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相关论文: $\mathcal{G}$-softmax: Improving Intra-class Compa…

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Graph Neural Networks (GNNs) are powerful deep learning models designed for graph-structured data, demonstrating effectiveness across a wide range of applications.The softmax function is the most commonly used classifier for semi-supervised…

机器学习 · 计算机科学 2024-09-23 Yiming Yang , Jun Liu , Wei Wan

Imbalance in classification tasks is commonly quantified by the cardinalities of examples across classes. This, however, disregards the presence of redundant examples and inherent differences in the learning difficulties of classes.…

机器学习 · 计算机科学 2026-01-22 Çağrı Eser , Zeynep Sonat Baltacı , Emre Akbaş , Sinan Kalkan

In machine learning, classifiers are typically susceptible to noise in the training data. In this work, we aim at reducing intra-class noise with the help of graph filtering to improve the classification performance. Considered graphs are…

In this paper, we propose a new deep neural network classifier that simultaneously maximizes the inter-class separation and minimizes the intra-class variation by using the polyhedral conic classification function. The proposed method has…

计算机视觉与模式识别 · 计算机科学 2021-02-26 Hakan Cevikalp , Bedirhan Uzun , Okan Köpüklü , Gurkan Ozturk

General change detection (GCD) and semantic change detection (SCD) are common methods for identifying changes and distinguishing object categories involved in those changes, respectively. However, the binary changes provided by GCD is often…

计算机视觉与模式识别 · 计算机科学 2023-03-09 Yuqun Yang , Xu Tang , Xiangrong Zhang , Jingjing Ma , Licheng Jiao

Normalization is a vital process for any machine learning task as it controls the properties of data and affects model performance at large. The impact of particular forms of normalization, however, has so far been investigated in limited…

机器学习 · 计算机科学 2022-06-22 Chintan Trivedi , Konstantinos Makantasis , Antonios Liapis , Georgios N. Yannakakis

The critical challenge of Semi-Supervised Learning (SSL) is how to effectively leverage the limited labeled data and massive unlabeled data to improve the model's generalization performance. In this paper, we first revisit the popular…

机器学习 · 计算机科学 2023-03-16 Hao Chen , Ran Tao , Yue Fan , Yidong Wang , Jindong Wang , Bernt Schiele , Xing Xie , Bhiksha Raj , Marios Savvides

Adversarial robustness is essential for deploying neural networks in safety-critical applications, yet standard evaluation methods either require expensive adversarial attacks or report only a single aggregate score that obscures how…

机器学习 · 计算机科学 2026-04-15 Arya Shah , Kaveri Visavadiya , Manisha Padala

Fine-grained visual recognition aims to capture discriminative characteristics amongst visually similar categories. The state-of-the-art research work has significantly improved the fine-grained recognition performance by deep metric…

计算机视觉与模式识别 · 计算机科学 2017-03-02 Yan Bai , Feng Gao , Yihang Lou , Shiqi Wang , Tiejun Huang , Ling-Yu Duan

Deep convolutional neural networks (CNNs) trained with logistic and softmax losses have made significant advancement in visual recognition tasks in computer vision. When training data exhibit class imbalances, the class-wise reweighted…

机器学习 · 计算机科学 2020-03-06 Xiangrui Li , Xin Li , Deng Pan , Dongxiao Zhu

Though Convolutional Neural Networks (CNNs) have surpassed human-level performance on tasks such as object classification and face verification, they can easily be fooled by adversarial attacks. These attacks add a small perturbation to the…

机器学习 · 计算机科学 2018-03-26 Rajeev Ranjan , Swami Sankaranarayanan , Carlos D. Castillo , Rama Chellappa

Spoken language understanding (SLU) datasets, like many other machine learning datasets, usually suffer from the label imbalance problem. Label imbalance usually causes the learned model to replicate similar biases at the output which…

音频与语音处理 · 电气工程与系统科学 2020-08-11 Leda Sarı , Mark Hasegawa-Johnson

Generalizing to novel classes unseen during training is a key challenge of few-shot classification. Recent metric-based methods try to address this by local representations. However, they are unable to take full advantage of them due to (i)…

计算机视觉与模式识别 · 计算机科学 2026-04-02 Shi Tang , Guiming Luo , Xinchen Ye , Zhiyi Xia

Top-K sparse softmax gating mixture of experts has been widely used for scaling up massive deep-learning architectures without increasing the computational cost. Despite its popularity in real-world applications, the theoretical…

机器学习 · 统计学 2024-02-27 Huy Nguyen , Pedram Akbarian , Fanqi Yan , Nhat Ho

As hashing becomes an increasingly appealing technique for large-scale image retrieval, multi-label hashing is also attracting more attention for the ability to exploit multi-level semantic contents. In this paper, we propose a novel deep…

计算机视觉与模式识别 · 计算机科学 2021-02-03 Cheng Ma , Jiwen Lu , Jie Zhou

Large-scale datasets may contain significant proportions of noisy (incorrect) class labels, and it is well-known that modern deep neural networks (DNNs) poorly generalize from such noisy training datasets. To mitigate the issue, we propose…

机器学习 · 统计学 2019-05-15 Kimin Lee , Sukmin Yun , Kibok Lee , Honglak Lee , Bo Li , Jinwoo Shin

Deep neural network-based medical image classifications often use "hard" labels for training, where the probability of the correct category is 1 and those of others are 0. However, these hard targets can drive the networks over-confident…

计算机视觉与模式识别 · 计算机科学 2020-07-14 Dong Wei , Shilei Cao , Kai Ma , Yefeng Zheng

Most of unsupervised person Re-Identification (Re-ID) works produce pseudo-labels by measuring the feature similarity without considering the distribution discrepancy among cameras, leading to degraded accuracy in label computation across…

计算机视觉与模式识别 · 计算机科学 2021-03-23 Shiyu Xuan , Shiliang Zhang

Many real-world classification problems, such as plant identification, have extremely long-tailed class distributions. In order for prediction sets to be useful in such settings, they should (i) provide good class-conditional coverage,…

机器学习 · 统计学 2026-03-02 Tiffany Ding , Jean-Baptiste Fermanian , Joseph Salmon

Aiming to enhance the utilization of metric space by the parametric softmax classifier, recent studies suggest replacing it with a non-parametric alternative. Although a non-parametric classifier may provide better metric space utilization,…

计算机视觉与模式识别 · 计算机科学 2024-03-26 Mohammad Saeed Ebrahimi Saadabadi , Ali Dabouei , Sahar Rahimi Malakshan , Nasser M. Nasrabad