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The margin-based softmax loss functions greatly enhance intra-class compactness and perform well on the tasks of face recognition and object classification. Outperformance, however, depends on the careful hyperparameter selection. Moreover,…

计算机视觉与模式识别 · 计算机科学 2019-12-18 JT Wu , L. Wang

The support vector machines (SVM) is a powerful classifier used for binary classification to improve the prediction accuracy. However, the non-differentiability of the SVM hinge loss function can lead to computational difficulties in high…

机器学习 · 统计学 2023-03-17 Rachid Kharoubi , Abdallah Mkhadri , Karim Oualkacha

The past decade has witnessed significant progress on detecting objects in aerial images that are often distributed with large scale variations and arbitrary orientations. However most of existing methods rely on heuristically defined…

计算机视觉与模式识别 · 计算机科学 2021-07-13 Jiaming Han , Jian Ding , Jie Li , Gui-Song Xia

We present a powerful new loss function and training scheme for learning binary hash codes with any differentiable model and similarity function. Our loss function improves over prior methods by using log likelihood loss on top of an…

机器学习 · 计算机科学 2018-10-03 Martin Loncaric , Bowei Liu , Ryan Weber

Deep neural networks have recently advanced the state-of-the-art in image compression and surpassed many traditional compression algorithms. The training of such networks involves carefully trading off entropy of the latent representation…

图像与视频处理 · 电气工程与系统科学 2020-11-03 Maurice Weber , Cedric Renggli , Helmut Grabner , Ce Zhang

Despite outstanding semantic scene segmentation in closed-worlds, deep neural networks segment novel instances poorly, which is required for autonomous agents acting in an open world. To improve out-of-distribution (OOD) detection for…

计算机视觉与模式识别 · 计算机科学 2023-11-15 Meghna Gummadi , Cassandra Kent , Karl Schmeckpeper , Eric Eaton

Most classification models can be considered as the process of matching templates. However, when intra-class uncertainty/variability is not considered, especially for datasets containing unbalanced classes, this may lead to classification…

计算机视觉与模式识别 · 计算机科学 2021-04-13 He Zhu , Shan Yu

Unsupervised monocular depth learning generally relies on the photometric relation among temporally adjacent images. Most of previous works use both mean absolute error (MAE) and structure similarity index measure (SSIM) with conventional…

计算机视觉与模式识别 · 计算机科学 2025-06-06 Yijun Cao , Fuya Luo , Yongjie Li

Foundational models, trained on vast and diverse datasets, have demonstrated remarkable capabilities in generalizing across different domains and distributions for various zero-shot tasks. Our work addresses the challenge of retaining these…

计算机视觉与模式识别 · 计算机科学 2024-09-13 Tom Shaked , Yuval Goldman , Oran Shayer

One Class Slab Support Vector Machines (OCSSVM) have turned out to be better in terms of accuracy in certain classes of classification problems than the traditional SVMs and One Class SVMs or even other One class classifiers. This paper…

机器学习 · 计算机科学 2024-09-05 Bagesh Kumar , Ayush Sinha , Sourin Chakrabarti , O. P. Vyas

Out-of-Distribution (OOD) detection is a cornerstone for the safe deployment of AI systems in the open world. However, existing methods treat OOD detection as a binary classification problem, a cognitive flattening that fails to distinguish…

机器学习 · 统计学 2025-10-16 Ningkang Peng , Yuzhe Mao , Yuhao Zhang , Linjin Qian , Qianfeng Yu , Yanhui Gu , Yi Chen , Li Kong

Open-Vocabulary Segmentation (OVS) aims to segment image regions beyond predefined category sets by leveraging semantic descriptions. While CLIP based approaches excel in semantic generalization, they frequently lack the fine-grained…

计算机视觉与模式识别 · 计算机科学 2026-04-10 Haoxi Zeng , Qiankun Liu , Yi Bin , Haiyue Zhang , Yujuan Ding , Guoqing Wang , Deqiang Ouyang , Heng Tao Shen

The accuracy of information retrieval systems is often measured using complex loss functions such as the average precision (AP) or the normalized discounted cumulative gain (NDCG). Given a set of positive and negative samples, the…

计算机视觉与模式识别 · 计算机科学 2018-03-01 Pritish Mohapatra , Michal Rolinek , C. V. Jawahar , Vladimir Kolmogorov , M. Pawan Kumar

Widely used loss functions for CNN segmentation, e.g., Dice or cross-entropy, are based on integrals over the segmentation regions. Unfortunately, for highly unbalanced segmentations, such regional summations have values that differ by…

图像与视频处理 · 电气工程与系统科学 2020-10-20 Hoel Kervadec , Jihene Bouchtiba , Christian Desrosiers , Eric Granger , Jose Dolz , Ismail Ben Ayed

Training deep neural networks is a highly nontrivial task, involving carefully selecting appropriate training algorithms, scheduling step sizes and tuning other hyperparameters. Trying different combinations can be quite labor-intensive and…

机器学习 · 计算机科学 2017-06-13 Kaifeng Lv , Shunhua Jiang , Jian Li

We investigate an extension of classical empirical risk minimization, where the hypothesis space consists of a random subspace within a given Hilbert space. Specifically, we examine the Nystr\"om method where the subspaces are defined by a…

机器学习 · 统计学 2025-03-18 Andrea Della Vecchia , Ernesto De Vito , Jaouad Mourtada , Lorenzo Rosasco

Out-of-distribution (OoD) detection is a natural downstream task for deep generative models, due to their ability to learn the input probability distribution. There are mainly two classes of approaches for OoD detection using deep…

机器学习 · 计算机科学 2019-07-11 Yujia Huang , Sihui Dai , Tan Nguyen , Richard G. Baraniuk , Anima Anandkumar

When applying deep learning models in open-world scenarios, active learning (AL) strategies are crucial for identifying label candidates from a nearly infinite amount of unlabeled data. In this context, robust out-of-distribution (OOD)…

计算机视觉与模式识别 · 计算机科学 2025-10-14 Sebastian Schmidt , Leonard Schenk , Leo Schwinn , Stephan Günnemann

We present our novel deep multi-task learning method for medical image segmentation. Existing multi-task methods demand ground truth annotations for both the primary and auxiliary tasks. Contrary to it, we propose to generate the…

图像与视频处理 · 电气工程与系统科学 2022-04-06 Binod Bhattarai , Ronast Subedi , Rebati Raman Gaire , Eduard Vazquez , Danail Stoyanov

Purpose: To develop a deep learning approach to digitally-stain optical coherence tomography (OCT) images of the optic nerve head (ONH). Methods: A horizontal B-scan was acquired through the center of the ONH using OCT (Spectralis) for 1…