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Robust principal component analysis (RPCA) has drawn significant attentions due to its powerful capability in recovering low-rank matrices as well as successful appplications in various real world problems. The current state-of-the-art…

机器学习 · 计算机科学 2019-04-17 Chong Peng , Chenglizhao Chen , Zhao Kang , Jianbo Li , Qiang Cheng

Robust principal component analysis (RPCA) is a widely used tool for dimension reduction. In this work, we propose a novel non-convex algorithm, coined Iterated Robust CUR (IRCUR), for solving RPCA problems, which dramatically improves the…

机器学习 · 统计学 2021-02-09 HanQin Cai , Keaton Hamm , Longxiu Huang , Jiaqi Li , Tao Wang

Large Language Models (LLMs) have demonstrated remarkable fluency across a range of natural language tasks, yet remain vulnerable to hallucinations - factual inaccuracies that undermine trust in real world deployment. We present…

计算与语言 · 计算机科学 2025-07-16 Kaushik Dwivedi , Padmanabh Patanjali Mishra

context: The combination of image restoration and a Fabry-P\'{e}rot interferometer (FPI) based instrument in solar observations results in specific calibration issues. FPIs generally show variations over the field-of-view, while in the…

太阳与恒星天体物理 · 物理学 2015-05-20 R. S. Schnerr , J. de la Cruz Rodriguez , M. van Noort

Iterative prompt refinement is central to reproducing target images with text to image generative models. Previous studies have incorporated image similarity metrics (ISMs) as additional feedback to human users. Existing ISMs such as LPIPS…

计算机视觉与模式识别 · 计算机科学 2026-04-03 Khoi Trinh , Jay Rothenberger , Scott Seidenberger , Dimitrios Diochnos , Anindya Maiti

Deep learning has been successfully demonstrated in MRI reconstruction of accelerated acquisitions. However, its dependence on representative training data limits the application across different contrasts, anatomies, or image sizes. To…

信号处理 · 电气工程与系统科学 2019-09-20 Chaoping Zhang , Florian Dubost , Marleen de Bruijne , Stefan Klein , Dirk H. J. Poot

Low-Rank Adaptation (LoRA) has proven effective in reducing computational costs while maintaining performance comparable to fully fine-tuned foundation models across various tasks. However, its fixed low-rank structure restricts its…

计算机视觉与模式识别 · 计算机科学 2025-07-02 Chuyan Zhang , Kefan Wang , Yun Gu

In this paper, we present a predictor-corrector strategy for constructing rank-adaptive dynamical low-rank approximations (DLRAs) of matrix-valued ODE systems. The strategy is a compromise between (i) low-rank step-truncation approaches…

数值分析 · 数学 2022-09-09 Cory Hauck , Stefan Schnake

Large Language Models (LLMs) have demonstrated remarkable capabilities across diverse natural language processing tasks, yet they remain susceptible to hallucinations -- generating content that is factually incorrect, unfaithful to provided…

计算与语言 · 计算机科学 2026-05-25 Ahmed Cherif

Low-Rank Adaptation (LoRA) has become a popular solution for fine-tuning large language models (LLMs) in federated settings, dramatically reducing update costs by introducing trainable low-rank matrices. However, when integrated with…

密码学与安全 · 计算机科学 2026-01-05 Yueyan Dong , Minghui Xu , Qin Hu , Yinhao Xiao , Qi Luo , Yechao Zhang , Yue Zhang , Xiuzhen Cheng

Deep learning models for medical imaging often exhibit overconfidence, creating safety risks in ambiguous diagnostic scenarios. While Conformal Prediction (CP) provides distribution-free statistical guarantees, standard methods such as…

计算机视觉与模式识别 · 计算机科学 2026-05-14 One Octadion , Novanto Yudistira , Lailil Muflikhah

Retrieval-Augmented Generation (RAG) has become a primary technique for mitigating hallucinations in large language models (LLMs). However, incomplete knowledge extraction and insufficient understanding can still mislead LLMs to produce…

计算与语言 · 计算机科学 2025-06-30 Haichuan Hu , Congqing He , Xiaochen Xie , Quanjun Zhang

Parameter-efficient fine-tuning (PEFT) of pre-trained foundation models is increasingly attracting interest in medical imaging due to its effectiveness and computational efficiency. Among these methods, Low-Rank Adaptation (LoRA) is a…

计算机视觉与模式识别 · 计算机科学 2025-07-22 Ghassen Baklouti , Julio Silva-Rodríguez , Jose Dolz , Houda Bahig , Ismail Ben Ayed

Explainable AI (XAI) methods help identify which image regions influence a model's prediction, but often face a trade-off between detail and interpretability. Layer-wise Relevance Propagation (LRP) offers a model-aware alternative. However,…

机器学习 · 计算机科学 2025-10-02 Emerald Zhang , Julian Weaver , Samantha R Santacruz , Edward Castillo

Low-Rank Adaptation (LoRA) is a widely used finetuning method for large models. Its small memory footprint allows practitioners to adapt large models to specific tasks at a fraction of the cost of full finetuning. Different modifications…

机器学习 · 计算机科学 2025-06-26 Soufiane Hayou , Nikhil Ghosh , Bin Yu

In recent years, Parameter-Efficient Fine-Tuning (PEFT) methods like Low-Rank Adaptation (LoRA) have significantly enhanced the adaptability of large-scale pre-trained models. Weight-Decomposed Low-Rank Adaptation (DoRA) improves upon LoRA…

计算与语言 · 计算机科学 2024-12-10 Qiushi Wang , Yuchen Fan , Junwei Bao , Hongfei Jiang , Yang Song

Labeled data is a fundamental component in training supervised deep learning models for computer vision tasks. However, the labeling process, especially for ordinal image classification where class boundaries are often ambiguous, is prone…

计算机视觉与模式识别 · 计算机科学 2026-05-19 Alireza Sedighi Moghaddam , Mohammad Reza Mohammadi

The ability to selectively remove knowledge from medical segmentation networks is increasingly important for privacy compliance, ethical deployment, and continual dataset revision. We introduce Erase to Retain, a controllable unlearning…

计算机视觉与模式识别 · 计算机科学 2025-11-21 Nirjhor Datta , Md. Golam Rabiul Alam

Efficient fine-tuning plays a fundamental role in modern large models, with low-rank adaptation emerging as a particularly promising approach. However, the existing variants of LoRA are hampered by limited expressiveness, a tendency to…

计算与语言 · 计算机科学 2024-07-02 Siwei Li , Yifan Yang , Yifei Shen , Fangyun Wei , Zongqing Lu , Lili Qiu , Yuqing Yang

Areas under ROC (AUROC) and precision-recall curves (AUPRC) are common metrics for evaluating classification performance for imbalanced problems. Compared with AUROC, AUPRC is a more appropriate metric for highly imbalanced datasets. While…

机器学习 · 计算机科学 2023-04-14 Qi Qi , Youzhi Luo , Zhao Xu , Shuiwang Ji , Tianbao Yang