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Decision Optimization CPLEX & For Watson Studio

Showing 93

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 3 years ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 1 Future consideration

Produce log during OPL Extract phase similar to Solve Engine Log

Many OPL real-world optimisations spend a large proportion of the overall solve time performing extraction/generation and there is no log of what is happening during this time. There should be a log produced during Extract similar to the Engine Lo...
almost 2 years ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 1 Future consideration

Automatic column generation

have an API or/and OPL command to do a Column generation on any problem.
about 2 years ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration

CPLEX object create by oplrun and concert shall be equal

the CPLEX object created by an OPL model is not the same as tyhe CPLEX object created with concert technology.It creates limitation and complexity that prevent people to use OPL in many cases, such advance algorithms with call backs manual cuts......
about 2 years ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration

Extend CPLEX for Matlab to support the Matlab Compiler

CPLEX for MATLAB is an extension to IBM® ILOG® CPLEX Optimizers that allows a user to define optimization problems and solve them within MATLAB's development environment. However, an optimisation module developped with CPLEX for MATLAB and compile...
about 2 years ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration

Cplex.solveFixed() for OPL Script

Is there an equivalent of Cplex.SolveFixed() for OPL Script ? I'm looking for dual costs of a MILP. So I'd like to 1) solve it to get the solution. 2) solve the corresponding LP with fixed integer variables 3) get dual costs I don't know in advanc...
about 2 years ago in Decision Optimization CPLEX & For Watson Studio 0 Not under 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 4 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 ...

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 ...
11 months ago in Decision Optimization CPLEX & For Watson Studio / CPLEX Optimization Studio 0 Future consideration

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... ...
about 2 years ago in Decision Optimization CPLEX & For Watson Studio 0 Future consideration