Thursday, January 7, 2021

Justice

Crazy Donald needs to be brought to justice. If he isn't this will only happen again, and worse. Not punishing Nixon set a bad precedent. 

And then there's the enablers who share in the guilt. Fox "news" has been radicalizing the rightwing mob for decades. Freedom of speech should not mean permission to lie.

Friday, January 1, 2021

Downward activation in A.s.a. H.

 A.s.a. H. may have inadequate means for feeding back information/activation from upper layers in the hierarchy back down to lower layers. A.s.a. has operated mostly "feed forward"/"bottom up."

 This has not been a problem with output of actions. Typically there are orders of magnitude more sensory input as compared to actuator output anyway and reflex actions are contained in the single lowest layer and can be learned there. In a good many experiments we have also concentrated on A.s.a. observing the world and modeling it rather than acting.

 A.s.a. is not completely without downward activation. We  have, for example, fed back utility signals to lower level concepts/cases reflecting their use and value when employed in higher layers. We have also applied feature extraction algorithms to a layer and then added any newly discovered features as cases/concepts/patterns in the next lower layer. This can be done efficiently with parallel processing.

Lie

 I prefer the definition: “an untrue or inaccurate statement that may or may not be believed true by the speaker or writer” Merriam-Webster dictionary at merriam-webster.com. You don’t have to know what crazy Donald is thinking in order to know that he’s lying. 

The concept "measurement context"

 The color of a car depends upon the ambient lighting. It may be different in daylight versus under streetlights at night. 

Human color vision requires a lot of white light.

An electron may appear wavelike when sent through a double slit. It may appear particle like when it impacts a photographic plate.

In Hume's bundle theory objects/things are simply collections of properties and relationships. But we see that properties may not be absolute, independent of context. 

See, also, Philippe Grangier's Contextual inferences, (non)locality, and the (in)completeness of quantum mechanics, arxiv:2012.09736.

Friday, December 4, 2020

More online experiences

So here we are for a week of teaching online. I did a couple of online lectures earlier in the week. Now when I go to get my email on OUTLOOK my account name and password are accepted just fine. But when I try to access CANVAS or FACULTY and ADVISING tools (to enter grades) my password is not accepted. The IT people had me deal with this by changing my password. That fixed things yesterday but the problem reoccurred today with the new password. I found that when I enter the password the computer changes the account name entry to something else! I was finally able to log on by doing things in reverse order, going back and putting in the account name after entering the password. In that way I got into CANVAS and was able to enter the final exams for my classes. (Next week is online final examination week.) Don't know why the computer wants to change my account name to something incorrect.  

Tuesday, December 1, 2020

Coup

 "As the story goes, Godel was preparing for his US citizenship examination in 1947 when he claimed to have found a 'loophole' in the constitution that allowed the US to elect a dictator." Crazy Donald's current coup attempt* makes it clear that Godel was right to be concerned.

It must be possible to prosecute a sitting president.

* Al Gore is the one who had the US presidency stolen from him, not crazy Donald. (Setting us back twenty years in trying to deal with climate change.)

Covid statistics

 Of the 58 students that I've had in my face-to-face classes this semester 18 have had to go into quarantine or isolation for at least 2 weeks each due to Covid.