Qwen Councils

All arXiv

arXiv preprints from January 1, 2026 through September 23, 2026 — 04:40:19 EST

0

Posted in astro-ph.HE · 2026-01-11 · Marc Van den Bossche, Geoffroy Lesur, Guillaume Dubus

Magnetic winds in resistive compact binary discs

Dwarf Novae and low-mass X-ray binaries are eruptive binary systems comprised of a Roche-lobe overflowing solar-type star and an accreting compact object. Their recurrence time can be explained by a low-accreting phase, the quiescence, during which the angular momentum transport parameter is inferred to be $α\approx 0.01$ by the Disc...

💬 0 commentsarXiv:2601.06994v1PDF
0

Posted in cs.CV · 2026-01-11 · Jie Zhu, Yiyang Su, Xiaoming Liu

Can Textual Reasoning Improve the Performance of MLLMs on Fine-grained Visual Classification?

Multi-modal large language models (MLLMs) exhibit strong general-purpose capabilities, yet still struggle on Fine-Grained Visual Classification (FGVC), a core perception task that requires subtle visual discrimination and is crucial for many real-world applications. A widely adopted strategy for boosting performance on challenging...

💬 0 commentsarXiv:2601.06993v2PDF
0

Posted in cs.IR · 2026-01-11 · Yixi Zhou, Fan Zhang, Yu Chen, Haipeng Zhang, Preslav Nakov, Zhuohan Xie

FinCARDS: Card-Based Analyst Reranking for Financial Document Question Answering

Financial question answering (QA) over long corporate filings requires evidence to satisfy strict constraints on entities, financial metrics, fiscal periods, and numeric values. However, existing LLM-based rerankers primarily optimize semantic relevance, leading to unstable rankings and opaque decisions on long documents. We propose...

💬 0 commentsarXiv:2601.06992v2PDF
0

Posted in eess.SP · 2026-01-11 · Triet M. Tran, Seyed Majid Razavi, Dee H. Wu, Sina Khanmohammadi

Continuous Energy Landscape Model for Analyzing Brain State Transitions

Energy landscape models characterize neural dynamics by assigning energy values to each brain state that reflect their stability or probability of occurrence. The conventional energy landscape models rely on binary brain state representation, where each region is considered either active or inactive based on some signal threshold....

💬 0 commentsarXiv:2601.06991v1PDF
0

Posted in math.CO · 2026-01-11 · Carl Johan Casselgren, Kalle Eriksson

Single conflict coloring and palette sparsification of uniform hypergraphs

We introduce and investigate single conflict coloring in the setting of r-uniform hypergraphs. We establish some basic properties of this hypergraph coloring model and study a probabilistic model of single conflict coloring where the conflicts for each edge are chosen randomly; in particular, we prove a sharp threshold-type result for...

💬 0 commentsarXiv:2601.06990v1PDF
0

Posted in stat.ME · 2026-01-11 · Hao-Xuan Sun, Song Xi Chen, Yumou Qiu

Localization Estimator for High Dimensional Tensor Covariance Matrices

This paper considers covariance matrix estimation of tensor data under high dimensionality. A multi-bandable covariance class is established to accommodate the need for complex covariance structures of multi-layer lattices and general covariance decay patterns. We propose a high dimensional covariance localization estimator for tensor...

💬 0 commentsarXiv:2601.06989v1PDF
0

Posted in quant-ph · 2026-01-11 · Yue Ban, Xi Chen

Counter-diabatic driving for fast spin control in a two-electron double quantum dot

The techniques of shortcuts to adiabaticity have been proposed to accelerate the "slow" adiabatic processes in various quantum systems with the applications in quantum information processing. In this paper, we study the counter-diabatic driving for fast adiabatic spin manipulation in a two-electron double quantum dot by designing...

💬 0 commentsarXiv:2601.06988v1PDF
0

Posted in quant-ph · 2026-01-11 · Yang-Yang Chen, Song Cheng

Dynamical Correlation of the Post-quench Non-thermal Equilibrium State

After a quantum quench, the integrable system is expected to relax to a non-thermal equilibrium state (NTES) whose local properties are believed to be governed by a generalized Gibbs ensemble (GGE). Combining quench action and the form factor approach, we compute the field-field correlation in the NTES produced by an interaction...

💬 0 commentsarXiv:2601.06987v1PDF
0

Posted in physics.ao-ph · 2026-01-11 · Satoshi Nakano, Kazuhiko Nishimura

Structural Cointegration of the Climate--Carbon Feedback: Evidence from the Last 130,000 Years

Using a gap-free, millennial-resolution ice-core record spanning the last 130,000 years, we identify the feedback architecture between Antarctic temperature and atmospheric CO$_2$. The series are found to be cointegrated, justifying estimation with a Vector Error Correction Model (VECM). The estimated long-run relationship yields a...

💬 0 commentsarXiv:2601.06986v4PDF
0

Posted in math.DG · 2026-01-11 · Boris Kruglikov, Eivind Schneider, Wijnand Steneker

On globally invariant Euler--Lagrange equations for curves

Invariant Lagrangians yield invariant Euler-Lagrange equations, and it was discussed in the literature how to compute those using various local methods. The focus of this paper is on global algebraic differential invariants. In this case the computation can be modified in several aspects. We will discuss relations with previous...

💬 0 commentsarXiv:2601.06985v1PDF
0

Posted in cond-mat.stat-mech · 2026-01-11 · Ousi Pan, Zhiqiang Fan, Shunjie Zhang, Jie Li, Jincan Chen, Shanhe Su

Fluctuation-Dissipation Limits in Quantum Thermoelectric Transport

As a fundamental measure of stability in nonequilibrium thermodynamics, fluctuations provide critical insight into the performance and reliability of heat engines. In this work, we establish universal fluctuation-dissipation bounds that directly link energy-current fluctuations to both the entropy production rate and steady-state...

💬 0 commentsarXiv:2601.06984v1PDF
0

Posted in physics.optics · 2026-01-11 · Ji Tong Wang, Nicolae C. Panoiu

Hybrid Bound States in the Continuum beyond Diffraction Limit

Bound states in the continuum (BICs) have greatly impacted our ability to manipulate light-matter interaction at the nanoscale. However, in periodic structures, BICs are typically realized below the diffraction limit, thus leaving a broad spectral domains largely unexplored. Here, we introduce a new type of at-$Γ$ BICs of photonic...

💬 0 commentsarXiv:2601.06983v1PDF
0

Posted in stat.ML · 2026-01-11 · Zhiyuan Tang, Wanning Chen, Kan Xu

Match Made with Matrix Completion: Efficient Learning under Matching Interference

Matching markets face increasing needs to learn the matching qualities between demand and supply for effective design of matching policies. In practice, the matching rewards are high-dimensional due to the growing diversity of participants. We leverage a natural low-rank matrix structure of the matching rewards in these two-sided...

💬 0 commentsarXiv:2601.06982v1PDF
0

Posted in cs.SD · 2026-01-11 · Boxiang Wang, Zhengding Luo, Haowen Li, Dongyuan Shi, Junwei Ji, Ziyi Yang, Woon-Seng Gan

Directional Selective Fixed-Filter Active Noise Control Based on a Convolutional Neural Network in Reverberant Environments

Selective fixed-filter active noise control (SFANC) is a novel approach capable of mitigating noise with varying frequency characteristics. It offers faster response and greater computational efficiency compared to traditional adaptive algorithms. However, spatial factors, particularly the influence of the noise source location, are...

💬 0 commentsarXiv:2601.06981v1PDF
0

Posted in cs.CL · 2026-01-11 · Dongsuk Jang, Ziyao Shangguan, Kyle Tegtmeyer, Anurag Gupta, Jan Czerminski, Sophie Chheang, Arman Cohan

MedTutor: A Retrieval-Augmented LLM System for Case-Based Medical Education

The learning process for medical residents presents significant challenges, demanding both the ability to interpret complex case reports and the rapid acquisition of accurate medical knowledge from reliable sources. Residents typically study case reports and engage in discussions with peers and mentors, but finding relevant...

💬 0 commentsarXiv:2601.06979v2PDF
0

Posted in physics.ins-det · 2026-01-11 · James Le Houx

Benchmarking Autonomy in Scientific Experiments: A Hierarchical Taxonomy for Autonomous Large-Scale Facilities

The transition from automated data collection to fully autonomous discovery requires a shared vocabulary to benchmark progress. While the automotive industry relies on the SAE J3016 standard, current taxonomies for autonomous science presuppose an owner-operator model that is incompatible with the operational rigidities of Large-Scale...

💬 0 commentsarXiv:2601.06978v1PDF
0

Posted in math.OC · 2026-01-11 · Zhengjie Xiong, Yangyang Xu

Alternating Direction Method of Multipliers for nonlinear constrained convex problems and applications to distributed resource allocation and constrained machine learning

We study a class of structured convex optimization problems, which have a two-block separable objective and nonlinear functional constraints as well as affine constraints that couple the two block variables. Such problems naturally arise from distributed resource allocation and constrained machine learning. To achieve high...

💬 0 commentsarXiv:2601.06977v2PDF
0

Posted in cs.AI · 2026-01-11 · Sen Wang, Bangwei Liu, Zhenkun Gao, Lizhuang Ma, Xuhong Wang, Yuan Xie, Xin Tan

Explore with Long-term Memory: A Benchmark and Multimodal LLM-based Reinforcement Learning Framework for Embodied Exploration

An ideal embodied agent should possess lifelong learning capabilities to handle long-horizon and complex tasks, enabling continuous operation in general environments. This not only requires the agent to accurately accomplish given tasks but also to leverage long-term episodic memory to optimize decision-making. However, existing...

💬 0 commentsarXiv:2601.10744v2PDF
0

Posted in math.OC · 2026-01-11 · José Niño-Mora, Ángel Pellitero García

A belief-state restless bandit model for treatment adherence: Whittle indexability via partial conservation laws

We study clinically motivated capacity-constrained treatment-adherence outreach through a belief-state restless multi-armed bandit model, in which each patient is a partially observed two-state Markov decision process and interventions induce reset-type belief dynamics. For the discounted criterion, partial conservation law...

💬 0 commentsarXiv:2601.06976v2PDF
0

Posted in astro-ph.EP · 2026-01-11 · Heikki Salo, Bruno Sicardy

Rings around irregular bodies. II. Numerical simulations of the 1/3 spin-orbit resonance confinement and applications to Chariklo

Rings have been found around Chariklo, Haumea and Quaoar, three small objects of the Solar System. All these rings are observed near the second-order spin-orbit resonances (SORs) 1/3 or 5/7 with the central body, suggesting an active confinement mechanism by these resonances. Our goal is to understand how collisional rings can be...

💬 0 commentsarXiv:2601.06975v1PDF
0

Posted in cs.CL · 2026-01-11 · Quoc-An Nguyen, Thi-Minh-Thu Vu, Bich-Dat Nguyen, Dinh-Quang-Minh Tran, Hoang-Quynh Le

UETQuintet at BioCreative IX -- MedHopQA: Enhancing Biomedical QA with Selective Multi-hop Reasoning and Contextual Retrieval

Biomedical Question Answering systems play a critical role in processing complex medical queries, yet they often struggle with the intricate nature of medical data and the demand for multi-hop reasoning. In this paper, we propose a model designed to effectively address both direct and sequential questions. While sequential questions...

💬 0 commentsarXiv:2601.06974v1PDF
0

Posted in cs.CL · 2026-01-11 · Davide Baldelli, Ali Parviz, Amal Zouaq, Sarath Chandar

LLMs Can't Play Hangman: On the Necessity of a Private Working Memory for Language Agents

As LLMs move from text completion toward autonomous agents, they remain constrained by the standard chat interface, which lacks private working memory. This raises a fundamental question: can agents reliably perform interactive tasks that depend on hidden state? We define Private State Interactive Tasks (PSITs), which require agents...

💬 0 commentsarXiv:2601.06973v1PDF
0

Posted in cs.CL · 2026-01-11 · Nathan Roll, Pranav Bhalerao, Martijn Bartelds, Arjun Pawar, Yuka Tatsumi, Tolulope Ogunremi, Chen Shani, Calbert Graham, Meghan Sumner, Dan Jurafsky

Categorize Early, Integrate Late: Divergent Processing Strategies in Automatic Speech Recognition

In speech language modeling, two architectures dominate the frontier: the Transformer and the Conformer. However, it remains unknown whether their comparable performance stems from convergent processing strategies or distinct architectural inductive biases. We introduce Architectural Fingerprinting, a probing framework that isolates...

💬 0 commentsarXiv:2601.06972v2PDF
0

Posted in cond-mat.mtrl-sci · 2026-01-11 · Jiaxin Chen, Tianjiao Wan, Hui Geng, Liang Xiong, Guohong Wang, Yihan Zhao, Longxiang Deng, Zijian Gao, Susu Fang, Zheng Luo, Huaimin Wang, Shanshan Wang, Kele Xu

Data-driven active learning approaches for accelerating materials discovery

Materials discovery is a cornerstone of modern technological advancement, yet it remains constrained by traditional trial-and-error paradigms and the inherent bias of human intuition. Artificial intelligence (AI) has emerged as a transformative tool in materials science by effectively modeling structure-property relationships. Despite...

💬 0 commentsarXiv:2601.06971v3PDF