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bin updated for OSCON 2011 Demo instructions Jul 25, 2011
build updated for OSCON 2011 Demo instructions Jul 25, 2011
data added genomic adapter, along with dna samples for hippo and polar bea… Nov 8, 2010
docs added OSCON 2011 Demo Doc Jul 25, 2011
lib added license to all files, updated hbase to cd3u0 Jul 20, 2011
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.classpath updated for OSCON 2011 Demo instructions Jul 25, 2011
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build.xml adding build.xml file Nov 6, 2010
hbase.txt second test commit of Lumberyard Oct 27, 2010

README

Lumberyard is iSAX indexing stored in HBase for persistent and scalable index storage.

Lumberyard is based on the paper: http://www.cs.ucr.edu/~eamonn/iSAX.pdf

The jmotif project provides some support classes for Lumberyard: http://code.google.com/p/jmotif/

For more info on iSAX in the jmotif project: http://code.google.com/p/jmotif/wiki/iSAXJavaPrimer

Lumberyard is licensed ASF 2.0



State of Code

- approximate search works

- kNN and exact search are currently broken for iSAX indexes in jmotif's implementation. Therefore Lumberyard does not currently have them, either. (to be fair, we're mostly interested in appox search with Lumberyard.)

- Indexing only works as a serial process currently. I've yet to dig into the best way to update multiple rows at once in hbase. (locking is a tricky performance issue)



Notes

7/20/2011

- rebuilt to use the hadoop-core (20.2) and hbase (0.90) jars from CDH3u0
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