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The rapid proliferation of highly realistic AI-generated images poses serious security threats such as misinformation and identity fraud. Detecting generated images in open-world settings is particularly challenging when they originate from…

密码学与安全 · 计算机科学 2026-01-19 Li Wang , Wenyu Chen , Xiangtao Meng , Zheng Li , Shanqing Guo

Uniform sampling of training data has been commonly used in traditional stochastic optimization algorithms such as Proximal Stochastic Gradient Descent (prox-SGD) and Proximal Stochastic Dual Coordinate Ascent (prox-SDCA). Although uniform…

机器学习 · 统计学 2015-01-05 Peilin Zhao , Tong Zhang

Proximal gradient algorithms (PGA), while foundational for inverse problems like image reconstruction, often yield unstable convergence and suboptimal solutions by violating the critical non-negativity constraint. We identify the gradient…

机器学习 · 计算机科学 2025-10-28 Hanzhang Wang , Zonglin Liu , Jingyi Xu , Chenyang Wang , Zhiwei Zhong , Qiangqiang Shen

Modern ultra-high-resolution image synthesis relies heavily on the robust generative capacity of large-scale pre-trained Latent Diffusion Models (LDMs). While recent representation alignment methods have proven effective by distilling…

计算机视觉与模式识别 · 计算机科学 2026-05-21 Jinjin Zhang , Xiefan Guo , Di Huang

Medical Vision-Language Models can give different yes or no answers to rephrasings of the same clinical question. We study this in MedGemma-4B using PSF-Med Sadanandan and Behzadan (2025), which provides paraphrase pairs for systematic…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Binesh Sadanandan , Vahid Behzadan

We study gradient inversion in the challenging single round averaged gradient SAG regime where per sample cues are entangled within a single batch mean gradient. We introduce MAGIA a momentum based adaptive correction on gradient inversion…

计算机视觉与模式识别 · 计算机科学 2025-09-24 Zhanting Zhou , Jinbo Wang , Zeqin Wu , Fengli Zhang

Despite the recent remarkable achievement in gaze estimation, efficient and accurate personalization of gaze estimation without labels is a practical problem but rarely touched on in the literature. To achieve efficient personalization, we…

计算机视觉与模式识别 · 计算机科学 2024-03-14 Huan Liu , Julia Qi , Zhenhao Li , Mohammad Hassanpour , Yang Wang , Konstantinos Plataniotis , Yuanhao Yu

Random projection is widely used as a method of dimension reduction. In recent years, its combination with standard techniques of regression and classification has been explored. Here we examine its use with principal component analysis…

统计方法学 · 统计学 2012-04-13 Qi Ding , Eric D. Kolaczyk

Projected priors were originally introduced to accommodate parameter constraints, but have recently regained popularity due to their ability to assign probability mass to low-dimensional parameter sets, such as the spaces of sparse vectors,…

统计方法学 · 统计学 2026-05-15 Leo L Duan , Sunghyun Cho , Mingzhang Yin

Recent advances in medical imaging techniques have led to significant improvements in the management of prostate cancer (PCa). In particular, multi-parametric MRI (mp-MRI) continues to gain clinical acceptance as the preferred imaging…

图像与视频处理 · 电气工程与系统科学 2019-10-08 Ruiming Cao , Xinran Zhong , Fabien Scalzo , Steven Raman , Kyung hyun Sung

Memorization in large-scale text-to-image diffusion models poses significant security and intellectual property risks, enabling adversarial attribute extraction and the unauthorized reproduction of sensitive or proprietary features. While…

机器学习 · 计算机科学 2026-01-28 Divya Kothandaraman , Jaclyn Pytlarz

Unsupervised domain adaptation (UDA) has achieved unprecedented success in improving the cross-domain robustness of object detection models. However, existing UDA methods largely ignore the instantaneous data distribution during model…

计算机视觉与模式识别 · 计算机科学 2020-03-24 Zongxian Li , Qixiang Ye , Chong Zhang , Jingjing Liu , Shijian Lu , Yonghong Tian

Motivated by cutting-edge applications like cryo-electron microscopy (cryo-EM), the Multi-Reference Alignment (MRA) model entails the learning of an unknown signal from repeated measurements of its images under the latent action of a group…

统计理论 · 数学 2022-03-11 Subhro Ghosh , Philippe Rigollet

Motivation : Molecular signatures for diagnosis or prognosis estimated from large-scale gene expression data often lack robustness and stability, rendering their biological interpretation challenging. Increasing the signature's…

机器学习 · 统计学 2010-01-19 Anne-Claire Haury , Laurent Jacob , Jean-Philippe Vert

AI-agent guardrails are memoryless: each message is judged in isolation, so an adversary who spreads a single attack across dozens of sessions slips past every session-bound detector because only the aggregate carries the payload. We make…

密码学与安全 · 计算机科学 2026-04-24 Ari Azarafrooz

Interpretability is crucial for machine learning in many scenarios such as quantitative finance, banking, healthcare, etc. Symbolic regression (SR) is a classic interpretable machine learning method by bridging X and Y using mathematical…

统计方法学 · 统计学 2020-01-17 Ying Jin , Weilin Fu , Jian Kang , Jiadong Guo , Jian Guo

In shotgun sequencing, the input string (typically, a long DNA sequence composed of nucleotide bases) is sequenced as multiple overlapping fragments of much shorter lengths (called \textit{reads}). Modelling the shotgun sequencing pipeline…

信息论 · 计算机科学 2024-05-14 Hrishi Narayanan , Prasad Krishnan , Nita Parekh

Pseudo-rehearsal allows neural networks to learn a sequence of tasks without forgetting how to perform in earlier tasks. Preventing forgetting is achieved by introducing a generative network which can produce data from previously seen tasks…

机器学习 · 计算机科学 2019-11-28 Craig Atkinson , Brendan McCane , Lech Szymanski , Anthony Robins

A new method to identify all sufficiently long repeating substrings in one or several symbol sequences is proposed. The method is based on a specific gauge applied to symbol sequences that guarantees identification of the repeating…

基因组学 · 定量生物学 2016-04-07 Sergey Tsarev , Michael Sadovsky

Evolutionary symbolic regression approaches are powerful tools that can approximate an explicit mapping between input features and observation for various problems. However, ensuring that explored expressions maintain consistency with…

最优化与控制 · 数学 2024-11-19 Maximilian Reissmann , Yuan Fang , Andrew Ooi , Richard Sandberg