Authors:
Randi Karlsen
1
;
José Enrique Borrás Morell
1
and
Vicente Traver Salcedo
2
Affiliations:
1
UiT The Arctic University of Norway, Norway
;
2
Universidad Politècnica de València, Spain
Keyword(s):
Consumer Health Information, Information Retrieval, Social Networks, YouTube, Health Video Retrieval, Ranking Evaluation, Diabetes, Personal Health.
Related
Ontology
Subjects/Areas/Topics:
Biomedical Engineering
;
Cloud Computing
;
e-Health
;
Health Information Systems
;
Platforms and Applications
Abstract:
While health consumers are increasingly searching health information on the Internet, information overload is
a serious obstacle for finding relevant and good-quality information among inaccurate, obsolete or incorrect
health information. While a lot of information exists, information from credible sources, such as hospitals and
health organisations, may be difficult to find. The aim of this study is to analyse ranking of diabetes health
videos on YouTube over a time period, to learn whether videos from credible sources are ranked sufficiently
high to be reachable to users. 19 diabetes-related queries were issued to YouTube each day over a 1.5-month
period, and in total 2584 videos from credible sources was detected and their ranking position tracked. We
found that only a small number of the tracked videos were in practice available to the user, as most videos
were given a persistent low ranking. Also, since ranking is fairly stable, users cannot expect to find many new
videos (from
credible sources) when issuing a query multiple times. We conclude that new tools are needed
that enable health video retrieval based on requirements concerning not only relevance and popularity, but also
credibility of the sources and trustworthiness of the videos.
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