Gilles created MATH-911: --------------------------- Summary: Remove usage of "DerivativeStructure" in the "optimization" package Key: MATH-911 URL: https://issues.apache.org/jira/browse/MATH-911 Project: Commons Math Issue Type: Task Reporter: Gilles Priority: Minor Fix For: 3.1
The "DerivativeStructure" class is not the proper interface towards user applications that deal with optimization problems. Recent changes implies copying between e.g. the user's representation of a Jacobian and the "DerviativeStructure" representation of the same data. And, actually, the current implementation of "AbstractLeastSquaresOptimizer" copies back the "DerviativeStructure" representation into a "double[][]" for internal use. [~kberlin] pointed out the potential storage inefficiencies in large-scale problems. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira