python-constraint
or-tools
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| python-constraint | or-tools | |
|---|---|---|
| 3 | 57 | |
| 402 | 10,446 | |
| 2.2% | 2.2% | |
| 8.6 | 9.9 | |
| 4 months ago | about 21 hours ago | |
| Python | C++ | |
| BSD 2-clause "Simplified" License | Apache License 2.0 |
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python-constraint
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Algorithm for generating pairs of people
I did a little more searching and found this library: https://github.com/python-constraint/python-constraint
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Constraint Programming
There's also a Python library for constraint programming. Very easy to get started.
https://github.com/python-constraint/python-constraint
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Removing Duplicates From Multiple Lists
Using python-constraint
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
What are some alternatives?
awesome-python - An opinionated list of awesome Python frameworks, libraries, software and resources.
OptaPlanner - Java Constraint Solver to solve vehicle routing, employee rostering, task assignment, maintenance scheduling, conference scheduling and other planning problems.
transformers - 🤗 Transformers: State-of-the-art Machine Learning for Pytorch, TensorFlow, and JAX.
optapy - OptaPy is an AI constraint solver for Python to optimize planning and scheduling problems.
safety-gymnasium - NeurIPS 2023: Safety-Gymnasium: A Unified Safe Reinforcement Learning Benchmark
pyomo - An object-oriented algebraic modeling language in Python for structured optimization problems.
SciPy - SciPy library main repository
optaplanner-quickstarts - Mirror of https://github.com/apache/incubator-kie-optaplanner-quickstarts
SWIG - SWIG is a software development tool that connects programs written in C and C++ with a variety of high-level programming languages.
Decider - An Open Source .Net Constraint Programming Solver
HiGHS - Linear optimization software
python-mip - Python-MIP: collection of Python tools for the modeling and solution of Mixed-Integer Linear programs