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We consider quantile estimation in a semi-supervised setting, characterized by two available data sets: (i) a small or moderate sized labeled data set containing observations for a response and a set of possibly high dimensional covariates,…

Methodology · Statistics 2024-08-15 Abhishek Chakrabortty , Guorong Dai , Raymond J. Carroll

With the progress of Mars exploration, numerous Mars image data are collected and need to be analyzed. However, due to the imbalance and distortion of Martian data, the performance of existing computer vision models is unsatisfactory. In…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Wenjing Wang , Lilang Lin , Zejia Fan , Jiaying Liu

Deep neural networks produce state-of-the-art results when trained on a large number of labeled examples but tend to overfit when small amounts of labeled examples are used for training. Creating a large number of labeled examples requires…

Computer Vision and Pattern Recognition · Computer Science 2021-09-13 Attaullah Sahito , Eibe Frank , Bernhard Pfahringer

Data annotation using visual inspection (supervision) of each training sample can be laborious. Interactive solutions alleviate this by helping experts propagate labels from a few supervised samples to unlabeled ones based solely on the…

In recent years, the need for semantic segmentation has arisen across several different applications and environments. However, the expense and redundancy of annotation often limits the quantity of labels available for training in any…

Computer Vision and Pattern Recognition · Computer Science 2019-09-25 Tarun Kalluri , Girish Varma , Manmohan Chandraker , C V Jawahar

Few-shot classification aims to learn a model that can generalize well to new tasks when only a few labeled samples are available. To make use of unlabeled data that are more abundantly available in real applications, Ren et al.…

Computer Vision and Pattern Recognition · Computer Science 2022-06-17 Xueliang Wang , Jianyu Cai , Shuiwang Ji , Houqiang Li , Feng Wu , Jie Wang

We present a simple, yet effective, approach to Semi-Supervised Learning. Our approach is based on estimating density-based distances (DBD) using a shortest path calculation on a graph. These Graph-DBD estimates can then be used in any…

Machine Learning · Computer Science 2012-02-20 Avleen S. Bijral , Nathan Ratliff , Nathan Srebro

Deep learning methodologies have been employed in several different fields, with an outstanding success in image recognition applications, such as material quality control, medical imaging, autonomous driving, etc. Deep learning models rely…

Computer Vision and Pattern Recognition · Computer Science 2022-03-11 Saul Calderon-Ramirez , Shengxiang Yang , David Elizondo

We consider the problems of classification and intrinsic dimension estimation on image data. A new subspace based classifier is proposed for supervised classification or intrinsic dimension estimation. The distribution of the data in each…

Computer Vision and Pattern Recognition · Computer Science 2020-02-11 Liang Liao , Stephen John Maybank

Radio emitter recognition in dense multi-user environments is an important tool for optimizing spectrum utilization, identifying and minimizing interference, and enforcing spectrum policy. Radio data is readily available and easy to obtain…

Machine Learning · Computer Science 2017-01-18 Timothy J. O'Shea , Nathan West , Matthew Vondal , T. Charles Clancy

Semi-supervised learning (SSL) has become an interesting research area due to its capacity for learning in scenarios where both labeled and unlabeled data are available. In this work, we focus on the task of transduction - when the…

Machine Learning · Computer Science 2022-06-15 Emílio Bergamim , Fabricio Breve

We used the Ladder Network [Rasmus et al. (2015)] to perform Hyperspectral Image Classification in a semi-supervised setting. The Ladder Network distinguishes itself from other semi-supervised methods by jointly optimizing a supervised and…

Computer Vision and Pattern Recognition · Computer Science 2018-12-05 Julian Büchel , Okan Ersoy

Recent studies on semi-supervised semantic segmentation (SSS) have seen fast progress. Despite their promising performance, current state-of-the-art methods tend to increasingly complex designs at the cost of introducing more network…

Computer Vision and Pattern Recognition · Computer Science 2022-12-12 Zhen Zhao , Lihe Yang , Sifan Long , Jimin Pi , Luping Zhou , Jingdong Wang

The ability to detect intent in dialogue systems has become increasingly important in modern technology. These systems often generate a large amount of unlabeled data, and manually labeling this data requires substantial human effort.…

Machine Learning · Computer Science 2023-10-19 Nicholas Botzer , David Vasquez , Tim Weninger , Issam Laradji

The paradigm of data programming, which uses weak supervision in the form of rules/labelling functions, and semi-supervised learning, which augments small amounts of labelled data with a large unlabelled dataset, have shown great promise in…

Machine Learning · Computer Science 2021-06-15 Ayush Maheshwari , Oishik Chatterjee , KrishnaTeja Killamsetty , Ganesh Ramakrishnan , Rishabh Iyer

We propose a meta-learning method for semi-supervised learning that learns from multiple tasks with heterogeneous attribute spaces. The existing semi-supervised meta-learning methods assume that all tasks share the same attribute space,…

Machine Learning · Computer Science 2023-11-10 Tomoharu Iwata , Atsutoshi Kumagai

Remote sensing data is crucial for applications ranging from monitoring forest fires and deforestation to tracking urbanization. Most of these tasks require dense pixel-level annotations for the model to parse visual information from…

Computer Vision and Pattern Recognition · Computer Science 2021-10-18 Shasvat Desai , Debasmita Ghose

While data-driven approaches excel at many image analysis tasks, the performance of these approaches is often limited by a shortage of annotated data available for training. Recent work in semi-supervised learning has shown that meaningful…

Computer Vision and Pattern Recognition · Computer Science 2021-01-22 Mayank Golhar , Taylor L. Bobrow , MirMilad Pourmousavi Khoshknab , Simran Jit , Saowanee Ngamruengphong , Nicholas J. Durr

Semi-supervised learning offers an appealing solution for remote sensing (RS) image segmentation to relieve the burden of labor-intensive pixel-level labeling. However, RS images pose unique challenges, including rich multi-scale features…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Shanwen Wang , Xin Sun , Changrui Chen , Danfeng Hong , Jungong Han

We present label gradient alignment, a novel algorithm for semi-supervised learning which imputes labels for the unlabeled data and trains on the imputed labels. We define a semantically meaningful distance metric on the input space by…

Machine Learning · Computer Science 2019-02-07 Jacob Jackson , John Schulman