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Unformatted text preview: ters onto a two dimensional surface and
ﬁnally maps the documents relative to the projected cluster centers. SPIRE offers
a scatter plot like projection as well as a three dimensional visualization. The
visualization tool SCI-Map (Small 1999) applies an iterative clustering approach
to create a network using, e.g., references of scientiﬁc publications. The tools
visualizes the structure by a map hierarchy with an increasing number of details.
One major problem of most existing visualization approaches is that they
create their output only by use of data inherent information, i.e. the distribution
of the documents in document space. User speciﬁc information can not be
integrated in order to obtain, e.g., an improved separation of the documents
with respect to user deﬁned criteria like keywords or phrases. Furthermore, the
possibilities for a user to interact with the system in order to navigate or search
are usually very limited, e.g., to boolean keyword searches and simple result
3.5 Further Application Areas...
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- Summer '11