Unsupervised Content-Based Characterization and Anomaly Detection of Online Community Dynamics

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dc.contributor.authorShah, Danelle
dc.contributor.authorHurley, Michael
dc.contributor.authorLiu, Jessamyn
dc.contributor.authorDaggett, Matthew
dc.date.accessioned2019-01-03T00:02:20Z
dc.date.available2019-01-03T00:02:20Z
dc.date.issued2019-01-08
dc.description.abstractThe structure and behavior of human networks have been investigated and quantitatively modeled by modern social scientists for decades, however the scope of these efforts is often constrained by the labor-intensive curation processes that are required to collect, organize, and analyze network data. The surge in online social media in recent years provides a new source of dynamic, semi-structured data of digital human networks, many of which embody attributes of real-world networks. In this paper we leverage the Reddit social media platform to study social communities whose dynamics indicate they may have experienced a disturbance event. We describe an unsupervised approach to analyzing natural language content for quantifying community similarity, monitoring temporal changes, and detecting anomalies indicative of disturbance events. We demonstrate how this method is able to detect anomalies in a spectrum of Reddit communities and discuss its applicability to unsupervised event detection for a broader class of social media use cases.
dc.format.extent10 pages
dc.identifier.doi10.24251/HICSS.2019.274
dc.identifier.isbn978-0-9981331-2-6
dc.identifier.urihttp://hdl.handle.net/10125/59665
dc.language.isoeng
dc.relation.ispartofProceedings of the 52nd Hawaii International Conference on System Sciences
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectData Analytics, Data Mining and Machine Learning for Social Media
dc.subjectDigital and Social Media
dc.subjectsocial networks, anomaly detection, event detection, network characterization
dc.titleUnsupervised Content-Based Characterization and Anomaly Detection of Online Community Dynamics
dc.typeConference Paper
dc.type.dcmiText

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