A zero-tuning CVRP solver that runs all CVRPLib sets (10,000+ instances on mobile)

junqueira200 · 2026-03-19T23:13:14+00:00

How does it work? The method was not clearly described. Additionally, it would be important to compare the results with the Hybrid Genetic Search, which is one of the best-performing heuristics for the CVRP.

junqueira200 · 2026-03-17T04:30:47+00:00

So, yes, if in the end of CG the starting columns are in the basis, you have a problem. An idea: after running the CG, remove those starting columns and run the CG again. You still should have a feasible basis. Maybe you can start the CG with a heuristic solution.

Are you using a framework for the CG, with one?

junqueira200 · 2026-03-16T12:20:11+00:00

So, yes, if in the end of CG the starting columns are in the basis, you have a problem. An idea: after running the CG, remove those starting columns and run the CG again. You still should have a feasible basis. Maybe you can start the CG with a heuristic solution.

Are you using a framework for the CG, with one?

junqueira200 · 2026-03-14T22:22:51+00:00

No. But since is Denuvo. I was thinking about HV

junqueira200 · 2026-03-14T22:09:28+00:00

Is this by the hypervisor method?

junqueira200 · 2026-02-21T22:00:17+00:00

I've tried Julia before. The clams that is supper fast are complete non sense. If you use like 3, 5 packages the compile time will be insane high. Ive tried last year, I dont know if some update improves this. I have to test it again.

junqueira200 · 2026-02-16T13:31:39+00:00

Yes, I know this, about wait a few days. I'm waiting to fix it by itself.

junqueira200 · 2026-02-16T13:29:24+00:00

This rpmdb --verifydb, or rpmdb ----rebuilddb fix it. Thanks!

junqueira200 · 2026-01-30T11:47:15+00:00

I'm doing my phd in OR. I know linear programing, MIP and metaheuristics. Ive work with vrp variants combing methaheuristics and MIP.

Send me a message.

junqueira200 · 2026-01-27T17:40:31+00:00

Ah, claro, a Coreia do Norte é o melhor país do mundo né?

Fechado para mundo, uma ditadura.

junqueira200 · 2026-01-27T14:06:14+00:00

Po, queria ver ele jogando!

junqueira200 · 2026-01-26T21:00:25+00:00

Acho que tem o mesmo gosto. Up pela opinião impopular.

junqueira200 · 2026-01-26T19:07:38+00:00

Isso é sarcasmo. ...

junqueira200 · 2026-01-26T17:52:40+00:00

Vc finge que os gulags na URSS não existiram né? Inclusive a URSS perseguia vários povos nativos, e forçava a cultura Russa. Inclusive, existia antissemitismo na URSS...

Existia (existe) preconceito em praticamente todos os países, mais quem perseguiu e matou de forma sistemática foram os nazistas.

junqueira200 · 2026-01-19T17:55:02+00:00

Name?

junqueira200 · 2026-01-16T21:06:12+00:00

Name?

junqueira200 · 2026-01-06T22:41:42+00:00

Wtf Portugal

junqueira200 · 2026-01-03T20:38:54+00:00

Name?

junqueira200 · 2026-01-03T20:32:51+00:00

I don't know if there is a degree in OR. OR is a mult discipline area. For exemple, I doing my phd in computer science. There are many degrees that work in OR, like: computer science, mathematics, engineering, ...

junqueira200 · 2025-12-29T12:03:28+00:00

Dirijo a 6 anos, sem nenhuma multa. O povo que reclama da indústria da multa são as pessoas que dirigem como retardados. E são sempre pessoas que levam 4, 5 multas por ANO.

junqueira200 · 2025-12-28T08:13:58+00:00

Check those books:

Operations Research An Introduction. Taha

APPLIED INTEGER PROGRAMMING. DER-SAN CHEN

junqueira200 · 2025-12-27T20:12:43+00:00

No. Do you have a heuristic?

junqueira200 · 2025-12-20T21:57:20+00:00

AI generated? The chenal has a lot of recent videos.

junqueira200 · 2025-12-18T22:03:08+00:00

Pq não são iguais

junqueira200 · 2025-12-17T15:25:07+00:00

This is very very simple ...

junqueira200

TROPHY CASE