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Labeling training data has become one of the major roadblocks to using machine learning. Among various weak supervision paradigms, programmatic weak supervision (PWS) has achieved remarkable success in easing the manual labeling bottleneck…

Machine Learning · Computer Science 2022-02-15 Jieyu Zhang , Cheng-Yu Hsieh , Yue Yu , Chao Zhang , Alexander Ratner

To reduce the human annotation efforts, the programmatic weak supervision (PWS) paradigm abstracts weak supervision sources as labeling functions (LFs) and involves a label model to aggregate the output of multiple LFs to produce training…

Machine Learning · Computer Science 2023-03-09 Renzhi Wu , Shen-En Chen , Jieyu Zhang , Xu Chu

Weak supervision (WS) frameworks are a popular way to bypass hand-labeling large datasets for training data-hungry models. These approaches synthesize multiple noisy but cheaply-acquired estimates of labels into a set of high-quality…

Machine Learning · Computer Science 2023-11-30 Changho Shin , Winfred Li , Harit Vishwakarma , Nicholas Roberts , Frederic Sala

Weakly supervised visual recognition using inexact supervision is a critical yet challenging learning problem. It significantly reduces human labeling costs and traditionally relies on multi-instance learning and pseudo-labeling. This paper…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Lianghui Zhu , Junwei Zhou , Yan Liu , Xin Hao , Wenyu Liu , Xinggang Wang

Aggregating multiple sources of weak supervision (WS) can ease the data-labeling bottleneck prevalent in many machine learning applications, by replacing the tedious manual collection of ground truth labels. Current state of the art…

Machine Learning · Computer Science 2021-12-01 Salva Rühling Cachay , Benedikt Boecking , Artur Dubrawski

Weak supervision enables efficient development of training sets by reducing the need for ground truth labels. However, the techniques that make weak supervision attractive -- such as integrating any source of signal to estimate unknown…

Machine Learning · Computer Science 2023-11-30 Changho Shin , Sonia Cromp , Dyah Adila , Frederic Sala

Programmatic weak supervision (PWS) significantly reduces human effort for labeling data by combining the outputs of user-provided labeling functions (LFs) on unlabeled datapoints. However, the quality of the generated labels depends…

Machine Learning · Computer Science 2025-06-05 Chenjie Li , Amir Gilad , Boris Glavic , Zhengjie Miao , Sudeepa Roy

Programmatic weak supervision creates models without hand-labeled training data by combining the outputs of heuristic labelers. Existing frameworks make the restrictive assumption that labelers output a single class label. Enabling users to…

Machine Learning · Computer Science 2022-03-28 Peilin Yu , Tiffany Ding , Stephen H. Bach

Efficient data annotation stands as a significant bottleneck in training contemporary machine learning models. The Programmatic Weak Supervision (PWS) pipeline presents a solution by utilizing multiple weak supervision sources to…

Machine Learning · Computer Science 2025-03-18 Naiqing Guan , Nick Koudas

Weak supervision (WS) is an alternative to the traditional supervised learning to address the need for ground truth. Data programming is a practical WS approach that allows programmatic labeling data samples using labeling functions (LFs)…

Machine Learning · Computer Science 2022-04-14 Gürkan Solmaz , Flavio Cirillo , Fabio Maresca , Anagha Gode Anil Kumar

Creating labeled training sets has become one of the major roadblocks in machine learning. To address this, recent \emph{Weak Supervision (WS)} frameworks synthesize training labels from multiple potentially noisy supervision sources.…

Machine Learning · Computer Science 2022-03-16 Jieyu Zhang , Bohan Wang , Xiangchen Song , Yujing Wang , Yaming Yang , Jing Bai , Alexander Ratner

Recent Weak Supervision (WS) approaches have had widespread success in easing the bottleneck of labeling training data for machine learning by synthesizing labels from multiple potentially noisy supervision sources. However, proper…

Machine Learning · Computer Science 2021-10-12 Jieyu Zhang , Yue Yu , Yinghao Li , Yujing Wang , Yaming Yang , Mao Yang , Alexander Ratner

Weak supervision (WS) is a popular approach for label-efficient learning, leveraging diverse sources of noisy but inexpensive weak labels to automatically annotate training data. Despite its wide usage, WS and its practical value are…

Machine Learning · Computer Science 2025-01-31 Tianyi Zhang , Linrong Cai , Jeffrey Li , Nicholas Roberts , Neel Guha , Jinoh Lee , Frederic Sala

Creating large, good quality labeled data has become one of the major bottlenecks for developing machine learning applications. Multiple techniques have been developed to either decrease the dependence of labeled data (zero/few-shot…

Computation and Language · Computer Science 2023-02-08 Abhinav Bohra , Huy Nguyen , Devashish Khatwani

Weak supervision (WS) is a rich set of techniques that produce pseudolabels by aggregating easily obtained but potentially noisy label estimates from a variety of sources. WS is theoretically well understood for binary classification, where…

Machine Learning · Computer Science 2022-11-28 Harit Vishwakarma , Nicholas Roberts , Frederic Sala

Labeling training data is a key bottleneck in the modern machine learning pipeline. Recent weak supervision approaches combine labels from multiple noisy sources by estimating their accuracies without access to ground truth labels; however,…

Machine Learning · Statistics 2019-03-15 Paroma Varma , Frederic Sala , Ann He , Alexander Ratner , Christopher Ré

Weakly supervised semantic segmentation (WSSS) trains dense pixel-level segmentation models from partial or coarse annotations such as bounding boxes, scribbles, or image-level tags. While recent work leverages foundation models such as the…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Stefano Colamonaco , Andrei-Bogdan Florea , Jaron Maene

Frame-level micro- and macro-expression spotting methods require time-consuming frame-by-frame observation during annotation. Meanwhile, video-level spotting lacks sufficient information about the location and number of expressions during…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Wang-Wang Yu , Xian-Shi Zhang , Fu-Ya Luo , Yijun Cao , Kai-Fu Yang , Hong-Mei Yan , Yong-Jie Li

Weak supervision (WS) is a powerful method to build labeled datasets for training supervised models in the face of little-to-no labeled data. It replaces hand-labeling data with aggregating multiple noisy-but-cheap label estimates expressed…

Semi-supervised semantic segmentation (SSSS) aims to improve segmentation performance by utilizing large amounts of unlabeled data with limited labeled samples. Existing methods often suffer from coupling, where over-reliance on initial…

Computer Vision and Pattern Recognition · Computer Science 2025-04-10 Ebenezer Tarubinga , Jenifer Kalafatovich , Seong-Whan Lee
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