meal-scheduler
OptaPlanner
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meal-scheduler | OptaPlanner | |
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3 | 30 | |
- | 125 | |
- | 37.6% | |
- | 8.0 | |
- | 11 days ago | |
Java | ||
- | Apache License 2.0 |
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meal-scheduler
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Ask HN: Do you use an optimization solver? Which one? Why? Do you like it?
I use Minizinc in a personal toy project (https://gitlab.com/dustin-space/meal-scheduler), and GECODE or Google's ortools solver at the backend. It's used for meal planning. Unfortunately it's way way slower than I'd hope. I suspect I just have the domain not modeled efficiently. Maybe if I had a few days to put into it, and learn how to properly debug the CSP solver step by step, it might help...
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What is your “I don't care if this succeeds” project?
I wrote a meal scheduler - https://gitlab.com/dustin-space/meal-scheduler. It tracks ingredients we have at home, it has a database of recipes, it knows where we can buy ingredients online (for delivery).
It schedules meals for my shared household.
That sounds like a fun application, both the usage and the implementation.
I wonder if you have any interesting example data-files that could be used with the model, preferable both something small and something larger? Would be fun to test the model locally to see how it behaves.
Notes: I'm assuming here that https://gitlab.com/dustin-space/meal-scheduler/-/blob/master... is the model used.
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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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?
- Looking for a self hosted employee shift schedule
- Baseball Team Scheduling
- What kind of open source self-hosted solution is needed in your industry?
What are some alternatives?
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or-tools - Google's Operations Research tools:
jsprit - jsprit is a java based, open source toolkit for solving rich vehicle routing problems
JaCoP - Java Constraint Programming solver
vroom - Vehicle Routing Open-source Optimization Machine
kotlin-statistics - Idiomatic statistical operators for Kotlin
Komputation
kotlin-jupyter - Kotlin kernel for Jupyter/IPython
Decider - An Open Source .Net Constraint Programming Solver
HiGHS - Linear optimization software
pairAdjacentViolators - A JVM implementation of the Pair Adjacent Violators algorithm for isotonic regression
KotlinDiscreteMathToolkit - Set of extensions for Kotlin that provides Discrete math functionalities