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Showing 3940 results for "k.a. walsh"
Mathematics Preprint PDF DOI

Improved bounds for the Fourier uniformity conjecture

Cedric Pilatte · 2026

Let $\lambda$ denote the Liouville function. We prove that $$\sum_{X \leq x < 2X} \sup_{\alpha \in \mathbb{R}/\mathbb{Z}} \bigg\lvert\!\sum_{x \leq n < x+H} \lambda(n) e(n\alpha)\bigg\rvert = o(HX)$$ …

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Physics Preprint PDF DOI

Quantum-Accelerated Gowers $U_2$ Norm for Bent Boolean Functions

Rajdeep Dwivedi, C. A Jothishwaran, Sugata Gangopadhyay, Vishvendra Singh Poonia · 2026

Bent Boolean functions extremal objects that maximally resist affine approximation are notoriously hard to construct for large numbers of variables. We propose a hybrid quantum-classical genetic a…

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AI & Data Science Preprint PDF DOI

PolyKV: A Shared Asymmetrically-Compressed KV Cache Pool for Multi-Agent LLM Inference

Ishan Patel, Ishan Joshi · 2026

We present PolyKV, a system in which multiple concurrent inference agents share a single, asymmetrically compressed KV cache pool. Rather than allocating a separate KV cache per agent -- the standard …

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Mathematics Preprint PDF DOI

Carnapian Frameworks and Categoricity of Arithmetic via Inferential $\omega$-logics

John T. Baldwin, Constantin C. Brincus · 2026

We provided in \cite{BaldwinBrincusI} extensions of first order logic by modified inferential definitions of the classical $\omega$-rule in $1$ or $2$ sorts. These logics are categorical in the infere…

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Economics & Finance Preprint PDF DOI

The Anatomy of a Decentralized Prediction Market: Microstructure Evidence from the Polymarket Order Book

Philipp D. Dubach · 2026

We study the microstructure of Polymarket, the largest on-chain prediction market, using a continuous tick-level archive of the public WebSocket order-book feed (30 billion events over 52 days) joined…

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Physics Preprint PDF DOI

On the complexity of quantum numerical integration: an angle-structure characterization

Francisco Chinesta, Antonio Falco, Daniela Falco-Pomares · 2026

We study numerical integration on $[0,1]$ by quantum amplitude estimation (QAE), focusing on the cost of constructing the amplitude oracle. Although QAE improves the statistical component of the integ…

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Mathematics Preprint PDF DOI

Quasi-Monte Carlo with a Hankel random digital net

Takashi Goda, Yang Liu, Raul Tempone · 2026

This paper proposes a new randomized design of digital nets in which the generating matrices are chosen to be random Hankel matrices. Compared with previous randomized designs of digital nets, this ap…

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Physics Preprint PDF DOI

Systematic Investigation of Acceptor Removal in HPK LGADs with Modified Gain Layers

Yua Murayama, Mahiro Kobayashi, Tomoka Imamura, Koji Nakamura, Issei Horikoshi, Koji Sato, Masato Terada, Minoru Hirose, Tatsuya Masubuchi, Sayuka Kita · 2026

Low-Gain Avalanche Diodes (LGADs) are fast silicon sensors with internal charge multiplication and are key candidates for precision timing layers in future high-energy hadron colliders. Their operatio…

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AI & Data Science Preprint PDF DOI

Knee-xRAI: An Explainable AI Framework for Automatic Kellgren-Lawrence Grading of Knee Osteoarthritis

Azmul A. Irfan, Nur Ahmad Khatim, Alfan Alfian Irfan, Achmad Zaki, Erike A. Suwarsono, Mansur M. Arief · 2026

Radiographic grading of knee osteoarthritis (KOA) with the Kellgren-Lawrence (KL) system is limited by inter-reader variability and the opacity of current deep learning approaches, which predict KL gr…

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AI & Data Science Preprint PDF DOI

Approximating Uniform Random Rotations by Two-Block Structured Hadamard Rotations in High Dimensions

Tomer Zilca, Gal Mendelson · 2026

Uniform random rotations are a useful primitive in applications such as fast Johnson-Lindenstrauss embeddings, kernel approximation, communication-efficient learning, and recent AI compression pipelin…

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AI & Data Science Preprint PDF DOI

H-SemiS: Hierarchical Fusion of Semi and Self-Supervised Learning for Knee Osteoarthritis Severity Grading

Chandravardhan Singh Raghaw, Anushka Parwal, Shahid Shafi Dar, Prajakta Darade, Nagendra Kumar · 2026

Knee osteoarthritis (KOA) is a degenerative joint disease that can lead to chronic pain, reduced mobility, and long-term disability. Automated severity grading from knee radiographs can support early …

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Physics Preprint PDF DOI

Lagrangian Proper Orthogonal Decomposition

Ron Shnapp, Stefano Brizzolara · 2026

We introduce a modal representation for Lagrangian trajectories in turbulence, termed Lagrangian Proper Orthogonal Decomposition (LPOD). An ensemble of particle trajectories is used to construct veloc…

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AI & Data Science Preprint PDF DOI

Reinforcing 3D Understanding in Point-VLMs via Geometric Reward Credit Assignment

Jingkun Chen, Ruoshi Xu, Mingqi Gao, Shengda Luo, Jungong Han · 2026

Point-Vision-Language Models promise to empower embodied agents with executable spatial reasoning, yet they frequently succumb to geometric hallucination where predicted 3D structures contradict the o…

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AI & Data Science Preprint PDF DOI

Preconditioned DeltaNet: Curvature-aware Sequence Modeling for Linear Recurrences

Neehal Tumma, Noel Loo, Daniela Rus · 2026

To address the increasing long-context compute limitations of softmax attention, several subquadratic recurrent operators have been developed. This work includes models such as Mamba-2, DeltaNet, Gate…

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AI & Data Science Preprint PDF DOI

Quantization robustness from dense representations of sparse functions in high-capacity kernel associative memory

Akira Tamamori · 2026

High-capacity associative memories based on Kernel Logistic Regression (KLR) are known for their exceptional performance but are hindered by high computational costs. This paper investigates the compr…

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AI & Data Science Preprint PDF DOI

Super Apriel: One Checkpoint, Many Speeds

SLAM Labs: Oleksiy Ostapenko, Raymond Li, Torsten Scholak, Alireza Mousavi-Hosseini, Aman Tiwari, Denis Kocetkov, Joel Lamy Poirier, Kelechi Ogueji, Nanda H Krishna, Rafael Pardinas, Sathwik Tejaswi Madhusudhan, Shruthan Radhakrishna, Srinivas Sunkara, Valerie Becaert · 2026

We release Super Apriel, a 15B-parameter supernet in which every decoder layer provides four trained mixer choices -- Full Attention (FA), Sliding Window Attention (SWA), Kimi Delta Attention (KDA), a…

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AI & Data Science Preprint PDF DOI

FG$^2$-GDN: Enhancing Long-Context Gated Delta Networks with Doubly Fine-Grained Control

Pingwei Sun, Yuxuan Hu, Jianchao Tan, Xue Wang, Jiaqi Zhang, Yifan Lu, Yerui Sun, Yuchen Xie, Xunliang Cai · 2026

Linear attention mechanisms have emerged as promising alternatives to softmax attention, offering linear-time complexity during inference. Recent advances such as Gated DeltaNet (GDN) and Kimi Delta A…

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AI & Data Science Preprint PDF DOI

Does Welsh media need a review? Detecting bias in Nation.Cymru's political reporting

Cai Parry-Jones · 2026

Wales' political landscape has been marked by growing accusations of bias in Welsh media. This paper takes the first computational step toward testing those claims by examining Nation.Cymru, a promine…

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AI & Data Science Preprint PDF DOI

Jupiter-N Technical Report

George Drayson · 2026

We present Jupiter-N, a hybrid reasoning model post-trained from Nemotron 3 Super, a fully open-source 120 billion parameter LLM. We target three objectives: (1) agentic capability via uncertainty-cur…

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Physics Preprint PDF DOI

Probabilistic Upscaling of Hydrodynamics in Geological Fractures Under Uncertainty

Sarah Perez, Florian Doster, Hannah Menke, Ahmed ElSheikh, Andreas Busch · 2026

Flow and transport in fractured geological media are strongly controlled by aperture heterogeneity and uncertainty in subsurface characterisation, yet most upscaling approaches rely on deterministic r…

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