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Posted to dev@mahout.apache.org by "Suminda Dharmasena (JIRA)" <ji...@apache.org> on 2014/11/22 06:03:33 UTC

[jira] [Created] (MAHOUT-1628) Propagation of Updates in DF

Suminda Dharmasena created MAHOUT-1628:
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             Summary: Propagation of Updates in DF
                 Key: MAHOUT-1628
                 URL: https://issues.apache.org/jira/browse/MAHOUT-1628
             Project: Mahout
          Issue Type: New Feature
            Reporter: Suminda Dharmasena


Given data frame :

C = A + B

If some cells in A or B are updated:
1) calculate only when C is used using the latest values in A and B
2) when A or B is updated then propagate changes to C

You can use different operator for = in the above cases  



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