Obelisk – a WASM-based deterministic workflow engine

https://obeli.sk/

Deterministic simulation testing for async Rust

https://s2.dev/blog/dst

Evaluating Drought Risk Of The Red River Of The North Basin Using Historical And Stochastic Streamflow Upstream From Emerson, Manitoba
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https://pubs.usgs.gov/publication/sir20255002 <-- shared link to USGS publication
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https://waterdata.usgs.gov/nwis <-- USGS National Water Information System (NWIS) database - USGS water open data for the Nation
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#GIS #spatial #mapping #deterministic #waterbalance #stochasticweather #model #modeling #RedRiver #USA #Canada #spatialanalysis #spatiotemporal #waterresources #streamgage #NorthDakota #Manitoba #streamflow #flood #flooding #watersupply #agriculture #farming #ecology #drought #extremeweather #meteorology #basin #subbasin #risk #hazard #gauge #flow
@USGS

At the fundamental (#quantum) level, Nature is #probabilistic. Much of #computing is about modelling natural phenomena and it relies on semiconductor physics, which is inherently quantum mechanical. Yet, much of present day computing hobbles on #deterministic algorithms.

#call4reading

Simple and #deterministic spectral #concentrationbound for #localHamiltonians #by Nilin Abrahamsen

https://doi.org/10.26421/QIC23.15-16-4

A new argument suggests that quantum mechanics may be more deterministic than previously thought, reigniting the debate on the relationship between physics and free will. The discussion centres around whether the indeterminacy at the quantum level leaves room for free will or if the universe is fundamentally deterministic.

#QuantumMechanics #FreeWill #Deterministic

https://www.scientificamerican.com/article/does-quantum-physics-rule-out-free-will/

i wonder if it's possible to make a video game that would teach kids the intuition behind the "butterfly effect" by making each subsequent level's initial conditions determined by the outcome of the previous level, in such a way that the gameplay would guide you towards understanding that tiny decisions made on the first level will have huge consequences on level two, etc. #chaos #butterflyEffect #chaosTheory #deterministic #systems #nonlinear #differentialEquations #bifurcation cc @JamesGleick

Crazy how much difference the right data structure / #algorithm for a task makes.

This week I learned about #Deterministic #Finite #Automata and #Nondeterministic Finite Automata just to redo my clunky #AdventOfCode2023 day 12 challenge, written in #Rust #RustLang

Runtime for part 1 dropped from 1-2secs to milliseconds. Part 2 also milliseconds

Are there any good Rust crates for DFAs/NFAs?

Many people solved that problem with #Dynamic #Programming - something else for the learn list

Declarative, Imperative, Configuration, Data, Executable, Predicate Logic, Deterministic, Idempotent, Math, Logic
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ACM.451 What matters when it comes to security and supply chains
~~
#declarative #imperative #deterministic #logic #idempotent #supplychain

https://medium.com/cloud-security/declarative-imperative-configuration-data-executable-predicate-logic-deterministic-a452482e6a01

'Policy Gradient Methods Find the Nash Equilibrium in N-player General-sum Linear-quadratic Games', by Ben Hambly, Renyuan Xu, Huining Yang.

http://jmlr.org/papers/v24/21-0842.html

#stochastic #deterministic #games

New updated #introduction / pinned:

The "Starship Schrödinger's Destiny" is an #interactive #vr #scifi #story about the crew of a #flyingsaucer

The story is about #manyworlds and we love the title because it's a contradiction: There can be no single destiny in a Schrödinger multiverse, all outcomes all happen with varying amplitudes.

And yet it is more #deterministic to have those amplitudes, than to just be selecting outcomes randomly. There is also a sense in which we are all destined to see all outcomes.

We are looking forward to building this choose-your-own-adventure in a multiverse setting, because there are so many ways in which all the choose-your-own-adventure style books demonstrate a multiverse too. All the possible outcomes existing all at once, but read with varying amplitudes.

But it's not just our story: The engine we are building to let us tell our story will be open for others to enact their own. To puppet the characters themselves, tell their own story. In a multiverse, all things can happen.

That's the plan anyway. Very early still. V0.3 took like four years. Hoping V0.4 will be quicker, but I seem to have decided it's time for the complete-rewrite, so. Ugh.

But there are milestone-movies along the way:

V0.1 saw our story "Forgettery".
https://starshipsd.com/pre/forgettery/

V0.2 was entitled "Eggs"
https://starshipsd.com/pre/eggs/

V0.3 was entitled "Payment"
https://starshipsd.com/pre/payment/


V0.3 is a massive leap forwards, which is why it has taken so very very long, and the coming V0.4 I hope will be basically feature-complete and written so I can share as much of the source as possible.

In the meantime, we have a side-story about aliens discovering a planet on the brink of economic and environmental collapse! Lots of shorts here:

https://starshipsd.com/observers/

Non-Deterministic Behavior of Thompson Sampling with Linear Payoffs and How to Avoid It

Doruk Kilitcioglu, Serdar Kadioglu

https://openreview.net/forum?id=sX9d3gfwtE

New #ReproducibilityCertification:

Non-Deterministic Behavior of Thompson Sampling with Linear Payoffs and How to Avoid It

Doruk Kilitcioglu, Serdar Kadioglu

https://openreview.net/forum?id=sX9d3gfwtE

I'll believe #BellsTheorem when you can demonstrate #quantum #entanglement *originating* at a distance.

How Realtime Is Your Kernel? Scope A GPIO To Find Out - When debugging something as involved as kernel scheduler timings, you would typica... - https://hackaday.com/2022/12/05/how-realtime-is-your-kernel-scope-a-gpio-to-find-out/ #digitaloscilloscope #interruptlatency #deterministic #linuxhacks #real-time #embedded #rtlinux #linux #rtos

More #toxic #speech about #FSTs from #gtp3. #computationallinguistics #nlp #deterministic #functional

In the ongoing attempt to make a #reproducible or #deterministic ext4 disk image: I think there's a way, but I'll end up combining both approaches.

It appears that the only non-deterministic parts of ext* are the timestamps and UUID, which are easy to sanitize, and the order in which files / blocks are written, which is not feasible AFAICT.

So I want to make a program that does what mkfs.ext2 does, but also unpacks a tarball into the ext2 image as it writes it. Then...