I need to process graphs in GraphML format.
See:
http://lists.xml.org/archives/xml-dev/200401/msg00505.html
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Cheers,
Dimitre Novatchev
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Truly great madness cannot be achieved without significant intelligence.
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To invent, you need a good imagination and a pile of junk
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Never fight an inanimate object
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On Wed, Mar 19, 2008 at 9:49 PM, Ken Tam <kentam(_at_)proteustech(_dot_)com>
wrote:
Hi all,
I need to process graphs in GraphML format. For example,
given the following graph:
A
/ | \
B C D
/ \
E F
/ \ / \
G H I
/ \
J K
will be represented in GraphML as:
<?xml version="1.0" encoding="UTF-8"?>
<graphml xmlns="http://graphml.graphdrawing.org/xmlns";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://graphml.graphdrawing.org/xmlns
http://graphml.graphdrawing.org/xmlns/1.0/graphml.xsd";>
<graph id="G" edgedefault="directed">
<node id="A"/>
<node id="B"/>
<node id="C"/>
<node id="D"/>
<node id="E"/>
<node id="F"/>
<node id="G"/>
<node id="H"/>
<node id="I"/>
<node id="J"/>
<node id="K"/>
<edge source="A" target="B"/>
<edge source="A" target="C"/>
<edge source="A" target="D"/>
<edge source="B" target="E"/>
<edge source="B" target="F"/>
<edge source="E" target="G"/>
<edge source="E" target="H"/>
<edge source="F" target="H"/>
<edge source="F" target="I"/>
<edge source="H" target="J"/>
<edge source="H" target="K"/>
</graph>
</graphml>
One sample process is to find all paths starting from "B" passing through
"H" ending in "K". The results are:
B->E->H->K
B->F->H->K
Can XSL/XPATH be used to find the paths? or a transformation needs to be
done first from graph to tree with ID and IDREF before applying XPATH axis
expressions. This is just a simple example and the real graphs contain many
shared paths. Thus, a tree representation will be very large with many
duplicated branches.
Thanks,
Ken
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