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Since most scientific literature data are unlabeled, this makes unsupervised graph-based semantic representation learning crucial. Therefore, an unsupervised semantic representation learning method of scientific literature based on graph…

信息检索 · 计算机科学 2023-01-31 Hongrui Gao , Yawen Li , Meiyu Liang , Zeli Guan

The high rate of false alarms in intensive care units (ICUs) is one of the top challenges of using medical technology in hospitals. These false alarms are often caused by patients' movements, detachment of monitoring sensors, or different…

机器学习 · 计算机科学 2019-04-19 Behzad Ghazanfari , Fatemeh Afghah , Kayvan Najarian , Sajad Mousavi , Jonathan Gryak , James Todd

Gliomas are brain tumours with a high mortality rate. There are various grades and sub-types of this tumour, and the treatment procedure varies accordingly. Clinicians and oncologists diagnose and categorise these tumours based on visual…

图像与视频处理 · 电气工程与系统科学 2020-11-12 Azam Hamidinekoo , Tomasz Pieciak , Maryam Afzali , Otar Akanyeti , Yinyin Yuan

Brain tumors are among the deadliest diseases in the world. Magnetic Resonance Imaging (MRI) is one of the most effective ways to detect brain tumors. Accurate detection of brain tumors based on MRI scans is critical, as it can potentially…

计算机视觉与模式识别 · 计算机科学 2024-08-02 Xiaoyi Liu , Zhuoyue Wang

This study introduces a general semiparametric clusterwise index distribution model to analyze how latent clusters affect the covariate-response relationships. By employing sufficient dimension reduction to account for the effects of…

统计方法学 · 统计学 2025-09-30 Jen-Chieh Teng , Chin-Tsang Chiang

Graph-based semi-supervised learning has been shown to be one of the most effective approaches for classification tasks from a wide range of domains, such as image classification and text classification, as they can exploit the connectivity…

计算机视觉与模式识别 · 计算机科学 2020-04-09 Wanyu Lin , Zhaolin Gao , Baochun Li

Glioma, a prevalent and heterogeneous tumor originating from the glial cells, can be differentiated as Low Grade Glioma (LGG) and High Grade Glioma (HGG) according to World Health Organization's norms. Classifying gliomas is essential for…

计算机视觉与模式识别 · 计算机科学 2025-03-03 Kiranmayee Janardhan , Christy Bobby Thomas

Supervised learning of convolutional neural networks (CNNs) can require very large amounts of labeled data. Labeling thousands or millions of training examples can be extremely time consuming and costly. One direction towards addressing…

计算机视觉与模式识别 · 计算机科学 2017-07-27 Amir Ghaderi , Vassilis Athitsos

Recently, segmentation methods based on Convolutional Neural Networks (CNNs) showed promising performance in automatic Multiple Sclerosis (MS) lesions segmentation. These techniques have even outperformed human experts in controlled…

图像与视频处理 · 电气工程与系统科学 2021-07-26 Reda Abdellah Kamraoui , Vinh-Thong Ta , Thomas Tourdias , Boris Mansencal , José V Manjon , Pierrick Coupé

We propose a new method for Unsupervised clustering in particle physics named UCluster, where information in the embedding space created by a neural network is used to categorise collision events into different clusters that share similar…

数据分析、统计与概率 · 物理学 2021-06-01 Vinicius Mikuni , Florencia Canelli

Different types of training data have led to numerous schemes for supervised classification. Current learning techniques are tailored to one specific scheme and cannot handle general ensembles of training data. This paper presents a…

机器学习 · 统计学 2020-10-20 Santiago Mazuelas , Aritz Perez

Surgery planning in patients diagnosed with brain tumor is dependent on their survival prognosis. A poor prognosis might demand for a more aggressive treatment and therapy plan, while a favorable prognosis might enable a less risky surgery…

图像与视频处理 · 电气工程与系统科学 2020-09-08 Sobia Yousaf , Syed Muhammad Anwar , Harish RaviPrakash , Ulas Bagci

In this paper we develop a new unsupervised machine learning technique comprised of a feature extractor, a convolutional autoencoder (CAE), and a clustering algorithm consisting of a Bayesian Gaussian mixture model (BGM). We apply this…

天体物理仪器与方法 · 物理学 2020-04-15 Ting-Yun Cheng , Nan Li , Christopher J. Conselice , Alfonso Aragón-Salamanca , Simon Dye , Robert B. Metcalf

Deep part-based methods in recent literature have revealed the great potential of learning local part-level representation for pedestrian image in the task of person re-identification. However, global features that capture discriminative…

计算机视觉与模式识别 · 计算机科学 2019-04-02 Hui Li , Meng Yang , Zhihui Lai , Weishi Zheng , Zitong Yu

Scientific observations may consist of a large number of variables (features). Identifying a subset of meaningful features is often ignored in unsupervised learning, despite its potential for unraveling clear patterns hidden in the ambient…

机器学习 · 计算机科学 2020-11-10 Ofir Lindenbaum , Uri Shaham , Jonathan Svirsky , Erez Peterfreund , Yuval Kluger

The rapidly emerging field of computational pathology has the potential to enable objective diagnosis, therapeutic response prediction and identification of new morphological features of clinical relevance. However, deep learning-based…

图像与视频处理 · 电气工程与系统科学 2020-05-25 Ming Y. Lu , Drew F. K. Williamson , Tiffany Y. Chen , Richard J. Chen , Matteo Barbieri , Faisal Mahmood

The use of supervised deep learning techniques to detect pathologies in brain MRI scans can be challenging due to the diversity of brain anatomy and the need for annotated data sets. An alternative approach is to use unsupervised anomaly…

图像与视频处理 · 电气工程与系统科学 2023-03-08 Finn Behrendt , Debayan Bhattacharya , Julia Krüger , Roland Opfer , Alexander Schlaefer

Lesion detection in brain Magnetic Resonance Images (MRI) remains a challenging task. State-of-the-art approaches are mostly based on supervised learning making use of large annotated datasets. Human beings, on the other hand, even…

计算机视觉与模式识别 · 计算机科学 2018-06-14 Xiaoran Chen , Ender Konukoglu

The clinical integration of deep learning models for brain tumor diagnosis in neuro-oncology is severely constrained by limited expert-annotated MRI data and substantial inter-institutional domain shift arising from variations in scanners,…

计算机视觉与模式识别 · 计算机科学 2026-05-06 Sapna Sachan , Amulya Kumar Mahto , Prashant Wagambar Patil

This paper describes a new approach for learning structures of large Bayesian networks based on blocks resulting from feature space clustering. This clustering is obtained using normalized mutual information. And the subsequent aggregation…

机器学习 · 统计学 2022-08-30 Anna V. Bubnova