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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

Graph Domain Adaptation (GDA) transfers knowledge from labeled source graphs to unlabeled target graphs, addressing the challenge of label scarcity. In this paper, we highlight the significance of graph homophily, a pivotal factor for graph…

Social and Information Networks · Computer Science 2025-06-03 Ruiyi Fang , Bingheng Li , Jingyu Zhao , Ruizhi Pu , Qiuhao Zeng , Gezheng Xu , Charles Ling , Boyu Wang

We present a lightweight annotation tool, the Data AnnotatoR Tool (DART), for the general task of labeling structured data with textual descriptions. The tool is implemented as an interactive application that reduces human efforts in…

Computation and Language · Computer Science 2020-12-02 Ernie Chang , Jeriah Caplinger , Alex Marin , Xiaoyu Shen , Vera Demberg

Data annotation and synthesis generally refers to the labeling or generating of raw data with relevant information, which could be used for improving the efficacy of machine learning models. The process, however, is labor-intensive and…

Computation and Language · Computer Science 2024-12-04 Zhen Tan , Dawei Li , Song Wang , Alimohammad Beigi , Bohan Jiang , Amrita Bhattacharjee , Mansooreh Karami , Jundong Li , Lu Cheng , Huan Liu

Transfer learning is an important step to extract meaningful features and overcome the data limitation in the medical Visual Question Answering (VQA) task. However, most of the existing medical VQA methods rely on external data for transfer…

Computer Vision and Pattern Recognition · Computer Science 2021-06-29 Tuong Do , Binh X. Nguyen , Erman Tjiputra , Minh Tran , Quang D. Tran , Anh Nguyen

Despite recent advancements in deep learning, deep neural networks continue to suffer from performance degradation when applied to new data that differs from training data. Test-time adaptation (TTA) aims to address this challenge by…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Sanghun Jung , Jungsoo Lee , Nanhee Kim , Amirreza Shaban , Byron Boots , Jaegul Choo

Annotating large collections of textual data can be time consuming and expensive. That is why the ability to train models with limited annotation budgets is of great importance. In this context, it has been shown that under tight annotation…

Computation and Language · Computer Science 2022-10-13 César González-Gutiérrez , Audi Primadhanty , Francesco Cazzaro , Ariadna Quattoni

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

Multi-label learning (MLL) has gained attention for its ability to represent real-world data. Label Distribution Learning (LDL), an extension of MLL to learning from label distributions, faces challenges in collecting accurate label…

Machine Learning · Computer Science 2025-02-04 Zhiqiang Kou , Si Qin , Hailin Wang , Mingkun Xie , Shuo Chen , Yuheng Jia , Tongliang Liu , Masashi Sugiyama , Xin Geng

Annotating data for supervised learning can be costly. When the annotation budget is limited, active learning can be used to select and annotate those observations that are likely to give the most gain in model performance. We propose an…

Machine Learning · Statistics 2024-08-19 Amanda Olmin , Jakob Lindqvist , Lennart Svensson , Fredrik Lindsten

Variational data assimilation in continuous time is revisited. The central techniques applied in this paper are in part adopted from the theory of optimal nonlinear control. Alternatively, the investigated approach can be considered as a…

Atmospheric and Oceanic Physics · Physics 2015-05-18 Jochen Bröcker

Training deep neural networks is challenging when large and annotated datasets are unavailable. Extensive manual annotation of data samples is time-consuming, expensive, and error-prone, notably when it needs to be done by experts. To…

Machine Learning · Computer Science 2021-09-08 Barbara C Benato , Alexandru C Telea , Alexandre X Falcão

For training a video-based action recognition model that accepts multi-view video, annotating frame-level labels is tedious and difficult. However, it is relatively easy to annotate sequence-level labels. This kind of coarse annotations are…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Vijay John , Yasutomo Kawanishi

Weakly-supervised object detection (WSOD) has emerged as an inspiring recent topic to avoid expensive instance-level object annotations. However, the bounding boxes of most existing WSOD methods are mainly determined by precomputed…

Computer Vision and Pattern Recognition · Computer Science 2021-08-04 Bowen Dong , Zitong Huang , Yuelin Guo , Qilong Wang , Zhenxing Niu , Wangmeng Zuo

Current methods for 3D semantic segmentation propose training models with limited annotations to address the difficulty of annotating large, irregular, and unordered 3D point cloud data. They usually focus on the 3D domain only, without…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Lechun You , Zhonghua Wu , Weide Liu , Xulei Yang , Jun Cheng , Wei Zhou , Bharadwaj Veeravalli , Guosheng Lin

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

Embedding retrofitting adjusts pre-trained word vectors using knowledge graph constraints to improve domain-specific retrieval. However, the effectiveness of retrofitting depends critically on knowledge graph quality, which in turn depends…

Computation and Language · Computer Science 2026-02-18 Anantha Sharma

3D Visual Question Answering (3D VQA) is crucial for enabling models to perceive the physical world and perform spatial reasoning. In 3D VQA, the free-form nature of answers often leads to improper annotations that can confuse or mislead…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Shengli Zhou , Yang Liu , Feng Zheng

Nowadays, a huge number of images are available. However, retrieving a required image for an ordinary user is a challenging task in computer vision systems. During the past two decades, many types of research have been introduced to improve…

Multimedia · Computer Science 2020-01-30 Amir Vatani , Milad Taleby Ahvanooey , Mostafa Rahimi

Obtaining large annotated datasets is critical for training successful machine learning models and it is often a bottleneck in practice. Weak supervision offers a promising alternative for producing labeled datasets without ground truth…

Machine Learning · Computer Science 2021-01-27 Benedikt Boecking , Willie Neiswanger , Eric Xing , Artur Dubrawski