About: Rumor Detection Based On Propagation Graph Neural Network With Attention Mechanism

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An Entity of Type : schema:ScholarlyArticle, within Data Space : covidontheweb.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Rumor Detection Based On Propagation Graph Neural Network With Attention Mechanism
Creator	Cao, M Xie, J Chen, D Pi, Z
Source	Elsevier; Medline; PMC
abstract	Rumors on social media have always been an important issue that seriously endangers social security. Researches on timely and effective detection of rumors have aroused lots of interest in both academia and industry. At present, most existing methods identify rumors based solely on the linguistic information without considering the temporal dynamics and propagation patterns. In this work, we aim to solve rumor detection task under the framework of representation learning. We first propose a novel way to construct the propagation graph by following the propagation structure (who replies to whom) of posts on Twitter. Then we propose a gated graph neural network based algorithm called PGNN, which can generate powerful representations for each node in the propagation graph. The proposed PGNN algorithm repeatedly updates node representations by exchanging information between the neighbor nodes via relation paths within a limited time steps. On this basis, we propose two models, namely GLO-PGNN (rumor detection model based on the global embedding with propagation graph neural network) and ENS-PGNN (rumor detection model based on the ensemble learning with propagation graph neural network). They respectively adopt different classification strategies for rumor detection task, and further improve the performance by including attention mechanism to dynamically adjust the weight of each node in the propagation graph. Experiments on a real-world Twitter dataset demonstrate that our proposed models achieve much better performance than state-of-the-art methods both on the rumor detection task and early detection task.
has issue date	2020-06-05(xsd:dateTime)
bibo:doi	10.1016/j.eswa.2020.113595
bibo:pmid	32565619
has license	no-cc
sha1sum (hex)	d5b066c9081a6300baa8cf9403bd58260658e7f9
schema:url	https://doi.org/10.1016/j.eswa.2020.113595
resource representing a document's title	Rumor Detection Based On Propagation Graph Neural Network With Attention Mechanism
has PubMed Central identifier	PMC7274137
has PubMed identifier	32565619
schema:publication	Expert Syst Appl
resource representing a document's body	covid:d5b066c9081a6300baa8cf9403bd58260658e7f9#body_text
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