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OscaR stands for "Scala in OR (Operations Research)". It is a set of tools implemented in Scala to solve Optimization and Operations Research problems. Currently the content of OscaR is: - cp: a package to solve constraint programming problems - cbls: a package to solve problems with ... [More] constraint based local search - linprog: a package to write LP/MIP models with interfaces to glpk, lp_solve, gurobi and cplex - dfo: a package to solve derivative free optimization problems - des: a package to model discrete event simulation problems - visu: a package to build quickly visualizations for your optimization problem [Less]

OptaPlanner optimizes business resource usage. Every organization faces planning problems: provide products or services with a limited set of constrained resources (employees, assets, time and money). OptaPlanner optimizes such planning to do more business with less resources. OptaPlanner is a ... [More] lightweight, embeddable planning engine written in Java™. It helps normal Java™ programmers solve constraint satisfaction problems efficiently. Under the hood, it combines optimization heuristics and metaheuristics with very efficient score calculation. OptaPlanner is open source software, released under the Apache Software License. It is 100% pure Java™, runs on any JVM and is available in the Maven Central Repository too. [Less]