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AI & Data Science Preprint PDF DOI

AstroVLM: Expert Multi-agent Collaborative Reasoning for Astronomical Imaging Quality Diagnosis

Yaohui Han, Tianshuo Wang, Zixi Zhao, Zhengchun Zhu, Shuo Ren, Yiru Wang, Rongliang Fu, Tinghuan Chen, Tsung-Yi Ho · 2026

Vision Language Models (VLMs) have been applied to several specific domains and have shown strong problem-solving capabilities. However, astronomical imaging, a quite complex problem involving multidi…

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AI & Data Science Preprint PDF DOI

SciFi: A Safe, Lightweight, User-Friendly, and Fully Autonomous Agentic AI Workflow for Scientific Applications

Qibin Liu, Julia Gonski · 2026

Recent advances in agentic AI have enabled increasingly autonomous workflows, but existing systems still face substantial challenges in achieving reliable deployment in real-world scientific research.…

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Mathematics Preprint PDF DOI

The Distributional Tail of Worst-Case Quickselect

Witold P{l}echa (Mathematical Institute, University of Wroc{l}aw) · 2026

We study the almost surely finite random variable $S$ defined by the distributional fixed-point equation \[ S \stackrel{d}{=} 1 + \max\{US', (1-U)S''\}, \qquad U \sim \mathrm{Unif}(0,1), \] where $S'$…

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Mathematics Preprint PDF DOI

Large fringe trees for random trees with given vertex degrees

Gabriel Berzunza Ojeda, Cecilia Holmgren, Svante Janson · 2026

This paper extends the study of fringe trees in random plane trees with a given degree statistic. While previous work established the asymptotic normality of the count of fringe trees isomorphic to a …

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Mathematics Preprint PDF DOI

Triangular Decomposition of the Crystal Lattice of Quantized Function Algebras: Revisited

Ayan Dey · 2026

Let $\g$ be a simple complex Lie algebra of type $G_2$, $F_4$, or $E_8$, and let $G$ be the unique connected simply connected Lie group with $\mathrm{Lie}(G)=\g$ with compact real form $K$. We prove a…

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AI & Data Science Preprint PDF DOI

DATASHI: A Parallel English-Tashlhiyt Corpus for Orthography Normalization and Low-Resource Language Processing

Nasser-Eddine Monir, Zakaria Baou · 2026

DATASHI is a new parallel English-Tashlhiyt corpus that fills a critical gap in computational resources for Amazigh languages. It contains 5,000 sentence pairs, including a 1,500-sentence subset with …

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Physics Preprint PDF DOI

The chemical DNA of the Magellanic Clouds VI. Origin and evolution of neutron-capture elements in the SMC

Marco Palla, Alessio Mucciarelli, Donatella Romano, Samuele Anoardo, Francesca Matteucci · 2026

Context. In the context of galactic archaeology, the study of the Small Magellanic Cloud (SMC) is of crucial importance, as it represents a unique opportunity to study a nearby massive dwarf system. H…

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Physics Preprint PDF DOI

Neural network backflow for ab-initio solid calculations

An-Jun Liu, Bryan K. Clark · 2026

Accurately simulating extended periodic systems is a central challenge in condensed matter physics. Neural quantum states (NQS) offer expressive wavefunctions for this task but face issues with scalab…

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AI & Data Science Preprint PDF DOI

VGGT-World: Transforming VGGT into an Autoregressive Geometry World Model

Xiangyu Sun, Shijie Wang, Fengyi Zhang, Lin Liu, Caiyan Jia, Ziying Song, Zi Huang, Yadan Luo · 2026

World models that forecast scene evolution by generating future video frames devote the bulk of their capacity to photometric details, yet the resulting predictions often remain geometrically inconsis…

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AI & Data Science Preprint PDF DOI

Decoupling Reasoning and Confidence: Resurrecting Calibration in Reinforcement Learning from Verifiable Rewards

Zhengzhao Ma, Xueru Wen, Boxi Cao, Yaojie Lu, Hongyu Lin, Jinglin Yang, Min He, Xianpei Han, Le Sun · 2026

Reinforcement Learning from Verifiable Rewards (RLVR) significantly enhances large language models (LLMs) reasoning but severely suffers from calibration degeneration, where models become excessively …

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Computer Science Preprint PDF DOI

A method for the automated generation of proof exercises with comparable levels of proving complexity

Joao Mendes, Joao Marcos, Patrick Terrematte · 2026

The automated generation of exercises may substantially reduce the time educators devote to manual exercise design. A major obstacle to the integration of such automation into teaching practice, howev…

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AI & Data Science Preprint PDF DOI

When Coordination Is Avoidable: A Monotonicity Analysis of Organizational Tasks

Harang Ju · 2026

Organizations devote substantial resources to coordination, yet which tasks actually require it for correctness remains unclear. The problem is acute in multi-agent AI systems, where coordination cost…

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Physics Preprint PDF DOI

Physics and causally constrained discrete-time neural models of turbulent dynamical systems

Fabrizio Falasca, Laure Zanna · 2026

We present a framework for constructing physics and causally constrained neural models of turbulent dynamical systems from data. We first formulate a finite-time flow map with strict energy-preserving…

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Physics Preprint PDF DOI

Relativistic and Recoil Corrections to Light-Fermion Vacuum Polarization for Bound Systems of Spin-0, Spin-1/2, and Spin-1 Particles

G. S. Adkins, U. D. Jentschura · 2026

In bound systems whose constituent particles are heavier than the electron, the dominant radiative correction to energy levels is given by light-fermion (electronic) vacuum polarization. In consequenc…

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AI & Data Science Preprint PDF DOI

Fat-Cat: Document-Driven Metacognitive Multi-Agent System for Complex Reasoning

Tong Yang, Yemin Wang, Chaoning Zhang, Aming Wu · 2026

The effectiveness of LLM-based agents is often limited not by model capacity alone, but by how efficiently contextual information is utilized at runtime. Existing agent frameworks rely on rigid, synta…

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AI & Data Science Preprint PDF DOI

Preserve-Then-Quantize: Balancing Rank Budgets for Quantization Error Reconstruction in LLMs

Yoonjun Cho, Dongjae Jeon, Soeun Kim, Moongyu Jeon, Albert No · 2026

Quantization Error Reconstruction (QER) reduces accuracy loss in Post-Training Quantization (PTQ) by approximating weights as $\mathbf{W} \approx \mathbf{Q} + \mathbf{L}\mathbf{R}$, using a rank-$r$ c…

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Mathematics Preprint PDF DOI

Convergence Analysis of Greedy Algorithms with Adaptive Relaxation in Hilbert Spaces

Pablo M. Berna, Andrea Garcia · 2026

The Power-Relaxed Greedy Algorithm (PRGA) was introduced as a generalization of the so called Relaxed Greedy Algorithm, introduced by DeVore and Temlyakov, by replacing the relaxation parameter $1/m$ …

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AI & Data Science Preprint PDF DOI

Combating Noisy Labels through Fostering Self- and Neighbor-Consistency

Zeren Sun, Yazhou Yao, Tongliang Liu, Zechao Li, Fumin Shen, Jinhui Tang · 2026

Label noise is pervasive in various real-world scenarios, posing challenges in supervised deep learning. Deep networks are vulnerable to such label-corrupted samples due to the memorization effect. On…

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Physics Preprint PDF DOI

Dimensional Analysis Approach to Experiments in Z pinch Devices

Miguel Cardenas · 2026

The physical behavior of discharges in Z pinch devices can be completely deciphered in terms of only three dimensionless parameters. These parameters can be arranged in a way that draw a surface in 3D…

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AI & Data Science Preprint PDF DOI

Akasha 2: Hamiltonian State Space Duality and Visual-Language Joint Embedding Predictive Architectur

Yani Meziani · 2026

We present Akasha 2, a state-of-the-art multimodal architecture that integrates Hamiltonian State Space Duality (H-SSD) with Visual-Language Joint Embedding Predictive Architecture (VL-JEPA). The syst…

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