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相关论文: Contrastive Domain Adaptation for Early Misinforma…

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In the real-world application of COVID-19 misinformation detection, a fundamental challenge is the lack of the labeled COVID data to enable supervised end-to-end training of the models, especially at the early stage of the pandemic. To…

计算与语言 · 计算机科学 2022-10-10 Huimin Zeng , Zhenrui Yue , Ziyi Kou , Lanyu Shang , Yang Zhang , Dong Wang

With emerging topics (e.g., COVID-19) on social media as a source for the spreading misinformation, overcoming the distributional shifts between the original training domain (i.e., source domain) and such target domains remains a…

计算与语言 · 计算机科学 2023-05-23 Zhenrui Yue , Huimin Zeng , Yang Zhang , Lanyu Shang , Dong Wang

In this work, the integration of two machine learning approaches, namely domain adaptation and explainable AI, is proposed to address these two issues of generalized detection and explainability. Firstly the Domain Adversarial Neural…

As growing usage of social media websites in the recent decades, the amount of news articles spreading online rapidly, resulting in an unprecedented scale of potentially fraudulent information. Although a plenty of studies have applied the…

机器学习 · 计算机科学 2023-04-21 Hao Chen , Peng Zheng , Xin Wang , Shu Hu , Bin Zhu , Jinrong Hu , Xi Wu , Siwei Lyu

Irrespective of the success of the deep learning-based mixed-domain transfer learning approach for solving various Natural Language Processing tasks, it does not lend a generalizable solution for detecting misinformation from COVID-19…

计算与语言 · 计算机科学 2021-11-01 Yuanzhi Chen , Mohammad Rashedul Hasan

Unsupervised Domain Adaptation (UDA) makes predictions for the target domain data while manual annotations are only available in the source domain. Previous methods minimize the domain discrepancy neglecting the class information, which may…

计算机视觉与模式识别 · 计算机科学 2019-04-12 Guoliang Kang , Lu Jiang , Yi Yang , Alexander G Hauptmann

Unsupervised Domain Adaptation (UDA) aims to align the labeled source distribution with the unlabeled target distribution to obtain domain invariant predictive models. However, the application of well-known UDA approaches does not…

计算机视觉与模式识别 · 计算机科学 2021-11-11 Ankit Singh

Massive rumors usually appear along with breaking news or trending topics, seriously hindering the truth. Existing rumor detection methods are mostly focused on the same domain, and thus have poor performance in cross-domain scenarios due…

社会与信息网络 · 计算机科学 2023-03-22 Hongyan Ran , Caiyan Jia

In this paper, we propose a simple model referred as Contradistinguisher (CTDR) for unsupervised domain adaptation whose objective is to jointly learn to contradistinguish on unlabeled target domain in a fully unsupervised manner along with…

机器学习 · 计算机科学 2020-06-12 Sourabh Balgi , Ambedkar Dukkipati

Recently, contrastive self-supervised learning has become a key component for learning visual representations across many computer vision tasks and benchmarks. However, contrastive learning in the context of domain adaptation remains…

计算机视觉与模式识别 · 计算机科学 2021-06-25 Mamatha Thota , Georgios Leontidis

Out-of-context news is a common type of misinformation on online media platforms. This involves posting a caption, alongside a mismatched news image. Existing out-of-context news detection models only consider the scenario where pre-labeled…

计算与语言 · 计算机科学 2024-08-09 Yimeng Gu , Mengqi Zhang , Ignacio Castro , Shu Wu , Gareth Tyson

In response to the need for rapid and accurate COVID-19 diagnosis during the global pandemic, we present a two-stage framework that leverages pseudo labels for domain adaptation to enhance the detection of COVID-19 from CT scans. By…

图像与视频处理 · 电气工程与系统科学 2024-03-19 Runtian Yuan , Qingqiu Li , Junlin Hou , Jilan Xu , Yuejie Zhang , Rui Feng , Hao Chen

An infodemic refers to an enormous amount of true information and misinformation disseminated during a disease outbreak. Detecting misinformation at the early stage of an infodemic is key to reduce its harm to public health. An early stage…

计算与语言 · 计算机科学 2026-05-29 Minjia Mao , Xiaohang Zhao , Xiao Fang

Domain adaptation aims to leverage a labeled source domain to learn a classifier for the unlabeled target domain with a different distribution. Previous methods mostly match the distribution between two domains by global or class alignment.…

计算机视觉与模式识别 · 计算机科学 2022-05-30 Mei Wang , Weihong Deng

COVID-19 related misinformation and fake news, coined an 'infodemic', has dramatically increased over the past few years. This misinformation exhibits concept drift, where the distribution of fake news changes over time, reducing…

机器学习 · 计算机科学 2022-05-23 Abhijit Suprem , Calton Pu

In this paper, we make two contributions to unsupervised domain adaptation (UDA) using the convolutional neural network (CNN). First, our approach transfers knowledge in all the convolutional layers through attention alignment. Most…

计算机视觉与模式识别 · 计算机科学 2018-08-14 Guoliang Kang , Liang Zheng , Yan Yan , Yi Yang

Domain adaptation (DA) aims to transfer knowledge from a label-rich source domain to a related but label-scarce target domain. The conventional DA strategy is to align the feature distributions of the two domains. Recently, increasing…

计算机视觉与模式识别 · 计算机科学 2022-03-08 Yixin Zhang , Junjie Li , Zilei Wang

In the absence of labeled target data, unsupervised domain adaptation approaches seek to align the marginal distributions of the source and target domains in order to train a classifier for the target. Unsupervised domain alignment…

计算机视觉与模式识别 · 计算机科学 2024-03-13 Sachin Chhabra , Hemanth Venkateswara , Baoxin Li

Large language models (LLMs) are increasingly being used for generating text in a variety of use cases, including journalistic news articles. Given the potential malicious nature in which these LLMs can be used to generate disinformation at…

计算与语言 · 计算机科学 2023-09-22 Amrita Bhattacharjee , Tharindu Kumarage , Raha Moraffah , Huan Liu

The pandemic of coronavirus disease 2019 (COVID-19) has lead to a global public health crisis spreading hundreds of countries. With the continuous growth of new infections, developing automated tools for COVID-19 identification with CT…

图像与视频处理 · 电气工程与系统科学 2020-09-17 Zhao Wang , Quande Liu , Qi Dou
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