Download User Manual - Network Workbench

The result is a directed network of paper citations in the Data Manager. Each paper node has two citation counts.
The local citation count (LCC) indicates how often a paper was cited by papers in the set. The global citation count
(GCC) equals the times cited (TC) value in the original ISI file. Paper references have no GCC value, except for
references that are also ISI records. Currently, the NWB Tool sets the GCC of references to -1 (except for references
that are not also ISI records). This is useful to prune the network to contain only the original ISI records.
To view the complete network, select the network and run ‘Visualization > GUESS’ and wait until the network is
visible and centered. Layout the network, e.g., using the Generalized Expectation-Maximization (GEM) algorithm
using ‘GUESS: Layout > GEM’. Pack the network via ‘GUESS: Layout > Bin Pack’. To change the background
color use ‘GUESS: Display > Background Color’. To size and color code nodes, select the ‘Interpreter’ tab at the
bottom, left-hand corner of the GUESS window, and enter the command lines:
> resizeLinear(globalcitationcount,1,50)
> colorize(globalcitationcount,gray,black)
> for e in g.edges:
...
e.color="127,193,65,255"
#
...
#
enter a tab after the three dots
hit Enter again
Note: The Interpreter tab will have ‘>>>’ as a prompt for these commands. It is not necessary to type ‘>” at the
beginning of the line. You should type each line individually and hit enter to submit the commands to the
Interpreter. For more information, refer to the GUESS tutorial at
http://nwb.slis.indiana.edu/Docs/GettingStartedGUESSNWB.pdf.
This way, nodes are linearly size and color coded by their GCC, and edges are green as shown in Figure 7.13 (left).
Any field within the network can be substituted to code the nodes. To view the available fields, open the
Information Window (‘Display > Information Window’) and mouse over a node. Also note that each ISI paper
record in the network has a dandelion shaped set of references.
The GUESS interface supports pan and zoom, node selection, and details on demand, see GUESS tutorial. For
example, the node that connects the Barabási-Vespignani network in the upper left to Garfield’s network in the
lower left is Price, 1986, Little Science, Big Science. The network on the right is centered on Wasserman’s works.
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