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Decision Optimization CPLEX & For Watson Studio

Showing 101

OPL language enhancements : cannot slice with nested constraints on subTuples

I've been a happy user of OPL language, which has lots of wonderful features. However, there is one remaining recurrent issue in data modeling, which prevents some intuitive modeling. This is called "cannot slice with nested constraints on subTupl...
over 1 year ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 1 Future consideration

Postpone the end of support for IBM DOCPLEX Cloud

It is currently planned an end of support for IBM Optimization center in september 2020. Given the global crisis related to COVID 19 Pandemia, our development team are understaffed and there is a risk not to be ready by September 2020. Could we ex...

Consistent handling for exportModel(), writeMIPStarts() , etc

The handling where methods like e.g. exportModel() and writeMIPStarts() is not consistent and not intuitive.In case no absolute path is specifies, exportModel() always writes the file parallel to the mod-file. Whereas writeMIPStarts(), while sta...
over 1 year ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 1 Future consideration

Add TDNoOverlap constraint type to CP Optimizer

The TDNoOverlap constraint type is presented in chapter 7 of the Ph.D. thesis "A Constraint Programming Approach for the Time Dependent Traveling Salesman Problem", by Penelope Aguiar-Melgarejo https://hal.archives-ouvertes.fr/hal-01514369/documen...
about 2 years ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 0 Future consideration

Pyomo integration

No description provided
about 2 years ago in Decision Optimization CPLEX & For Watson Studio / Decision Optimization for Watson Studio 0 Planned for future release

Dynamic stopping criterion - An effective way to interrupt the optimal solution search for MILP

Please, see the attached document-

Automatic sync between notebook and Model Builder Python code

Avoid the frequent and confusing reinitialize of the Model Builder Python code and the source notebook by automatically updating the Model Builder Python code from the notebook.

OPL Lazy Constraint Pool

At http://www-01.ibm.com/support/docview.wss?uid=swg21681643, it is indicated that it is not possible to add lazy constraints in OPL Script. I know OPL is not a programming language, but it is quite important to be able to add lazy constraints in ...
over 2 years ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 1 Future consideration

sin function in OPL

tuple breakpoint // y=f(x) { float x; float y; } sorted { breakpoint } breakpoints={<i,exp(2*sin(i))> | i in 70..135}; I am trying to code this while because of no sin function in OPL, I am not able to code this on OPL.
over 2 years ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 0 Future consideration

Bring back the refresh-from-notebook button

In past versions of DO4DSX, there was something like 'refresh from notebook' button in the 'Run Model' tab of the Model Builder.Since the last few releases, that refresh link disappeared. Now I need to reinitialize the model, select the right note...