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Multimodal deep learning methods capture synergistic features from multiple modalities and have the potential to improve accuracy for stress detection compared to unimodal methods. However, this accuracy gain typically comes from high…

计算机视觉与模式识别 · 计算机科学 2024-03-14 Morteza Bodaghi , Majid Hosseini , Raju Gottumukkala

Convolutional Neural Network (CNN) have been widely used in image classification. Over the years, they have also benefited from various enhancements and they are now considered as state of the art techniques for image like data. However,…

计算机视觉与模式识别 · 计算机科学 2022-06-06 Thomas Gonzalez , Antoine Blais , Nicolas Couëllan , Christian Ruiz

Deep-learning has proved in recent years to be a powerful tool for image analysis and is now widely used to segment both 2D and 3D medical images. Deep-learning segmentation frameworks rely not only on the choice of network architecture but…

计算机视觉与模式识别 · 计算机科学 2017-09-19 Carole H Sudre , Wenqi Li , Tom Vercauteren , Sébastien Ourselin , M. Jorge Cardoso

We present a novel hierarchical triplet loss (HTL) capable of automatically collecting informative training samples (triplets) via a defined hierarchical tree that encodes global context information. This allows us to cope with the main…

计算机视觉与模式识别 · 计算机科学 2018-10-17 Weifeng Ge , Weilin Huang , Dengke Dong , Matthew R. Scott

Despite the deep neural networks (DNN) has achieved excellent performance in image classification researches, the training of DNNs needs a large of clean data with accurate annotations. The collect of a dataset is easy, but it is difficult…

计算机视觉与模式识别 · 计算机科学 2019-08-19 Qian Zhang , Feifei Lee , Ya-Gang Wang , Qiu Chen

This paper investigates the deep learning optimization problem with softmax cross-entropy loss. We propose a layer separation strategy to alleviate the strong nonconvexity encountered during training deep networks. For cross-entropy models…

机器学习 · 计算机科学 2026-04-28 Yaru Liu , Michael K. Ng , Yiqi Gu

The top-k error is a common measure of performance in machine learning and computer vision. In practice, top-k classification is typically performed with deep neural networks trained with the cross-entropy loss. Theoretical results indeed…

机器学习 · 计算机科学 2018-02-22 Leonard Berrada , Andrew Zisserman , M. Pawan Kumar

Loss functions are at the heart of deep learning, shaping how models learn and perform across diverse tasks. They are used to quantify the difference between predicted outputs and ground truth labels, guiding the optimization process to…

Traditional deep learning methods in medical imaging often focus solely on segmentation or classification, limiting their ability to leverage shared information. Multi-task learning (MTL) addresses this by combining both tasks through…

图像与视频处理 · 电气工程与系统科学 2024-12-03 Phuoc-Nguyen Bui , Duc-Tai Le , Junghyun Bum , Hyunseung Choo

While most successful approaches for machine reading comprehension rely on single training objective, it is assumed that the encoder layer can learn great representation through the loss function we define in the predict layer, which is…

计算与语言 · 计算机科学 2022-11-18 Yifeng Xie

The mining and utilization of features directly affect the classification performance of models used in the classification and recognition of hyperspectral remote sensing images. Traditional models usually conduct feature mining from a…

计算机视觉与模式识别 · 计算机科学 2021-06-29 Yunsong Zhao , Yin Li , Zhihan Chen , Tianchong Qiu , Guojin Liu

This paper presents a deep relational metric learning (DRML) framework for image clustering and retrieval. Most existing deep metric learning methods learn an embedding space with a general objective of increasing interclass distances and…

计算机视觉与模式识别 · 计算机科学 2021-08-24 Wenzhao Zheng , Borui Zhang , Jiwen Lu , Jie Zhou

Language-supervised vision models have recently attracted great attention in computer vision. A common approach to build such models is to use contrastive learning on paired data across the two modalities, as exemplified by Contrastive…

机器学习 · 计算机科学 2023-03-16 Ryumei Nakada , Halil Ibrahim Gulluk , Zhun Deng , Wenlong Ji , James Zou , Linjun Zhang

Deep Neural Networks are often brittle on image classification tasks and known to misclassify inputs. While these misclassifications may be inevitable, all failure modes cannot be considered equal. Certain misclassifications (eg.…

机器学习 · 计算机科学 2021-11-03 Alberto Olmo , Sailik Sengupta , Subbarao Kambhampati

Due to their flexibility and predictive performance, machine-learning based regression methods have become an important tool for predictive modeling and forecasting. However, most methods focus on estimating the conditional mean or specific…

机器学习 · 统计学 2019-03-15 Rui Li , Howard D. Bondell , Brian J. Reich

This work investigates three methods for calculating loss for autoencoder-based pretraining of image encoders: The commonly used reconstruction loss, the more recently introduced deep perceptual similarity loss, and a feature prediction…

计算机视觉与模式识别 · 计算机科学 2021-05-19 Gustav Grund Pihlgren , Fredrik Sandin , Marcus Liwicki

To enhance the reproducibility and reliability of deep learning models, we address a critical gap in current training methodologies: the lack of mechanisms that ensure consistent and robust performance across runs. Our empirical analysis…

机器学习 · 计算机科学 2026-01-05 Waqas Ahmed , Sheeba Samuel , Kevin Coakley , Birgitta Koenig-Ries , Odd Erik Gundersen

The modern image search system requires semantic understanding of image, and a key yet under-addressed problem is to learn a good metric for measuring the similarity between images. While deep metric learning has yielded impressive…

计算机视觉与模式识别 · 计算机科学 2017-08-08 Jian Wang , Feng Zhou , Shilei Wen , Xiao Liu , Yuanqing Lin

Because hyperspectral remote sensing images contain a lot of redundant information and the data structure is highly non-linear, leading to low classification accuracy of traditional machine learning methods. The latest research shows that…

计算机视觉与模式识别 · 计算机科学 2020-05-13 Xiangdong Zhang , Tengjun Wang , Yun Yang

Class imbalance is a common problem in the case of real-world object detection and classification tasks. Data of some classes is abundant making them an over-represented majority, and data of other classes is scarce, making them an…

计算机视觉与模式识别 · 计算机科学 2017-03-24 Salman H. Khan , Munawar Hayat , Mohammed Bennamoun , Ferdous Sohel , Roberto Togneri