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Decision Optimization CPLEX & For Watson Studio

Showing 99

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

Have DO for DSX not only in DSXL but also in Watson Studio

DO for DSX help DSXL customers deploy optimization. With Watson Studio we have less flexibility to do that. We should have that available to ease adoption of Decision Optimization by Watson Studio customers
over 3 years ago in Decision Optimization CPLEX & For Watson Studio 0 Functionality already exists

Support user-defined Python module

I would like to maintain a set of Python functions and classes in a separate model/script, then do an import from that module in a notebook and DO4DSX model.Use cases:* I want to move complex function definitions out of my notebook. The functions ...

OPL function to assign a initial value or fix te value to a variable

The only way to do a warm start is by using OPL script.it should be possible in the variable declaration to give a start value.the same way if you want to fix a variable to a value you need to 2 lines of code to fix the upper and lower bounds... O...
about 1 year ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration

graphical dash board of the search console/log

have graph to represent the node through-put, number of active node, memory consumed, CPUs usage
about 1 year ago in Decision Optimization CPLEX & For Watson Studio 0 Not under consideration

OPL csv import/export

Generating .dat is not that elegant.Importing/exporting from Excel is slow.Csv format is often used for other applications as well.
about 1 year ago in Decision Optimization CPLEX & For Watson Studio 0 Delivered

Dantzig-Wolf-decomposition with CPLEX

Extend the CPLEX-API to let reformulate a problem by CPLEX, notably a problem - which could be solved efficiently by a DW-decomposition. It should be reformulated by CPLEX to a problem (its dual) which could be solved by CPLEX's benders algorithm....
about 1 year ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration

CPLEX: Make adding mulitple objectives consistent with adding one objective

In the Java API for CPLEX (presumably similar in other APIs), it is possible to create an objective and add it to a model in one function call, using overloads of IloCplexModeler.addMinimize() and .addMaximize() that take an IloNumExpr argument. D...
about 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...
almost 2 years ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 0 Future consideration

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

Please, see the attached document-