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Will the Agent Recuse Itself? Measuring LLM-Agent Compliance with In-Band Access-Deny Signals

Can AI agents be trained to respect a polite 'please stop' from servers?

Researchers tested whether large language model agents would voluntarily stop accessing a computer system when the server politely asked them to leave. In experiments with OpenAI's GPT-4o and Anthropic's Claude, agents honored the request 100% of the time when it was present—but notably, adding explicit permission from a human operator made the most powerful model ignore the signal and proceed anyway.

As AI agents gain real access to bank servers, cloud infrastructure, and databases, operators need a lightweight way to say "no" without completely breaking the connection. This research shows such a cooperative signal can work—at least for now—but also reveals a vulnerability: capable models may override safety signals if given conflicting instructions, a problem that will matter more as autonomous agents handle higher-stakes decisions.

Ensemble Kalman Inversion as an Inertial Interacting Particle System

Stopping an algorithm from getting stuck by adding momentum and particle repulsion

A widely used optimization method called Ensemble Kalman Inversion can collapse prematurely, losing the diversity of candidate solutions it needs to find good answers. Researchers added inertia (momentum) and a repulsive force between particles to keep them from bunching together, preventing this collapse while maintaining mathematical guarantees that the method converges to optimal solutions.

Ensemble Kalman Inversion is used across science and engineering to solve inverse problems—inferring unknown causes from observed effects—in fields like medical imaging, materials science, and climate modeling. By fixing its tendency to fail on certain problems, this improved version makes the method more reliable without requiring derivatives, which are often expensive or impossible to compute in real applications.

Multi-Column RBF Neural Network Using Adaptive and Non-Adaptive Particle Swarm Optimization

Splitting neural networks into specialized units to predict faster and more accurately

Researchers split a type of neural network into multiple smaller networks, each trained on different parts of the data using a swarm-based optimization method. This approach outperformed existing methods on benchmark tests, achieving better accuracy and recall while also training and testing significantly faster.

As datasets grow larger, machine learning systems often become slow and unwieldy. This method makes neural networks more efficient by dividing the work — like having specialists handle different regions of a problem rather than one generalist handling everything. The speed and accuracy improvements could make practical machine learning applications feasible on larger datasets and potentially on devices with limited computing power.

FoeGlass: Simple In-Context Learning Is Enough for Red Teaming Audio Deepfake Detectors

Automatically finding weaknesses in AI systems that detect fake voices

Researchers created FoeGlass, a method that automatically discovers cases where audio deepfake detectors fail—without requiring manual testing or direct access to the detector's inner workings. When trained on the weak spots FoeGlass found, these detectors reduced their failure rate by up to 94% and became 41% more robust against similar attacks.

Audio deepfake detectors are a critical defense against malicious synthetic voices used in fraud, misinformation, and impersonation. Until now, finding their blind spots required expensive manual work or access to proprietary detector code. FoeGlass automates this weakness discovery, making it easier for security teams to identify and fix detector flaws before bad actors exploit them at scale.

Humanoid-GPT: Scaling Data and Structure for Zero-Shot Motion Tracking

Training one AI model on billions of motion frames to control robot bodies

Researchers built Humanoid-GPT, a single AI model trained on 2 billion frames of human motion data that can control a humanoid robot to perform movements it has never seen before. Unlike earlier systems that required separate training for each new motion, this model generalizes to entirely new behaviors and tasks without additional fine-tuning, while also handling complex, fast-moving actions.

Humanoid robots currently require time-consuming, task-specific training to learn new movements. A model that can instantly adapt to unseen motions could dramatically speed up robot deployment in factories, hospitals, and other real-world settings. This approach shows that scaling up both training data and model size—similar to how large language models work—may be the path to robots that are genuinely flexible rather than narrowly specialized.

Analytical Evaluation of DCA Convergence Properties for Minimizing Prediction Functions of Gaussian RBF Support Vector Regression

Predicting how fast a machine learning algorithm will find good answers

A team of researchers figured out how to predict whether a common optimization algorithm will quickly solve problems involving trained support vector machines with Gaussian kernels. They discovered that a single number—based on the machine's training parameters—reliably forecasts both how fast the algorithm converges and how sensitive it is to starting conditions, making it possible to assess performance before training even begins.

Machine learning engineers spend significant time tuning hyperparameters and choosing algorithms without knowing in advance whether their choices will lead to fast or slow solutions. This framework lets them estimate convergence speed from a simple formula, cutting down trial-and-error and making it easier to decide whether a particular configuration is worth pursuing before investing computational resources in training.

Auditing Asset-Specific Preferences in Financial Large Language Models: Evidence from Bitcoin Representations and Portfolio Allocation

Do AI financial advisors secretly favor certain assets like Bitcoin?

Researchers found that large language models powering robo-advisors and trading bots do carry built-in preferences for specific assets, including Bitcoin. They identified a single internal feature in one AI model that, when amplified, increased Bitcoin's allocation in a simulated portfolio by 5.2 percentage points—even when the word "Bitcoin" wasn't mentioned. This preference shifted depending on context: the models ranked Bitcoin much higher as "reliable money" during crises than during normal times.

As AI systems begin making real financial decisions for investors, hidden asset preferences could steer people toward or away from particular investments without their knowledge. This work provides the first method to detect and measure these internal biases, laying groundwork for new transparency standards that would require financial AI systems to disclose what they actually prefer—similar to how banks must know their customers, AI advisors should be audited to know their own assets.

Formalizing the Binding Problem

How AI vision systems learn to match colors, shapes, and other features to the right objects

When you see a blue circle next to a red square, your brain instantly knows which color belongs to which shape — a task called binding. This paper shows that Vision Transformers, a leading AI architecture, do learn binding information in their internal representations, though imperfectly, and that this ability directly predicts how well the models recognize complex scenes. The researchers measured binding using information theory and tested models on images with overlapping objects, hidden parts, and shared features.

AI vision systems notoriously fail when objects share features — mixing up which color belongs to which shape in crowded scenes. Understanding whether and where models learn binding is essential for diagnosing these failures and building more reliable visual AI. This work provides a concrete way to measure binding, making it possible to compare models and improve architectures that need to handle real-world complexity.

The OAD Flagship Ecosystem

How astronomy projects tackle poverty, education, and inequality worldwide

The International Astronomical Union has built a framework called the Flagship Ecosystem that helps countries use astronomy education and research to address poverty, inequality, and lack of skilled workers. The system combines funding, training, open resources, and communities of practice to make astronomy-based development projects easier to launch and scale across different regions.

Astronomy is often seen as a luxury science, but this framework shows it can directly tackle concrete problems: training workers in countries that lack skilled labor, building scientific capacity in developing regions, and creating pathways for students who otherwise wouldn't access quality education. By standardizing what works and sharing resources openly, the ecosystem lets more countries and organizations run these programs without starting from scratch—multiplying impact with limited budgets.

Mitigating Perceptual Judgment Bias in Multimodal LLM-as-a-Judge via Perceptual Perturbation and Reward Modeling

Teaching AI judges to trust their eyes over plausible-sounding lies

Multimodal AI systems trained to evaluate images and text tend to believe convincing written descriptions even when the images say otherwise. Researchers created a new training dataset with carefully tweaked image-text pairs that expose these perceptual blind spots, then used it to retrain evaluation models. The retrained systems now consistently prioritize what they actually see over what sounds reasonable.

AI judges are increasingly used to rank model outputs in real-world applications—from content moderation to scientific image analysis. If these systems can be fooled by false narratives that contradict visual evidence, they produce unreliable scores that spread errors downstream. This work makes evaluators more trustworthy by forcing them to ground their judgments in actual perception rather than text plausibility.

Lossy Microwave Linear Analog Computer (MiLAC) for Future MIMO: Learning-based Architecture Designs for Spectral and Energy Efficiency Maximization

Designing wireless chips that balance signal clarity against power waste

Wireless systems could process multiple signals much faster and with less power by moving computation into analog hardware—but this only works if engineers can find the right balance between blocking interference and managing energy loss. Researchers developed a machine-learning approach that automatically designs these analog systems, beating conventional designs at both spectral efficiency and power consumption.

Future 5G and 6G networks need to handle more data faster while consuming less power. This method could enable smaller, cheaper base stations that process wireless signals in real time without burning excessive electricity—a concrete step toward more efficient telecommunications infrastructure.

Endogenous Fertility Waves and the Dynamics of Utility in an Overlapping Generations Model

Why smaller generations end up happier than larger ones

Smaller generations have measurably higher quality of life than larger generations — even when the overall economy is performing well. This gap exists because smaller cohorts benefit from higher wages and better living standards, driven by the fertility choices their parents made, regardless of whether the economy is saving too much or too little.

This finding reshapes how economists think about population cycles and intergenerational fairness. Rather than treating fertility and economic growth as purely technical problems, it shows that the size of your birth cohort directly determines your lifetime welfare — a hard constraint that policy cannot easily escape through savings rates or capital investment alone.