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Weakly supervised text classification (WSTC), also called zero-shot or dataless text classification, has attracted increasing attention due to its applicability in classifying a mass of texts within the dynamic and open Web environment,…

计算与语言 · 计算机科学 2024-04-26 Miaomiao Li , Jiaqi Zhu , Yang Wang , Yi Yang , Yilin Li , Hongan Wang

The absence of adequately sufficient expert-level tumor annotations hinders the effectiveness of supervised learning based opportunistic cancer screening on medical imaging. Clinical reports (that are rich in descriptive textual details)…

计算机视觉与模式识别 · 计算机科学 2024-05-24 Guangyu Guo , Jiawen Yao , Yingda Xia , Tony C. W. Mok , Zhilin Zheng , Junwei Han , Le Lu , Dingwen Zhang , Jian Zhou , Ling Zhang

A great variety of text tasks such as topic or spam identification, user profiling, and sentiment analysis can be posed as a supervised learning problem and tackle using a text classifier. A text classifier consists of several subprocesses,…

计算与语言 · 计算机科学 2017-09-18 Eric S. Tellez , Daniela Moctezuma , Sabino Miranda-Jímenez , Mario Graff

Multi-label Text Classification (MLTC) is the task of categorizing documents into one or more topics. Considering the large volumes of data and varying domains of such tasks, fully supervised learning requires manually fully annotated…

计算与语言 · 计算机科学 2022-10-28 Ziwen Liu , Josep Grau-Bove , Scott Allan Orr

Etremely Weakly Supervised Text Classification (XWS-TC) refers to text classification based on minimal high-level human guidance, such as a few label-indicative seed words or classification instructions. There are two mainstream approaches…

计算与语言 · 计算机科学 2023-05-23 Zihan Wang , Tianle Wang , Dheeraj Mekala , Jingbo Shang

Healthcare providers usually record detailed notes of the clinical care delivered to each patient for clinical, research, and billing purposes. Due to the unstructured nature of these narratives, providers employ dedicated staff to assign…

计算与语言 · 计算机科学 2022-08-03 Chufan Gao , Mononito Goswami , Jieshi Chen , Artur Dubrawski

Term weighting metrics assign weights to terms in order to discriminate the important terms from the less crucial ones. Due to this characteristic, these metrics have attracted growing attention in text classification and recently in…

计算与语言 · 计算机科学 2016-10-12 Hussam Hamdan , Patrice Bellot , Frederic Bechet

Obtaining labelled data in a particular context could be expensive and time consuming. Although different algorithms, including unsupervised learning, semi-supervised learning, self-learning have been adopted, the performance of text…

计算与语言 · 计算机科学 2022-12-26 Ying Xie , Dongping Song

Whole Slide Images (WSIs) are giga-pixel in scale and are typically partitioned into small instances in WSI classification pipelines for computational feasibility. However, obtaining extensive instance level annotations is costly, making…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Jayanie Bogahawatte , Sachith Seneviratne , Saman Halgamuge

Patient experience and care quality are crucial for a hospital's sustainability and reputation. The analysis of patient feedback offers valuable insight into patient satisfaction and outcomes. However, the unstructured nature of these…

计算与语言 · 计算机科学 2025-02-21 Hajar Sakai , Sarah S. Lam , Mohammadsadegh Mikaeili , Joshua Bosire , Franziska Jovin

Solving text classification in a weakly supervised manner is important for real-world applications where human annotations are scarce. In this paper, we propose to query a masked language model with cloze style prompts to obtain supervision…

计算与语言 · 计算机科学 2022-05-16 Ziqian Zeng , Weimin Ni , Tianqing Fang , Xiang Li , Xinran Zhao , Yangqiu Song

Instead of relying on human-annotated training samples to build a classifier, weakly supervised scientific paper classification aims to classify papers only using category descriptions (e.g., category names, category-indicative keywords).…

计算与语言 · 计算机科学 2023-10-24 Yu Zhang , Bowen Jin , Xiusi Chen , Yanzhen Shen , Yunyi Zhang , Yu Meng , Jiawei Han

We develop an algorithm which can learn from partially labeled and unsegmented sequential data. Most sequential loss functions, such as Connectionist Temporal Classification (CTC), break down when many labels are missing. We address this…

机器学习 · 计算机科学 2022-03-07 Vineel Pratap , Awni Hannun , Gabriel Synnaeve , Ronan Collobert

Text classification is the most basic natural language processing task. It has a wide range of applications ranging from sentiment analysis to topic classification. Recently, deep learning approaches based on CNN, LSTM, and Transformers…

Weakly Supervised Semantic Segmentation (WSSS), which leverages image-level labels, has garnered significant attention due to its cost-effectiveness. The previous methods mainly strengthen the inter-class differences to avoid class semantic…

计算机视觉与模式识别 · 计算机科学 2025-04-08 Wangyu Wu , Xianglin Qiu , Siqi Song , Xiaowei Huang , Fei Ma , Jimin Xiao

Text recognition methods are gaining rapid development. Some advanced techniques, e.g., powerful modules, language models, and un- and semi-supervised learning schemes, consecutively push the performance on public benchmarks forward.…

计算机视觉与模式识别 · 计算机科学 2024-01-01 Ziyin Zhang , Ning Lu , Minghui Liao , Yongshuai Huang , Cheng Li , Min Wang , Wei Peng

Real-world data often exhibit long-tailed distributions with numerous noisy labels, substantially degrading the performance of deep models. While prior research has made progress in addressing this combined challenge, it overlooks the…

计算机视觉与模式识别 · 计算机科学 2026-04-28 Mengke Li , Haiquan Ling , Yiqun Zhang , Yang Lu , Hui Huang

Weakly-supervised text classification trains a classifier using the label name of each target class as the only supervision, which largely reduces human annotation efforts. Most existing methods first use the label names as static…

计算与语言 · 计算机科学 2023-10-23 Yunyi Zhang , Minhao Jiang , Yu Meng , Yu Zhang , Jiawei Han

Weakly-Supervised Semantic Segmentation (WSSS) using image-level labels typically utilizes Class Activation Map (CAM) to generate the pseudo labels. Limited by the local structure perception of CNN, CAM usually cannot identify the integral…

计算机视觉与模式识别 · 计算机科学 2023-03-03 Lixiang Ru , Heliang Zheng , Yibing Zhan , Bo Du

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
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