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Detection and Delineation of Events and Sub-Events in Social Networks
We define and solve the problem of event detection and delineation as a
task of identifying events and decomposing them to their major
sub-events, with a description and a timeline. We propose DeLi, an
algorithm that focuses on providing such an understanding of events and
sub-events. DeLi, to the best of our knowledge, is the first method that
addresses the problem in a generic stream of text, and in an online
fashion. Extensive evaluation on social streaming data demonstrates
that, by combining the structure of a social network with content
attributes, our method outperforms the state-of-the-art techniques