IBM Data and AI Ideas Portal for Customers


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Decision Optimization CPLEX & For Watson Studio

Showing 103

have the latest DOcplex package pre-installed

Hi, the docplex packages in python 2.7 or 3.5 are out dated. I find out when i tried the latest tutorial of DOCPLEX in DSX would be great that IBM package are up-to-date
about 7 years ago in Decision Optimization CPLEX & For Watson Studio 0 Functionality already exists

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.
over 5 years ago in Decision Optimization CPLEX & For Watson Studio / Decision Optimization for Watson Studio 1 Not under consideration

CPO Cumul function enhancement

Our COLA project Optimisation model concerns cyclic scheduling (an object is to be built every constant X amount of time) using cumul functions. Today we need to create intervals for every object to be build in order to calculate cumul functions f...
about 4 years ago in Decision Optimization CPLEX & For Watson Studio 0 Not under consideration

CPO enhancement requests : cumul and noOverlap functions should (optionally) take intensity into account

CPO enhancement requests : cumul and noOverlap functions should (optionally) take intensity into account
about 4 years ago in Decision Optimization CPLEX & For Watson Studio 0 Not under consideration

Remove constand offset variable if it equals zero

Exporting an LP-file creates a fixed variable representing a constant offset. For many users, this is often zero, so it shuld be optional or not appearing if the offset is zero. cf. https://www.ibm.com/developerworks/community/forums/html/topic?id...
about 4 years ago in Decision Optimization CPLEX & For Watson Studio 0 Not under consideration

Dump Data into file with Setting

Being able to export the external data of a model to a .dat file with one click.I suggest an option in the .ops under language/Run.The best would be to right click on the .dat file (with the connection to file, DB or Excel) and have an export opti...
about 4 years ago in Decision Optimization CPLEX & For Watson Studio 0 Not under consideration

Implementation of iif indicator constraint in C API

We would like to be able to implement if-and-only-if indicator constraints in the C API.
about 4 years ago in Decision Optimization CPLEX & For Watson Studio 0 Planned for future release

Resolve race condition in CP optimizer engine

We've run into what seems to be a race condition in the cp optimizer engine with multiple workers. The issue occurs when a worker finds the initial solution right around the time limit. In this case, the engine believes that it timed out, but it a...
about 4 years ago in Decision Optimization CPLEX & For Watson Studio 0 Not under consideration

Time to Best

I want to put your attention on the optimization concept called "time to best" (ttb), i.e. the time needed by an optimization procedure to find the best solution regardless of the total time needed by its complete execution. Anyone working in the ...
about 4 years ago in Decision Optimization CPLEX & For Watson Studio 0 Not under consideration

Implement piecewise linear features in Matlab API.

As for all the other APIs, it would be great to add to be able to describe PWLs with the new features introduced from 12.7.0, also in Matlab. The procedure to write several PWLs can become quite cumbersome for a large amount of constraints.
about 4 years ago in Decision Optimization CPLEX & For Watson Studio 0 Not under consideration

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