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AI & Data Science Preprint PDF DOI

SFT-then-RL Outperforms Mixed-Policy Methods for LLM Reasoning

Alexis Limozin, Eduard Durech, Torsten Hoefler, Imanol Schlag, Valentina Pyatkin ยท 2026

Recent mixed-policy optimization methods for LLM reasoning that interleave or blend supervised and reinforcement learning signals report improvements over the standard SFT-then-RL pipeline. We show thโ€ฆ

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Physics Preprint PDF DOI

Fixed-Reservoir vs Variational Quantum Architectures for Chaotic Dynamics: Benchmarking QRC and QPINN on the Lorenz System

Tushar Pandey ยท 2026

Deploying quantum machine learning on NISQ devices requires architectures where training overhead does not negate computational advantages. We systematically compare two quantum approaches for chaoticโ€ฆ

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Computer Science Preprint PDF DOI

RTCFake: Speech Deepfake Detection in Real-Time Communication

Jun Xue, Zhuolin Yi, Yihuan Huang, Yanzhen Ren, Yujie Chen, Cunhang Fan, Zicheng Su, Yonghong Zhang, Bo Cai ยท 2026

With the rapid advancement of speech generation technologies, the threat posed by speech deepfakes in real-time communication (RTC) scenarios has intensified. However, existing detection studies mainlโ€ฆ

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AI & Data Science Preprint PDF DOI

Transformer as an Euler Discretization of Score-based Variational Flow

Huadong Liao ยท 2026

Despite the Transformer's dominance across machine learning, its architecture remains largely heuristic and lacks a unified theoretical foundation. We introduce Score-based Variational Flow (SVFlow), โ€ฆ

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AI & Data Science Preprint PDF DOI

Impact of Age Specialized Models for Hypoglycemia Classification

Beyza Cinar, Maria Maleshkova ยท 2026

Disease progression varies with age and is influenced by underlying genetic, biochemical, and hormonal etiologies, suggesting the need for tailored monitoring, care, and medication beyond standard cliโ€ฆ

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AI & Data Science Preprint PDF DOI

Quasi-Equivariant Metanetworks

Viet-Hoang Tran, An Nguyen, Benoit Guerand, Thieu N. Vo, Tan M. Nguyen ยท 2026

Metanetworks are neural architectures designed to operate directly on pretrained weights to perform downstream tasks. However, the parameter space serves only as a proxy for the underlying function clโ€ฆ

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AI & Data Science Preprint PDF DOI

Caries DETR: Tooth Structure-aware Prior and Lesion-aware Dynamic Loss Refinement for DETR Based Caries Detection

Xuefen Liu, Xinquan Yang, Mianjie Zheng, Kun Tang, Xuguang Li, Xiaoqi Guo, Linlin Shen, He Meng ยท 2026

As dental caries appear as subtle, low-contrast lesions in intraoral imaging, existing deep learning models face significant challenges in the early detection of caries. While recent Transformer-basedโ€ฆ

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AI & Data Science Preprint PDF DOI

Information-Theoretic Measures in AI: A Practical Decision Guide

Nikolaos Al.Papadopoulos, Konstantinos E. Psannis ยท 2026

Information-theoretic (IT) measures are ubiquitous in artificial intelligence: entropy drives decision-tree splits and uncertainty quantification, cross-entropy is the default classification loss, mutโ€ฆ

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AI & Data Science Preprint PDF DOI

OptProver: Bridging Olympiad and Optimization through Continual Training in Formal Theorem Proving

Chenyi Li, Yanchen Nie, Zhenyu Ming, Gong Zhang, Kun Yuan, Zaiwen Wen ยท 2026

Recent advances in formal theorem proving have focused on Olympiad-level mathematics, leaving undergraduate domains largely unexplored. Optimization, fundamental to machine learning, operations researโ€ฆ

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AI & Data Science Preprint PDF DOI

Weakly Supervised Multicenter Nancy Index Scoring in Ulcerative Colitis Using Foundation Models

Adam Kukucka, Ondrej Fabian, Vit Musil, Tomas Brazdil ยท 2026

Histologic assessment of ulcerative colitis (UC) activity is an important endpoint in clinical trials and routine care, but manual grading with indices such as the Nancy histological index (NHI) is tiโ€ฆ

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Computer Science Preprint PDF DOI

Talking Slide Avatars: Open-Source Multimodal Communication Approach for Teaching

Xinxing Wu ยท 2026

Slide-based teaching is widely used in higher education, yet in online, hybrid, and asynchronous contexts, slides often lose the instructor presence, narrative continuity, and expressive framing that โ€ฆ

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Engineering Preprint PDF DOI

QuietWalk: Physics-Informed Reinforcement Learning for Ground Reaction Force-Aware Humanoid Locomotion Under Diverse Footwear

Hanze Hu, Luying Feng, Silu Chen, Tianjiang Zheng, Dexin Jiang, Wei Chen, Chi Zhang, Guilin Yang, Yaochu Jin ยท 2026

Humanoid robots operating in human-centered environments (e.g., homes, hospitals, and offices) must mitigate foot--ground impact transients, as impact-induced vibration and noise degrade user experienโ€ฆ

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AI & Data Science Preprint PDF DOI

Learning to Decipher from Pixels -- A Case Study of Copiale

Lei Kang, Giuseppe De Gregorio, Raphaela Heil, Alicia Fornes, Beata Megyesi ยท 2026

Historical encrypted manuscripts require both paleographic interpretation of cipher symbols and cryptanalytic recovery of plaintext. Most existing computational workflows rely on a transcription-firstโ€ฆ

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AI & Data Science Preprint PDF DOI

Transferable Human Mobility Network Reconstruction with neuroGravity

Jinming Yang, Shaoyu Huang, Zongyuan Huang, Yaohui Jin, Xiaokang Yang, Marta C. Gonzalez, Yanyan Xu ยท 2026

Accurate modeling of human mobility is critical for tackling urban planning and public health challenges. In undeveloped regions, the absence of comprehensive travel surveys necessitates reconstructinโ€ฆ

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Biology & Life Sciences Preprint PDF DOI

A multi-stage soft computing framework for complex disease modelling and decision support: A liver cirrhosis case study

Xueyuan Huang, Yuheng Wang, Yuanzhi He, Siqi Gou, Lu Bai, Wenqian Wu, Peifeng Liu, Aijia Wang, Tianhui Fan, Ze Zhou, Jiayu Xu ยท 2026

Liver cirrhosis is a major global health problem causing millions of deaths annually, and timely detection with aggressive treatment can significantly improve patients' quality of life. Modelling compโ€ฆ

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AI & Data Science Preprint PDF DOI

HAC: Parameter-Efficient Hyperbolic Adaptation of CLIP for Zero-Shot VQA

Francesco Dibitonto, Cigdem Beyan, Vittorio Murino ยท 2026

Recent advances in representation learning have shown that hyperbolic geometry can offer a more expressive alternative to the Euclidean embeddings used in CLIP models, capturing hierarchical structureโ€ฆ

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Computer Science Preprint PDF DOI

FlowPlace: Flow Matching for Chip Placement

Peng Xie, Ke Xue, Yunqi Shi, Ruo-Tong Chen, Chengrui Gao, Siyuan Xu, Chenjian Ding, Mingxuan Yuan, Chao Qian ยท 2026

Chip placement plays an important role in physical design. While generative models like diffusion models offer promising learning-based solutions, current methods have the following limitations: they โ€ฆ

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AI & Data Science Preprint PDF DOI

Structural Enforcement of Goal Integrity in AI Agents via Separation-of-Powers Architecture

Rong Xiang ยท 2026

Recent evidence suggests that frontier AI systems can exhibit agentic misalignment, generating and executing harmful actions derived from internally constructed goals, even without explicit user requeโ€ฆ

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AI & Data Science Preprint PDF DOI

VDLF-Net: Variational Feature Fusion for Adaptive and Few-Shot Visual Learning

Jiawei Yan ยท 2026

This paper introduces VDLF-Net, which attaches a compact VAE to a multi-scale CNN backbone. Latent vectors and softmax-gate support the backbone feature maps, while $\ell_2$-normalized embeddings fromโ€ฆ

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AI & Data Science Preprint PDF DOI

GraphPlanner: Graph Memory-Augmented Agentic Routing for Multi-Agent LLMs

Tao Feng, Haozhen Zhang, Zijie Lei, Peixuan Han, Jiaxuan You ยท 2026

LLM routing has achieved promising results in integrating the strengths of diverse models while balancing efficiency and performance. However, to support more realistic and challenging applications, rโ€ฆ

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