Structural Patterns and Generative Models of Real-world Hypergraphs

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dc.contributor.authorDo, Manh Tuanko
dc.contributor.authorYoon, Se-eunko
dc.contributor.authorHooi, Bryanko
dc.contributor.authorShin, Kijungko
dc.date.accessioned2020-06-29T08:20:14Z-
dc.date.available2020-06-29T08:20:14Z-
dc.date.created2020-06-28-
dc.date.created2020-06-28-
dc.date.issued2020-08-24-
dc.identifier.citation26th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, KDD 2020-
dc.identifier.urihttp://hdl.handle.net/10203/274998-
dc.description.abstractGraphs have been utilized as a powerful tool to model pairwise relationships between people or objects. Such structure is a special type of a broader concept referred to as hypergraph, in which each hyperedge may consist of an arbitrary number of nodes, rather than just two. A large number of real-world datasets are of this form - for example, list of recipients of emails sent from an organization, users participating in a discussion thread or subject labels tagged in an online question. However, due to complex representations and lack of adequate tools, little attention has been paid to exploring the underlying patterns in these interactions. In this work, we empirically study a number of real-world hypergraph datasets across various domains. In order to enable thorough investigations, we introduce the multi-level decomposition method, which represents each hypergraph by a set of pairwise graphs. Each pairwise graph, which we refer to as a k-level decomposed graph, captures the interactions between pairs of subsets of k nodes. We empirically find that at each decomposition level, the investigated hypergraphs obey five structural properties. These properties serve as criteria for evaluating how realistic a hypergraph is, and establish a foundation for the hypergraph generation problem. We also propose a hypergraph generator that is remarkably simple but capable of fulfilling these evaluation metrics, which are hardly achieved by other baseline generator models.-
dc.languageEnglish-
dc.publisherAssociation for Computing Machinery-
dc.titleStructural Patterns and Generative Models of Real-world Hypergraphs-
dc.typeConference-
dc.type.rimsCONF-
dc.citation.publicationname26th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, KDD 2020-
dc.identifier.conferencecountryUS-
dc.identifier.conferencelocationVirtual-
dc.identifier.doi10.1145/3394486.3403060-
dc.contributor.localauthorShin, Kijung-
dc.contributor.nonIdAuthorDo, Manh Tuan-
dc.contributor.nonIdAuthorYoon, Se-eun-
dc.contributor.nonIdAuthorHooi, Bryan-
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