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OptaPlanner stopped active development in 2023. But it continues open source as Timefold Solver: https://xitter.cf/t.co/nMFR1bkWMH

Joined March 2011
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OptaPlanner stopped active development in 2023. But it continues open source as Timefold Solver: solver.timefold.ai The old website is now hosted here to help legacy users: optaplanner.io See the history for more information: optaplanner.io/the-history-o…
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OptaPlanner is the most popular open source Constraint Solver in Maven Central (the 98 TerraByte Java and Kotlin repository) according to MvnRepository: mvnrepository.com/open-sourc…
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Solve a Vehicle Routing Problem with OptaPlanner to reduce driving time by 25%. youtube.com/watch?v=3Bgt4xC4…
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Feedback from a user about CS: "I had to convert around 30 rules written in DRL to ConstraintStreams. After struggling at the beginning I started to like it more and more. At the end I really liked it. Thanks a lot for this awesome work!" Migration guide: optaplanner.org/download/upg…
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OptaPlanner retweeted
We'll publish the Devoxx Belgium schedule later this week. Basically @OptaPlanner will generate the schedule based on the received speakers availability and other soft/hard constraints we have defined. More details in this related Devoxx talk... youtu.be/GnnMHkY6vKk
Watch the latest episode of #CommunityCentral, where @dupliaka explains the power and benefits of @optaplanner youtu.be/A-TyjsHJTNM
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How hard can it be to write a program to solve a simple lesson scheduling problem? Harder than you think. Watch @dupliaka and me try it with a Greedy algorithm, a Brute Force algorithm and an advanced Metaheuristic at @DevoxxPL. Full video: youtube.com/watch?v=ZEOf_GCd…
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Video of my #DevoxxUK talk on Artificial Intelligence planning with @OptaPlanner (open source, Apache License, java). It includes Live Coding, a scheduling puzzle and the minimal number of atoms in the known universe. youtube.com/watch?v=l7gmOABz…
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An interesting article on how to optimize scheduling tasks of different durations and requiring different skills with #OptaPlanner: devapo.io/blog/optaplanner-h…
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Going to @devnexus in Atlanta next week? Don't miss Jason Porter's (@lightguardjp) talk about AI planning and schedule optimization with @OptaPlanner. devnexus.org/presentations/7…
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OptaPlanner made it on @baeldung 's #AI in @Java list. Is planning optimization (vehicle routing, employee rostering, maintenance scheduling, ...) going mainstream? baeldung.com/java-ai
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Do you want to host your @OptaPlanner application in the cloud? Just import the Git url in @OpenShift (open source container platform build on Kubernetes). This already works for all OptaPlanner's use case quickstarts. Give it a try. youtube.com/watch?v=kFoaf696…
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Order picking in supermarkets and warehouses: the optimal routes for carts and trolleys to collect shopping list orders. Video: youtube.com/watch?v=784Au4Pj…
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OptaPlanner does not depend on #Log4J. It depends on SLF4J (the simple logging facade), so it brings in no actual logging implementation. The OptaPlanner examples/quickstarts typically use Logback as the logging impl. SLF4J/Logback has no known CVEs. None of them use Log4J.
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For full clarity: One quickstart does have log4j-api and its slf4j bridge in their dependency tree transitively, but neither of these jars are vulnerable to Log4jShell, because they don't contain the Log4J implementation. So it's all safe.
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Get started quickly testing your constraints in OptaPlanner. Start a basic test in about five minutes by utilizing the information in this KIE Drop. youtu.be/I3J7jY3xZkw
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Replying to @GeoffreyDeSmet
Only schools. At the start of school year/semester, each school requested swimming lanes for all classes. Manual planning could no longer fulfill all requests. Optaplanner solution got swim lane occupation down to 60~70%.
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Artificial Intelligence with #Quarkus and #OptaPlanner for @DevoxxUA To assign 400 lessons to 400 slots (40 timeslots across 10 rooms) there are 10^1080 combinations. A 99% improvement is a rounding error. youtu.be/HVDPxebpSvg?t=247 #orms #ai
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OptaPlanner retweeted
Got an organizational problem, with constraints that can’t budge? #OptaPlanner uses #AI and algorithms to find the best solution to your challenge. #RedHat guest @donato_m tells us all the ways OptaPlanner can be utilized in this episode of #DeployFriday bit.ly/3DHxDhM
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