Qwen Councils

All arXiv

arXiv preprints from January 1, 2026 through July 28, 2026 — 23:03:39 EST

0

Posted in cs.IR · 2026-01-12 · Hao Jiang, Zhi Yang, Annan Wang, Yichi Zhang, Weisi Lin

RLPO: Residual Listwise Preference Optimization for Long-Context Review Ranking

Review ranking is pivotal in e-commerce for prioritizing diagnostic and authentic feedback from the deluge of user-generated content. While large language models have improved semantic assessment, existing ranking paradigms face a persistent trade-off in long-context settings. Pointwise scoring is efficient but often fails to account...

💬 0 commentsarXiv:2601.07449v2PDF
0

Posted in hep-ph · 2026-01-12 · Yuanlin Gong, Jun Guo, Ning Liu, Liangliang Su, Wen-Na Yang

Constraints on Axion-Like Particles with the Silicon Detector at a Nuclear Reactor

Axion and axion-like particles (ALPs), predicted in various extensions of the Standard Model, can be abundantly produced in nuclear reactors via the Primakoff process. In this work, we explore the detection of ALPs in silicon detectors through plasmon excitations. Owing to their relativistic nature, reactor-produced ALPs can...

💬 0 commentsarXiv:2601.07448v2PDF
0

Posted in physics.acc-ph · 2026-01-12 · Luca Serafini, Vittoria Petrillo, Alessio DelDotto, Illya Drebot, Anna Giribono, Andrea Ghigo, Stefano Romeo, Andrea Renato Rossi, Cristina Vaccarezza, Fabio Villa, Massimo Ferrario

Consideration for a gamma source at EupraXia

In this paper, we present the potentiality and the application of a Compton source driven by the electron beam of EuPRAXIA, in interaction with a commercially available infrared laser.

💬 0 commentsarXiv:2601.07897v1PDF
0

Posted in cs.CV · 2026-01-12 · Mahdi Chamseddine, Didier Stricker, Jason Rambach

PanoSAMic: Panoramic Image Segmentation from SAM Feature Encoding and Dual View Fusion

Existing image foundation models are not optimized for spherical images having been trained primarily on perspective images. PanoSAMic integrates the pre-trained Segment Anything (SAM) encoder to make use of its extensive training and integrate it into a semantic segmentation model for panoramic images using multiple modalities. We...

💬 0 commentsarXiv:2601.07447v3PDF
0

Posted in stat.CO · 2026-01-12 · Alessandra Ragni, Lara Cavinato, Francesca Ieva

Penalized Likelihood Optimization for Adaptive Neighborhood Clustering in Time-to-Event Data with Group-Level Heterogeneity

The identification of patient subgroups with comparable event-risk dynamics plays a key role in supporting informed decision-making in clinical research. In such settings, it is important to account for the inherent dependence that arises when individuals are nested within higher-level units, such as hospitals. Existing survival...

💬 0 commentsarXiv:2601.07446v1PDF
0

Posted in physics.bio-ph · 2026-01-12 · Francesco Marcolli, Martin James, Agnese Seminara

Noise enhances odor source localization

We address the problem of inferring the location of a target that releases odor in the presence of turbulence. Input for the inference is provided by many sensors scattered within the odor plume. Drawing inspiration from distributed chemosensation in biology, we ask whether the accuracy of the inference is affected by proprioceptive...

💬 0 commentsarXiv:2601.07445v1PDF
0

Posted in cs.LO · 2026-01-12 · Zhipeng Chen, Haolun Tang, Jingyi Zhan

Formalization of Amicable Numbers Theory

This paper presents a formalization of the theory of amicable numbers in the Lean~4 proof assistant. Two positive integers $m$ and $n$ are called an amicable pair if the sum of proper divisors of $m$ equals $n$ and the sum of proper divisors of $n$ equals $m$. Our formalization introduces the proper divisor sum function $\propersum(n)...

💬 0 commentsarXiv:2601.07444v1PDF
0

Posted in cond-mat.mes-hall · 2026-01-12 · Md Afsar Reja, Awadhesh Narayan

Hexagonal Warping Control of Exceptional Points in Topological Insulator--Ferromagnetic Heterojunctions

Exceptional points (EPs) are non-Hermitian degeneracies, where both eigenvalues and eigenvectors coalesce, which are fundamentally distinct from their Hermitian counterparts. In this study, we investigate the influence of hexagonal warping on EPs emerging at the interfaces between topological insulators and ferromagnets. We...

💬 0 commentsarXiv:2601.07443v1PDF
0

Posted in cs.LG · 2026-01-12 · Maaz Ahmad, Iftekhar A. Karimi

Surrogate-based Optimization via Clustering for Box-Constrained Problems

Global optimization of large-scale, complex systems such as multi-physics black-box simulations and real-world industrial systems is important but challenging. This work presents a novel Surrogate-Based Optimization framework based on Clustering, SBOC for global optimization of such systems, which can be used with any surrogate...

💬 0 commentsarXiv:2601.07442v1PDF
0

Posted in quant-ph · 2026-01-12 · Partha Ghose

Einstein's Worries and Actual Physics: Beyond Pilot Waves

Tim Maudlin has argued that the standard formulation of quantum mechanics fails to provide a clear ontology and dynamics and that the de Broglie--Bohm pilot-wave theory offers a better completion of the formalism, more in line with Einstein's concerns. I suggest that while Bohmian mechanics improves on textbook quantum theory, it does...

💬 0 commentsarXiv:2601.07441v1PDF
0

Posted in cs.LG · 2026-01-12 · Fiona Redmen, Ethan Tregidga, James F. Steiner, Cecilia Garraffo

Variational Autoencoder with Normalizing flow for X-ray spectral fitting

Black hole X-ray binaries (BHBs) can be studied with spectral fitting to provide physical constraints on accretion in extreme gravitational environments. Traditional methods of spectral fitting such as Markov Chain Monte Carlo (MCMC) face limitations due to computational times. We introduce a probabilistic model, utilizing a...

💬 0 commentsarXiv:2601.07440v1PDF
0

Posted in astro-ph.IM · 2026-01-12 · Julián Garrido, Susana Sánchez, Edgar Ribeiro João, Roger Ianjamasimanana, Manuel Parra, Lourdes Verdes-Montenegro

Advanced computing for reproducibility of astronomy Big Data Science, with a showcase of AMIGA and the SKA Science prototype

The Square Kilometre Array Observatory (SKAO) faces unprecedented technological challenges due to the vast scale and complexity of its data. This paper provides an overview of research by the AMIGA group to address these computing and reproducibility challenges. We present advancements in semantic data models, analysis services...

💬 0 commentsarXiv:2601.07439v1PDF
0

Posted in physics.optics · 2026-01-12 · Chunzi Xing, Xiaokun Zhai, Chenxi Yang, Peilin Wang, Jiaxiang Mu, Xinmiao Yang, Yao Li, Xianxiong He, Yong Zhang, Haitao Dai, Liefeng Feng, Tingge Gao

Observation of anomalous exciton polariton bands in PEPI perovskite based microcavity at room temperature

Recently anomalous energy bands with negative mass attract intensive attention where non Hermiticity plays an important role. In this work we observe anomalous exciton polariton bands in PEPI perovskite based microcavity at room temperature. We simulate the anomalous band structure using a non-Hermitian coupled oscillator model which...

💬 0 commentsarXiv:2601.07438v1PDF
0

Posted in quant-ph · 2026-01-12 · Alessandro Coppo, Nicola Pranzini, Paola Verrucchi

Quantum model for black holes and clocks

We consider a stationary quantum system consisting of two non-interacting yet entangled subsystems, $Ξ$ and $Γ$. We identify a quantum theory characterizing $Ξ$ such that, in the quantum-to-classical crossover of the composite system, $Γ$ behaves as a test particle within the gravitational field of a Schwarzschild Black Hole (SBH)...

💬 0 commentsarXiv:2601.07437v1PDF
0

Posted in hep-ph · 2026-01-12 · Rajrupa Banerjee, Jogesh Rout, Sudhanwa Patra, Poonam Mehta

CP violating signal at DUNE in presence of nonstandard interactions and the role of second oscillation maxima

Neutrino oscillation among the three active neutrino flavors is well established and supported by experiments at diverse length scales and energy scales. It may be noted that five of the neutrino oscillation parameters in the three-flavor paradigm, namely the three mixing angles ($θ_{12}$, $θ_{13}$, $θ_{23}$) and the two mass-squared...

💬 0 commentsarXiv:2601.07435v2PDF
0

Posted in cs.RO · 2026-01-12 · Xin Guan, Fangguo Zhao, Qianyi Wang, Chengcheng Zhao, Jiming Chen, Shuo Li

LOONG: Online Time-Optimal Autonomous Flight for MAVs in Cluttered Environments

Autonomous flight of micro air vehicles (MAVs) in unknown, cluttered environments remains challenging for time-critical missions due to conservative maneuvering strategies. This article presents an integrated planning and control framework for high-speed, time-optimal autonomous flight of MAVs in cluttered environments. In each...

💬 0 commentsarXiv:2601.07434v1PDF
0

Posted in math.OC · 2026-01-12 · Arzu Ahmadova, Agamirza E. Bashirov

Design of Optimal Controls in Acausal LQG Problems

In control theory, a system which has output depending only on the present and past values of the input is said to be causal (or nonanticipative). Respectively, a system is acausal (or non-causal) if its output depends on future inputs as well. Overall majority of literature in stochastic control theory discusses causal systems. Only...

💬 0 commentsarXiv:2601.07433v1PDF
0

Posted in physics.soc-ph · 2026-01-12 · Amit Pradhan, Parongama Sen, Krzysztof Malarz

Extending the Biswas--Chatterjee--Sen model with nonconformists and inflexibles

Originally, the Biswas--Chatterjee--Sen model was shown to exhibit an order/disorder phase transition for a sufficiently large number of negative interactions among actors. In this paper, the model is extended by the existence of anticonformists and inflexibles. Anticonformists are actors who define themselves in opposition to the...

💬 0 commentsarXiv:2601.07432v4PDF
0

Posted in math.OC · 2026-01-12 · Andrea Cristofaro, Luca Zaccarian

Nonquadratic global asymptotic stability certificates for saturated linear feedbacks

We establish sufficient conditions for positive (semi-)definiteness, with or without radial unboundedness, for nonquadratic Lyapunov function constructed as sign-indefinite quadratic forms involving the state and the deadzone of a suitable input. We then use these conditions to build weak nonquadratic Lyapunov functions establishing...

💬 0 commentsarXiv:2601.07431v1PDF
0

Posted in cs.CL · 2026-01-12 · Qitan Lv, Tianyu Liu, Qiaosheng Zhang, Xingcheng Xu, Chaochao Lu

KALE: Enhancing Knowledge Manipulation in Large Language Models via Knowledge-aware Learning

Despite the impressive performance of large language models (LLMs) pretrained on vast knowledge corpora, advancing their knowledge manipulation-the ability to effectively recall, reason, and transfer relevant knowledge-remains challenging. Existing methods mainly leverage Supervised Fine-Tuning (SFT) on labeled datasets to enhance...

💬 0 commentsarXiv:2601.07430v1PDF
0

Posted in cond-mat.soft · 2026-01-12 · Diogo Vieira Saraiva, Anne Meike Hogeweg, Lisa Tran

Tuning cholesteric cellulose nanocrystal self-assembly in spherical confinement via salt and sonication

Cellulose nanocrystals (CNCs) self-assemble into cholesteric liquid crystals that produce structural color upon solvent removal. Although most studies examine this process in planar films, confinement within micron-sized water-in-oil droplets provides a powerful platform for resolving self-assembly dynamics in real time. Here, we...

💬 0 commentsarXiv:2601.07429v1PDF
0

Posted in math.LO · 2026-01-12 · Aleksander Cieślak, Takehiko Gappo, Arturo Martínez-Celis, Takashi Yamazoe

Cardinal invariants of idealized Miller null sets

This paper provides an extensive study of the $\mathscr{I}$-Miller null ideals $M_\mathscr{I}$, $σ$-ideals on the Baire space parametrized by ideals $\mathscr{I}$ on countable sets. These $σ$-ideals are associated to the idealized versions of Miller forcing in the same way that the meager ideal is associated to Cohen forcing. We...

💬 0 commentsarXiv:2601.07428v1PDF
0

Posted in quant-ph · 2026-01-12 · Jing-Tao Qiu, D. M. Tong, Xiao-Dong Yu

Scalable Certification of Entanglement in Quantum Networks

Quantum networks form the backbone of long-distance quantum information processing. Genuine multipartite entanglement (GME) serves as a key indicator of network performance and overall state quality. However, the widely used methods for certifying GME suffer from a major drawback that they either detect only a limited range of states...

💬 0 commentsarXiv:2601.07427v1PDF
0

Posted in math.AP · 2026-01-12 · Andrea Colesanti, Lei Qin, Paolo Salani

Log-concavity of solutions of parabolic equations related to the Ornstein-Uhlenbeck operator and applications

In this paper, we investigate the log-concavity of the kernel for the parabolic Ornstein-Uhlenbeck operator in a bounded, convex domain. Consequently, we get the preservation of the log-concavity of the initial datum by the related flow. As an application, we give another proof of a Brunn-Minkowski type inequality for the first...

💬 0 commentsarXiv:2601.07426v2PDF