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artificial intelligence

18,661 papers

#artificial intelligence Preprint Open access Oct 2026

SRUG: A Fusion-Driven Generator Network for Medical Image Translation

MRI sequence synthesis aims to recover missing image contrast while preserving patient-specific anatomy. The choice of generation mechanism affects both optimization and the way source information reaches the synthesized image. In this study, we propose SRUG, a supervised standalone fusion-driven generator that learns...

Xihe Qiu, Yang Dai, Xiaoyu Tan et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

GPF-Net: Gated Progressive Fusion Learning for Polyp Re-Identification

Colonoscopic Polyp Re-Identification (ReID) aims to match the same polyp across a large gallery of images captured from different viewpoints and with different cameras, playing a critical role in computer-aided diagnosis for the prevention and treatment of colorectal cancer. However, the coarse granularity of high-leve...

Suncheng Xiang, Xiaoyang Wang, Junjie Jiang et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

One Permutation Is All You Need: Fast, Deterministic Feature Importance and Model Stress-Testing

Reliable estimation of feature contributions in machine learning models is essential for transparency, algorithmic fairness, and regulatory compliance. While permutation feature importance is widely used, classical implementations rely on repeated Monte Carlo shuffling, introducing significant computational overhead an...

Albert Dorador · 0 citations
#artificial intelligence Preprint Open access Oct 2026

A PDE Perspective on Generative Diffusion Models

Score-based diffusion models have emerged as a powerful class of generative methods, with successful applications across diverse domains. Despite their empirical success, their mathematical foundations remain only partially understood, particularly regarding the stability and consistency of the stochastic and partial d...

Kang Liu, Enrique Zuazua · 0 citations
#artificial intelligence Preprint Open access Oct 2026

Towards Scalable Meta-Learning of near-optimal Interpretable Models via Synthetic Model Generations

Decision trees are widely used in high-stakes fields like finance and healthcare due to their interpretability. This work introduces an efficient, scalable method for generating synthetic pre-training data to enable meta-learning of decision trees. Our approach samples near-optimal decision trees synthetically, creatin...

Kyaw Hpone Myint, Zhe Wu, Alexandre G. R. Day et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

AyurParam: A State-of-the-Art Bilingual Language Model for Ayurveda

Current large language models excel at broad, general-purpose tasks, but consistently underperform when exposed to highly specialized domains that require deep cultural, linguistic, and subject-matter expertise. In particular, traditional medical systems such as Ayurveda embody centuries of nuanced textual and clinical...

Sravan Gorugantu, Mohd Nauman, Vijay Devane et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

CAF\'E: Causal Black-Box Testing of Machine Unlearning

Machine learning models are increasingly deployed as software components that must evolve as requirements change. When specific training records or features must no longer influence a deployed model, machine unlearning aims to remove that influence without retraining from scratch. Because unlearning is often approximat...

Anna Mazhar, Sainyam Galhotra · 0 citations
#artificial intelligence Preprint Open access Oct 2026

Inverse-LLaVA: Rethinking Multimodal Alignment via Text-to-Vision Mapping

Connecting pretrained vision and language models usually involves projecting image features into the language model's input space. Inverse-LLaVA reverses this mapping within decoder attention: language states are projected to the visual feature dimension, and modality-specific maps produce residual query, key, and valu...

Xuhui Zhan, Tyler Derr · 0 citations
#artificial intelligence Preprint Open access Oct 2026

An Investigation of Robustness of LLMs in Mathematical Reasoning: Benchmarking with Mathematically-Equivalent Transformation of Advanced Mathematical Problems

Frontier large language models (LLMs) now reach near-ceiling accuracy on standard mathematical-reasoning benchmarks and gold-medal-level performance at the International Mathematical Olympiad. As these benchmarks saturate and their items leak into training data, a high score no longer shows whether a model reasons robu...

Yuren Hao, Xiang Wan, ChengXiang Zhai · 0 citations
#artificial intelligence Preprint Open access Oct 2026

Heterogeneous-Modal Unsupervised Domain Adaptation via Latent Space Bridging

Unsupervised domain adaptation (UDA) effectively bridges the domain gap between a labeled source domain and an unlabeled target domain, but assumes that the two domains share the same modality. Heterogeneous domain adaptation (HDA) instead handles different feature spaces across domains, yet requires labeled target sam...

Jiawen Yang, Shuhao Chen, Shengtao Zhang et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

Towards Reasonable Concept Bottleneck Models

We propose a novel, flexible, and efficient framework for designing Concept Bottleneck Models (CBMs) that enables practitioners to explicitly encode and extend their prior knowledge and beliefs about the concept-concept ($C-C$) and concept-task ($C \to Y$) relationships within the model's reasoning when making predicti...

Nektarios Kalampalikis, Kavya Gupta, Georgi Vitanov et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

BEAT: Balanced Frequency Adaptive Tuning for Long-Term Time-Series Forecasting

Long-term time-series forecasting supports a wide range of applications, including weather prediction and electricity demand planning. Frequency-domain methods address this task by decomposing observations into components that describe temporal variations at different scales. However, separate representations do not by...

Zhixuan Li, Naipeng Chen, Seonghwa Choi et al. · 0 citations

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