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We develop scalable randomized kernel methods for jointly associating data from multiple sources and simultaneously predicting an outcome or classifying a unit into one of two or more classes. The proposed methods model nonlinear…

统计方法学 · 统计学 2023-04-11 Sandra E. Safo , Han Lu

Contrastive learning methods train visual encoders by comparing views from one instance to others. Typically, the views created from one instance are set as positive, while views from other instances are negative. This binary instance…

计算机视觉与模式识别 · 计算机科学 2023-03-31 Chongjian Ge , Jiangliu Wang , Zhan Tong , Shoufa Chen , Yibing Song , Ping Luo

Unsupervised two-view learning, or detection of dependencies between two paired data sets, is typically done by some variant of canonical correlation analysis (CCA). CCA searches for a linear projection for each view, such that the…

机器学习 · 统计学 2016-11-18 Leo Lahti , Samuel Myllykangas , Sakari Knuutila , Samuel Kaski

Conditional Random Rields (CRF) have been widely applied in image segmentations. While most studies rely on hand-crafted features, we here propose to exploit a pre-trained large convolutional neural network (CNN) to generate deep features…

计算机视觉与模式识别 · 计算机科学 2015-03-31 Fayao Liu , Guosheng Lin , Chunhua Shen

Self-supervised methods based on contrastive learning have achieved great success in unsupervised visual representation learning. However, most methods under this framework suffer from the problem of false negative samples. Inspired by the…

计算机视觉与模式识别 · 计算机科学 2023-11-20 Chen Peng , Xianzhong Long , Yun Li

In today's data-intensive landscape, where high-dimensional datasets are increasingly common, reducing the number of input features is essential to prevent overfitting and improve model accuracy. Despite numerous efforts to tackle…

机器学习 · 计算机科学 2024-11-05 Jesus S. Aguilar-Ruiz , Cayetano Romero , Andrea Cicconardi

This paper describes the results of formally evaluating the MCV (Markov concurrent vision) image labeling algorithm which is a (semi-) hierarchical algorithm commencing with a partition made up of single pixel regions and merging regions or…

计算机视觉与模式识别 · 计算机科学 2020-08-18 John Mashford , Brad Lane , Vic Ciesielski , Felix Lipkin

Convolutional Neural Networks (CNNs) have made significant progress on several computer vision benchmarks, but are fraught with numerous non-human biases such as vulnerability to adversarial samples. Their lack of explainability makes…

计算机视觉与模式识别 · 计算机科学 2020-12-08 Malhar Jere , Maghav Kumar , Farinaz Koushanfar

How do humans learn to acquire a powerful, flexible and robust representation of objects? While much of this process remains unknown, it is clear that humans do not require millions of object labels. Excitingly, recent algorithmic…

计算机视觉与模式识别 · 计算机科学 2020-10-19 Robert Geirhos , Kantharaju Narayanappa , Benjamin Mitzkus , Matthias Bethge , Felix A. Wichmann , Wieland Brendel

Covariance-based data processing is widespread across signal processing and machine learning applications due to its ability to model data interconnectivities and dependencies. However, harmful biases in the data may become encoded in the…

机器学习 · 计算机科学 2025-01-15 Andrea Cavallo , Madeline Navarro , Santiago Segarra , Elvin Isufi

In this paper, we propose a novel semi-supervised feature selection framework by mining correlations among multiple tasks and apply it to different multimedia applications. Instead of independently computing the importance of features for…

机器学习 · 计算机科学 2017-07-11 Xiaojun Chang , Yi Yang

Convolutional Neural Networks (CNNs) are powerful models that achieve impressive results for image classification. In addition, pre-trained CNNs are also useful for other computer vision tasks as generic feature extractors. This paper aims…

计算机视觉与模式识别 · 计算机科学 2015-07-10 Ben Athiwaratkun , Keegan Kang

The immense amount of time series data produced by astronomical surveys has called for the use of machine learning algorithms to discover and classify several million celestial sources. In the case of variable stars, supervised learning…

太阳与恒星天体物理 · 物理学 2022-10-12 R. Pantoja , M. Catelan , K. Pichara , P. Protopapas

We present a novel unsupervised feature representation learning method, Visual Commonsense Region-based Convolutional Neural Network (VC R-CNN), to serve as an improved visual region encoder for high-level tasks such as captioning and VQA.…

计算机视觉与模式识别 · 计算机科学 2020-04-28 Tan Wang , Jianqiang Huang , Hanwang Zhang , Qianru Sun

Multi-view learning can provide self-supervision when different views are available of the same data. The distributional hypothesis provides another form of useful self-supervision from adjacent sentences which are plentiful in large…

计算与语言 · 计算机科学 2018-05-22 Shuai Tang , Virginia R. de Sa

A semi-supervised learning framework using the feedforward-designed convolutional neural networks (FF-CNNs) is proposed for image classification in this work. One unique property of FF-CNNs is that no backpropagation is used in model…

计算机视觉与模式识别 · 计算机科学 2019-02-07 Yueru Chen , Yijing Yang , Min Zhang , C. -C. Jay Kuo

Common Representation Learning (CRL), wherein different descriptions (or views) of the data are embedded in a common subspace, is receiving a lot of attention recently. Two popular paradigms here are Canonical Correlation Analysis (CCA)…

计算与语言 · 计算机科学 2015-10-13 Sarath Chandar , Mitesh M. Khapra , Hugo Larochelle , Balaraman Ravindran

Training convolutional networks for semantic segmentation with strong (per-pixel) and weak (per-bounding-box) supervision requires a large amount of weakly labeled data. We propose two methods for selecting the most relevant data with weak…

计算机视觉与模式识别 · 计算机科学 2019-07-17 Panagiotis Meletis , Rob Romijnders , Gijs Dubbelman

With the recent success of visual features from deep convolutional neural networks (DCNN) in visual robot self-localization, it has become important and practical to address more general self-localization scenarios. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2016-03-04 Tanaka Kanji

We consider the computation by simulation and neural net regression of conditional expectations, or more general elicitable statistics, of functionals of processes $(X, Y )$. Here an exogenous component $Y$ (Markov by itself) is…

计算金融 · 定量金融 2022-12-01 Lokman Abbas-Turki , Stéphane Crépey , Bouazza Saadeddine