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Utilizing Complex Networks for Event Detection in Heterogeneous High-Volume News Streams

  • Iraklis MoutidisEmail author
  • Hywel T. P. Williams
Conference paper
Part of the Studies in Computational Intelligence book series (SCI, volume 881)

Abstract

Detecting important events in high volume news streams is an important task for a variety of purposes. The volume and rate of online news increases the need for automated event detection methods that can operate in real time. In this paper we develop a network-based approach that makes the working assumption that important news events always involve named entities (such as persons, locations and organizations) that are linked in news articles. Our approach uses natural language processing techniques to detect these entities in a stream of news articles and then creates a time-stamped series of networks in which the detected entities are linked by co-occurrence in articles and sentences. In this prototype, weighted node degree is tracked over time and change-point detection used to locate important events. Potential events are characterized and distinguished using community detection on KeyGraphs that relate named entities and informative noun-phrases from related articles. This methodology already produces promising results and will be extended in future to include a wider variety of complex network analysis techniques.

Keywords

Topic detection and tracking Network analysis Natural language processing Social media Topic modeling 

Notes

Acknowledgements

The authors acknowledge funding from a commercial entity, Adarga Ltd. (https://www.adarga.ai). The funder had no input or editorial influence over the manuscript.

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.University of ExeterExeterUK

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