house advertising warning! Just in case you guys e...

# datascience

[holgerbrandl]

house advertising warning! Just in case you guys ever feel the urge to discuss how to create a discrete event simulation with kotlin --> #kalasim

[altavir]

We are doing a lot simulations, but they are mostly continous.

[holgerbrandl]

What framework are you working with to do so?

[altavir]

Mostly naked kotlin coroutines. We plan to use Kmath for advanced things and geomtry, but so far we even managed without it.

[holgerbrandl]

Nice. Thanks for sharing.

[altavir]

here is the latest article: https://arxiv.org/abs/2011.07858 and the code for it: https://github.com/altavir/trapping
And here is the simulation for not yet published work: https://github.com/mipt-npm/rl-tge-sim

[holgerbrandl]

Cool, i'll have a look even without knowing much about physics.😊

[altavir]

Also there is a video about very simplistic educational descreete Monte-Carlo epidemics model here:

https://youtu.be/dW6df7SdX-4▾

, but it is in Russian. You can see the code though

[altavir]

Actually, we are currently working on a coroutine-based Monte-Carlo engine. @Ролан will lead the project this year.

[altavir]

I think that the Flow itself is a very good model for even-based simulations.

[altavir]

Probably better to continue discussion in your channel

[holgerbrandl]

Cool, I actually have implemented a first epidemics model in https://github.com/holgerbrandl/kalasim/blob/master/simulations/covid19/src/main/kotlin/immune/covid19immune.kt as well and plan to continue this fun line of hobbyist research.

[holgerbrandl]

I heard about Flow but somehow have managed to avoid this tricky (for me) topic so far.

[altavir]

I've done more advanced model, which includes behavior patterns and probability distributions for all involved processes. It actuallly could produce realistic results, but I do not have the data for it of course.

[altavir]

If you want, we can do a master-class about using it in models sometimes soon.

[holgerbrandl]

Sure, diving deeper into DES is so much fun.

[fabianishere]

Very interesting project! We are doing discrete-event simulation of datacenters using Kotlin: https://github.com/atlarge-research/opendc
By leveraging co-routines (using a custom, “time-traveling” dispatcher), we can separate most of the simulation logic from the actual business logic.