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arXiv preprints from January 1, 2026 through July 21, 2026 — 09:05:29 EST

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Posted in physics.plasm-ph · 2026-01-19 · Miguel Cárdenas

Dimensional Analysis Approach to Experiments in Z pinch Devices

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 space. This surface compiles all the accessible information on the macroscopic physical behavior of each possible Z pinch discharge. We...

💬 0 commentsarXiv:2601.12692v1PDF
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Posted in astro-ph.HE · 2026-01-19 · Yujun Yao, Luming Sun, Tao Wu, Ning Jiang, Shiyan Zhong, Xinwen Shu

Rate of Repeating Tidal Disruption Events with 5--19 years interval

Statistics on tidal disruption events (TDEs) may be contaminated by repeating TDEs (rTDEs), which have been extensively discovered recently. However, the origin of rTDEs remains unclear. In addition, no statistical research on rTDEs with time intervals $>5$ years has been made yet. In this work, we searched for rTDEs with time...

💬 0 commentsarXiv:2601.12691v3PDF
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Posted in cs.HC · 2026-01-19 · Caleb Wohn, Buse Çarık, Xiaohan Ding, Sang Won Lee, Young-Ho Kim, Eugenia H. Rho

"Are we writing an advice column for Spock here?" Understanding Stereotypes in AI Advice for Autistic Users

Autistic individuals sometimes disclose autism when asking LLMs for social advice, hoping for more personalized responses. However, they also recognize that these systems may reproduce stereotypes, raising uncertainty about the risks and benefits of disclosure. We conducted a mixed-methods study combining a large-scale LLM audit...

💬 0 commentsarXiv:2601.12690v1PDF
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Posted in eess.SY · 2026-01-19 · Manobendu Sarker, Soumaya Cherkaoui

Priority-Based Bandwidth Allocation in Network Slicing-Enabled Cell-Free Massive MIMO Systems

This paper addresses joint admission control and per-user equipment (UE) bandwidth allocation to maximize weighted sum-rate in network slicing-enabled user-centric cell-free (CF) massive multiple-input multiple-output (mMIMO) systems when aggregate quality-of-service (QoS) demand may exceed available bandwidth. Specifically, we...

💬 0 commentsarXiv:2601.12689v2PDF
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Posted in cs.AI · 2026-01-19 · Xu Zhang, Qinghua Wang, Mengyang Zhao, Fang Wang, Cunquan Qu

Logic-Guided Multistage Inference for Explainable Multidefendant Judgment Prediction

Crime disrupts societal stability, making law essential for balance. In multidefendant cases, assigning responsibility is complex and challenges fairness, requiring precise role differentiation. However, judicial phrasing often obscures the roles of the defendants, hindering effective AI-driven analyses. To address this issue, we...

💬 0 commentsarXiv:2601.12688v1PDF
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Posted in eess.SY · 2026-01-19 · Manobendu Sarker, Soumaya Cherkaoui

Network Slicing Resource Management in Uplink User-Centric Cell-Free Massive MIMO Systems

This paper addresses the joint optimization of per-user equipment (UE) bandwidth allocation and UE-access point (AP) association to maximize weighted sum-rate while satisfying heterogeneous quality-of-service (QoS) requirements across enhanced mobile broadband (eMBB) and ultra-reliable low-latency communication (URLLC) slices in the...

💬 0 commentsarXiv:2601.12687v2PDF
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Posted in cs.AR · 2026-01-19 · Rafi Zahedi, Amin Zamani, Rahul Anilkumar

Best Practices for Large Load Interconnections: A North American Perspective on Data Centers

Large loads are expanding rapidly across North America, led by data centers, cryptocurrency mining, hydrogen production facilities, and heavy-duty charging stations. Each class presents distinct electrical characteristics, but data centers are drawing particular attention as AI deployment drives unprecedented capacity growth. Their...

💬 0 commentsarXiv:2601.12686v1PDF
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Posted in cs.HC · 2026-01-19 · Bhavesh Vuyyuru, Farnaz Jahanbakhsh

Persuasion in Online Conversations Is Associated with Alignment in Expressed Human Values

Online disagreements often fail to produce understanding, instead reinforcing existing positions or escalating conflict. Prior work on predictors of successful persuasion in online discourse has largely focused on surface features such as linguistic style or conversational structure, leaving open the role of underlying principles or...

💬 0 commentsarXiv:2601.12685v1PDF
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Posted in cs.CE · 2026-01-19 · Yuanhong Wu, Jingyan Xu, Wei Ye, Christina Schweikert, D. Frank Hsu

A Model Fusion Approach for Enhancing Credit Approval Decision Making

Credit default poses significant challenges to financial institutions and consumers, resulting in substantial financial losses and diminished trust. As such, credit default risk management has been a critical topic in the financial industry. In this paper, we present Combinatorial Fusion Analysis (CFA), a model fusion framework, that...

💬 0 commentsarXiv:2601.12684v1PDF
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Posted in cs.CV · 2026-01-19 · Liwei Liao, Ronggang Wang

GaussianTrimmer: Online Trimming Boundaries for 3DGS Segmentation

With the widespread application of 3D Gaussians in 3D scene representation, 3D scene segmentation methods based on 3D Gaussians have also gradually emerged. However, existing 3D Gaussian segmentation methods basically segment on the basis of Gaussian primitives. Due to the large variation range of the scale of 3D Gaussians,...

💬 0 commentsarXiv:2601.12683v1PDF
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Posted in cs.CL · 2026-01-19 · Jingyan Xu, Marcelo L. LaFleur, Christina Schweikert, D. Frank Hsu

Enhancing SDG-Text Classification with Combinatorial Fusion Analysis and Generative AI

(Natural Language Processing) NLP techniques such as text classification and topic discovery are very useful in many application areas including information retrieval, knowledge discovery, policy formulation, and decision-making. However, it remains a challenging problem in cases where the categories are unavailable, difficult to...

💬 0 commentsarXiv:2602.11168v1PDF
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Posted in cs.CV · 2026-01-19 · Banglei Guan, Dongcai Tan, Jing Tao, Ang Su, Yang Shang, Qifeng Yu

Fusion-Restoration Image Processing Algorithm to Improve the High-Temperature Deformation Measurement

In the deformation measurement of high-temperature structures, image degradation caused by thermal radiation and random errors introduced by heat haze restrict the accuracy and effectiveness of deformation measurement. To suppress thermal radiation and heat haze using fusion-restoration image processing methods, thereby improving the...

💬 0 commentsarXiv:2601.12682v1PDF
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Posted in cs.IR · 2026-01-19 · Yunwen Huang, Shiyong Hong, Xijun Xiao, Jinqiu Jin, Xuanyuan Luo, Zhe Wang, Zheng Chai, Shikang Wu, Yuchao Zheng, Jingjian Lin

HyFormer: Revisiting the Roles of Sequence Modeling and Feature Interaction in CTR Prediction

Industrial large-scale recommendation models (LRMs) face the challenge of jointly modeling long-range user behavior sequences and heterogeneous non-sequential features under strict efficiency constraints. However, most existing architectures employ a decoupled pipeline: long sequences are first compressed with a query-token based...

💬 0 commentsarXiv:2601.12681v2PDF
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Posted in cs.LG · 2026-01-19 · Zheng Fang, Wolfgang Mayer, Zeyu Zhang, Jian Wang, Hong-Yu Zhang, Wanli Li, Zaiwen Feng

MetaToolAgent: Towards Generalizable Tool Usage in LLMs through Meta-Learning

Tool learning is increasingly important for large language models (LLMs) to effectively coordinate and utilize a diverse set of tools in order to solve complex real-world tasks. By selecting and integrating appropriate tools, LLMs extend their capabilities beyond pure language understanding to perform specialized functions. However,...

💬 0 commentsarXiv:2601.12680v1PDF
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Posted in math.DG · 2026-01-19 · Kaixin Yao

Non-parabolic Spatial Hybrid Framed Curves and Their Applications in the Spatial Hybrid Number Space

In this paper, we define non-parabolic spatial hybrid framed curves in the spatial hybrid number space, which may have singularities, and prove the existence and uniqueness theorem for non-parabolic spatial hybrid framed curves. As applications, we define evolutes, involutes, pedal and contrapedal curves of non-parabolic spatial...

💬 0 commentsarXiv:2601.12679v2PDF
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Posted in cond-mat.str-el · 2026-01-19 · Antik Sihi, Subhasish Mandal, Kristjan Haule

Self-Consistent Coulomb Interactions from Constrained Dynamical Mean-Field Theory

We develop a self-consistent first-principles framework for determining the screened Coulomb interaction strength (U) based on constrained dynamical mean-field theory (cDMFT). Unlike conventional approaches, this method incorporates essential vertex corrections within the same embedded-DMFT formalism used for the electronic structure...

💬 0 commentsarXiv:2601.12678v2PDF
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Posted in math.PR · 2026-01-19 · Christian Hirsch, Takashi Owada, Ruiting Tong

Stable and Fréchet limit theorem for subgraph functionals in the hyperbolic random geometric graph

We study the fluctuations of subgraph counts in hyperbolic random geometric graphs on the $d$-dimensional Poincaré ball in the heterogeneous, heavy-tailed degree regime. In a hyperbolic random geometric graph whose vertices are given by a Poisson point process on a growing hyperbolic ball, we consider two basic families of subgraphs:...

💬 0 commentsarXiv:2601.12677v1PDF
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Posted in cond-mat.supr-con · 2026-01-19 · Z. J. Li, R . Z. Zhang, M. H. Xu, K. Y. Liang, Y. Zhao, Q. S. He, Q. Z. Zhou, B. R. Chen, P. H. Zhang, K. Z. Yao, H. X. Yao, L. Qiao, Y. H. Wang

Correlation between superfluid density and transition temperature in infinite-layer nickelate superconductor $Nd_{1-x}Sr_xNiO_2$

A strong correlation between zero-temperature superfluid density ($ρ_{s0}$) and transition temperature ($T_c$) is considered as a hallmark of unconventional superconductivity. However, their relationship has yet to be unveiled in nickelates due to sample inhomogeneity. Here we perform local susceptometry on an infinite-layer nickelate...

💬 0 commentsarXiv:2601.12676v1PDF
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Posted in math.NA · 2026-01-19 · Yongsheng Chen, Suddhasattwa Das, Wei Guo, Xinghui Zhong

Physics-informed machine learning for reconstruction of dynamical systems with invariant measure score matching

In this paper, we develop a novel mesh-free framework, termed physics-informed neural networks with invariant measure score matching (PINN-IMSM), for reconstructing dynamical systems from unlabeled point-cloud data that capture the system's invariant measure. The invariant density satisfies the steady-state Fokker-Planck (FP)...

💬 0 commentsarXiv:2601.12675v1PDF
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Posted in physics.optics · 2026-01-19 · Fuhao Liu, Ya Yan Lu

An efficient numerical method for simulating two-dimensional non-periodic metasurfaces

Metasurfaces are extremely useful for controlling and manipulating electromagnetic waves. Full-wave numerical simulation is highly desired for their design and optimization, but it is notoriously difficult, even for two-dimensional metasurfaces, when they comprise a huge number of subwavelength elements. This paper focuses on...

💬 0 commentsarXiv:2601.12674v1PDF
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Posted in q-fin.ST · 2026-01-19 · Yuanhong Wu, Wei Ye, Jingyan Xu, D. Frank Hsu

Bitcoin Price Prediction using Machine Learning and Combinatorial Fusion Analysis

In this work, we propose to apply a new model fusion and learning paradigm, known as Combinatorial Fusion Analysis (CFA), to the field of Bitcoin price prediction. Price prediction of financial product has always been a big topic in finance, as the successful prediction of the price can yield significant profit. Every machine learning...

💬 0 commentsarXiv:2602.00037v2PDF
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Posted in stat.ME · 2026-01-19 · Esteban Fernández-Morales, Emily M. Ko, Nandita Mitra, Youjin Lee, Arman Oganisian

A Bayesian framework for cost-effectiveness analysis with time-varying treatment decisions

Cost-effectiveness analyses (CEAs) compare the costs and health outcomes of treatment regimes to inform medical decisions. With observational claims data, CEAs must address nonrandom treatment assignment, administrative censoring, and irregularly spaced medical visits that reflect the continuous timing of care and treatment...

💬 0 commentsarXiv:2601.14309v1PDF
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Posted in physics.optics · 2026-01-19 · David Ripp, Nachiket Pathak, Vera M. Titze, Andreas Mischok, Marcel Schubert

Purely equatorial lasing in spherical liquid crystal polymer microlasers with engineered refractive index gradient

Liquid crystal whispering gallery mode microlasers show high sensitivity to external stimuli and distinct spectral features, rendering them ideally suited for various sensing applications. They also offer intrinsic anisotropic optical properties, which can be used to shape and manipulate light even inside spatially highly symmetric...

💬 0 commentsarXiv:2601.12673v1PDF
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Posted in cs.CV · 2026-01-19 · Qimao Chen, Fang Li, Shaoqing Xu, Zhiyi Lai, Zixun Xie, Yuechen Luo, Shengyin Jiang, Hanbing Li, Long Chen, Bing Wang, Yi Zhang, Zhi-Xin Yang

VILTA: A VLM-in-the-Loop Adversary for Enhancing Driving Policy Robustness

The safe deployment of autonomous driving (AD) systems is fundamentally hindered by the long-tail problem, where rare yet critical driving scenarios are severely underrepresented in real-world data. Existing solutions including safety-critical scenario generation and closed-loop learning often rely on rule-based heuristics, resampling...

💬 0 commentsarXiv:2601.12672v1PDF
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Posted in cs.CV · 2026-01-19 · Thamara Leandra de Deus Melo, Rodrigo Moreira, Larissa Ferreira Rodrigues Moreira, André Ricardo Backes

Exploiting Test-Time Augmentation in Federated Learning for Brain Tumor MRI Classification

Efficient brain tumor diagnosis is crucial for early treatment; however, it is challenging because of lesion variability and image complexity. We evaluated convolutional neural networks (CNNs) in a federated learning (FL) setting, comparing models trained on original versus preprocessed MRI images (resizing, grayscale conversion,...

💬 0 commentsarXiv:2601.12671v1PDF