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Samples with ground truth labels may not always be available in numerous domains. While learning from crowdsourcing labels has been explored, existing models can still fail in the presence of sparse, unreliable, or diverging annotations.…

Machine Learning · Computer Science 2021-12-07 Mani Sotoodeh , Li Xiong , Joyce C. Ho

Recently, there has been a burst in the number of research projects on human computation via crowdsourcing. Multiple choice (or labeling) questions could be referred to as a common type of problem which is solved by this approach. As an…

Artificial Intelligence · Computer Science 2014-09-04 Jafar Muhammadi , Hamid Reza Rabiee , Abbas Hosseini

Crowdsourcing has emerged as an alternative solution for collecting large scale labels. However, the majority of recruited workers are not domain experts, so their contributed labels could be noisy. In this paper, we propose a two-stage…

Methodology · Statistics 2023-09-28 Qi Xu , Yubai Yuan , Junhui Wang , Annie Qu

Annotated images are required for both supervised model training and evaluation in image classification. Manually annotating images is arduous and expensive, especially for multi-labeled images. A recent trend for conducting such laboursome…

Computer Vision and Pattern Recognition · Computer Science 2022-12-07 Jianzhe Lin , Tianze Yu , Z. Jane Wang

Early detection and segmentation of skin lesions is crucial for timely diagnosis and treatment, necessary to improve the survival rate of patients. However, manual delineation is time consuming and subject to intra- and inter-observer…

Computer Vision and Pattern Recognition · Computer Science 2019-02-26 Sulaiman Vesal , Shreyas Malakarjun Patil , Nishant Ravikumar , Andreas Maier

Segmenting skin lesions images is relevant both for itself and for assisting in lesion classification, but suffers from the challenge in obtaining annotated data. In this work, we show that segmentation may improve with less data, by…

Computer Vision and Pattern Recognition · Computer Science 2020-04-30 Vinicius Ribeiro , Sandra Avila , Eduardo Valle

Crowdsourcing has emerged as an effective means for performing a number of machine learning tasks such as annotation and labelling of images and other data sets. In most early settings of crowdsourcing, the task involved classification,…

Machine Learning · Computer Science 2020-06-03 Desmond Cai , Duc Thien Nguyen , Shiau Hong Lim , Laura Wynter

Multi-label classification is a common supervised machine learning problem where each instance is associated with multiple classes. The key challenge in this problem is learning the correlations between the classes. An additional challenge…

Machine Learning · Computer Science 2016-04-05 Divya Padmanabhan , Satyanath Bhat , Shirish Shevade , Y. Narahari

Modern, state-of-the-art deep learning approaches yield human like performance in numerous object detection and classification tasks. The foundation for their success is the availability of training datasets of substantially high quantity,…

We propose a novel label fusion technique as well as a crowdsourcing protocol to efficiently obtain accurate epithelial cell segmentations from non-expert crowd workers. Our label fusion technique simultaneously estimates the true…

Computer Vision and Pattern Recognition · Computer Science 2017-02-22 Dmitrij Schlesinger , Florian Jug , Gene Myers , Carsten Rother , Dagmar Kainmüller

The presence of certain clinical dermoscopic features within a skin lesion may indicate melanoma, and automatically detecting these features may lead to more quantitative and reproducible diagnoses. We reformulate the task of classifying…

Computer Vision and Pattern Recognition · Computer Science 2019-03-28 Jeremy Kawahara , Ghassan Hamarneh

Training of neural networks for automated diagnosis of pigmented skin lesions is hampered by the small size and lack of diversity of available datasets of dermatoscopic images. We tackle this problem by releasing the HAM10000 ("Human…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Philipp Tschandl , Cliff Rosendahl , Harald Kittler

We consider crowdsourced labeling under a $d$-type worker-task specialization model, where each worker and task is associated with one particular type among a finite set of types and a worker provides a more reliable answer to tasks of the…

Human-Computer Interaction · Computer Science 2021-06-10 Doyeon Kim , Hye Won Chung

Automated skin lesion analysis is very crucial in clinical practice, as skin cancer is among the most common human malignancy. Existing approaches with deep learning have achieved remarkable performance on this challenging task, however,…

Computer Vision and Pattern Recognition · Computer Science 2019-09-06 Xueying Shi , Qi Dou , Cheng Xue , Jing Qin , Hao Chen , Pheng-Ann Heng

The unprecedented demand for large amount of data has catalyzed the trend of combining human insights with machine learning techniques, which facilitate the use of crowdsourcing to enlist label information both effectively and efficiently.…

Machine Learning · Statistics 2018-06-26 Yao Zhou , Jingrui He

Skin lesion identification is a key step toward dermatological diagnosis. When describing a skin lesion, it is very important to note its body site distribution as many skin diseases commonly affect particular parts of the body. To exploit…

Computer Vision and Pattern Recognition · Computer Science 2022-03-24 Haofu Liao , Jiebo Luo

The rising global prevalence of skin conditions, some of which can escalate to life-threatening stages if not timely diagnosed and treated, presents a significant healthcare challenge. This issue is particularly acute in remote areas where…

Computer Vision and Pattern Recognition · Computer Science 2024-02-19 Mahapara Khurshid , Mayank Vatsa , Richa Singh

Crowdsourcing has become a popular method for collecting labeled training data. However, in many practical scenarios traditional labeling can be difficult for crowdworkers (for example, if the data is high-dimensional or unintuitive, or the…

Machine Learning · Statistics 2017-12-14 Tom Hope , Dafna Shahaf

The data that underlies automated methods in computer vision and machine learning, such as image retrieval and fine-grained recognition, often comes from crowdsourcing. In contexts that rely on the intrinsic motivation of users, we seek to…

Human-Computer Interaction · Computer Science 2024-09-06 Abby Stylianou , Michelle Brachman , Albatool Wazzan , Samuel Black , Richard Souvenir

The growing use of supervised machine learning in research and industry has increased the need for labeled datasets. Crowdsourcing has emerged as a popular method to create data labels. However, working on large batches of tasks leads to…

Human-Computer Interaction · Computer Science 2022-09-30 Chandramohan Sudar , Michael Froehlich , Florian Alt