Andrew Palumbo created MAHOUT-1813:
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Summary: Functional "apply" DSL for distributed and in-memory
matrices
Key: MAHOUT-1813
URL: https://issues.apache.org/jira/browse/MAHOUT-1813
Project: Mahout
Issue Type: New Feature
Affects Versions: 0.11.2
Reporter: Andrew Palumbo
Assignee: Andrew Palumbo
Fix For: 0.12.0
We have functional "Assign" for in-memory matrices, e.g.:
{code}
mxA := { x => x + 1 }
mxA ::= { x=> x * 2 }
{code}
However, we lack similar unary elementwise function capability with distributed
matrices, because distributed matrices are logically immutable.
The suggestion here is to use apply(func) to augment that capability for DRMs:
{code}
drmA(x => x + 1)
drmA(x => 2 * x)
{code}
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