I have a feeling that the study of systems composed of feedback loops (all of creation, I dare say!) will be of interest to you.
I understand it is called "cybernetics".
Please find attached an amusing 1949 Letter from the US Library of Congress to Norbert Weiner, asking him in which section his book "Cybernetics" is supposed to be.
#math #maths #mathematics #library #librarian #DeweyDecimal #physics #economics #biology #astronomy #science #computing #computation
Peano arithmetic is enough, because Peano arithmetic encodes computation
https://math.stackexchange.com/a/5075056/6708
#HackerNews #PeanoArithmetic #Computation #MathLogic #MathematicalFoundations #HackerNews
Today, I discovered that Postgres materialized views do _not_ inherit their parent table's indexes. This is why my spatial query is still running after 24hours.. 9000 × 50,000,000 = 450 billion geometry comparisons. Doh!
“Astonishing #discovery by computer #scientist: how to squeeze space into time”
#KelseyHoustonEdwards PhD / #ChalkTalk / #computation / <https://youtube.com/watch?v=8JuWdXrCmWg>
AI: Cure All Diseases - Eric Schmidt on AI
"Rather than rely on clever computation to make the best of conventional camera hardware, some engineers are instead experimenting with optical components such as new apertures, and animal-inspired sensors, that together can gather high-quality visual data that requires less intensive processing."
We predicted it and it happened! This week, startup Vaire announced that they've built the first #prototype of a chip that computes reversibly: it can recover some energy used in #computation. Vaire's CTO and co-founder Hannah Early says this is just the beginning.
Reversible Computing Has Poten...
My CPU is producing a lot of heat in recent days. Most of the time I'm doing #wakegp experiments to fine tune parameters. And I'm also compiling various versions of #Luanti to find out or fight with regressions and report them upstream.
I'm just glad I invested into buying this CPU plus a decent AIO. I can compile debug enabled Luanti from scratch in just about 5 minutes. Interestingly, compiling a debug enabled wakegp with incremental builds takes at least the same amount or even more.
wakegp is written in Rust, Luanti is written in C++. Luanti is a far larger codebase. But I guess the problem's that many of Luanti deps are shared libraries so I don't have to do the compiling or linking for them.
#Rust #programming #dailyNote #cplusplus #compiling #heavycomputation #computation
TOSID Update:
Added formal paper presentation
https://github.com/ha1tch/TOSID/blob/main/tosid-paper.md
As PDF:
https://github.com/ha1tch/TOSID/blob/main/tosid-paper.pdf
The TOSID (Taxonomic Ontological Semantic IDentification System) is a comprehensive taxonomic framework designed to uniquely identify and classify any conceivable entity across the universe. The system uses a structured alphanumeric code that embeds hierarchical information about an entity's fundamental nature, origin, scope, and specific identity.
Latest working (non-paper) version:
https://github.com/ha1tch/TOSID/blob/main/tosid-01.md
Repo:
https://github.com/ha1tch/TOSID
#foss #semantic #taxonomy #compsci #computation #informationtheory #ontology #tosid
New Project!
The TOSID (Taxonomic Ontological Semantic IDentification System) is a comprehensive taxonomic framework designed to uniquely identify and classify any conceivable entity across the universe. The system uses a structured alphanumeric code that embeds hierarchical information about an entity's fundamental nature, origin, scope, and specific identity.
https://github.com/ha1tch/TOSID/blob/main/tosid-01.md
#foss #semantic #taxonomy #compsci #computation #informationtheory #ontology
X X^t can be faster
https://arxiv.org/abs/2505.09814
#HackerNews #X #X^t #can #be #faster #arxiv2505 #Xmatrix #computation #optimization #speedup
Why agency and cognition are fundamentally not computational
https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2024.1362658/full
#HackerNews #agency #cognition #computation #psychology #neuroscience
Cardiac: A CARDboard Illustrative Aid to Computation [pdf]
https://www.cs.drexel.edu/~bls96/museum/CARDIAC_manual.pdf
#HackerNews #Cardiac #CARDboard #Computation #Illustrative #Aid #pdf
New preprint from our team: https://arxiv.org/abs/2409.04372
A new algorithm for computing #material properties in #densityfunctionaltheory (#dft) based on inexact #krylov methods: we safe 40% computational cost by an adaptive selection of convergence tolerances inspired from #mathematical analysis.
#condensedmatter #planewave #dfpt #response #physics #simulation #computation
#Quantum #computation from #spacetime defect #networks | #MargaritaDavydova (#Caltech)
“Recorded as part of the Generalized Symmetries: #HighEnergy, #CondensedMatter and #Mathematics KITP conference from Apr 7, 2025 - Apr 10, 2025 at the Kavli Institute for #TheoreticalPhysics on the #UCSantaBarbara campus.”
#UCSB
#physics #computing #qubits #topologicaldefects #lagrangian
Going to be starting “Introduction to the theory of computation”. Anyone else read this? What did you think?
#ComputerScience #Computer #Computation #MichaelSipser #Tech
