Machine intelligence for health information: Capturing concepts and trends in social media via query expansion

Xing Yu Su*, Hanna Suominen, Leif Hanlen

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    3 Citations (Scopus)

    Abstract

    Introduction. We aim to improve retrieval of health information from Twitter. Background. The popularity of social media and micro-blogs has emphasised their potential for knowledge discovery and trend building. However, capturing and relating concepts in these short-spoken and lexically extensive sources of information requires search engines with increasing intelligence. Methods. Our approach uses query expansion techniques to associate query terms with the most similar Twitter terms to capture trends in the gamut of information. Results. We demonstrated the value, defined as improved precision, of our search engine by considering three search tasks and two independent annotators. We also showed the stability of the engine with an increasing number of tweets; this is crucial as large data sets are needed for capturing trends with high confidence. These results encourage us to continue developing the engine for discovering trends in health information available at Twitter.

    Original languageEnglish
    Title of host publicationHealth Informatics
    Subtitle of host publicationThe Transformative Power of Innovation - Selected Papers from the 19th Australian National Health Informatics Conference, HIC 2011
    PublisherIOS Press
    Pages150-157
    Number of pages8
    ISBN (Print)9781607507901
    DOIs
    Publication statusPublished - 2011
    Event19th Australian National Health Informatics Conference, HIC 2011 - Brisbane, QLD, Australia
    Duration: 1 Aug 20115 Aug 2011

    Publication series

    NameStudies in Health Technology and Informatics
    Volume168
    ISSN (Print)0926-9630
    ISSN (Electronic)1879-8365

    Conference

    Conference19th Australian National Health Informatics Conference, HIC 2011
    Country/TerritoryAustralia
    CityBrisbane, QLD
    Period1/08/115/08/11

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