Information Technology Reference
In-Depth Information
9.3
Carrot
Carrot is a document clustering workbench. It is freely available.
2
It can handle
text data from a broad range of input sources, including the Internet, Google, and
customized collections in XML. Carrot provides very powerful clustering functions
and visualizes the clustering results in a treemap-like visualization called a Foam
Tree visualization along with a few other views (See Fig.
9.9
). The prominent
clusters are major clusters.
9.4
Power Grid Analysis
Monitoring the nation's electrical power grids is a labor-intensive operation that
requires constant human attention to assess real-time telemetered data. The pre-
vailing map-based or electric-circuit-based graphics display technology adopted by
the power grid industry is mostly designed for data presentation purposes. The
technology relies heavily on the operators to make real-time decisions based on
their experience. Simple human negligence errors could potentially bring down the
entire power grid in minutes and cause major disturbance to the community.
Fig. 9.9
Carrot's visualizations of clusters of text documents.
Top right
: Aduna cluster map
visualization;
lower middle
: circles visualization;
lower right
: Foam Tree visualization
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