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Countershading coloration in blue shark skin emerges from hierarchically organized and spatially tuned photonic architectures inside skin denticles

The blue shark (Prionace glauca) exhibits a striking dorsoventral color gradient, transitioning from vibrant blue dorsally to silver and white ventrally, a pattern widely interpreted as pelagic counte...

👤 Viktoriia Kamska|Emeline Raguin|Bodo D. ... 📰 arXiv 📅 2026 👁 303 📚 18

Federated SPARQL querying for genomic variant functional annotation

Sensitive health data should preferentially be analysed on site. In typical bioinformatics workows, public databases are duplicated and used by specialised tools to enrich the local datasets. In the c...

👤 Alexandrina Bodrug-Schepers | Romain Bou... 📰 arXiv 📅 2026 👁 145 📚 18

FedRG: Unleashing the Representation Geometry for Federated Learning with Noisy Clients

Federated learning (FL) suffers from performance degradation due to the inevitable presence of noisy annotations in distributed scenarios. Existing approaches have advanced in distinguishing noisy sam...

👤 Tian Wen|Zhiqin Yang|Yonggang Zhang|Xuef... 📰 arXiv 📅 2026 👁 121 📚 18

Global Optimality for Constrained Exploration via Penalty Regularization

Efficient exploration is a central problem in reinforcement learning and is often formalized as maximizing the entropy of the state-action occupancy measure. While unconstrained maximum-entropy explor...

👤 Florian Wolf | Ilyas Fatkhullin | Niao H... 📰 arXiv 📅 2026 👁 117 📚 18

FaceMoE: Mixture of Experts for Low-Resolution Face Recognition

Low-resolution face recognition (LR-FR) remains a challenging task due to poor feature extraction and aggregation, as probe images often contain limited identity information resulting from extreme deg...

👤 Kartik Narayan | Vishal M. Patel 📰 arXiv 📅 2026 👁 84 📚 18

The Sampling Complexity of Condorcet Winner Identification in Dueling Bandits

We study best-arm identification in stochastic dueling bandits under the sole assumption that a Condorcet winner exists, i.e., an arm that wins each noisy pairwise comparison with probability at least...

👤 El Mehdi Saad|Victor Thuot|Nicolas Verze... 📰 arXiv 📅 2026 👁 237 📚 17

BoomHQ: Learning to Boost Multiple Hybrid Queries on Vector DBMSs

Hybrid queries, which combine vector nearest neighbor searches with scalar predicates, represent a fundamental challenge in managing vector databases. Existing methods often restrict the number of vec...

👤 Ermu Qiu | Tianyi Chen | Jun Gao | Xing ... 📰 arXiv 📅 2026 👁 155 📚 17

Context-Aware RL for Agentic and Multimodal LLMs

Large language models (LLMs) often fail when answering requires identifying a small but decisive piece of evidence within a long or complex context, such as a single line in a tool trace or a subtle d...

👤 Peiyang Xu | Bangzheng Li | Sijia Liu | ... 📰 arXiv 📅 2026 👁 123 📚 17

Open-Vocabulary and Referring Segmentation for 3D Gaussians Using 2D Detectors

3D Gaussian Splatting (3DGS) has emerged at the forefront of 3D scene reconstruction. Extending 3DGS with language-driven, open-vocabulary understanding has gained significant attention for real-world...

👤 Jameel Hassan | Yasiru Ranasinghe | Vish... 📰 arXiv 📅 2026 👁 78 📚 17

KLIP: localized distribution shift detection via KL-divergence with diffusion priors in Inverse Problems

Diffusion models have shown promising performance as data-driven priors for computational imaging, as well as some capacity to detect out-of-distribution (OOD) images. However, existing approaches to ...

👤 Alireza Kheirandish | Jihoon Hong | Sara... 📰 arXiv 📅 2026 👁 186 📚 16

Efficient Bayes Factor Sensitivity Analysis via Posterior Density Ratios

Bayes factor sensitivity analysis examines how the evidence for one hypothesis over another depends on the prior distribution. In complex models, the standard approach refits the model at each hyper-p...

👤 František Bartoš | Eric-Jan Wagenmakers ... 📰 arXiv 📅 2026 👁 150 📚 16

Persistent and anti-persistent stride-to-stride fluctuations: an ARFIMA decomposition consistent with closed-loop sensorimotor control

Stride-to-stride fluctuations in human walking carry a fractal correlation structure that reverses sign under external cueing: self-paced gait is persistent, whereas metronomic or visually cued gait i...

👤 Philippe Terrier 📰 arXiv 📅 2026 👁 96 📚 16

OpenVLThinkerV2: A Generalist Multimodal Reasoning Model for Multi-domain Visual Tasks

Group Relative Policy Optimization (GRPO) has emerged as the de facto Reinforcement Learning (RL) objective driving recent advancements in Multimodal Large Language Models. However, extending this suc...

👤 Wenbo Hu | Xin Chen | Yan Gao-Tian | Yih... 📰 arXiv 📅 2026 👁 82 📚 16

Multi-output Extreme Spatial Model for Complex Aircraft Production Systems

Problem definition: Data-driven models in machine learning have enabled efficient management of production systems. However, a majority of machine learning models are devoted to modeling the mean resp...

👤 Cheolhei Lee | Xing Wang | Xiaowei Yue |... 📰 arXiv 📅 2026 👁 56 📚 16

Keep The Essentials: Efficient Reference Conditioned Generation via Token Dropping

Reference-based diffusion models enable highly controllable image generation by leveraging elements from input images to guide prompt-driven synthesis. However, these models are computationally expens...

👤 Rishubh Parihar | Ayush Raina | R. Venka... 📰 arXiv 📅 2026 👁 203 📚 15

WorldDirector: Building Controllable World Simulators with Persistent Dynamic Memory

We present WorldDirector, a highly controllable video world model framework designed for persistent dynamic object memory and unrestricted viewpoint exploration. Unlike existing world models that enta...

👤 Hanlin Wang | Hao Ouyang | Qiuyu Wang | ... 📰 arXiv 📅 2026 👁 85 📚 15

Non-unique time and market incompleteness

Financial markets are often modelled as if time were unique and continuous across assets and markets. Financial markets are however asynchronous, order flow is event-driven, and waiting times between ...

👤 Chris Angstmann | Tim Gebbie 📰 arXiv 📅 2026 👁 69 📚 15

Joint Diagnostics of Circumsolar Sky Brightness Using Coronagraphic Measurements and Aerosol Optical Inversions at Mauna Loa

Atmospheric aerosols strongly influence daytime sky quality for solar coronal imaging, yet few studies directly link aerosol properties and sky-brightness measurements within ~2° of the Sun. Here we c...

👤 Thomas A. Schad|Paul Bryans|Andre Fehlma... 📰 arXiv 📅 2026 👁 396 📚 14

Leveraging higher-order time integration methods for improved computational efficiency in a rainshaft model

Cloud and precipitation microphysics packages in atmospheric general circulation models typically use first-order time integration methods with a large time step, requiring ad hoc limiters and substep...

👤 Justin Dong|Sean P. Santos|Steven B. Rob... 📰 arXiv 📅 2026 👁 389 📚 14

Amortized Optimal Transport from Sliced Potentials

We propose a novel amortized optimization method for predicting optimal transport (OT) plans across multiple pairs of measures by leveraging Kantorovich potentials derived from sliced OT. We introduce...

👤 Minh-Phuc Truong | Khai Nguyen 📰 arXiv 📅 2026 👁 96 📚 14
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