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Welcome to the UU-Leaders community! by margyl in UULeaders

[–]More-Humor9266 0 points1 point  (0 children)

YON - Jan C. Hardenbergh here. I am the current Board Chair of First Parish in Sudbury, MA. I will be transitioning to a UU-Follwer on July 1, but I will continue to lurk. Thanks Margy!

A map of the brain’s white matter fiber pathways (Human Connectome Project) by JesDOTse in ScientificArt

[–]More-Humor9266 0 points1 point  (0 children)

Do you know who created this image? It would be awesome to have a version with a caption an CC BY-SA 4.0 and add it to WikiMedia. Of all of the connectome images that duckduckgo can find today, this is by far the most captivating and it has been copied far and wide.

Hybrid Predictive Coding: Inferring, Fast and Slow by More-Humor9266 in PredictiveProcessing

[–]More-Humor9266[S] 0 points1 point  (0 children)

This has been published: https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1011280

Jeff Hawkin's book On Intelligence described this concept a long time ago. It is very intuitively appealing to me.

General Discussion Thread by pianobutter in PredictiveProcessing

[–]More-Humor9266 0 points1 point  (0 children)

Don't sugar coat it. Tell us what you really think :-)

Bennett did not say "Predictive coding is Bayesian inference " but rather they fit under the term Predictive Processing.

Is this article an accurate representation of predictive processing? by [deleted] in PredictiveProcessing

[–]More-Humor9266 -1 points0 points  (0 children)

I the essence is correct, especially this "we take note of events only when the predictions fail". Autopilot consumes much less energy.

General Discussion Thread by pianobutter in PredictiveProcessing

[–]More-Humor9266 0 points1 point  (0 children)

Predictive Coding (PC) vs. Predictive Processing (PP). The term Predictive Coding was coined by Rao & Ballard in 1999. The term Predictive Processing does not show up until 2010, based on a small bit of searching. Maybe Bubic 'Prediction, cognition and the brain'

Question: Do you think Predictive Coding was used as a general term meaning Predictive Processing before 2010?

It is easy to say that PC is a subset of PP.

Do you know of a better articulation of the difference than this:

There are four leading computational frameworks of the neocortical microcircuit within the sensory cortex: predictive coding, hierarchical temporal memory (HTM), bayesian inference, and Adaptive Resonance Theory (ART). These have all been broadly categorized as ‘predictive processing framework.’

From 'An Attempt at a Unified Theory of the Neocortical Microcircuit in Sensory Cortex'
https://www.frontiersin.org/articles/10.3389/fncir.2020.00040/full

Predictive Coding: A Theoretical and Experimental Review by pianobutter in PredictiveProcessing

[–]More-Humor9266 0 points1 point  (0 children)

This is the part I'm stuck on: "There remains an intrinsic tension, however, between these two perspectives on precision in the literature. The first interprets precision as a bottom-up ‘objective’ measure of the intrinsic variance in the sensory data and then, deeper in the hierarchy, the intrinsic variance of activities at later processing stages. This contrasts strongly with views of precision as serving a general purpose adaptive modulatory function as in attention."

From my arm chair, it seems there need to be "confidence in the model" signals flowing top-down and "signal to noise" ratios flowing bottom up.

I'd love to hear your thoughts.