dileepajayakody / semanticvectors

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PrincipalComponents gives all the same vectors for some queries. #39

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago
What steps will reproduce the problem?
1. Run ant compile-ext.
2. Build an index from the bible corpus.
3. Run java pitt.util.vectors.PrincipalComponents abraham 

What is the expected output? What do you see instead?

You'd expect to see a full 2d plot. Instead you see vectors on top of each 
other in the top left hand corner, or down the left hand side.

I suspect something to do with matrix degeneracy.

This bug is flaky and not reliably reproducible, due I believe to the random 
allocation of elemental vectors.

Original issue reported on code.google.com by widd...@google.com on 16 Jun 2011 at 3:15