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Recent advances in whole-slide image (WSI) scanners and computational capabilities have significantly propelled the application of artificial intelligence in histopathology slide analysis. While these strides are promising, current…

Computer Vision and Pattern Recognition · Computer Science 2023-11-15 Weiyi Wu , Chongyang Gao , Joseph DiPalma , Soroush Vosoughi , Saeed Hassanpour

In this paper, we address domain shifts in pathological images by focusing on shifts within whole slide images~(WSIs), such as patient characteristics and tissue thickness, rather than shifts between hospitals. Traditional approaches rely…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Yuki Shigeyasu , Shota Harada , Akihiko Yoshizawa , Kazuhiro Terada , Naoki Nakazima , Mariyo Kurata , Hiroyuki Abe , Tetsuo Ushiku , Ryoma Bise

The lack of well-annotated datasets in computational pathology (CPath) obstructs the application of deep learning techniques for classifying medical images. %Since pathologist time is expensive, dataset curation is intrinsically difficult.…

Image and Video Processing · Electrical Eng. & Systems 2022-01-28 Ryan Zhang , Jiadai Zhu , Stephen Yang , Mahdi S. Hosseini , Angelo Genovese , Lina Chen , Corwyn Rowsell , Savvas Damaskinos , Sonal Varma , Konstantinos N. Plataniotis

This paper addresses the domain shift problem for segmentation. As a solution, we propose OLVA, a novel and lightweight unsupervised domain adaptation method based on a Variational Auto-Encoder (VAE) and Optimal Transport (OT) theory.…

Machine Learning · Computer Science 2021-06-16 Dawood Al Chanti , Diana Mateus

The analysis of the tumor environment on digital histopathology slides is becoming key for the understanding of the immune response against cancer, supporting the development of novel immuno-therapies. We introduce here a novel deep…

Image and Video Processing · Electrical Eng. & Systems 2019-06-27 Ansh Kapil , Tobias Wiestler , Simon Lanzmich , Abraham Silva , Keith Steele , Marlon Rebelatto , Guenter Schmidt , Nicolas Brieu

Domain Adaptation is a technique to address the lack of massive amounts of labeled data in unseen environments. Unsupervised domain adaptation is proposed to adapt a model to new modalities using solely labeled source data and unlabeled…

Computer Vision and Pattern Recognition · Computer Science 2021-11-19 Thong Vo , Naimul Khan

The study of histopathological subtypes is valuable for the personalisation of effective treatment strategies for ovarian cancer. However, increasing diagnostic workloads present a challenge for UK pathology departments, leading to the rise…

Computer Vision and Pattern Recognition · Computer Science 2026-02-18 Marcus Jenkins , Jasenka Mazibrada , Bogdan Leahu , Michal Mackiewicz

The success of deep learning has set new benchmarks for many medical image analysis tasks. However, deep models often fail to generalize in the presence of distribution shifts between training (source) data and test (target) data. One…

Image and Video Processing · Electrical Eng. & Systems 2022-06-28 Dwarikanath Mahapatra

Predicting drug response in patients from preclinical data remains a major challenge in precision oncology due to the substantial biological gap between in vitro cell lines and patient tumors. Rather than aiming to improve absolute in vitro…

Machine Learning · Computer Science 2026-03-18 Camille Jimenez Cortes , Philippe Lalanda , German Vega

In this paper, we propose a new feature selection method for unsupervised domain adaptation based on the emerging optimal transportation theory. We build upon a recent theoretical analysis of optimal transport in domain adaptation and show…

Machine Learning · Computer Science 2018-06-29 Léo Gautheron , Ievgen Redko , Carole Lartizien

Histopathological images are essential for medical diagnosis and treatment planning, but interpreting them accurately using machine learning can be challenging due to variations in tissue preparation, staining and imaging protocols. Domain…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Vaibhav Khamankar , Sutanu Bera , Saumik Bhattacharya , Debashis Sen , Prabir Kumar Biswas

Multiple instance learning (MIL) has emerged as a popular method for classifying histopathology whole slide images (WSIs). However, existing approaches typically rely on pre-trained models from large natural image datasets, such as…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Yi Lin , Zhongchen Zhao , Zhengjie ZHU , Lisheng Wang , Kwang-Ting Cheng , Hao Chen

Deep learning models tend to underperform in the presence of domain shifts. Domain transfer has recently emerged as a promising approach wherein images exhibiting a domain shift are transformed into other domains for augmentation or…

Image and Video Processing · Electrical Eng. & Systems 2022-10-27 Weinan Song , Gaurav Fotedar , Nima Tajbakhsh , Ziheng Zhou , Lei He , Xiaowei Ding

We propose an exhaustive methodology that leverages all levels of feature abstraction, targeting an enhancement in the generalizability of image classification to unobserved hospitals. Our approach incorporates augmentation-based…

Computer Vision and Pattern Recognition · Computer Science 2023-08-10 Milad Sikaroudi , Maryam Hosseini , Shahryar Rahnamayan , H. R. Tizhoosh

Histopathological image analysis is an essential process for the discovery of diseases such as cancer. However, it is challenging to train CNN on whole slide images (WSIs) of gigapixel resolution considering the available memory capacity.…

Image and Video Processing · Electrical Eng. & Systems 2019-10-11 Shusuke Takahama , Yusuke Kurose , Yusuke Mukuta , Hiroyuki Abe , Masashi Fukayama , Akihiko Yoshizawa , Masanobu Kitagawa , Tatsuya Harada

Domain shift, the mismatch between training and testing data characteristics, causes significant degradation in the predictive performance in multi-source imaging scenarios. In medical imaging, the heterogeneity of population, scanners and…

Machine Learning · Computer Science 2021-12-21 Rongguang Wang , Pratik Chaudhari , Christos Davatzikos

Supervised deep learning models often achieve excellent performance within their training distribution but struggle to generalize beyond it. In cancer histopathology, for example, a convolutional neural network (CNN) may classify cancer…

Computer Vision and Pattern Recognition · Computer Science 2026-01-22 Justin Cheung , Samuel Savine , Calvin Nguyen , Lin Lu , Alhassan S. Yasin

Digitized pathological diagnosis has been in increasing demand recently. It is well known that color information is critical to the automatic and visual analysis of pathological slides. However, the color variations due to various factors…

Image and Video Processing · Electrical Eng. & Systems 2024-02-13 Shaojin Cai , Yuyang Xue3 Qinquan Gao , Min Du , Gang Chen , Hejun Zhang , Tong Tong

Systematics contaminate observables, leading to distribution shifts relative to theoretically simulated signals-posing a major challenge for using pre-trained models to label such observables. Since systematics are often poorly understood…

Instrumentation and Methods for Astrophysics · Physics 2025-11-18 Sultan Hassan , Sambatra Andrianomena , Benjamin D. Wandelt

Machine learning systems operate under the assumption that training and test data are sampled from a fixed probability distribution. However, this assumptions is rarely verified in practice, as the conditions upon which data was acquired…

Machine Learning · Computer Science 2025-07-09 Eduardo Fernandes Montesuma , Fred Maurice Ngolè Mboula , Antoine Souloumiac