Gianmarco De Francisci Morales created GIRAPH-191:
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Summary: Random Walk with Restart
Key: GIRAPH-191
URL: https://issues.apache.org/jira/browse/GIRAPH-191
Project: Giraph
Issue Type: New Feature
Reporter: Gianmarco De Francisci Morales
Implementing RWR on Giraph should be a very simple modification of the
SimplePageRankVertex code.
{code}
if ( myID == sourceID )
DoubleWritable vertexValue = new DoubleWritable((0.15f + 0.85f * sum);
else
DoubleWritable vertexValue = new DoubleWritable(0.85f * sum);
{code}
It would be nice to make it as configurable as possible by using parametric
damping factors, preference vectors, strongly preferential, etc...
More or less along these lines:
http://law.dsi.unimi.it/software/docs/it/unimi/dsi/law/rank/PageRank.html
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