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During benchmarking, I noticed that the gaps on MDVRPTW instances PR16A/B and PR24A/B sometimes were very high for some seeds (13-26%). This happens for about 1/5th of the seeds.
I also ran the MDV…
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The following is a (non-exhaustive) list of things from #213:
- [ ] SREX need not reinsert optional clients. Base this on prize?
- [ ] Template the reinsert/remove operators to do more at once?
-…
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Our current use of `int32_t` is sufficient for most simple routing problems, but makes it hard to balance multiple different cost aspects in the objective. Suppose, for example, that the distance fact…
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While OptiML was the clear winner for the static VRPTW, several other teams made improvements to the static HGS solver for the [EURO Meets NeurIPS 2022](https://euro-neurips-vrp-2022.challenges.ortec.…
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Stub for release notes
# PyVRP 0.7.0
## New features
- `ProblemData.replace` allows one to create a new `ProblemData` instance where one or more attributes are replaced with the given argumen…
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In relation to #181...
Using OSRM v5.22.0 and VROOM v1.4.0. I've ran the following:
```
$ osrm-datastore --dataset-name=eu-car /opt/osrm/data/europe-latest/europe-latest.osrm
[info] Data layout …
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I encountered difficulties when dealing with data for solving VRPTW. IndexError: list index out of range for all VRPTW data
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For the next release cycle (so, 0.8.0 or so), I would like to try to get some form of mixed backhaul into PyVRP. Right now we only support deliveries from the depots to the clients, and I would like t…
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Command:
```
vroom -i input_cap_assert_matrix.json
```
Error:
```
vroom: structures/vroom/raw_route.cpp:100: void vroom::RawRoute::update_amounts(const vroom::Input&): Assertion `_current_l…
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Hello,
I'm currently using the OR-Tools to solve VRP instances by following this guide : https://developers.google.com/optimization/routing/vrp.
However, I was wondering which method is used by fu…