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Offline handwritten signature verification remains a challenging task, particularly in writer-independent settings where models must generalize across unseen individuals. Recent developments have highlighted the advantage of geometrically…

计算机视觉与模式识别 · 计算机科学 2025-09-26 Elias N. Zois , Moises Diaz , Salem Said , Miguel A. Ferrer

Contrastive learning (CL), a self-supervised learning approach, can effectively learn visual representations from unlabeled data. Given the CL training data, generative models can be trained to generate synthetic data to supplement the real…

计算机视觉与模式识别 · 计算机科学 2022-11-29 Yawen Wu , Zhepeng Wang , Dewen Zeng , Yiyu Shi , Jingtong Hu

Inspired by the principle of deliberate practice in human learning, we propose Deliberate Practice for Synthetic Data Generation (DP), a novel framework that improves sample efficiency through dynamic synthetic data generation. Prior work…

Synthetic data generation, a cornerstone of Generative Artificial Intelligence, promotes a paradigm shift in data science by addressing data scarcity and privacy while enabling unprecedented performance. As synthetic data becomes more…

机器学习 · 统计学 2024-03-12 Xiaotong Shen , Yifei Liu , Rex Shen

This work provides a solution to the challenge of small amounts of training data in Non-Destructive Ultrasonic Testing for composite components. It was demonstrated that direct simulation alone is ineffective at producing training data that…

图像与视频处理 · 电气工程与系统科学 2023-11-06 Shaun McKnight , S. Gareth Pierce , Ehsan Mohseni , Christopher MacKinnon , Charles MacLeod , Tom OHare , Charalampos Loukas

Access to individual-level health data is essential for gaining new insights and advancing science. In particular, modern methods based on artificial intelligence rely on the availability of and access to large datasets. In the health…

The goal of program synthesis is to automatically generate programs in a particular language from corresponding specifications, e.g. input-output behavior. Many current approaches achieve impressive results after training on randomly…

机器学习 · 计算机科学 2020-01-01 Richard Shin , Neel Kant , Kavi Gupta , Christopher Bender , Brandon Trabucco , Rishabh Singh , Dawn Song

In general, to draw robust conclusions from a dataset, all the analyzed population must be represented on said dataset. Having a dataset that does not fulfill this condition normally leads to selection bias. Additionally, graphs have been…

机器学习 · 计算机科学 2022-05-30 Axel Wassington , Sergi Abadal

Formal methods apply algorithms based on mathematical principles to enhance the reliability of systems. It would only be natural to try to progress from verification, model checking or testing a system against its formal specification into…

软件工程 · 计算机科学 2014-02-28 Gal Katz , Doron Peled

Currently, the Morpho-Constitutional Analysis (MCA) is the de facto approach for the etiological diagnosis of kidney stone formation, and it is an important step for establishing personalized treatment to avoid relapses. More recently,…

Devising procedures for downstream task-oriented generative model selections is an unresolved problem of practical importance. Existing studies focused on the utility of a single family of generative models. They provided limited insights…

机器学习 · 计算机科学 2024-01-03 Yinan Cheng , Chi-Hua Wang , Vamsi K. Potluru , Tucker Balch , Guang Cheng

Kernel density estimation is a widely used nonparametric approach to estimate an unknown distribution. Recent work in Bayesian predictive inference has considered stochastic processes formed by specifying the predictive distribution for the…

统计方法学 · 统计学 2026-05-15 Torey Hilbert

The availability of genomic data is essential to progress in biomedical research, personalized medicine, etc. However, its extreme sensitivity makes it problematic, if not outright impossible, to publish or share it. As a result, several…

基因组学 · 定量生物学 2022-01-19 Bristena Oprisanu , Georgi Ganev , Emiliano De Cristofaro

Synthetic data serves as an alternative in training machine learning models, particularly when real-world data is limited or inaccessible. However, ensuring that synthetic data mirrors the complex nuances of real-world data is a challenging…

机器学习 · 计算机科学 2023-10-27 Lasse Hansen , Nabeel Seedat , Mihaela van der Schaar , Andrija Petrovic

Synthetic images rendered by graphics engines are a promising source for training deep networks. However, it is challenging to ensure that they can help train a network to perform well on real images, because a graphics-based generation…

计算机视觉与模式识别 · 计算机科学 2020-04-28 Dawei Yang , Jia Deng

Stein kernel has recently shown promising performance on classifying images represented by symmetric positive definite (SPD) matrices. It evaluates the similarity between two SPD matrices through their eigenvalues. In this paper, we argue…

计算机视觉与模式识别 · 计算机科学 2015-05-19 Jianjia Zhang , Lei Wang , Luping Zhou , Wanqing Li

Diffusion models have achieved remarkable success in generating high-resolution, realistic images across diverse natural distributions. However, their performance heavily relies on high-quality training data, making it challenging to learn…

机器学习 · 计算机科学 2025-05-22 Tianyu Chen , Yasi Zhang , Zhendong Wang , Ying Nian Wu , Oscar Leong , Mingyuan Zhou

Large Language Models (LLMs) have democratized synthetic data generation, which in turn has the potential to simplify and broaden a wide gamut of NLP tasks. Here, we tackle a pervasive problem in synthetic data generation: its generative…

计算与语言 · 计算机科学 2023-05-25 Veniamin Veselovsky , Manoel Horta Ribeiro , Akhil Arora , Martin Josifoski , Ashton Anderson , Robert West

Electrocardiogram (ECG) datasets tend to be highly imbalanced due to the scarcity of abnormal cases. Additionally, the use of real patients' ECGs is highly regulated due to privacy issues. Therefore, there is always a need for more ECG…

机器学习 · 计算机科学 2022-08-25 Edmond Adib , Fatemeh Afghah , John J. Prevost

We address the problem of non-parametric multiple model comparison: given $l$ candidate models, decide whether each candidate is as good as the best one(s) or worse than it. We propose two statistical tests, each controlling a different…

机器学习 · 计算机科学 2019-10-29 Jen Ning Lim , Makoto Yamada , Bernhard Schölkopf , Wittawat Jitkrittum