Yizhou Zhang
Yizhou Zhang
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Hierarchical Gaussian Mixture based Task Generative Model for Robust Meta-Learning
Meta-learning enables quick adaptation of machine learning models to new tasks with limited data. While tasks could come from varying …
Yizhou Zhang
,
Jingchao Ni
,
Wei Cheng
,
Zhengzhang Chen
,
Liang Tong
,
Hiafeng Chen
,
Yan Liu
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Capturing Cross-Platform Interaction for Identifying Coordinated Accounts of Misinformation Campaigns
Recent years have witnessed the increasing abuse of coordinated accounts on multiple social media platforms. Such accounts are usually …
Yizhou Zhang
,
Karishma Sharma
,
Yan Liu
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Improving Weakly Supervised Scene Graph Parsing through Object Grounding
Weakly supervised scene graph parsing, which learns structured image representations without annotated correspondences between graph …
Yizhou Zhang
,
Zhaoheng Zheng
,
Ram Nevatia
,
Yan Liu
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Counterfactual Neural Temporal Point Process for Estimating Causal Influence of Misinformation on Social Media
Recent years have witnessed the rise of misinformation campaigns that spread specific narratives on social media to manipulate public …
Yizhou Zhang
,
Defu Cao
,
Yan Liu
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COVID-19 Vaccine Misinformation Campaigns and Social Media Narratives
COVID-19 vaccine hesitancy has increased concerns about vaccine uptake required to overcome the pandemic and protect public health. A …
Karishma Sharma
,
Yizhou Zhang
,
Yan Liu
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VigDet: Knowledge Informed Neural Temporal Point Process for Coordination Detection on Social Media
Recent years have witnessed an increasing use of coordinated accounts on social media, operated by misinformation campaigns to …
Yizhou Zhang
,
Karishma Sharma
,
Yan Liu
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Identifying Coordinated Accounts on Social Media through Hidden Influence and Group Behaviours
Disinformation campaigns on social media, involving coordinated activities from malicious accounts towards manipulating public opinion, …
Karishma Sharma
,
Yizhou Zhang
,
Emilio Ferrara
,
Yan Liu
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Active Domain Transfer on Network Embedding
Recent works show that end-to-end, (semi-) supervised network embedding models can generate satisfactory vectors to represent network …
Lichen Jin
,
Yizhou Zhang
,
Guojie Song
,
Yilun Jin
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DANE: Domain Adaptive Network Embedding
Recent works reveal that network embedding techniques enable many machine learning models to handle diverse downstream tasks on graph …
Yizhou Zhang
,
Guojie Song
,
Lun Du
,
Shuwen Yang
,
Yilun Jin
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Chinese Medical Concept Normalization by Using Text and Comorbidity Network Embedding
Chinese medical concept normalization, which maps non-standard medical concepts to standard expressions, is a NLP task with …
Yizhou Zhang
,
Xiaojun Ma
,
Guojie Song
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