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arXiv preprints from January 1, 2026 through July 20, 2026 — 16:38:12 EST

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Posted in math.RA · 2026-01-18 · Chandrasekhar Gokavarapu

A curvature-regularized variational problem with an area constraint

Interlocking interfaces are commonly employed to mitigate relative sliding under shear.Indeed, Their geometry is typically selected on grounds of fabrication convenience rather than analytical optimality. There is no reason to suppose that circular or polygonal profiles minimize localized stress concentration under fixed geometric...

💬 0 commentsarXiv:2601.12201v1PDF
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Posted in cs.DS · 2026-01-18 · Mingyang Gong, Adiesha Liyanage, Braeden Sopp, Binhai Zhu

Computing Maximal Repeating Subsequences in a String

In this paper we initiate the study of computing a maximal (not necessarily maximum) repeating pattern in a single input string, where the corresponding problems have been studied (e.g., a maximal common subsequence) only in two or more input strings by Hirota and Sakai starting 2019. Given an input string $S$ of length $n$, we can...

💬 0 commentsarXiv:2601.12200v1PDF
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Posted in cs.CL · 2026-01-18 · Muhammad Umar Farooq, Oscar Saz

CTC-DID: CTC-Based Arabic dialect identification for streaming applications

This paper proposes a Dialect Identification (DID) approach inspired by the Connectionist Temporal Classification (CTC) loss function as used in Automatic Speech Recognition (ASR). CTC-DID frames the dialect identification task as a limited-vocabulary ASR system, where dialect tags are treated as a sequence of labels for a given...

💬 0 commentsarXiv:2601.12199v1PDF
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Posted in econ.EM · 2026-01-18 · Ilya Archakov

A Robust Similarity Estimator

We construct and analyze an estimator of association between random variables based on their similarity in both direction and magnitude. Under special conditions, the proposed measure becomes a robust and consistent estimator of the linear correlation, for which an exact sampling distribution is available. This distribution is...

💬 0 commentsarXiv:2601.12198v1PDF
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Posted in cs.CR · 2026-01-18 · Yi Qian, Kunwei Qian, Xingbang He, Ligeng Chen, Jikang Zhang, Tiantai Zhang, Haiyang Wei, Linzhang Wang, Hao Wu, Bing Mao

Mind the Gap: Action Rebinding Attacks against Android GUI Agents

Large multimodal model powered GUI agents are emerging as high-privilege operators on mobile platforms, entrusted to perceive screen content and inject inputs across application boundaries. While these agents aim to automate complex tasks, we demonstrate that their design introduces a fundamental conflict with Android's strict...

💬 0 commentsarXiv:2601.12349v3PDF
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Posted in cs.MA · 2026-01-18 · Haris Khan, Sadia Asif

Generative AI Agents for Controllable and Protected Content Creation

The proliferation of generative AI has transformed creative workflows, yet current systems face critical challenges in controllability and content protection. We propose a novel multi-agent framework that addresses both limitations through specialized agent roles and integrated watermarking mechanisms. Unlike existing multi-agent...

💬 0 commentsarXiv:2601.12348v1PDF
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Posted in cs.DC · 2026-01-18 · Pranjal Naman, Parv Agarwal, Hrishikesh Haritas, Yogesh Simmhan

RIPPLE++: An Incremental Framework for Efficient GNN Inference on Evolving Graphs

Real-world graphs are dynamic, with frequent updates to their structure and features due to evolving vertex and edge properties. These continual changes pose significant challenges for efficient inference in graph neural networks (GNNs). Existing vertex-wise and layer-wise inference approaches are ill-suited for dynamic graphs, as...

💬 0 commentsarXiv:2601.12347v1PDF
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Posted in cs.CV · 2026-01-18 · Peizhou Huang, Zixuan Zhong, Zhongwei Wan, Donghao Zhou, Samiul Alam, Xin Wang, Zexin Li, Zhihao Dou, Li Zhu, Jing Xiong, Chaofan Tao, Yan Xu, Dimitrios Dimitriadis, Tuo Zhang, Mi Zhang

MMDeepResearch-Bench: A Benchmark for Multimodal Deep Research Agents

Deep Research Agents (DRAs) generate citation-rich reports via multi-step search and synthesis, yet existing benchmarks mainly target text-only settings or short-form multimodal QA, missing end-to-end multimodal evidence use. We introduce MMDeepResearch-Bench (MMDR-Bench), a benchmark of 140 expert-crafted tasks across 21 domains,...

💬 0 commentsarXiv:2601.12346v1PDF
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Posted in eess.AS · 2026-01-18 · Jakob Kienegger, Timo Gerkmann

Adaptive Rotary Steering with Joint Autoregression for Robust Extraction of Closely Moving Speakers in Dynamic Scenarios

Latest advances in deep spatial filtering for Ambisonics demonstrate strong performance in stationary multi-speaker scenarios by rotating the sound field toward a target speaker prior to multi-channel enhancement. For applicability in dynamic acoustic conditions with moving speakers, we propose to automate this rotary steering using...

💬 0 commentsarXiv:2601.12345v2PDF
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Posted in quant-ph · 2026-01-18 · Eyal Buks

Disentanglement by deranking and by suppression of correlation

The spontaneous disentanglement hypothesis is motivated by some outstanding issues in standard quantum mechanics, including the problem of quantum measurement. The current study compares between some possible methods that can be used to implement the hypothesis. Disentanglement is formulated using a nonlinear operator, which can be...

💬 0 commentsarXiv:2601.12344v2PDF
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Posted in econ.EM · 2026-01-18 · Wayne Gao, Sukjin Han, Annie Liang

How Well Do LLMs Predict Human Behavior? A Measure of their Pretrained Knowledge

Large language models (LLMs) are increasingly used to predict human behavior. We propose a measure for evaluating how much knowledge a pretrained LLM brings to such a prediction: its equivalent sample size, defined as the amount of task-specific data needed to match the predictive accuracy of the LLM. We estimate this measure by...

💬 0 commentsarXiv:2601.12343v1PDF
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Posted in math.AP · 2026-01-18 · Yujin Guo, Yuan Lou, Hongfei Zhang

Asymptotic Behavior of the Principal Eigenvalue Problems with Large Divergence-Free Drifts

In this paper, we consider the following principal eigenvalue problem with a large divergence-free drift: \begin{equation}\label{0.1} -\varepsilonΔφ-2α\nabla m(x)\cdot\nabla φ+V(x)φ=λ_αφ \,\ \text{in}\, \ H_0^1(Ω),\tag{0.1} \end{equation} where the domain $Ω\subset \mathbb{R}^N (N\ge 1)$ is bounded with smooth boundary $\partialΩ$,...

💬 0 commentsarXiv:2601.12342v1PDF
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Posted in econ.GN · 2026-01-18 · Yukun Zhang, Tianyang Zhang

The Economics of Digital Intelligence Capital: Endogenous Depreciation and the Structural Jevons Paradox

This paper develops a micro-founded economic theory of the AI industry by modeling large language models as a distinct asset class-Digital Intelligence Capital-characterized by data-compute complementarities, increasing returns to scale, and relative (rather than absolute) valuation. We show that these features fundamentally reshape...

💬 0 commentsarXiv:2601.12339v1PDF
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Posted in cs.AI · 2026-01-18 · Kartikey Singh Bhandari, Manav Ganesh, Yashwant Viswanathan, Archit Agrawal, Dhruv Kumar, Pratik Narang

Actionable Advice from Reviews via Mixture of LoRA Experts: A Two-LLM Pipeline for Issue Extraction and Business Recommendations

Customer reviews contain detailed, domain specific signals about service failures and user expectations, but converting this unstructured feedback into actionable business decisions remains difficult. We study review-to-action generation: producing concrete, implementable recommendations grounded in review text. We propose a modular...

💬 0 commentsarXiv:2601.12338v1PDF
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Posted in cs.CV · 2026-01-18 · Jiahui Sheng, Xiaorun Li, Shuhan Chen

Turbo-GoDec: Exploiting the Cluster Sparsity Prior for Hyperspectral Anomaly Detection

As a key task in hyperspectral image processing, hyperspectral anomaly detection has garnered significant attention and undergone extensive research. Existing methods primarily relt on two prior assumption: low-rank background and sparse anomaly, along with additional spatial assumptions of the background. However, most methods only...

💬 0 commentsarXiv:2601.12337v1PDF
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Posted in astro-ph.SR · 2026-01-18 · Rakesh Pandey, Aina Palau, Alvaro Sánchez-Monge, Raghvendra Sahai, Rolf Kuiper, Luis F. Rodríguez, Carmen Sánchez Contreras, Saurabh Sharma

Unveiling the First O-Type Bloated Star Candidate through ALMA and EVLA Observations

We investigate the circumstellar environment of the O-type bloated star candidate IRAS 19520+2759 (I19520) using high-resolution observations from the Atacama Large Millimeter/submillimeter Array (ALMA) and the Expanded Very Large Array (EVLA). Radio continuum emission traced by the EVLA (C, K, and Q bands) exhibits a spectral index...

💬 0 commentsarXiv:2601.12336v1PDF
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Posted in math.AP · 2026-01-18 · M. Lanza de Cristoforis

Representation theorems for nonvariational solutions of the Helmholtz equation

We consider a possibly multiply connected bounded open subset $Ω$ of ${\mathbb{R}}^n$ of class $C^{\max\{1,m\},α}$ for some $m\in {\mathbb{N}}$, $α\in]0,1[$ and we plan to solve both the Dirichlet and the Neumann problem for the Helmholtz equation in $Ω$ and in the exterior of $Ω$ in terms of acoustic layer potentials. Then we turn to...

💬 0 commentsarXiv:2601.12335v3PDF
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Posted in eess.SY · 2026-01-18 · Alberto Bemporad

Worst-case Nonlinear Regression with Error Bounds

We propose an active-learning method for nonlinear minimax regression. Given a nonlinear function that can be arbitrarily evaluated over a compact set, we fit a surrogate model, such as a feedforward neural network, by minimizing the maximum absolute approximation error. To handle the nonsmoothness of this worst-case loss, we...

💬 0 commentsarXiv:2601.12334v2PDF
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Posted in physics.optics · 2026-01-18 · Lu Tian, Xianyang Liang, Liqin Tang, Rekha Gautam, Anna Bezryadina, Yu-Xuan Ren, Yi Liang, Zhigang Chen

Optical Self-Trapping and Nonlinear Light-Matter Interactions in Biological Soft Matter

Low-scattering, deep-penetration light transport in biological media remains a pivotal challenge for biophotonic technologies, including biomedical imaging, optical diagnostics, and photodynamic therapy. This review builds upon and extends our earlier studies of nonlinear optical self-trapping and optically induced waveguiding in...

💬 0 commentsarXiv:2601.12333v1PDF
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Posted in math.SP · 2026-01-18 · Daxiong Piao

A Complete Proof of the Simon--Lukic Conjecture for Higher-Order Szegő Theorems

This paper provides a complete proof of Simon-Lukic conjecture for orthogonal polynomials on the unit circle. For a probability measure $dμ= w(θ) \frac{dθ}{2π} + dμ_s$ with Verblunsky coefficients $α=\{α_n\}_{n=0}^\infty$, distinct singular points $(θ_k)_{k=1}^{\ell}$, and multiplicities $(m_k)_{k=1}^{\ell}$, we establish the...

💬 0 commentsarXiv:2601.12332v2PDF
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Posted in cs.CR · 2026-01-18 · Huanyi Ye, Jiale Guo, Ziyao Liu, Kwok-Yan Lam

Efficient Privacy-Preserving Retrieval Augmented Generation with Distance-Preserving Encryption

RAG has emerged as a key technique for enhancing response quality of LLMs without high computational cost. In traditional architectures, RAG services are provided by a single entity that hosts the dataset within a trusted local environment. However, individuals or small organizations often lack the resources to maintain data storage...

💬 0 commentsarXiv:2601.12331v1PDF
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Posted in cs.LG · 2026-01-18 · Zuha Fatima, Muhammad Anser Sohaib, Muhammad Talha, Ayesha Kanwal, Sidra Sultana, Nazia Perwaiz

IceWatch: Forecasting Glacial Lake Outburst Floods (GLOFs) using Multimodal Deep Learning

Glacial Lake Outburst Floods (GLOFs) pose a serious threat in high mountain regions. They are hazardous to communities, infrastructure, and ecosystems further downstream. The classical methods of GLOF detection and prediction have so far mainly relied on hydrological modeling, threshold-based lake monitoring, and manual satellite...

💬 0 commentsarXiv:2601.12330v1PDF
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Posted in cs.CV · 2026-01-18 · Mithlesh Singla, Seema Kumari, Shanmuganathan Raman

FlowIID: Single-Step Intrinsic Image Decomposition via Latent Flow Matching

Intrinsic Image Decomposition (IID) separates an image into albedo and shading components. It is a core step in many real-world applications, such as relighting and material editing. Existing IID models achieve good results, but often use a large number of parameters. This makes them costly to combine with other models in real-world...

💬 0 commentsarXiv:2601.12329v1PDF