LESSWRONG
LW

Personal Blog

15

Just a reminder, for everyone that signed up for the intro to AI class, it's started.

by Psy-Kosh
10th Oct 2011
1 min read
37

15

Personal Blog

15

Just a reminder, for everyone that signed up for the intro to AI class, it's started.
5Craig_Heldreth
0SilasBarta
0[anonymous]
4Psychosmurf
2Psy-Kosh
0RomanDavis
3SilasBarta
2[anonymous]
0SilasBarta
0Psychosmurf
0RomanDavis
0Psychosmurf
3betterthanwell
1SilasBarta
2betterthanwell
3SilasBarta
0Armok_GoB
3Dallas
0Psy-Kosh
3SilasBarta
2Psy-Kosh
0SilasBarta
0pragmatist
0SilasBarta
0Jonathan_Graehl
0pragmatist
0SilasBarta
2Craig_Heldreth
2SilasBarta
2Vive-ut-Vivas
2jefftk
2XFrequentist
0[anonymous]
0XFrequentist
1[anonymous]
2anotheruser
0[anonymous]
New Comment
37 comments, sorted by
top scoring
Click to highlight new comments since: Today at 8:43 AM
[-]Craig_Heldreth14y50

I am in the AI class and also would be interested in participating in a LessWrong study group.

Reply
[-]SilasBarta14y00

Looks like the ML class just got a mention on Slate. The article sucks, but it's good that it's getting attention. (Or not, considering how many people find themselves in over their heads.)

Reply
[-][anonymous]14y00

Same here!

(as I've stated in both previous threads ).

Reply
[-]Psychosmurf14y40

Thanks for the reminder.

For anyone still interested, it's not too late to sign up.

Reply
[-]Psy-Kosh14y20

You're welcome. :)

Reply
[-]RomanDavis14y00

Is it too late now?

Reply
[-]SilasBarta14y30

I found out it's not even too late for the machine learning class so I signed up for it too. I'd read about Ng's work before and some of his projects, and I'm excited to take a class from him (not to mention Thrun and Norvig, of course).

Edit: I should add I was hesitant about taking both, which happen at the same time, but after seeing the first homework in the AI class, which was rather brief, I figured it would be manageable.

Reply
[-][anonymous]14y20

It is still possible to enrol in the machine learning class (I sucesfully registered in the advanced class).

Edit: I should add I was hesitant about taking both, which happen at the same time, but after seeing the first homework in the AI class, which was rather brief, I figured it would be manageable.

+1

Reply
[-]SilasBarta14y00

+1 Back at ya. I'm beginning to think these courses are a little more basic than I was expecting. I had already been famliar with all the points Ng was making about linear regression, so I was skipping through most of it and putting him to 1.5x.

Reply
[-]Psychosmurf14y00

Probably, but I'd try anyway.

Reply
[-]RomanDavis14y00

How?

Reply
[-]Psychosmurf14y00

Go to this site:

http://www.ai-class.com/home/

and sign up.

Reply
[-]betterthanwell14y30

"We've had an absolutely massive surge of last-minute homework submissions" - how surprising!

"The massive crush of students trying to do homework at the last minute exceeded all of our expectations, and the expectations of our servers. To compensate those who have had difficulty accessing the site today we have moved the deadline by 24 hours."

That figures.

Reply
[-]SilasBarta14y10

What's even more (pseudo-)surprising/depressing is that, at least according to this thread and subthread, only 1,000 people completed the first homework, out of the ~150k who signed up.

A commenter suggested that this is reasonable considering the wide net they cast for the course compared to the math pre-requisites, and the normal compsci class dropout rate (which increases for large classes).

Reply
[-]betterthanwell14y20

YouTube view counts are delayed and not-at-all reliable.

Reply
[-]SilasBarta14y30

You're right. Recent update says 46k (not sure if the link in the thread to Norvig's G+ account is perma so just linking reddit).

Reply
[-]Armok_GoB14y00

I find the recursiveness kinda hilarious actually.

Reply
[-]Dallas14y30

The server seems to be in a bit of a clusterfuck, but unit 1 was interesting. Rot13: V npghnyyl zrffrq hc ba gur Puvarfr "fbhc/zvk" pbeerfcbaqrapr dhrfgvba, naq nz srryvat dhvgr flzcngurgvp sbe Tbbtyr Genafyngr evtug abj. :)

Reply
[-]Psy-Kosh14y00

Yeah, I messed up with one of those too, but IIRC it was more a case of not noticing/missing one line.

(Also, part of the problem is that some of the symbols were partly covered by the buttons you could select, so..)

Reply
[-]SilasBarta14y30

I got an email a week ago that said I'd be emailed again for relevant updates, but haven't been.

Reply
[-]Psy-Kosh14y20

You can go to the site and sign in right now. Assuming the site behaves properly at the moment.

Reply
[-]SilasBarta14y00

Cool, I was able to listen to the lectures yesterday evening and do the lecture quizzes. Perfect scores so far!

I wish they had transcribed versions of these lectures, they would go a lot quicker. Maybe I'll do it myself if I have time.

Reply
[-]pragmatist14y00

I use MySpeed to speed up online lectures. I'm finding the lectures quite easy to follow at twice the original speed.

Reply
[-]SilasBarta14y00

Tried it out, good stuff! Norvig speaks slower than I'm comfortable with. The transitions between videos and questions is a bit flaky though, and MySpeed might have something to do with it.

Reply
[-]Jonathan_Graehl14y00

At just 150%, I found Andrew Ng (Machine Learning) somewhat hard to understand without guessing based on context. Does this software do a better job than the web player for the lectures?

Reply
[-]pragmatist14y00

I just tried, and the software player does seem to do a better job than the web player. It certainly sounds different. I don't have much trouble following Ng at 150% on the web player either, however, so it's hard for me to make a useful comparison.

I should say, though, that the machine learning videos don't seem to be loading fast enough on my connection for smooth sped-up streaming using the software. This makes the software pretty useless unless you pre-load the videos or are willing to put up with the frustration of intermittent buffering. I don't have this problem with the AI videos (or youtube videos in general).

Reply
[-]SilasBarta14y00

Neat, that looks like a great time-saver!

Reply
[-]Craig_Heldreth14y20

OK here is my status if anybody is interested.

I am in the class for week 2. I read the book, did the classes-quizzes, did the homework, completed for week 1 (AI only.)

I found the reddit discussion page. I joined reddit after procrastinating that for a long time. The most interesting discussion there (to me) was the one on how many signed up, how many viewed the you tubes, how many are likely to finish the class.

I also joined another study group with 11 people off metafilter and we are all together there in the google+ circle and the google wave but there has not been any real activity there yet.

I have pages of questions and probably will trickle them into the reddit page mostly. The class "discussion" page where I am presuming Sebastian and Peter and/or their TA's are actually going to read the stuff is not up yet.

Reply
[-]SilasBarta14y20

By the way, it's worth visiting the machine learning course site just to see the adorable robot-with-diploma mascot! :-)

Reply
[-]Vive-ut-Vivas14y20

I'm in all three. I second the LW study group formation.

Reply
[-]jefftk14y20

I'm signed up for the ml class, which also now has the initial lectures and review questions up.

Reply
[-]XFrequentist14y20

People have talked about a LW study group, but I don't know if one was formed.

Reddit is one possibility.

Reply
[-][anonymous]14y00

There is a google group for the machine learning class (which I think still has open enrolment), with about 30 members but not much activity so far.

I can't speak for anyone else in the group, but since I'm enrolled in both classes I wouldn't mind discussion related to the AI class at all! :)

Reply
[-]XFrequentist14y00

Thanks! How does ML compare to the AI class? I considered taking both, but I was worried overextending my leisure-time learning budget.

Reply
[-][anonymous]14y10

It comes off a bit more hands on with regards to implementation. For example there was a lot of talk about efficiency and the 5th segment is a quick tutorial for Octave, since programming assignments are also part of the class. The interface of the website is better currently (and for example the slides used in the presentations are available for download). The homework section which is just review for now can be taken almost as many times as you like (the variables of the problems change ala Khan Academy) and you get instant feedback. Ng comes off a bit better at presenting his material than Norvig but not better than Thrun (this is subjective obviously). I don't know quite what it is but there is something about the AI class which gives me the feeling that I will actually find it much more interesting than the Machine Learning class in about a month or so.

The first week of ML has proven much more demanding on my time than the AI class, but this is probably because I've watched most of the prerequisites for the AI class during the summer, but didn't touch any of the stuff that's been on the machine learning class website for two weeks or so until this weekend.

The on-line Machine Learning class seems more simplified compared to its Stanford version than the AI class is to its Stanford version (though the first week of the AI class was very easy, I understand the same lectures are used for the Stanford AI class). So far there aren't any indications you don't really need the AI class or something that gives equivalent knowledge before delving into the ML one.

Reply
[-]anotheruser14y20

I signed up for all three Stanford courses to see how they are before deciding which are worth the time investment. I have received a notification from both the Databank class and the Machine Learning class but not from the AI-class.

By the way: does LW have a learning group or something for this?

Reply
[-][anonymous]14y00

A simple google group is around.

Reply
Moderation Log
More from Psy-Kosh
View more
Curated and popular this week
37Comments

Here you go: http://www.ai-class.com/

 

They're still working out kinks in the site, and no homework is up yet, but the initial set of lectures (really really basic "what is AI/welcome to the first day of class" type stuff is up), so if you signed up, then sign in and hopefully the site will work for you.

Mentioned in
45[Link] A gentle video introduction to game theory