or-tools
OptaPlanner
or-tools | OptaPlanner | |
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57 | 30 | |
10,446 | 138 | |
0.9% | 9.4% | |
9.9 | 7.4 | |
7 days ago | 18 days ago | |
C++ | Java | |
Apache License 2.0 | Apache License 2.0 |
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or-tools
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or-tools VS timefold-solver - a user suggested alternative
2 projects | 4 Jan 2024
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A* Tricks for Videogame Path Finding
Small NP-hard problems aren't actually that bad. You can usually formulate them as eg a integer programming problem or a SMT problem, and throw an off-the-shelf solver at them.
You only need to learn the solver once, and you can re-use it for all kinds of problems. (Assuming that your instances don't have to be solved with low latency. Eg only as part of your level generation process, or at most when loading a randomly generated level, but not every frame or so.)
https://developers.google.com/optimization has a decent collection of tools.
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Ask HN: Comment here about whatever you're passionate about at the moment
Just saw that it looks like an upcoming release of OR-Tools might include reified tables: https://github.com/google/or-tools/commit/94f3d9b46870e7ea04...
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[P] Advice needed for what tool/algorithm is appropriate
Google OR - Tried to represent a solution to be a 5 dimensional matrix with an hour granularity. Dimensions are stations, program, project manager, day and time. If matrix[station][program][project manager][day][time] = 1, then that set is assigned, otherwise not. The main issue encountered here is about time slots, as they are not necessarily on a per hour basis. We tried time slots to be in a 5-minute interval. However, constructing the constraints that would adhere to each programs duration was proven to be difficult.
- What software is used in the field these days?
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Sudoku solver
If you are just interested in getting a solution or for having a reference solver: There is a sudoku example in the OR-Tools package that uses constraint programming.
- Matrix / 2d Array Puzzle-Like Problem
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Linear Programming
Not sql, but check out google’s OR-Tools. Hardly ever gets mentioned but looks very capable for some applications. https://developers.google.com/optimization
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Would anyone know how to auto schedule tasks based on certain constraints?
Then there's also the Google's solution: https://developers.google.com/optimization/
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Assignment to at most K groups from distance matrix?
start enumerating the properties you think the solution to your problem should have. once you have this, you should be able to reformulate those properties as constraints and then you can just plug this into a combinatorial solver such as https://developers.google.com/optimization
OptaPlanner
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OptaPlanner VS timefold-solver - a user suggested alternative
2 projects | 23 Jun 2023
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Resource Scheduling
However, if you need to solve constraints etc., see: https://www.optaplanner.org/
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Anything you wish there was an open source solution for?
Try looking for something built around Optaplanner - basically taking the end game of rostering and working backwards.
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Seeking Advice and Collaboration for an Open-Source Worker Cooperative Platform Project
OptaPlanner takes some of the items tracked in tool like Odoo and creates plans based on them. I.E. how do you manage shifts while juggling multiple constraints (Jerry can only work weekends, Jeff can only work afternoons, Jim can work weekends but only on double time, etc.)
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[Combinatorial Optimization] What is a good algorithm, or genre of algorithms that I should read up on for an optimization problem with a set of sets, where at least one element of each set is required?
There is a library out there called Optaplanner that is designed for optimization of NP complete problems. It is hard to tell if that is exactly what this is, but I think you should be able to use this regardless.
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Searching for something to schedule IT helpdesk shifts
Just stumbled upon https://www.optaplanner.org. Looks very interesting but also really overkill.
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Easy-to-use school scheduling software?
OptaPlanner - a generic scheduler.
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Non profit Healthcare clinic looking for self hosted or cheap cloud alternative employee shift scheduling app?
OptaPlanner
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Self-hosted schedulers?
I've never used it but it sounds like OptaPlanner may be a scheduler in the same vein?
- Algorithm for Assigning Flights to Planes
What are some alternatives?
optapy - OptaPy is an AI constraint solver for Python to optimize planning and scheduling problems.
Choco - An open-source Java library for Constraint Programming
pyomo - An object-oriented algebraic modeling language in Python for structured optimization problems.
jsprit - jsprit is a java based, open source toolkit for solving rich vehicle routing problems
SciPy - SciPy library main repository
JaCoP - Java Constraint Programming solver
optaplanner-quickstarts - Mirror of https://github.com/apache/incubator-kie-optaplanner-quickstarts
vroom - Vehicle Routing Open-source Optimization Machine
SWIG - SWIG is a software development tool that connects programs written in C and C++ with a variety of high-level programming languages.
kotlin-statistics - Idiomatic statistical operators for Kotlin
Decider - An Open Source .Net Constraint Programming Solver
Komputation