Matthias Boehm created SYSTEMML-2408:
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Summary: Invalid empty input handling on fused mmchain XtXvy w/
minus
Key: SYSTEMML-2408
URL: https://issues.apache.org/jira/browse/SYSTEMML-2408
Project: SystemML
Issue Type: Task
Reporter: Matthias Boehm
We compile a single fused mmchain operator of type XtXvy but this
implementation did not properly handle empty right hand side vectors (here
combined_weights) in case of minus.
{code}
residuals = local_X %*% combined_weights - X[,1]
res_A = t(local_X) %*% residuals
{code}
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