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Deep convolutional neural networks have shown outstanding performance in medical image segmentation tasks. The usual problem when training supervised deep learning methods is the lack of labeled data which is time-consuming and costly to…

Computer Vision and Pattern Recognition · Computer Science 2021-03-04 Suman Sedai , Bhavna Antony , Ravneet Rai , Katie Jones , Hiroshi Ishikawa , Joel Schuman , Wollstein Gadi , Rahil Garnavi

Contrastive pretraining techniques for text classification has been largely studied in an unsupervised setting. However, oftentimes labeled data from related tasks which share label semantics with current task is available. We hypothesize…

Computation and Language · Computer Science 2021-12-22 Samujjwal Ghosh , Subhadeep Maji , Maunendra Sankar Desarkar

Graph neural networks have pushed state-of-the-arts in graph classifications recently. Typically, these methods are studied within the context of supervised end-to-end training, which necessities copious task-specific labels. However, in…

Machine Learning · Computer Science 2023-06-01 Xiao Luo , Yusheng Zhao , Yifang Qin , Wei Ju , Ming Zhang

Training deep neural networks requires massive amounts of training data, but for many tasks only limited labeled data is available. This makes weak supervision attractive, using weak or noisy signals like the output of heuristic methods or…

Machine Learning · Computer Science 2017-12-08 Mostafa Dehghani , Aliaksei Severyn , Sascha Rothe , Jaap Kamps

Deep neural networks are known to be annotation-hungry. Numerous efforts have been devoted to reducing the annotation cost when learning with deep networks. Two prominent directions include learning with noisy labels and semi-supervised…

Computer Vision and Pattern Recognition · Computer Science 2020-02-20 Junnan Li , Richard Socher , Steven C. H. Hoi

Learning with few labeled data has been a longstanding problem in the computer vision and machine learning research community. In this paper, we introduced a new semi-supervised learning framework, SimMatch, which simultaneously considers…

Computer Vision and Pattern Recognition · Computer Science 2022-03-18 Mingkai Zheng , Shan You , Lang Huang , Fei Wang , Chen Qian , Chang Xu

Textual graphs (TGs) are graphs whose nodes correspond to text (sentences or documents), which are widely prevalent. The representation learning of TGs involves two stages: (i) unsupervised feature extraction and (ii) supervised graph…

Computation and Language · Computer Science 2023-08-08 Keyu Duan , Qian Liu , Tat-Seng Chua , Shuicheng Yan , Wei Tsang Ooi , Qizhe Xie , Junxian He

Semi-supervised learning lately has shown much promise in improving deep learning models when labeled data is scarce. Common among recent approaches is the use of consistency training on a large amount of unlabeled data to constrain model…

Machine Learning · Computer Science 2020-11-06 Qizhe Xie , Zihang Dai , Eduard Hovy , Minh-Thang Luong , Quoc V. Le

Establishing dense correspondences across semantically similar images remains a challenging task due to the significant intra-class variations and background clutters. Traditionally, a supervised learning was used for training the models,…

Computer Vision and Pattern Recognition · Computer Science 2022-04-06 Jiwon Kim , Kwangrok Ryoo , Junyoung Seo , Gyuseong Lee , Daehwan Kim , Hansang Cho , Seungryong Kim

Hashing method maps similar high-dimensional data to binary hashcodes with smaller hamming distance, and it has received broad attention due to its low storage cost and fast retrieval speed. Pairwise similarity is easily obtained and widely…

Computer Vision and Pattern Recognition · Computer Science 2019-02-05 Shifeng Zhang , Jianmin Li , Bo Zhang

Semi-supervised learning methods are motivated by the availability of large datasets with unlabeled features in addition to labeled data. Unlabeled data is, however, not guaranteed to improve classification performance and has in fact been…

Machine Learning · Statistics 2019-10-25 Xiuming Liu , Dave Zachariah , Johan Wågberg , Thomas B. Schön

Semi-supervised learning provides an effective paradigm for leveraging unlabeled data to improve a model's performance. Among the many strategies proposed, graph-based methods have shown excellent properties, in particular since they allow…

Machine Learning · Statistics 2021-03-29 Mourad El Hamri , Younès Bennani

Semi supervised learning methods have gained importance in today's world because of large expenses and time involved in labeling the unlabeled data by human experts. The proposed hybrid approach uses SVM and Label Propagation to label the…

Machine Learning · Computer Science 2015-12-08 Aruna Govada , Pravin Joshi , Sahil Mittal , Sanjay K Sahay

We propose a new framework, called Poisson learning, for graph based semi-supervised learning at very low label rates. Poisson learning is motivated by the need to address the degeneracy of Laplacian semi-supervised learning in this regime.…

Machine Learning · Computer Science 2020-08-17 Jeff Calder , Brendan Cook , Matthew Thorpe , Dejan Slepcev

Distantly-Supervised Named Entity Recognition (DS-NER) effectively alleviates the data scarcity problem in NER by automatically generating training samples. Unfortunately, the distant supervision may induce noisy labels, thus undermining…

Computation and Language · Computer Science 2022-12-14 Xiaoye Qu , Jun Zeng , Daizong Liu , Zhefeng Wang , Baoxing Huai , Pan Zhou

Deep learning models trained on large-scale data have achieved encouraging performance in many real-world tasks. Meanwhile, publishing those models trained on sensitive datasets, such as medical records, could pose serious privacy concerns.…

Machine Learning · Computer Science 2022-11-04 Qiuchen Zhang , Jing Ma , Jian Lou , Li Xiong , Xiaoqian Jiang

Current 3D object detection methods heavily rely on an enormous amount of annotations. Semi-supervised learning can be used to alleviate this issue. Previous semi-supervised 3D object detection methods directly follow the practice of…

Computer Vision and Pattern Recognition · Computer Science 2022-11-16 Xiaopei Wu , Yang Zhao , Liang Peng , Hua Chen , Xiaoshui Huang , Binbin Lin , Haifeng Liu , Deng Cai , Wanli Ouyang

Semi-supervised learning algorithms reduce the high cost of acquiring labeled training data by using both labeled and unlabeled data during learning. Deep Convolutional Networks (DCNs) have achieved great success in supervised tasks and as…

Machine Learning · Statistics 2016-12-07 Tan Nguyen , Wanjia Liu , Ethan Perez , Richard G. Baraniuk , Ankit B. Patel

Recent works reveal that feature or label smoothing lies at the core of Graph Neural Networks (GNNs). Concretely, they show feature smoothing combined with simple linear regression achieves comparable performance with the carefully designed…

Machine Learning · Computer Science 2021-10-28 Wentao Zhang , Mingyu Yang , Zeang Sheng , Yang Li , Wen Ouyang , Yangyu Tao , Zhi Yang , Bin Cui

Given a small set of labeled data and a large set of unlabeled data, semi-supervised learning (SSL) attempts to leverage the location of the unlabeled datapoints in order to create a better classifier than could be obtained from supervised…

Machine Learning · Computer Science 2022-05-25 Michael C. Burkhart , Kyle Shan
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