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Accurate segmentation of organelle instances from electron microscopy (EM) images plays an essential role in many neuroscience researches. However, practical scenarios usually suffer from high annotation costs, label scarcity, and large…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Dafei Qiu , Shan Xiong , Jiajin Yi , Jialin Peng

Automated nodule segmentation is essential for computer-assisted diagnosis in ultrasound images. Nevertheless, most existing methods depend on precise pixel-level annotations by medical professionals, a process that is both costly and…

计算机视觉与模式识别 · 计算机科学 2024-07-19 Xingyue Zhao , Peiqi Li , Xiangde Luo , Meng Yang , Shi Chang , Zhongyu Li

Since the preparation of labeled data for training semantic segmentation networks of point clouds is a time-consuming process, weakly supervised approaches have been introduced to learn from only a small fraction of data. These methods are…

计算机视觉与模式识别 · 计算机科学 2022-09-16 Gengxin Liu , Oliver van Kaick , Hui Huang , Ruizhen Hu

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…

机器学习 · 计算机科学 2022-11-28 Harit Vishwakarma , Nicholas Roberts , Frederic Sala

Supervised object detection and semantic segmentation require object or even pixel level annotations. When there exist image level labels only, it is challenging for weakly supervised algorithms to achieve accurate predictions. The accuracy…

计算机视觉与模式识别 · 计算机科学 2018-03-06 Weifeng Ge , Sibei Yang , Yizhou Yu

In order to maximize the applicability of sentiment analysis results, it is necessary to not only classify the overall sentiment (positive/negative) of a given document but also to identify the main words that contribute to the…

计算与语言 · 计算机科学 2017-10-02 Gichang Lee , Jaeyun Jeong , Seungwan Seo , CzangYeob Kim , Pilsung Kang

Negative sampling approaches are prevalent in implicit collaborative filtering for obtaining negative labels from massive unlabeled data. As two major concerns in negative sampling, efficiency and effectiveness are still not fully achieved…

机器学习 · 计算机科学 2020-09-09 Jingtao Ding , Yuhan Quan , Quanming Yao , Yong Li , Depeng Jin

In weakly-supervised text classification, only label names act as sources of supervision. Predominant approaches to weakly-supervised text classification utilize a two-phase framework, where test samples are first assigned pseudo-labels and…

计算与语言 · 计算机科学 2022-10-14 Seongmin Park , Jihwa Lee

Training object detectors with only image-level annotations is very challenging because the target objects are often surrounded by a large number of background clutters. Many existing approaches tackle this problem through object proposal…

计算机视觉与模式识别 · 计算机科学 2017-08-08 Wenhui Jiang , Thuyen Ngo , B. S. Manjunath , Zhicheng Zhao , Fei Su

Weakly-supervised text classification aims to induce text classifiers from only a few user-provided seed words. The vast majority of previous work assumes high-quality seed words are given. However, the expert-annotated seed words are…

计算与语言 · 计算机科学 2021-04-21 Yiping Jin , Akshay Bhatia , Dittaya Wanvarie

The performance of the state-of-the-art image segmentation methods heavily relies on the high-quality annotations, which are not easily affordable, particularly for medical data. To alleviate this limitation, in this study, we propose a…

机器学习 · 统计学 2019-08-20 Aliasghar Mortazi , Naji Khosravan , Drew A. Torigian , Sila Kurugol , Ulas Bagci

Automatic medical image segmentation is a fundamental step in computer-aided diagnosis, yet fully supervised approaches demand extensive pixel-level annotations that are costly and time-consuming. To alleviate this burden, we propose a…

计算机视觉与模式识别 · 计算机科学 2025-10-20 Lei Shi , Gang Li , Junxing Zhang

Object detection is an import task of computer vision.A variety of methods have been proposed,but methods using the weak labels still do not have a satisfactory result.In this paper,we propose a new framework that using the weakly…

计算机视觉与模式识别 · 计算机科学 2016-07-19 Ke Yang , Dongsheng Li , Yong Dou , Shaohe Lv , Qiang Wang

Due to the few annotated labels of 3D point clouds, how to learn discriminative features of point clouds to segment object instances is a challenging problem. In this paper, we propose a simple yet effective 3D instance segmentation…

计算机视觉与模式识别 · 计算机科学 2022-10-12 Linghua Tang , Le Hui , Jin Xie

In this paper, we propose a variational approach to weakly supervised document-level multi-aspect sentiment classification. Instead of using user-generated ratings or annotations provided by domain experts, we use target-opinion word pairs…

计算与语言 · 计算机科学 2019-04-11 Ziqian Zeng , Wenxuan Zhou , Xin Liu , Yangqiu Song

Weakly supervised instance segmentation reduces the cost of annotations required to train models. However, existing approaches which rely only on image-level class labels predominantly suffer from errors due to (a) partial segmentation of…

计算机视觉与模式识别 · 计算机科学 2021-03-25 Qing Liu , Vignesh Ramanathan , Dhruv Mahajan , Alan Yuille , Zhenheng Yang

Semantic segmentation requires dense pixel-level annotations, which are costly and time-consuming to acquire. To address this, we present SeSAM, a framework that uses a foundational segmentation model, i.e. Segment Anything Model (SAM),…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Anurag Das , Anna Kukleva , Xinting Hu , Yuki M. Asano , Bernt Schiele

Recommenders built upon implicit collaborative filtering are typically trained to distinguish between users' positive and negative preferences. When direct observations of the latter are unavailable, negative training data are constructed…

信息检索 · 计算机科学 2026-01-28 Yueqing Xuan , Kacper Sokol , Mark Sanderson , Jeffrey Chan

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…

计算机视觉与模式识别 · 计算机科学 2026-05-14 Stefano Colamonaco , Andrei-Bogdan Florea , Jaron Maene

Weakly supervised segmentation is an important problem in medical image analysis due to the high cost of pixelwise annotation. Prior methods, while often focusing on weak labels of 2D images, exploit few structural cues of volumetric…

计算机视觉与模式识别 · 计算机科学 2021-05-07 Qian He , Shuailin Li , Xuming He