EAN: 9783642281341

SPRINGERBRIEFS IN COMPUTER SCIENCE EVENT-DRIV...

The Web has become a rich source of personal information in the last few years. People twitter
blog  and chat online. Current feelings  experiences or latest news are posted. For instance 
first hints to disease outbreaks  customer preferences  or political changes could be
identified with this data. Surveillance or early warning systems enable such detection of
changes and support humans in getting information on changing situations. However  the variety
of data that could be considered for surveillance is immense  ranging from sensor-measured
values to collected counts and information extracted from natural language documents.Denecke's
objective is to introduce the multiple possibilities and facets of surveillance and its
applications. She first introduces the task of surveillance and provides an overview on
surveillance in various domains. Next  the various information sources that are available and
could already be used by surveillance systems are summarized. In the main part of the book  her
focus is on unstructured data as a source for surveillance. An overview on existing methods as
well as methods to be developed in order to process this kind of data with respect to
surveillance is presented. As an example application  she introduces disease surveillance using
Web 2.0  including corresponding methods and challenges to be addressed. The book closes with
remarks on new possibilities for surveillance gained by recent developments of the Internet and
mobile communication  and with an outline of future challenges.

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