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In this study, we systematically investigate the impact of class imbalance on classification performance of convolutional neural networks (CNNs) and compare frequently used methods to address the issue. Class imbalance is a common problem…

计算机视觉与模式识别 · 计算机科学 2018-10-16 Mateusz Buda , Atsuto Maki , Maciej A. Mazurowski

We present a novel Convolutional Neural Network (CNN) based approach for one class classification. The idea is to use a zero centered Gaussian noise in the latent space as the pseudo-negative class and train the network using the…

计算机视觉与模式识别 · 计算机科学 2019-01-28 Poojan Oza , Vishal M. Patel

High quality object proposals are crucial in visual tracking algorithms that utilize region proposal network (RPN). Refinement of these proposals, typically by box regression and classification in parallel, has been popularly adopted to…

计算机视觉与模式识别 · 计算机科学 2020-11-26 Heng Fan , Haibin Ling

We introduce a convolutional recurrent neural network (CRNN) for music tagging. CRNNs take advantage of convolutional neural networks (CNNs) for local feature extraction and recurrent neural networks for temporal summarisation of the…

神经与进化计算 · 计算机科学 2016-12-22 Keunwoo Choi , George Fazekas , Mark Sandler , Kyunghyun Cho

Text classification has been one of the major problems in natural language processing. With the advent of deep learning, convolutional neural network (CNN) has been a popular solution to this task. However, CNNs which were first proposed…

计算与语言 · 计算机科学 2019-09-16 Avinash Madasu , Vijjini Anvesh Rao

Contrastive learning (CL) methods effectively learn data representations in a self-supervision manner, where the encoder contrasts each positive sample over multiple negative samples via a one-vs-many softmax cross-entropy loss. By…

We develop a representation suitable for the unconstrained recognition of words in natural images: the general case of no fixed lexicon and unknown length. To this end we propose a convolutional neural network (CNN) based architecture which…

计算机视觉与模式识别 · 计算机科学 2015-04-13 Max Jaderberg , Karen Simonyan , Andrea Vedaldi , Andrew Zisserman

Convolutional neural networks (CNNs) have achieved significant success in image classification by utilizing large-scale datasets. However, it is still of great challenge to learn from scratch on small-scale datasets efficiently and…

计算机视觉与模式识别 · 计算机科学 2022-06-14 Yilu Guo , Shicai Yang , Weijie Chen , Liang Ma , Di Xie , Shiliang Pu

Sparse Representation (or coding) based Classification (SRC) has gained great success in face recognition in recent years. However, SRC emphasizes the sparsity too much and overlooks the correlation information which has been demonstrated…

计算机视觉与模式识别 · 计算机科学 2014-05-05 Jing Wang , Canyi Lu , Meng Wang , Peipei Li , Shuicheng Yan , Xuegang Hu

Regression via classification (RvC) is a common method used for regression problems in deep learning, where the target variable belongs to a set of continuous values. By discretizing the target into a set of non-overlapping classes, it has…

机器学习 · 计算机科学 2022-04-11 Axel Berg , Magnus Oskarsson , Mark O'Connor

Restricted kernel machines (RKMs) have demonstrated a significant impact in enhancing generalization ability in the field of machine learning. Recent studies have introduced various methods within the RKM framework, combining kernel…

机器学习 · 计算机科学 2025-02-18 A. Quadir , M. Sajid , M. Tanveer

Reward modeling is essential for aligning Large Language Models(LLMs) with human preferences, yet conventional reward models suffer from poor interpretability and heavy reliance on costly expert annotations. While recent rubric-based…

人工智能 · 计算机科学 2026-03-10 Dengcan Liu , Fengkai Yang , Xiaohan Wang , Shurui Yan , Jiajun Chai , Jiahao Li , Yikun Ban , Zhendong Mao , Wei Lin , Guojun Yin

In this paper, an issue of building the RRC model using probability distributions other than beta distribution is addressed. More precisely, in this paper, we propose to build the RRR model using the truncated normal distribution. Heuristic…

机器学习 · 计算机科学 2019-05-27 Pawel Trajdos , Marek Kurzynski

Collaborative filtering (CF) stands as a cornerstone in recommender systems, yet effectively leveraging the massive unlabeled data presents a significant challenge. Current research focuses on addressing the challenge of unlabeled data by…

信息检索 · 计算机科学 2024-12-25 Yuhan Zhao , Rui Chen , Qilong Han , Hongtao Song , Li Chen

Unsupervised cell type identification is crucial for uncovering and characterizing heterogeneous populations in single cell omics studies. Although a range of clustering methods have been developed, most focus exclusively on intrinsic…

人工智能 · 计算机科学 2025-12-12 Liang Peng , Haopeng Liu , Yixuan Ye , Cheng Liu , Wenjun Shen , Si Wu , Hau-San Wong

Embedding computation in biochemical environments incompatible with traditional electronics is expected to have wide-ranging impact in synthetic biology, medicine, nanofabrication and other fields. Natural biochemical systems are typically…

机器学习 · 计算机科学 2022-06-15 Marko Vasic , Cameron Chalk , Austin Luchsinger , Sarfraz Khurshid , David Soloveichik

Sparse Representation (SR) techniques encode the test samples into a sparse linear combination of all training samples and then classify the test samples into the class with the minimum residual. The classification of SR techniques depends…

计算机视觉与模式识别 · 计算机科学 2019-07-01 Chun-Mei Feng , Yong Xu , Zuoyong Li , Jian Yang

Skeleton-based action recognition is widely used in varied areas, e.g., surveillance and human-machine interaction. Existing models are mainly learned in a supervised manner, thus heavily depending on large-scale labeled data which could be…

计算机视觉与模式识别 · 计算机科学 2023-02-14 Peng Wang , Jun Wen , Chenyang Si , Yuntao Qian , Liang Wang

Restricted kernel machines (RKMs) represent a versatile and powerful framework within the kernel machine family, leveraging conjugate feature duality to address a wide range of machine learning tasks, including classification, regression,…

机器学习 · 计算机科学 2025-04-17 Ritik Mishra , Mushir Akhtar , M. Tanveer

We propose a new method for training iterative collective classifiers for labeling nodes in network data. The iterative classification algorithm (ICA) is a canonical method for incorporating relational information into classification. Yet,…

机器学习 · 计算机科学 2017-03-21 Shuangfei Fan , Bert Huang