DEVNOTES.md

Early Findings

• finer auto-correlations mean easier connectivity inference
• how you normalize matters more when signals are more different from each other (i.e. normalizing in reciprocal circuits)
• buffer lenghts longer than ~2k(5k) significantly slow-down script
  • likely computing xcorr not rendering it
• noise variance only matters indirectly
  • likely

Simple:

• delay has predictable signature on xcorr
  • (if autocorr is minimal, influence is delta function)

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methods requirements

• generate random signals w/ given structural causal model
  • random numbers, delays
  • could use perlin for fun, non-gaussian-ness
• should handle small number of nodes (3-10)
• compute cross-correlation (across window)
  • numjs for convolution and more!
    • https://github.com/nicolaspanel/numjs/blob/3d484374d39f6b47a21b9521acb548c5c8f3458a/README.md
  • math.js for convolution?
  • snippet here: https://gist.github.com/jhurliman/7273803
  • could always do it with a nested for loop
  • with normalization!
  • is one-step xcorr sufficient?
    • what about 0,1,2 lag?
    • hard to see how to threshold these
  • pick out peak cross-correlations
    • may compute coincidence index

interactivity requirements

• editable params

  • internal noise per node
  • weights, delay per edge
  • could visualize weights and delay as a synaptic waveform ?

• could have GUI simply be draggable points

  • with contrained limits, background squares

• processing GUI libraries

  • p5.touchgui
    • last updated 2019
    • has some nice elements (slider2d, joystick)
  • p5.gui
    • recent
    • magic constructors -> likely fast to set up
    • no 2D slider?
  • (x) DOESNT actually work with p5 it seems
  • ControlP5 classic, clean
    • lots of elements (including slider2d)
    • dropdowns, radial dials

• javascript GUI libraries

  • oui

    • has 2d, XYpad

  • ControlKit

    • has 2d slider (XYpad) panel.addPad(object,propertyKey,options) -> {Panel}
    • has function plotter!j

  • Control-Panel

    • nicely themed, only minimal inputs

  • simple 2d slider in js, with jQuery?

  • Tweakpane

    • looks nice, minimal, foldable
    • p5 + tweakpane example
      • reddit discussion

• see also graphing libraries

• graphica

  • demos visualization requirements

• visual reflection of implicit params like weight, delay

• color of output signal blends colors of inputs!

• might want some fading trail of previously chosen params

  • or visual indication of what signal looks like with slider val +/- a bit

• simple equation rendered as latex

import requirements

• import graph as from textfield

• render graph as circles

• edit connections via drag and drop

• plot 1D signals plotWave()

• colored latex from dynamics-visualizer-p5

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project sidegoals

• could be an opportunity to use a library OTHER THAN p5, particularly for plotting
  • some mix of p5 for interaction, plotly for plotting?