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For best performance, today's semantic segmentation methods use large and carefully labeled datasets, requiring expensive annotation budgets. In this work, we show that coarse annotation is a low-cost but highly effective alternative for…

Computer Vision and Pattern Recognition · Computer Science 2022-12-16 Anurag Das , Yongqin Xian , Yang He , Zeynep Akata , Bernt Schiele

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

Deep Neural Networks trained in a fully supervised fashion are the dominant technology in perception-based autonomous driving systems. While collecting large amounts of unlabeled data is already a major undertaking, only a subset of it can…

Computer Vision and Pattern Recognition · Computer Science 2020-04-10 Elmar Haussmann , Michele Fenzi , Kashyap Chitta , Jan Ivanecky , Hanson Xu , Donna Roy , Akshita Mittel , Nicolas Koumchatzky , Clement Farabet , Jose M. Alvarez

Predicting all applicable labels for a given image is known as multi-label classification. Compared to the standard multi-class case (where each image has only one label), it is considerably more challenging to annotate training data for…

Computer Vision and Pattern Recognition · Computer Science 2021-10-25 Elijah Cole , Oisin Mac Aodha , Titouan Lorieul , Pietro Perona , Dan Morris , Nebojsa Jojic

Pre-trained vision-language models learn massive data to model unified representations of images and natural languages, which can be widely applied to downstream machine learning tasks. In addition to zero-shot inference, in order to better…

Computer Vision and Pattern Recognition · Computer Science 2024-06-28 Qian-Wei Wang , Yuqiu Xie , Letian Zhang , Zimo Liu , Shu-Tao Xia

State-of-the-art, high capacity deep neural networks not only require large amounts of labelled training data, they are also highly susceptible to label errors in this data, typically resulting in large efforts and costs and therefore…

Machine Learning · Computer Science 2020-07-20 Christian Haase-Schütz , Rainer Stal , Heinz Hertlein , Bernhard Sick

Obtaining accurate labels for instance segmentation is particularly challenging due to the complex nature of the task. Each image necessitates multiple annotations, encompassing not only the object class but also its precise spatial…

Computer Vision and Pattern Recognition · Computer Science 2025-04-04 Moshe Kimhi , Omer Kerem , Eden Grad , Ehud Rivlin , Chaim Baskin

Datasets labelled by human annotators are widely used in the training and testing of machine learning models. In recent years, researchers are increasingly paying attention to label quality. However, it is not always possible to objectively…

Computer Vision and Pattern Recognition · Computer Science 2024-05-15 Luisa Schwirten , Jannes Scholz , Daniel Kondermann , Janis Keuper

Human annotations are vital to supervised learning, yet annotators often disagree on the correct label, especially as annotation tasks increase in complexity. A strategy to improve label quality is to ask multiple annotators to label the…

Machine Learning · Computer Science 2023-12-22 Alexander Braylan , Madalyn Marabella , Omar Alonso , Matthew Lease

We propose a point cloud annotation framework that employs human-in-loop learning to enable the creation of large point cloud datasets with per-point annotations. Sparse labels from a human annotator are iteratively propagated to generate a…

Computer Vision and Pattern Recognition · Computer Science 2019-06-12 Siddhant Jain , Sowmya Munukutla , David Held

Modern AI algorithms require labeled data. In real world, majority of data are unlabeled. Labeling the data are costly. this is particularly true for some areas requiring special skills, such as reading radiology images by physicians. To…

Machine Learning · Statistics 2026-03-31 Yiran Huang , Jian-Feng Yang , Haoda Fu

High-quality pixel-level annotations are essential for the semantic segmentation of remote sensing imagery. However, such labels are expensive to obtain and often affected by noise due to the labor-intensive and time-consuming nature of…

Instance segmentation is a computer vision task where separate objects in an image are detected and segmented. State-of-the-art deep neural network models require large amounts of labeled data in order to perform well in this task. Making…

Computer Vision and Pattern Recognition · Computer Science 2022-02-21 Tuomas Sormunen , Arttu Lämsä , Miguel Bordallo Lopez

Supervised deep learning (DL) receives great interest for automated analysis of microscopic images with an increasing body of literature supporting its potential. The development and validation of those DL models relies heavily on the…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Christof A. Bertram , Viktoria Weiss , Jonas Ammeling , F. Maria Schabel , Taryn A. Donovan , Frauke Wilm , Christian Marzahl , Katharina Breininger , Marc Aubreville

The recent success of deep neural networks is powered in part by large-scale well-labeled training data. However, it is a daunting task to laboriously annotate an ImageNet-like dateset. On the contrary, it is fairly convenient, fast, and…

Computer Vision and Pattern Recognition · Computer Science 2018-03-23 Yifan Ding , Liqiang Wang , Deliang Fan , Boqing Gong

Neural natural language generation (NLG) and understanding (NLU) models are data-hungry and require massive amounts of annotated data to be competitive. Recent frameworks address this bottleneck with generative models that synthesize weak…

Computation and Language · Computer Science 2021-02-09 Ernie Chang , Vera Demberg , Alex Marin

Since the behavior of a neural network model is adversely affected by a lack of diversity in training data, we present a method that identifies and explains such deficiencies. When a dataset is labeled, we note that annotations alone are…

Computer Vision and Pattern Recognition · Computer Science 2020-12-17 Dhasarathy Parthasarathy , Anton Johansson

Natural Language Understanding (NLU) models are typically trained in a supervised learning framework. In the case of intent classification, the predicted labels are predefined and based on the designed annotation schema while the labelling…

Deep learning has achieved significant breakthroughs in medical imaging, but these advancements are often dependent on large, well-annotated datasets. However, obtaining such datasets poses a significant challenge, as it requires…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Siteng Ma , Honghui Du , Yu An , Jing Wang , Qinqin Wang , Haochang Wu , Aonghus Lawlor , Ruihai Dong

Labelling user data is a central part of the design and evaluation of pervasive systems that aim to support the user through situation-aware reasoning. It is essential both in designing and training the system to recognise and reason about…