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Comparing AUROCs of binary classifiers across cross-validation folds: alternatives to DeLong
I have two binary classifiers and would like to check whether there is a statistically significant difference between the area under the ROC curve (AUROC). I have reason to opt for AUROC as my evaluation metric of choice. For each classifier, I have 15 runs as I do 5-fold cross-validation and use 3 random seeds for initialisation. For evaluation, I have used unseen/independent test data. This means that for both classifiers I have 15 paired AUROC values. According to this article on Nature , DeLong test is (often) used for significance testing with AUROCs. However, as this depends on the variance and covariance I suspect that I cannot use DeLong test with these 15 AUROC values. In order to use DeLong test, I should concatenate all predictions on the test data across the 15 unique versions of each classifier. Would this be correct? Would it be a good idea to use paired t-test on these 15 AUROC pairs (assuming the differences between these pairs values are normally distributed)? Are there any arguments favouring either DeLong test or paired t-test?
LLM Research Papers: The 2025 List (January to June)
A topic-organized collection of 200+ LLM research papers from 2025
Whole-Body Conditioned Egocentric Video Prediction
× Predicting Ego-centric Video from human Actions (PEVA) . Given past video frames and an action specifying a desired change in 3D pose, PEVA predicts the next video frame. Our results show that, given the first frame and a sequence of actions, our model can generate videos of atomic actions (a), simulate counterfactuals (b), and support long video generation (c). Recent years have brought significant advances in world models that learn to simulate future outcomes for planning and control. From intuitive physics to multi-step video prediction, these models have grown increasingly powerful and expressive. But few are designed for truly embodied agents. In order to create a World Model for Embodied Agents, we need a real embodied agent that acts in the real world. A real embodied agent has a physically grounded complex action space as opposed to abstract control signals. They also must act in diverse real-life scenarios and feature an egocentric view as opposed to aesthetic scenes and stationary cameras. 💡 Tip: Click on any image to view it in full resolution. Why It’s Hard Action and vision are heavily context-dependent. The same view can lead to different movements and vice versa. This is because humans act in complex, embodied, goal-directed environments. Human control is high-dimensional and structured. Full-body motion spans 48+ degrees of freedom with hierarchical, time-dependent dynamics. Egocentric view reveals intention but hides the body. First-person vision reflects…
ELLlOT project launches to advance general-purpose AI under Horizon Europe
Tübingen AI Center is proud to be a partner in ELLlOT, a Horizon Europe-funded project aiming to develop next-generation Multimodal Generalist Foundation Models.
Cassava Technologies partners with the South African Artificial Intelligence Association to boost local access to AI compute services
Johannesburg, South Africa, 30 June 2025 – Cassava Technologies, a global technology leader of African heritage, is pleased to announce that it has signed a Memorandum of Understanding (MOU) with the South African AI Association (SAAIA), an industry body focused on growing responsible AI adoption, to deliver artificial intelligence (AI) solutions and GPU-as-a-Service (GPUaas) across the […]
Google’s AI search features slash traffic to news sites, deepening sustainability crisis
"Google’s rollout of tools like AI Overviews and AI Mode—chatbots that answer users’ search queries—has begun shifting online behavior from browsing links to reading AI-generated responses, drastically reducing traffic to news sites. The resulting drop in organic traffic is forcing many media organizations to rethink their sustainability models in an ecosystem increasingly dominated by tech […] The post Google’s AI search features slash traffic to news sites, deepening sustainability crisis appeared first on LatAm Journalism Review by the Knight Center .
Google’s AI search features slash traffic to news sites, deepening sustainability crisis
"Google’s rollout of tools like AI Overviews and AI Mode—chatbots that answer users’ search queries—has begun shifting online behavior from browsing links to reading AI-generated responses, drastically reducing traffic to news sites. The resulting drop in organic traffic is forcing many media organizations to rethink their sustainability models in an ecosystem increasingly dominated by tech […] The post Google’s AI search features slash traffic to news sites, deepening sustainability crisis appeared first on LatAm Journalism Review by the Knight Center .
Hijacking Amazon EventBridge for launching Cross-Account attacks
Securing the invisible paths: How cross-account event flows can become security blind spots
ByteDance Introduces Astra: A Dual-Model Architecture for Autonomous Robot Navigation
ByteDance introduces Astra, an innovative dual-model architecture revolutionizing robot navigation in complex indoor environments. The post ByteDance Introduces Astra: A Dual-Model Architecture for Autonomous Robot Navigation first appeared on Synced .
Using AI Right Now: A Quick Guide
Which AIs to use, and how to use them
Research Update: Applications of Local Volume Measurement
Research update on on applying local volume measurement to downstream tasks
Evaluating Long-Context Question & Answer Systems
Evaluation metrics, how to build eval datasets, eval methodology, and a review of several benchmarks.
Time series patient visits for XGBoost classifier
I’m developing a tree-based model classifier (XGBoost) using some healthcare (patient visits) data. The data has a time dimension, and I want to observe if there is a longitudinal effect for the prediction of the target feature. To predict the target for the current visit (Timepoint n), it should incorporate information from the previous visit(s) (T0 to T(N-1)). The input shape is visit_time, features, and target/label. Let’s say, I have a patient with 5 visits (T1 – T5). The idea is that the first prediction (T1) will be just based on the features for this timepoint. To predict T2, I want to add information from T1. Then, for T3, it will be T1 + T2, and so on, T5 (T1+ T2 + T3 + T4). The number of timepoints (visits) vary for each patient. I read that I can add lags and rolling windows. But still couldn’t figure out the best way to do it. Any thoughts on what and how to do it for my scenario?
Understanding and Coding the KV Cache in LLMs from Scratch
KV caches are one of the most critical techniques for efficient inference in LLMs in production.
MIT Researchers Unveil “SEAL”: A New Step Towards Self-Improving AI
MIT introduces SEAL, a framework enabling large language models to self-edit and update their weights via reinforcement learning. The post MIT Researchers Unveil “SEAL”: A New Step Towards Self-Improving AI first appeared on Synced .
Researchers from PSU and Duke introduce “Multi-Agent Systems Automated Failure Attribution
"Automated failure attribution" is a crucial component in the development lifecycle of Multi-Agent systems. It has the potential to transform the challenge of identifying "what went wrong and who is to blame" from a perplexing mystery into a quantifiable and analyzable problem The post Researchers from PSU and Duke introduce “Multi-Agent Systems Automated Failure Attribution first appeared on Synced .
Studying inductive biases of random networks via local volumes
In this post, we will study inductive biases of the parameter-function map of random neural networks using star domain volume estimates. This builds on the ideas introduced in Estimating the Probability of Sampling a Trained Neural Network at Random and Neural Redshift: Random Networks are not Random Functions (henceforth NRS). Inductive biases To understand generalization in deep neural networks, we must understand inductive biases. Given a fixed architecture, some tasks will be easily learnable, while others can take an exponentially long time to learn (see here and here).
How GitHub engineers tackle platform problems
Our best practices for quickly identifying, resolving, and preventing issues at scale. The post How GitHub engineers tackle platform problems appeared first on The GitHub Blog .
DEEP and Tübingen AI Launch Sciencepreneurship Program
With the conclusion of its inaugural round, the DEEP X Tübingen AI cooperation has established a successful sciencepreneurship initiative in artificial intelligence.
The Common Pile v0.1
Announcing the Common Pile v0.1: An 8TB Dataset of Public Domain and Openly Licensed Text
Are repeated measures models applicable when only the exposure is repeatedly measured and the outcome only once?
In many resources, I see that repeated measures analyses—such as mixed-effects models or GEE—are commonly applied when the outcome is measured multiple times within the same individuals. However, I was wondering: Can these models also be used when it’s the exposure that is repeatedly measured (e.g. at several time points), and the outcome is measured only once (e.g. at a later time point)? For example, suppose I measure maternal blood pressure at 3 time points during pregnancy (repeated exposure), and I want to study its association with birthweight (a single outcome). Can I use a mixed-effects model or GEE to account for within-subject correlation in the exposures? I’m curious which modeling approaches are most appropriate in this context, and if there are any recommended papers or examples. So for example in R Studio: model
AGI Is Not Multimodal
"In projecting language back as the model for thought, we lose sight of the tacit embodied understanding that undergirds our intelligence." –Terry Winograd The recent successes of generative AI models have convinced some that AGI is imminent. While these models appear to capture the essence of human
Reliable and Efficient Amortized Model-Based Evaluation
TLDR: We enhance the reliability and efficiency of language model evaluation by introducing IRT-based adaptive testing, which has been integrated into the HELM framework.
AI Engineer 2025 - Improving RecSys & Search with LLM techniques
Recsys & search are converging with LLMs via semantic IDs, data augmentation, and unified foundation models.
Artificial Power: 2025 Landscape Report
Our latest annual report maps the current state of play with the AI market, interrogates the industry’s key sources of power, and provides an actionable strategy to reclaim public agency over the future of AI. The post Artificial Power: 2025 Landscape Report appeared first on AI Now Institute .
Letter to the Community: Prof. AZA Allsop
This month’s letter is presented by Professor AZA Allsop: artist, neuroscientist, and psychiatrist who conducts research at the intersection of social cognition, music mindfulness, and psychedelics. AZA’s intersectional research is motivated by the desire to decode methods for treating mental suffering and enhancing the evolution of society at large. I am honored to have this […] The post Letter to the Community: Prof. AZA Allsop appeared first on Deep Learning Indaba .
Product Key Memory Sparse Coders
Using Product Key Memories to encode sparse coder features
AI Singapore and the UNDP collaborate to close the AI literacy divide & transform communities in developing countries
AI Singapore (AISG) and the United Nations Development Programme (UNDP) today signed a new Memorandum of Understanding (MOU) to expand access to AI learning in six pilot countries from...
Revamping Data Science Interviews
Interviews are not just about improving hiring outcomes - they are about strengthening the entire DS function
Adobe Research Unlocking Long-Term Memory in Video World Models with State-Space Models
By combining State-Space Models (SSMs) for efficient long-range dependency modeling with dense local attention for coherence, and using training strategies like diffusion forcing and frame local attention, researchers from Adobe Research successfully overcome the long-standing challenge of long-term memory in video generation. The post Adobe Research Unlocking Long-Term Memory in Video World Models with State-Space Models first appeared on Synced .
AI Literacy Programs in Europe – Supporting Article 4 of the EU AI Act
As organisations across Europe navigate the implementation of the EU AI Act — including Article 4, which addresses the importance of AI literacy — there is growing interest in accessible and practical training resources. This document presents a non-exhaustive selection of AI literacy programs that may be useful for companies, institutions, and professionals seeking to better understand […]
Exceptional Leadership: Some Qualities, Behaviors, and Styles
What makes a good leader? What do good leaders do? And commando, soldier, and police leadership.
AAAI Launches AI-Powered Peer Review Assessment System
AAAI today announced a pilot program that strategically incorporates Large Language Models (LLMs) to enhance the academic paper review process for the AAAI-26 conference. The post AAAI Launches AI-Powered Peer Review Assessment System appeared first on AAAI .
DeepSeek-V3 New Paper is coming! Unveiling the Secrets of Low-Cost Large Model Training through Hardware-Aware Co-design
A newly released 14-page technical paper from the team behind DeepSeek-V3, with DeepSeek CEO Wenfeng Liang as a co-author, sheds light on the “Scaling Challenges and Reflections on Hardware for AI Architectures.” The post DeepSeek-V3 New Paper is coming! Unveiling the Secrets of Low-Cost Large Model Training through Hardware-Aware Co-design first appeared on Synced .
Coding LLMs from the Ground Up: A Complete Course
Why build LLMs from scratch? It's probably the best and most efficient way to learn how LLMs really work. Plus, many readers have told me they had a lot of fun doing it.
Dubai joins South Africa AI Association initiative to launch global AI trade & investment hub
The hub will serve as a catalyst for collaboration and platform for startups in high-potential, emerging markets. Dubai – Dubai Future Foundation (DFF), through the Dubai Centre for Artificial Intelligence (DCAI), has partnered with the South African Artificial Intelligence Association (SAAIA) to help launch a dedicated AI trade & investment hub with the aim of fast-tracking […]
Qwen3 benchmark results
Benchmark results for Qwen3 models using the Aider polyglot coding benchmark.
Gemini 2.5 Pro Preview 03-25 benchmark cost
The $6.32 benchmark cost reported for Gemini 2.5 Pro Preview 03-25 was incorrect.
Building News Agents for Daily News Recaps with MCP, Q, and tmux
Learning to automate simple agentic workflows with Amazon Q CLI, Anthropic MCP, and tmux.
On the Biology of a Large Language Model (Part 2)
An in-depth look at Anthropic's Transformer Circuit Blog Post Part 1 here: https://youtu.be/mU3g2YPKlsA Discord here: https;//ykilcher.com/discord https://transformer-circuits.pub/2025/attribution-graphs/biology.html Abstract: We investigate the internal mechanisms used by Claude 3.5 Haiku — Anthropic's lightweight production model — in a variety of contexts, using our circuit tracing methodology. Authors: Jack Lindsey†, Wes Gurnee*, Emmanuel Ameisen*, Brian Chen*, Adam Pearce*, Nicholas L. Turner*, Craig Citro*, David Abrahams, Shan Carter, Basil Hosmer, Jonathan Marcus, Michael Sklar, Adly Templeton, Trenton Bricken, Callum McDougall◊, Hoagy Cunningham, Thomas Henighan, Adam Jermyn, Andy Jones, Andrew Persic, Zhenyi Qi, T. Ben Thompson, Sam Zimmerman, Kelley Rivoire, Thomas Conerly, Chris Olah, Joshua Batson*‡ Links: Homepage: https://ykilcher.com Merch: https://ykilcher.com/merch YouTube: https://www.youtube.com/c/yannickilcher Twitter: https://twitter.com/ykilcher Discord: https://ykilcher.com/discord LinkedIn: https://www.linkedin.com/in/ykilcher If you want to support me, the best thing to do is to share out the content :) If you want to support me financially (completely optional and voluntary, but a lot of people have asked for this): SubscribeStar: https://www.subscribestar.com/yannickilcher Patreon: https://www.patreon.com/yannickilcher Bitcoin (BTC): bc1q49lsw3q325tr58ygf8sudx2dqfguclvngvy2cq Ethereum (ETH): 0x7ad3513E3B8f66799f507Aa7874b1B0eBC7F85e2 Litecoin (LTC…
AI Regulatory Sandbox Approaches: EU Member State Overview
AI regulatory sandboxes are an important part of the implementation of the EU AI Act. According to Article 57 of the AI Act, each Member State must establish at least one AI regulatory sandbox at the national level by 2 August 2026. This post provides an overview of how different EU Member States are approaching […]
AGI is not a milestone
There is no capability threshold that will lead to sudden impacts
Why We Think
Special thanks to John Schulman for a lot of super valuable feedback and direct edits on this post. Test time compute ( Graves et al. 2016 , Ling, et al. 2017 , Cobbe et al. 2021 ) and Chain-of-thought (CoT) ( Wei et al. 2022 , Nye et al. 2021 ), have led to significant improvements in model performance, while raising many research questions. This post aims to review recent developments in how to effectively use test-time compute (i.e. “thinking time”) and why it helps.
DeepSeek Unveils DeepSeek-Prover-V2: Advancing Neural Theorem Proving with Recursive Proof Search and a New Benchmark
DeepSeek AI releases DeepSeek-Prover-V2, an open-source LLM for Lean 4 theorem proving. It uses recursive proof search with DeepSeek-V3 for training data and reinforcement learning, achieving top results on MiniF2F. The post DeepSeek Unveils DeepSeek-Prover-V2: Advancing Neural Theorem Proving with Recursive Proof Search and a New Benchmark first appeared on Synced .