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arXiv preprints from January 1, 2026 through July 28, 2026 — 03:17:27 EST

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Posted in cs.CL · 2026-01-14 · Yunao Zheng, Xiaojie Wang, Lei Ren, Wei Chen

ROSA-Tuning: Enhancing Long-Context Modeling via Suffix Matching

Long-context capability and computational efficiency are among the central challenges facing today's large language models. Existing efficient attention methods reduce computational complexity, but they typically suffer from a limited coverage of the model state. This paper proposes ROSA-Tuning, a retrieval-and-recall mechanism for...

💬 0 commentsarXiv:2602.02499v2PDF
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Posted in cs.CR · 2026-01-14 · Francesco Capano, Jonas Böhler, Benjamin Weggenmann

SoK: Enhancing Cryptographic Collaborative Learning with Differential Privacy

In collaborative learning (CL), multiple parties jointly train a machine learning model on their private datasets. However, data can not be shared directly due to privacy concerns. To ensure input confidentiality, cryptographic techniques, e.g., multi-party computation (MPC), enable training on encrypted data. Yet, even securely...

💬 0 commentsarXiv:2601.09460v1PDF
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Posted in cs.IR · 2026-01-14 · Pei-Chi Lo, Thomas Y. Lu

Dissecting Judicial Reasoning in U.S. Copyright Damage Awards

Judicial reasoning in copyright damage awards poses a core challenge for computational legal analysis. Although federal courts follow the 1976 Copyright Act, their interpretations and factor weightings vary widely across jurisdictions. This inconsistency creates unpredictability for litigants and obscures the empirical basis of legal...

💬 0 commentsarXiv:2601.09459v1PDF
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Posted in math.DS · 2026-01-14 · Gaurav Saini, Bappa Ghosh, Sunita Chand

Qualitative analysis and numerical investigations of time-fractional Zika virus model arising in population dynamics

Epidemic models play a crucial role in population dynamics, offering valuable insights into disease transmission while aiding in epidemic prediction and control. In this paper, we analyze the mathematical model of the time-fractional Zika virus transmission for human and mosquito populations. The fractional derivative is considered in...

💬 0 commentsarXiv:2601.11636v2PDF
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Posted in nucl-ex · 2026-01-14 · Tadafumi Kishimoto

Breakeven in Nuclear Fusion via Electron-Free Target

Nuclear fusion promises a nearly limitless energy source, but achieving breakeven-where fusion output exceeds input-requires extreme plasma conditions and complex confinement systems. Here we propose an alternative approach based on beam-target interactions, introducing a simple energy-based criterion that compares fusion energy...

💬 0 commentsarXiv:2601.09458v3PDF
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Posted in math.DG · 2026-01-14 · Yuchen Bi, Jie Zhou

Linear Quantitative Rigidity for Almost-CMC Surfaces

We prove a quantitative rigidity result for almost constant mean curvature spheres in $\mathbb{R}^3$. Under a sub--two--sphere Willmore bound and a small $L^2$--CMC defect, we show that an almost--CMC surface is close to the round sphere, with linear control of the $W^{2,2}$--distance of the parametrization and the $L^\infty$--norm of...

💬 0 commentsarXiv:2601.09457v1PDF
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Posted in cs.SE · 2026-01-14 · Stephan Ferenz, Oliver Werth, Astrid Nieße

Towards a Metadata Schema for Energy Research Software

Domain-specific metadata schemas are essential to improve the findability and reusability of research software and to follow the FAIR4RS principles. However, many domains, including energy research, lack established metadata schemas. To address this gap, we developed a metadata schema for energy research software based on a...

💬 0 commentsarXiv:2601.09456v1PDF
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Posted in cs.LG · 2026-01-14 · André Artelt, Martin Olsen, Kevin Tierney

On the Hardness of Computing Counterfactual and Semifactual Explanations in XAI

Providing clear explanations to the choices of machine learning models is essential for these models to be deployed in crucial applications. Counterfactual and semi-factual explanations have emerged as two mechanisms for providing users with insights into the outputs of their models. We provide an overview of the computational...

💬 0 commentsarXiv:2601.09455v1PDF
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Posted in math.CO · 2026-01-14 · Yichen Wang, Ervin Győri

The maximum number of triangles in graphs without the square of a path

The generalized Turán number for $H$ of $G$, denoted by $\ex(n,H,G)$, is the maximum number of copies of $H$ in an $n$-vertex $G$-free graph. When $H$ is an edge, $\ex(n,H,G)$ is the classical Turán number $\ex(n,G)$. Let $P_k$ be the path with $k$ vertices. The square of $P_k$, denoted by $P_k^2$, is obtained by joining the pairs of...

💬 0 commentsarXiv:2601.09454v1PDF
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Posted in econ.EM · 2026-01-14 · Daisuke Kurisu, Yuta Okamoto, Taisuke Otsu

Lee Bounds for Random Objects

In applied research, Lee (2009) bounds are widely applied to bound the average treatment effect in the presence of selection bias. This paper extends the methodology of Lee bounds to accommodate outcomes in a general metric space, such as compositional and distributional data. By exploiting a representation of the Fréchet mean of the...

💬 0 commentsarXiv:2601.09453v1PDF
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Posted in cs.CV · 2026-01-14 · Ahmad Rahimi, Valentin Gerard, Eloi Zablocki, Matthieu Cord, Alexandre Alahi

MAD: Motion Appearance Decoupling for efficient Driving World Models

Recent video diffusion models generate photorealistic, temporally coherent videos, yet they fall short as reliable world models for autonomous driving, where structured motion and physically consistent interactions are essential. Adapting these generalist video models to driving domains has shown promise but typically requires massive...

💬 0 commentsarXiv:2601.09452v1PDF
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Posted in cs.LG · 2026-01-14 · Yizhi Chen, Ahmed Hemani

Late Breaking Results: Quamba-SE: Soft-edge Quantizer for Activations in State Space Models

We propose Quamba-SE, a soft-edge quantizer for State Space Model (SSM) activation quantization. Unlike existing methods, using standard INT8 operation, Quamba-SE employs three adaptive scales: high-precision for small values, standard scale for normal values, and low-precision for outliers. This preserves outlier information instead...

💬 0 commentsarXiv:2601.09451v1PDF
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Posted in math.NA · 2026-01-14 · Patrick Ersing, Andrew R. Winters

A new class of entropy stable fluctuations for the discontinuous Galerkin method with application to the Saint-Venant-Exner model

In this work we consider entropy stable discontinuous Galerkin methods applied to nonconservative hyperbolic systems. We introduce a new class of entropy conservative fluctuations that allow us to construct entropy conservative schemes without any system-specific derivations. We demonstrate that a loss of entropy symmetrization for...

💬 0 commentsarXiv:2601.09450v1PDF
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Posted in cs.CV · 2026-01-14 · Darya Baranouskaya, Andrea Cavallaro

PrivLEX: Detecting legal concepts in images through Vision-Language Models

We present PrivLEX, a novel image privacy classifier that grounds its decisions in legally defined personal data concepts. PrivLEX is the first interpretable privacy classifier aligned with legal concepts that leverages the recognition capabilities of Vision-Language Models (VLMs). PrivLEX relies on zero-shot VLM concept detection to...

💬 0 commentsarXiv:2601.09449v1PDF
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Posted in cs.SD · 2026-01-14 · Ioannis Stylianou, Jon Francombe, Pablo Martinez-Nuevo, Sven Ewan Shepstone, Zheng-Hua Tan

One Prompt, Many Sounds: Modeling Listener Variability in LLM-Based Equalization

Conventional audio equalization is a static process that requires manual and cumbersome adjustments to adapt to changing listening contexts (e.g., mood, location, or social setting). In this paper, we introduce a Large Language Model (LLM)-based alternative that maps natural language text prompts to equalization settings. This enables...

💬 0 commentsarXiv:2601.09448v3PDF
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Posted in math.CO · 2026-01-14 · Gerold Jäger, Nacim Oijid

Exact number of flips required to sort a burnt stack of pancakes

In this work, we consider the burnt pancake problem, which is a well-studied problem going back to a work of Gates and Papadimitriou from 1979.The problem is to sort a stack of~$n$ one-sided burnt pancakes of different sizes, by a sequence of flips of the top pancakes, such that at the end of the flipping sequence the pancakes have...

💬 0 commentsarXiv:2601.09447v2PDF
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Posted in cs.CL · 2026-01-14 · Ramya Keerthy Thatikonda, Jiuzhou Han, Wray Buntine, Ehsan Shareghi

Improving Symbolic Translation of Language Models for Logical Reasoning

The use of formal language for deductive logical reasoning aligns well with language models (LMs), where translating natural language (NL) into first-order logic (FOL) and employing an external solver results in a verifiable and therefore reliable reasoning system. However, smaller LMs often struggle with this translation task,...

💬 0 commentsarXiv:2601.09446v1PDF
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Posted in cs.CL · 2026-01-14 · Minh Vu Pham, Hsuvas Borkakoty, Yufang Hou

Where Knowledge Collides: A Mechanistic Study of Intra-Memory Knowledge Conflict in Language Models

In language models (LMs), intra-memory knowledge conflict largely arises when inconsistent information about the same event is encoded within the model's parametric knowledge. While prior work has primarily focused on resolving conflicts between a model's internal knowledge and external resources through approaches such as fine-tuning...

💬 0 commentsarXiv:2601.09445v1PDF
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Posted in cs.RO · 2026-01-14 · Lauri Suomela, Naoki Takahata, Sasanka Kuruppu Arachchige, Harry Edelman, Joni-Kristian Kämäräinen

Data Scaling for Navigation in Unknown Environments

Generalization of imitation-learned navigation policies to environments unseen in training remains a major challenge. We address this by conducting the first large-scale study of how data quantity and data diversity affect real-world generalization in end-to-end, map-free visual navigation. Using a curated 4,565-hour crowd-sourced...

💬 0 commentsarXiv:2601.09444v2PDF
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Posted in math.RT · 2026-01-14 · Isaac Bird

Definable functors and Brown--Adams representability

The question of when the derived category of a ring satisfies Brown--Adams representability is revisited via studying the transfer of pure homological dimension along definable functors: it is shown that, for any ring, the pure global dimension of the derived category is at least the pure global dimension of the ring; expanding...

💬 0 commentsarXiv:2601.09443v1PDF
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Posted in stat.ME · 2026-01-14 · Joanna Hindley, Charlotte Hartley, Jennifer Hellier, Kate Sturgeon, Sophie Greenwood, Ian Newsome, Katherine Barrett, Debs Smith, Tra My Pham, Dongquan Bi, Beatriz Goulao, Suzie Cro, Brennan C Kahan

Tools to help patients and other stakeholders' input into choice of estimand and intercurrent event strategy in randomised trials

Estimands can help to clarify the research questions being addressed in randomised trials. Because the choice of estimand can affect how relevant trial results are to patients and other stakeholders, such as clinicians or policymakers, it is important for them to be involved in these decisions. However, there are barriers to having...

💬 0 commentsarXiv:2601.09442v1PDF
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Posted in math.DG · 2026-01-14 · Beomjun Choi, Wenkui Du, Ziyi Zhao

Classification of ancient ovals in higher dimensional mean curvature flow

We study compact non-selfsimilar ancient noncollapsed solutions to the mean curvature flow in $\mathbb{R}^{n+1}$, called ancient ovals. Our main result is the classification of $k$-ovals: any $k$-oval (characterized by having cylindrical blow down $\mathbb{R}^k\times S^{n-k}$ and the quadratic bending asymptotics) belongs, up to...

💬 0 commentsarXiv:2601.09441v1PDF
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Posted in cs.SE · 2026-01-14 · Yi Gao, Xing Hu, Tongtong Xu, Jiali Zhao, Xiaohu Yang, Xin Xia

DepRadar: Agentic Coordination for Context Aware Defect Impact Analysis in Deep Learning Libraries

Deep learning libraries like Transformers and Megatron are now widely adopted in modern AI programs. However, when these libraries introduce defects, ranging from silent computation errors to subtle performance regressions, it is often challenging for downstream users to assess whether their own programs are affected. Such impact...

💬 0 commentsarXiv:2601.09440v1PDF
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Posted in cs.LG · 2026-01-14 · Philipp Haim, Vasilis Ntziachristos, Torsten Enßlin, Dominik Jüstel

DeepLight: A Sobolev-trained Image-to-Image Surrogate Model for Light Transport in Tissue

In optoacoustic imaging, recovering the absorption coefficients of tissue by inverting the light transport remains a challenging problem. Improvements in solving this problem can greatly benefit the clinical value of optoacoustic imaging. Existing variational inversion methods require an accurate and differentiable model of this light...

💬 0 commentsarXiv:2601.09439v1PDF
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Posted in astro-ph.EP · 2026-01-14 · Oscar Barragán, Manuel Mallorquín, Jorge Fernández-Fernández, Faith Hawthorn, Alix V. Freckelton, Marina Lafarga, Michael Cretignier, Yoshi N. E. Eschen, Samuel Gill, Víctor J. S. Béjar, Nicolas Lodieu, Haochuan Yu, Thomas G. Wilson, David Anderson, Ioannis Apergis, Matthew Battley, Edward M. Bryant, Pía Cortés-Zuleta, Edward Gillen, James S. Jenkins, Baptiste Klein, James McCormac, Annabella Meech, Erik Meier-Valdés, Maximiliano Moyano, Annelies Mortier, Felipe Murgas, Louise D. Nielsen, Suman Saha, José I. Vines, Richard West, Peter J. Wheatley, Suzanne Aigrain

Mass estimates of the young TOI-451 transiting planets: Multidimensional Gaussian Process on stellar spectroscopic and photometric signals

The young TOI-451 planetary system, aged 125 Myr, provides a unique opportunity to test theories of planetary internal structures and atmospheric mass loss through examination of its three transiting planets. We present an exhaustive photometric and spectroscopic follow-up to determine the orbital and physical properties of the...

💬 0 commentsarXiv:2601.09438v1PDF