We are very happy to announce that CPLEX Optimization Studio 12.10 was released last Friday, with callbacks in CP Optimizer, branching context in the new CPLEX Generic callback framework, and much performance improvements.
Decision Optimization news
Using machine learning in CPLEX 12.10
CPLEX is proud to announce that in the newest release, version 12.10, for the first time, a commercial Mathematical Optimization solver implements a Machine-Learning-based classifier to make automatic decisions over some algorithmic choices. Using this classifier, the solution time decreases by 28% for the whole validation set and 49% for models in the validation set that take at least 1 second to solve.
Slides from INFORMS 2019 are available
How do you use the CPLEX and CP Optimizer engines?
Come meet the CPLEX team at the INFORMS Annual Meeting in Seattle
CPLEX and CP Optimizer now available on IBM Cloud
CPLEX Optimization Studio is free for students and academics!
Students and academics can get CPLEX Optimization Studio free of charge. Here are links to download it, and how to get support about it.
CPLEX Optimization Studio 12.9 is available
COS 12.9 is now available for commercial users, academics and students.
Multiobjective optimization for LP and MIP in CPLEX
The upcoming CPLEX release features multiobjective optimization. Available for LPs and MIPs, it allows to specify combinations of hierarchical and blended objectives, and gives you an optimal solution for your instance. Thanks to tolerances on each sub-objective, you can evaluate the impact that each objective has on the others. And the weights on each objective allow to scale each objective, either for trade-off exploration, or to help numerical stability.
Bike sharing system optimization
The operator of one the world’s largest bike-sharing systems wanted a smarter way to distribute 13,000 bicycles across more than 800 stations and enable tens of thousands of journeys per day.

