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October 01, 2008 02:21PM
Is it just me or is this forum dead this year???

I am nearly done with summarising my work for this module and was wondering what all of you are going to study???

Last year the told us which sections to do, this year the give the topics...
This time around it seems like a lot less work!
Are you only studying the topics mentioned, or everything??

Good luck!!!
Re: Exam
October 07, 2008 03:23PM
This is a very quiet forum.

I'm intimidated by this module having heard all negative comments about it last year, but am doing my best to think positive because this is the last module i have to do for my degree.

For now i' studying everything and will see closer to the exam if i'll want to focus on the said topics.

All the best for the exam

Would you say the module was hard last year?
avatar Re: Exam
October 07, 2008 07:03PM
We don't need to do the Logic stuff (cos261) which was included last year. So, it's less work to go through, but they might give harder questions. Also, we didn't get any previous exam paper to work through, just what to study.
avatar Re: Exam
October 07, 2008 07:36PM
Does ne one have the exam tut?
avatar Re: Exam
October 07, 2008 07:57PM
It's hidden on Page 3 of Tut 204!! smile
avatar Re: Exam
October 08, 2008 07:36PM

Thanks Reanie

Only Chapter 2-7 + 18, nice!!!spinning smiley sticking its tongue out
Re: Exam
October 08, 2008 09:13PM
I have 7 days free before this exam (and i dont work)... so I'm leaving it until then. Did alright in my assignments and understood the work so so.
avatar Re: Exam
October 24, 2008 04:04PM
Do we only have to study 2 pages for chapter2? Seeing as Nature of environments starts on p38 and Specifying the task environment ends on p40. (as per exam tut 204)

Damn sounds to good to be true. (no Properties of the task environment)
avatar Re: Exam
October 24, 2008 04:12PM
We also have 2 chapters less - don't need to do Chap 8 & 9 (Logic from Cos261) as was asked last year.
Re: Exam
October 24, 2008 04:44PM
Damn, I found COS261 mega interesting.
avatar Re: Exam
October 24, 2008 04:48PM
Then do Cos361?? Apparently they now have a handbook which makes stuff easier.
Re: Exam
October 27, 2008 02:31PM
Did anyone perhaps chat to a lecturer regarding the outline of syllabus for the exam.

I am weary about the amount of pages or sections per chapter we have to cover for the exam.

Any feedback would be appreciated please.


avatar Re: Exam
October 31, 2008 02:44PM
Do you guys think that they will ask theory type questions, like: "Give the definition of a CSP, or depth-first search" OR would it rather be questions like, Show how DFS works with this example, or solve this puzzle using A* search.
(I think they would rather ask implementation type questions, I hope)
avatar Re: Exam
October 31, 2008 03:03PM
Exam questions last year was very similar to the assignment questions - it was more practical than theory.
avatar Re: Exam
October 31, 2008 03:34PM
From 2007 forum (about last year's exam):
PS: We are not doing FOL in full this year

Question 1
Was all about belief. With the vacuum cleaner problem.
-The agents belief
-belief state
-reachable belief

Question 2
-Cryptarithmetic using CSP
-also had to draw a graph for this

Question 8
-Draw AND, OR, NOT, XOR neural networks
-Draw nearal networks from tables

Other topics in exam was:
-Probabilities for decision trees / decision trees
-resolution refutation
-Max/Min Alpha/Beta
-FOL (Was about some guy stealing and gambling)

Supp exam (Jan 2008):

1. train a NN
2. show the states for a 3 x 3 puzzle. showing the f, g(n) and h(n) values using A*
3. Decision tree. they gave one, and you had to work out the end answers
4. when is a heuristic consistent?
5. when does a system use belief states
6. draw a neuron
7. how would you solve overfitting for a DT
8. proof by refutation...
9. draw the belief states for the vacuum cleaner
avatar Re: Exam
November 09, 2008 09:46AM
how't the studying going? anybody else feel like there is too much info? smile
Anonymous User
Re: Exam
November 10, 2008 10:49AM
there was too much info last year(2007), this year they showed a little bit of mercy.we should be thankful.sad smiley
Re: Exam
November 10, 2008 02:16PM
COS361 is very nice...Passed it last year...It can open up ur thinking big time. I recommend for any1 whoz wants a stress free modulesmile
avatar Re: Exam
November 11, 2008 08:06PM
Lets hope the exam is spread out over all the "prescribed" chapters evenly. Except Chapter 7 smile they can leave out chapter 7. hehe.
avatar Re: Exam
November 11, 2008 08:07PM
The COS351 Forum has seen more views / posts the last 3 days than the entire year. hehe.
Re: Exam
November 11, 2008 09:34PM
The module lacks something. too much theory, too little info on how to practically apply it.

WTF is resolution refutation ? anyone know where's an example of a model answer?
Re: Exam
November 12, 2008 05:47AM
Resolution refutation means the following:

Resolution by contradiction (reductio ad absurdum) - see p211

You are given premises and a conclusion. You need to assume that the conclusion is false and then prrof a contradiction by using your inference rules that you learned from COS261 or LGC101.

Given 3 premises, you need to prove R. The first step is to convert you premises to CNF

1: P v Q
2: P -> R
3: Q -> R

In CNF form:
1: P v Q
2: ¬P v R
3: ¬Q v R
4: ¬R (Assume the conclusion to be false)
5: Q v R 1,2 (Inferred from 1 and 2)
6: ¬P 2,4
7: ¬ Q 3,4
8: R 5,7

From 4 and 8 it follows a contradiction which proves that my assumption ¬R was incorrect.

Hope this helps. Just reminded me, wasn't COS261 or LGC101 a prereq for this module?
avatar Re: Exam
November 12, 2008 07:28AM
Because we didn't really have any of these questions in the assignments (Ass 4, Q2 didn't really cover FOL), I really hoped that we would not be needing to learn this stuff again. Sigh! And yes, checked, the FOL subjects is a prereq.
Re: Exam
November 12, 2008 09:02AM
I'm glad we don't have chapter 20!
Re: Exam
November 12, 2008 09:16AM
Course Prerequisites:
COS211 and (COS161 or LGC101 or COS261)

i passed COS211 and COS161 but looong ago. time to wipe the dust of that textbook.
avatar Re: Exam
November 12, 2008 09:31AM
COS161 won't really help with this module. COS261 will. I checked both prescribed text books. (But COS161 will help with COS261...catch 22)

Anybody else writing in Pretoria? (Tswane for the political correct)
avatar Re: Exam
November 12, 2008 09:52AM
Parow: Will be keeping Sanoz0r & Liezl-Mia company...
avatar Re: Exam
November 12, 2008 10:01AM
mmmm. guess i'm all alone then. hehe.
Re: Exam
November 12, 2008 10:07AM
Any writing in durbz??? am tired of writting paperz alone. Since 2006 I have neva written a paper with more then 10 people writing that subject expect for INF305, INF303, and COS321...

COS361 was an all time low. There were only 3 of us writing the paper!!!
Re: Exam
November 12, 2008 10:08AM
Wont be suprised if I write the 351 paper alonecool smiley
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