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Data limitation is one of the most common issues in training machine learning classifiers for medical applications. Due to ethical concerns and data privacy, the number of people that can be recruited to such experiments is generally…

音频与语音处理 · 电气工程与系统科学 2020-04-14 Bahman Mirheidari , Yilin Pan , Daniel Blackburn , Ronan O'Malley , Traci Walker , Annalena Venneri , Markus Reuber , Heidi Christensen

Medical image analysis suffers from a lack of labeled data due to several challenges including patient privacy and lack of experts. Although some AI models only perform well with large amounts of data, we will move to data augmentation…

图像与视频处理 · 电气工程与系统科学 2025-11-26 Khadija Rais , Mohamed Amroune , Mohamed Yassine Haouam , Abdelmadjid Benmachiche

Machine Learning (ML) has emerged as a promising approach in healthcare, outperforming traditional statistical techniques. However, to establish ML as a reliable tool in clinical practice, adherence to best practices regarding data…

图像与视频处理 · 电气工程与系统科学 2023-09-15 Rosanna Turrisi , Alessandro Verri , Annalisa Barla

The variational autoencoder (VAE) is a popular deep latent variable model used to analyse high-dimensional datasets by learning a low-dimensional latent representation of the data. It simultaneously learns a generative model and an…

机器学习 · 计算机科学 2023-11-21 Mine Öğretir , Siddharth Ramchandran , Dimitrios Papatheodorou , Harri Lähdesmäki

The variational autoencoder (VAE) is a popular, deep, latent-variable model (DLVM) due to its simple yet effective formulation for modeling the data distribution. Moreover, optimizing the VAE objective function is more manageable than other…

机器学习 · 计算机科学 2025-01-28 Surojit Saha , Sarang Joshi , Ross Whitaker

We introduce a fluid-based image augmentation method for medical image analysis. In contrast to existing methods, our framework generates anatomically meaningful images via interpolation from the geodesic subspace underlying given samples.…

计算机视觉与模式识别 · 计算机科学 2020-07-07 Zhengyang Shen , Zhenlin Xu , Sahin Olut , Marc Niethammer

In this study, a novel method of data augmentation has been presented for the segmentation of placental histological images when the labeled data are scarce. This method generates new realizations of the placenta intervillous morphology…

图像与视频处理 · 电气工程与系统科学 2022-10-10 Arash Rabbani , Masoud Babaei , Masoumeh Gharib

A variational autoencoder (VAE) is a probabilistic machine learning framework for posterior inference that projects an input set of high-dimensional data to a lower-dimensional, latent space. The latent space learned with a VAE offers…

机器学习 · 计算机科学 2022-11-16 Rafael Pastrana

Finding an interpretable non-redundant representation of real-world data is one of the key problems in Machine Learning. Biological neural networks are known to solve this problem quite well in unsupervised manner, yet unsupervised…

机器学习 · 计算机科学 2020-10-13 Denis Kuzminykh , Laida Kushnareva , Timofey Grigoryev , Alexander Zatolokin

Tensor-based representations are being increasingly used to represent complex data types such as imaging data, due to their appealing properties such as dimension reduction and the preservation of spatial information. Recently, there is a…

统计方法学 · 统计学 2023-12-15 Rongke Lyu , Marina Vannucci , Suprateek Kundu

This paper proposes a new high dimensional regression method by merging Gaussian process regression into a variational autoencoder framework. In contrast to other regression methods, the proposed method focuses on the case where output…

计算机视觉与模式识别 · 计算机科学 2019-08-13 YoungJoon Yoo , Sangdoo Yun , Hyung Jin Chang , Yiannis Demiris , Jin Young Choi

Recently, the introduction of the generative adversarial network (GAN) and its variants has enabled the generation of realistic synthetic samples, which has been used for enlarging training sets. Previous work primarily focused on data…

机器学习 · 计算机科学 2018-08-27 Swee Kiat Lim , Yi Loo , Ngoc-Trung Tran , Ngai-Man Cheung , Gemma Roig , Yuval Elovici

The high cost of acquiring labels is one of the main challenges in deploying supervised machine learning algorithms. Active learning is a promising approach to control the learning process and address the difficulties of data labeling by…

机器学习 · 计算机科学 2019-11-19 Farhad Pourkamali-Anaraki , Michael B. Wakin

Conventional data augmentation realized by performing simple pre-processing operations (\eg, rotation, crop, \etc) has been validated for its advantage in enhancing the performance for medical image segmentation. However, the data generated…

图像与视频处理 · 电气工程与系统科学 2020-02-25 Tiexin Qin , Ziyuan Wang , Kelei He , Yinghuan Shi , Yang Gao , Dinggang Shen

Automated data augmentation, which aims at engineering augmentation policy automatically, recently draw a growing research interest. Many previous auto-augmentation methods utilized a Density Matching strategy by evaluating policies in…

计算机视觉与模式识别 · 计算机科学 2022-07-22 Jianwei Zhang , Dong Li , Lituan Wang , Lei Zhang

Dementia is a growing problem as our society ages, and detection methods are often invasive and expensive. Recent deep-learning techniques can offer a faster diagnosis and have shown promising results. However, they require large amounts of…

计算与语言 · 计算机科学 2022-07-19 Anna Hlédiková , Dominika Woszczyk , Alican Akman , Soteris Demetriou , Björn Schuller

While data augmentation (DA) is generally applied to input data, several studies have reported that applying DA to hidden layers in neural networks, i.e., feature augmentation, can improve performance. However, in previous studies, the…

机器学习 · 计算机科学 2024-08-27 Tomoumi Takase , Ryo Karakida

Deep learning (DL) methods where interpretability is intrinsically considered as part of the model are required to better understand the relationship of clinical and imaging-based attributes with DL outcomes, thus facilitating their use in…

图像与视频处理 · 电气工程与系统科学 2022-12-13 Irem Cetin , Maialen Stephens , Oscar Camara , Miguel Angel Gonzalez Ballester

In this study, we introduce an innovative methodology aimed at enhancing Fisher's Linear Discriminant Analysis (LDA) in the context of high-dimensional data classification scenarios, specifically addressing situations where each feature…

应用统计 · 统计学 2024-01-18 Seungyeon Oh , Hoyoung Park

We develop Riemannian approaches to variational autoencoders (VAEs) for PDE-type ambient data with regularizing geometric latent dynamics, which we refer to as VAE-DLM, or VAEs with dynamical latent manifolds. We redevelop the VAE framework…

机器学习 · 计算机科学 2026-01-21 Andrew Gracyk