of research, teaching and innovation.
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ft.com
Universities are the cornerstone of the country’s reputation as a global research hub but the business model is in crisis
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@edawerd
Edward Kim
1 year
Anyone can ship AI features quickly, but getting them from OK to great really comes down to the quality of your evaluations. At @GustoHQ, we built our AI workflows around Humanloop, which has been core to shortening our eval cycle time. Congrats on launching, @humanloop!
@humanloop
Humanloop
1 year
Humanloop is now generally available! After 2 years of working closely with early customers, we're opening access to our full evals platform. 🧵 Here's what we've learned and how we can help you build great AI products:
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@MingtianZhang
Mingtian
1 year
🚀Mafin2 is based on our new MCTS RAG framework, achieving state-of-the-art accuracy for financial data!
@VectifyAI
PageIndex
1 year
Introducing Mafin2, your next-gen AI financial copilot from Vectify AI. Learn more on our website: https://t.co/p8aH4NcVIx. #AI #Fintech #FinancialAssistant #Mafin2
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@davidobarber
David Barber
1 year
This is a very nice piece of work, showing how to use the optimal form of the denoising covariance to improve generations.
@JzinOu
Zijing Ou
1 year
🚀 We propose a new way to estimate the denoising covariance in diffusion models, which can lead to lower estimation error, better FID and likelihood tradeoff with fewer steps, and improved generation diversity. ArXiv link: https://t.co/EmPf8RzbWq. More details below👇
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@davidobarber
David Barber
1 year
The UCL Venturer Programme is a new way to fund PhD studentships and Postdocs and create a startup. If you're an investor or corporate looking to access world leading AI talent for innovation, please do join us at the UCL AI Centre on 14th November
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eventbrite.co.uk
Hear about UCL’s involvement in the AI story, our spinout success, and the benefits to your business of investing in our new programme
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@davidobarber
David Barber
1 year
@radicalvcfund @maxjaderberg @IsomorphicLabs Additionally, @radicalvcfund has launched applications for the first-ever Radical Cloud Cohort, offering selected early-stage AI builders $250K in cloud credits and a year of programming to help scale their businesses. Apply:
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@davidobarber
David Barber
1 year
Excited to join @radicalvcfund as a Scientific Advisor. I’ll be starting with the Radical AI Founders Masterclass on Oct 30, in a conversation with @maxjaderberg of @IsomorphicLabs. Register here:
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radical.vc
Radical AI Founders Masterclass is designed by researchers for researchers. Learn founder fundamentals and what is required to build an AI startup.
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@davidobarber
David Barber
1 year
With funding and mentoring from Google DeepMind @ai_ucl is looking for a Fellow to contribute impactful research in the broad area of sustainable AI. The Fellow will be a proven advocate for increasing participation in AI and an ambassador for inclusion during the Fellowship.
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@davidobarber
David Barber
1 year
We show how to take a pretrained model (like Gemma) and extend the context significantly with only linear scaling cost. As good as Mamba and other SOTA models for language modelling but with global context. Great work by @ai_ucl @UiPath https://t.co/9ixjIa3koR
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@MingtianZhang
Mingtian
1 year
I will be in ICML 2024 presenting two conference papers and one workshop paper about diffusion methods, LLM fine-tuning and next-generation network architecture. #ICML2024 #ICML [1/5]
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@davidobarber
David Barber
1 year
Wonderful anecdote from Turing Award winner Manuel Blum who was told by his teachers that he would be lucky even to finish school. Still going strong at 86. Great to chat with @mmbronstein and make new friends. Thanks #WAIC2024 and unidt for hosting.
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@MingtianZhang
Mingtian
2 years
Llama3 shows the importance of dataset quality and size during fine-tuning. How to achieve effective fine-tuning while minimizing labeling costs? Check out our paper on active preference learning for LLM, now accepted by #ICML2024 🎉. Stay tuned for the camera-ready version.
@MingtianZhang
Mingtian
2 years
Check out our latest work on exploring data-efficient LLM fine-tuning/alignment with active learning: https://t.co/TbeFvnNqXp.
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