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https://issues.apache.org/jira/browse/MATH-1026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13775457#comment-13775457
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Evan Ward commented on MATH-1026:
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1. I found some more questions in the main code:
GaussNewtonOptimizer.java:47: move the Decomposition enum/interface to
linear package and expand options? It allows easy substitution of decomposition
algorithms. It would be nice to include Cholesky and SVD.
AbstractEvaluation.java:15: cache covariances, sigmas, RMS, cost? I'm leaning
towards recompute when needed.
LeastSquaresProblemImpl.java:95: Should UnweightedEvaluation use lazy
evaluation of the model? I'm leaning towards no.
LeastSquaresFactory.java:156: more efficient implementation using a
DiagonallyWeightedEvaluation
LeastSquaresFactory.java:246: Is there a way to get an array from a RealVector
without copying? This is a moot point since new implementations and users that
care about speed should use MultivariateJacobianFunction.
LeastSquaresOptimizer.java:26: Rename Optimum to Solution? I like language of
an Optimizer producing an Optimum.
> Separate Optimization Problem from Algorithm
> --------------------------------------------
>
> Key: MATH-1026
> URL: https://issues.apache.org/jira/browse/MATH-1026
> Project: Commons Math
> Issue Type: Improvement
> Reporter: Evan Ward
> Attachments: opt.tar.gz, opt.tar.gz
>
>
> See discussion on the mailing list starting with:
> http://www.mail-archive.com/[email protected]/msg39681.html
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