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Decision Optimization CPLEX & For Watson Studio

Showing 91 of 12630

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...
almost 2 years 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...
over 2 years ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 0 Future consideration

DOC-like row filters for table views in DO

Have the ability to create a set of filters on a table view that:a. As a set of filters that each can be added, edited and removed.b. Are persistent, i.e. do not disappear when switching views. c. Can be enabled/disabledd. Include logic like `cont...

Interface between CPLEX and .Net CORE 5 on LINUX

We are developing applications using .Net CORE 5. This is a great language to develop solution on either Windows or Linux. We have no issues using CPLEX with Windows as we have the cp_wrap_cpp_dotnet2010.dll running but we miss a Linux version of ...

Callbacks from CP for .Net languages like C#

Callbacks are available from CP using C++ or Java, but not if using the API from C# (or any .Net language). This seems to be very strange as the internal structures must be there inside the CP libraries etc in order to support the callbacks from C...
10 months ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 0 Future consideration

Enhance .NET API for maps

When attempting to use the reflection mechanism of OPL CPLEX API under .NET (version 12.9 but same problem seen in documentation of latest version), I stumble upon an error on my first implementation of a missing method "NbDim" for the map class "...
over 1 year ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 0 Future consideration

Allow initialisation using OPL of arrays within tuple sets

In OPL it is not possible to initialise an array which is within a set of tuples either through values or programmatically. An enhancement should be made to OPL to allow this. Consider: {string} Factors = {"a","b","c"}; tuple T_2 { key int i; int ...
over 1 year ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 0 Future consideration

Have atoi and itoa in OPL

Today in OPL, ftoi is quite useful to convert float to int.What would help is to do conversions between int and string in order to be able to process strings as inputs or compute inputs. What we miss is atoi and itoa
over 1 year ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration

Add Java perspective in the CPLEX Studio (IDE)

As in DOC, CPLEX studio should have a perspective with Java.In the install the IDE should be ready to use CPLEX, CPO, OPL and install the Java SDK....It would make so much sense to have everything ready in one IDE OPL Java (with cplex.jar, cp.jar....
over 1 year ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration

Have a line number in OPL out of bounds errors

int E[i in 1..2]=2; int n=3; dvar int x[1..2] in 0..10; subject to { E[2] >=x[3]; x[1]<=2; } execute { writeln("ok") ; } gives an error but without line number. This is easy but in bigger models, it takes a lot of time to spot line numbers.
over 1 year ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration