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The myriad complex systems with multiway interactions motivate the extension of graph-based pairwise connections to higher-order relations. In particular, the simplicial complex has inspired generalizations of graph neural networks (GNNs)…

机器学习 · 统计学 2023-09-15 Madeline Navarro , Santiago Segarra

Multiplex network embedding is an effective technique to jointly learn the low-dimensional representations of nodes across network layers. However, the number of edges among layers may vary significantly. This data imbalance will lead to…

社会与信息网络 · 计算机科学 2023-01-02 Kejia Chen , Yinchu Qiu , Zheng Liu

Data augmentation is an effective approach to tackle over-fitting. Many previous works have proposed different data augmentations strategies for NLP, such as noise injection, word replacement, back-translation etc. Though effective, they…

计算与语言 · 计算机科学 2022-07-13 Le Zhang , Zichao Yang , Diyi Yang

Mixup has shown considerable success in mitigating the challenges posed by limited labeled data in image classification. By synthesizing samples through the interpolation of features and labels, Mixup effectively addresses the issue of data…

机器学习 · 计算机科学 2024-07-16 Wentao Zhao , Qitian Wu , Chenxiao Yang , Junchi Yan

In this paper, we propose a novel data augmentation technique called GenMix, which combines generative and mixture approaches to leverage the strengths of both methods. While generative models excel at creating new data patterns, they face…

计算机视觉与模式识别 · 计算机科学 2024-07-18 Hansang Lee , Haeil Lee , Helen Hong

The state of the art in semantic segmentation is steadily increasing in performance, resulting in more precise and reliable segmentations in many different applications. However, progress is limited by the cost of generating labels for…

计算机视觉与模式识别 · 计算机科学 2020-12-01 Viktor Olsson , Wilhelm Tranheden , Juliano Pinto , Lennart Svensson

Mixup is a data augmentation technique that enhances model generalization by interpolating between data points using a mixing ratio $\lambda$ in the image domain. Recently, the concept of mixup has been adapted to the graph domain through…

机器学习 · 计算机科学 2024-12-12 Weigang Lu , Ziyu Guan , Wei Zhao , Yaming Yang , Yibing Zhan , Yiheng Lu , Dapeng Tao

The Mixup method has proven to be a powerful data augmentation technique in Computer Vision, with many successors that perform image mixing in a guided manner. One of the interesting research directions is transferring the underlying Mixup…

计算与语言 · 计算机科学 2023-09-21 Dominik Lewy , Jacek Mańdziuk

The development of medical image segmentation using deep learning can significantly support doctors' diagnoses. Deep learning needs large amounts of data for training, which also requires data augmentation to extend diversity for preventing…

图像与视频处理 · 电气工程与系统科学 2023-04-27 Xiaoqing Liu , Kenji Ono , Ryoma Bise

Word embeddings improve the performance of NLP systems by revealing the hidden structural relationships between words. Despite their success in many applications, word embeddings have seen very little use in computational social science NLP…

计算与语言 · 计算机科学 2018-02-21 James Foulds

Graph Neural Networks (GNNs) have shown great performance in various tasks, with the core idea of learning from data labels and aggregating messages within the neighborhood of nodes. However, the common challenges in graphs are twofold:…

机器学习 · 计算机科学 2024-11-04 Shenghe Zheng , Hongzhi Wang , Xianglong Liu

One of the challenges in hyperspectral data analysis is the presence of mixed pixels. Mixed pixels are the result of low spatial resolution of hyperspectral sensors. Spectral unmixing methods decompose a mixed pixel into a set of endmembers…

计算机视觉与模式识别 · 计算机科学 2015-06-05 Roozbeh Rajabi , Hassan Ghassemian

Considering audio and image data as having quantum nature (data are represented by density matrices), we achieved better results on training architectures such as 3-layer stacked LSTM and HMM by mixing training samples using superposition…

机器学习 · 计算机科学 2019-10-25 Akilesh Sivaswamy , Evgeny Pavlovskiy

Deep unfolding is a method of growing popularity that fuses iterative optimization algorithms with tools from neural networks to efficiently solve a range of tasks in machine learning, signal and image processing, and communication systems.…

信号处理 · 电气工程与系统科学 2019-10-09 Alexios Balatsoukas-Stimming , Christoph Studer

Mixed-integer linear programs (MILPs) are extensively used to model practical problems such as planning and scheduling. A prominent method for solving MILPs is large neighborhood search (LNS), which iteratively seeks improved solutions…

最优化与控制 · 数学 2024-12-12 Wenbo Liu , Akang Wang , Wenguo Yang , Qingjiang Shi

Highly imbalanced datasets are ubiquitous in medical image classification problems. In such problems, it is often the case that rare classes associated to less prevalent diseases are severely under-represented in labeled databases,…

计算机视觉与模式识别 · 计算机科学 2022-09-15 Adrian Galdran , Gustavo Carneiro , Miguel A. González Ballester

Obtaining object response maps is one important step to achieve weakly-supervised semantic segmentation using image-level labels. However, existing methods rely on the classification task, which could result in a response map only attending…

计算机视觉与模式识别 · 计算机科学 2020-08-05 Yu-Ting Chang , Qiaosong Wang , Wei-Chih Hung , Robinson Piramuthu , Yi-Hsuan Tsai , Ming-Hsuan Yang

We address the problem of reconstructing X-Ray tomographic images from scarce measurements by interpolating missing acquisitions using a self-supervised approach. To do so, we train shallow neural networks to combine two neighbouring…

图像与视频处理 · 电气工程与系统科学 2022-05-18 Emilien Valat , Katayoun Farrahi , Thomas Blumensath

Most existing text recognition methods are trained on large-scale synthetic datasets due to the scarcity of labeled real-world datasets. Synthetic images, however, cannot faithfully reproduce real-world scenarios, such as uneven…

计算机视觉与模式识别 · 计算机科学 2025-05-13 Zhengmi Tang , Yuto Mitsui , Tomo Miyazaki , Shinichiro Omachi

In many machine learning applications, it is important for the model to provide confidence scores that accurately capture its prediction uncertainty. Although modern learning methods have achieved great success in predictive accuracy,…

机器学习 · 计算机科学 2022-07-12 Linjun Zhang , Zhun Deng , Kenji Kawaguchi , James Zou