Mega-R1. Rule-Based Systems

[@Drsorab]

Amazing tutor!

[@abdulwadood]

Suppose two assertions matches rule 0 i.e., assertion 0 and assertion 3. At first we fire rule 0 and assertion 0. What do we do next? Do we fire rule 0 with assertion 3 or rule 'X(any other that matches except 0)' with assertion 1?

[@hibeng6262]

For the part 3 of the question 1. can we say that someone can live in 2 places at the same time as an assertion ?

[@at1with0]

In rule P2, it states: IF ?x lives in SD THEN ?x is a villain ?x is ambitious. Why does the word AND not appear there? Shouldn't it say this: IF ?x lives in SD THEN AND(?x is a villain, ?x is ambitious) Or is adjacency meaning multiple things written next to each other automatically assumed to be conjunction? If that is the case, why is AND ever used in these rules?

[@at1with0]

+at1with0 referring to what I'm seeing at 7:56

[@NewUnit13]

+at1with0 It's just a habit of notation. The IF/THEN statement looks like it would in most code. if (x lives in SD) { x is a villain; x is ambitious; } If the antecedent is met, everything within the {}'s is considered to be the consequent, so you don't need to put the AND's between.

[@at1with0]

+Edward Russell II Thanks for the clarification! I'm not losing my mind after all...yet.

[@jimsmart2522]

The main reason AND isn't used in the consequences is because he's using AND specifically for a "boolean operation" in the antecedents, i.e. if this is true AND that is true. To a computer, it doesn't make any sense to use AND between assertions/assignments/statements, despite the fact that humans use AND for continuation - which is why code the code reads as it does. The reason AND is used at all is because there is no assumption regarding the relationship between two boolean values - other permitted boolean operations include OR and NOT (plus some composite operations such as NOR and NAND, but I digress).

[@dimitris5594]

Gotta love the dude in the middle of the first row who goes to an MIT AI lecture in flip flops!

[@vyrsh0]

that guy is so like me

[@diegonayalazo]

Thanks for sharing

[@TheMhankel]

Awesome! Thank you so much!

[@isbestlizard]

heh.. a TA for an artificial intelligence course who's never heard of or seen of LISP before... just a crazy load of parentheses with operators first huh XD

[@Haapavuo]

He seems so frustrated... Woah... Even makes me hard to concentrate since he is wiggling around all the time.

[@ScottSummerill]

Guy is horrible. Jessica Noss rules. There is a difference between knowing the material knowing how to communicate it. Not sure why MIT doesn’t get it.

[@mitocw]

This is a recitation and not a lecture. This may answer why there is a difference in communication.

[@ScottSummerill]

I know this was a recitation. I had to turn it off after 5 minutes. It wasn’t watchable. Jessica however, I initially only watched her SVM and NN but after the semester was over, a couple weeks back, I went back and completed the series. She is an amazing educator. This guy not so much. How did you manage to lose her to Google? Big mistake.

[@AbaseenPodcast]

@@ScottSummerill "How did you lose X to google" ... big bucks bruh, that's how.