Posts Tagged ‘Exam’

Exams are done!

Monday, August 16th, 2010

…at least for the next 6 months or so. ;) Now that I’ve moved and let my brain cool down, I can finally start working on random projects (and replaying StarCraft II!).

At this point, exams are pretty much routine work. I still hate them though: for the most part, exams merely test a student’s memory retention and ability to work under time pressure (i.e. damn quick – I don’t remember not feeling the crunch on any non-trivial test). Bah. Anyway…

PSYCH 338 went well. The “final” was actually just a second non-cumulative midterm that happened before the actual exam period, giving me some extra leeway for my other courses. Of course, this meant that I had to study for it while working on other assignments (namely OS)… Overall, though, the course didn’t require too much mental effort. :P

BUS 352W was next. I’ve already mentioned earlier that I really enjoyed the course and having an awesome group for the projects definitely added to that experience. :) The final was longer than the midterm (though it wasn’t cumulative) and I didn’t think I’d actually finish (I did – although the last couple of pages looked like scribbles). But, well, I pretty much expected it since we were forewarned.

So that leaves my computer science courses. CS 341 was damned hard as expected. I think the structure of the exam actually hurt me more than it helped (a large portion of it was multiple-choice – a format I disagree with for mathematical exams). For the rest of it, I just can’t come up with decent algorithms without some references and a bit of time to mull things over. The material was still very interesting though. :D

CS 348 was next. I can’t say it was that hard although it was ridiculously long (20+ pages in 150 minutes, hah). What really ticked me off was how easy the 1996 winter final looked in comparison; I was able to answer most of the questions before I started my course review (though it didn’t cover much of the second half of the course), the exam was open book and more time was allocated. Huh?!

And CS 350 gets to be my last exam on Friday the 13th. :P It was actually surprisingly easy, but that was only because the midterm taught me the structure of the exam and the study questions (at the bottom of this page) more than prepared me for the more involved questions (e.g. calculating the maximum size of a file using Unix’s inode structure, tracing through scheduling/paging algorithms, etc.). The only question that really caught me off-guard was something on exponential average (I probably missed it since it was mentioned in only 3 lines throughout the entire course notes). Ah well… It was definitely a fun course even if the assignments were relatively long. Implementing interprocess communication in OS/161 would have been really interesting (that particular assignment wasn’t included in CS 350 though).

Unofficial marks are starting to come out today so we’ll see how stuff went. Next up: stuff about StarCraft II (probably). :P

Midterms: CS 341, CS 348 and CS 350

Friday, June 25th, 2010

…and the second half of the midterm barrage has finally come and gone. I guess it’s back to normal university life?

Anyway, I wrote my CS 350 (Operating Systems) midterm last Friday. As I expected, it was relatively hard. A large portion of it was rote memorization from the lectures, notes and textbook. Then there were a few analytical questions that really required a deep understanding of certain topics (i.e. how virtual addresses are structured to incorporate multi-level page tables, etc.). Good thing ~1/9th of the total marks were for bonus questions. :P

CS 348 (Intro. to Database Mgmt.) and CS 341 (Algorithms) were scheduled back-to-back on Wednesday and Thursday. I don’t have much to say about the former – the course is pretty straightforward especially since I had a lot of prior experience with the material in previous work terms and hobby projects. Algorithms, on the other hand, wasn’t anywhere as easy. Though the topic is very interesting (examples here, here and here), proving optimality and determining time complexity is not. Especially when the proofs lead to equations with chain exponents and logarithms. For the midterm I actually had to leave certain questions unfinished because going through the math alone would eat up all of my time. Meh.

Anyway, it doesn’t look like I can relax for a little while longer since I have a ton of assignments to do for various courses. Out of the frying pan and into the fire much? :P

Midterms: PSYCH 338 and BUS 352W

Saturday, June 12th, 2010

It’s mid-June and things are starting to really pick up. Between interviews, assignments (lots of group projects for me this term), club meetings and other administrative stuff, I haven’t had too much time to do much else. Except for gaming. There’s always time for gaming. ;)

Anyway, I had my organizational behaviour midterm on Thursday followed by my marketing midterm on Friday. Needless to say I had a lot of reading to catch up on. :P I think between both of those courses I’ve went through around 400 pages of textbook reading. Speaking of textbooks… Ow.

Let’s start with PSYCH 338. One interesting concept about this particular course is that it’s divided into two parts: a standard lecture followed by discussion groups with TAs. This allows for more freedom to elaborate on weekly topics through various interesting activities (e.g. analyzing management styles in videos and teamwork exercises). It definitely helps considering my class size is well over 300. I thought all of the main concepts were articulated well; there was nothing that made me go “WTF is this?!”. :P

The midterm consisted of 55(+1) multiple-choice questions which I thought were relatively tricky. A large portion of them had options like “both A and B”, “all of X, Y, Z”, etc., while others contained negators and various keywords. Some were multi-part questions on a bunch of related terms. It definitely felt more like a 100+ question exam.

As for BUS 352W, I definitely enjoyed the lectures as there is a lot of discussion throughout (as opposed to most/all of my CS courses where everyone is just listening). A lot of the material resonated with me considering the stuff I read up on in my spare time (in addition to work experience). Good thing it’s summer though; I wouldn’t have liked walking to WLU and back in the snow. ;)

I probably wasn’t as prepared for the marketing midterm as I could have been since I was heavily distracted by a few side projects. The exam was basically a bunch of “short”-answer questions followed by some multiple-choice. It was a lot of writing, but I actually finished with time to spare. Three minutes, in fact. Awesome! (Note: I suck at writing tests and even moreso when they’re within tight time constraints.)

On the aforementioned distractions: I’ve been researching like mad on various topics like computer vision, AI, OCR and more. I wonder if there are courses at UW for some of those topics… I know that there is one for AI in CS; the others might be in various engineering disciplines. Currently my focus is on OpenCV (a programming library for real-time computer vision) and Tesseract (an OCR engine). I’ll probably write something about them later if I find anything interesting. :P

And then there were none…

Sunday, December 20th, 2009

I’ve just finished writing my last three exams the last couple of days. It was…actually not all that bad.

On Thursday I wrote the CS 246 final. It was pretty straightforward – a bunch of short answer questions about C++ and software engineering plus a rather large programming question at the end. Considering the last question was pretty much an extension/adaptation of assignment #6 and a similar question on a previous final, it wasn’t too hard. There was definitely a time crunch there though; my wrist was hurting when I was done. :P

Next up was STAT 231 and PSYCH 101 both on Saturday. Ugh. I was actually pretty worried about the former (too much formulae to remember), but the exam was pretty easy. I didn’t like the fill-in-the-blank questions though (-1 for every wrong answer vs. +0.5 for every right answer?) – definitely reminded me of certain Asian exams. :P As for the latter, let’s just say I’m glad it was multiple choice. A lot of questions were just strange and there were plenty of duplicates as well – I don’t think the question generator for the exam was doing too great of a job. Ah well.

What really sucked was that since my last exam was on a Saturday night most of the buses weren’t running anymore. I totally forgot about that fact, but it wouldn’t have mattered anyhow. Bah.

(Oh yeah, so my graph turned out to be relatively accurate. I’d bring up CS 240 / PSYCH 101 a tad and maybe tone down CS 246 / STAT 231. CS 245 gets to shoot through the roof.)

Two down, three to go…

Wednesday, December 16th, 2009

Well, it looks like the graph I made last Wednesday has been pretty accurate so far. I’m not sure if that’s something I should be happy about though. :P

First off was CS 245. Yeah… I’m not going to lie: the final for this course was made of pure suck. It might not have been so bad given a very strong grasp of the concepts, but that wasn’t going to happen. I’ve already mentioned how woefully inadequate the given resources were; throughout the term I was drawing knowledge from various sites, textbooks and similar course offerings at other universities (go Wikipedia!). Don’t get me wrong – I don’t mind having to do extra studying. But when I learn more on my own time than in class (say approximately 75%), why am I paying for tuition? Meh.

Despite my rant, I still did relatively well throughout the rest of the course so I should pass comfortably. *Knocks on wood.* The main thing I’m worried about is how adversely it will affect my performance in the future (for example, when I take databases next term). It hasn’t been too bad thus far, but eh…

CS 240 is on the other extreme. Typically people don’t complain when a course is too easy, but I think there’s a limit. Throughout the term, the class has been relatively quiet and disengaged (in contrast with CS 246 where questions were being thrown around left, right and center). I’ve even heard some comments along the lines of whether this course actually prepares us for CS 341. Guess we’ll know soon enough. :P

I just wrote CS 240′s final a few hours ago and I’d say it was a pretty fair exam. Approximately half the questions were derived from assignments (so they were kind of trivial in nature as long as a few key facts were memorized), but the other half actually required quite a bit of thought (for example, adapting generic algorithms to solve a given problem). Surprisingly there weren’t any short-answer questions, despite the fact that we covered complexity classes and such.

I kind of wish we were given more time though; I didn’t actually get to finish despite rushing through quite a bit of it. Time has been my adversary on pretty much every exam I’ve taken; very rarely do I get the chance to do things like proofreading and whatnot. I don’t like that – time limits test dexterity, not knowledge. My brain just isn’t wired for short, intense sessions. :P

Actually, I can go one step further: I have a bone to pick with the notion of writing exams as a whole. I’ll rant about it in another post though, since I would have to delve into different learning styles and whatnot (plus I’ve deviated enough already)…

Anyway, CS 246 is up next! It should be “fun”. :P

In other news, Facebook changed some privacy features (and in the process ignited a lot of controversy), RockYou gets hacked (exposing some 32 million accounts with passwords stored in plain-text – I didn’t think any company could be so incredibly stupid in 2009) and Google implements personalized search (thus changing SEO completely). Oh, and it started snowing here with temperatures dipping below 0 degrees celsius. Yay. (In contrast, central Alberta dipped below -45 degrees last Sunday. :P )

Final Exams: A Brief Analysis

Wednesday, December 9th, 2009

Exams: How Screwed Am I?

It’s Exam Time!

Tuesday, December 8th, 2009

Wow, last week was just crazy. I didn’t think it was physically possible to complete 5 assignments in a week. :P

First off was CS 240. It was basically an assignment on string manipulation via. the Boyer-Moore and Knuth-Morris-Pratt algorithms. Then we had to manually construct a Huffman tree to determine an encoding sequence for compressing text. Pretty simple stuff, I guess.

Next up was STAT 231. This was basically on model checking, p-value computation (hypothesis checking) and finding prediction intervals. Again, relatively straightforward considering most of the stuff could literally be copied and adapted from the notes… I think I feel a little more confident about statistics now. :P

The two assignments for CS 245 were insane though. I literally spent two days reading through various logic textbooks and notes just trying to understand the material. It actually doesn’t seem that hard, but you wouldn’t think that from attending our lectures. I’ll repeat my quip earlier on Twitter – “University: the place where people make simple things needlessly complicated”. I think I’ll be using that quote for some time to come. :P The good thing, however, is that I think I have a working grasp of what’s going on; that last tutorial definitely helped a lot (the tutor definitely knows how to communicate concepts at a level most people can grasp). I do have one question though. Why were there two assignments due on a single day? It should have been combined into one (this would save about 100 pages worth of cover pages)…

Finally, I had a massive assignment due for CS 246. It was a two-person programming project modelling a soda concession service (with vending machines, students, soda creation plants and more). I have to say, it was actually a lot of fun writing code for this project; I think this was the first thing involving software engineering concepts that I’ve done in university. Perhaps I’d be singing a different tune if I wasn’t interested in or haven’t done any massive projects previously though. In terms of size, this assignment can’t compare to my content management system and I think that prior experience definitely helped a lot. :P (Alternatively, it might be because I got to express my evil side writing code that overcharges people and steals their WatCards/money. :P )

So now that those assignments are done and over with, I have to start studying for exams. Ugh. CS 240 seems pretty straightforward, but I keep wondering whether we’re going to be thrown a curveball on the final (the stuff we’ve done so far seems far too trivial for a second year course). STAT 231 and CS 245 are likely going to be my hardest subjects (with CS 245 coming up this Thursday…). CS 246 will probably be moderately hard, but at least I know what I’m doing in that course. Then there’s PSYCH 101 which I enjoyed but could barely put time into since I was trying not to fail my other courses. :P

Ah well, we’ll see how it goes. ;)

The dangers of procrastination…

Saturday, November 7th, 2009

On November 1st, many Canadians turned back their clock and enjoyed an extra hour of sleep. Alas, I wasn’t part of that group. ;)

Last week was largely dominated by CS 240 (Data Structures and Data Management). Assignment #5 was due on Tuesday and the midterm was scheduled two days after. They were worth 12% and 15% of the final grade respectively (yeah, a midterm worth only 3% more than an assignment :P ). For me, at least, those were the only immediate tasks at hand. Easy, right?

Not so, apparently. The assignment, which was about implementing a B-tree structure, took nearly 30 hours. It definitely didn’t help that I had little experience with Java and completely underestimated the length (my estimate was <10 hours using C++). Anyway, there goes my weekend. :P I did end up finishing though, albeit with some minor bugs; the program length measured up at over 700 lines (with comments and braces) and the documentation at another 250.

Now, what’s really interesting was the number of people who asked for an extension on the assignment. Fine, there’s nothing wrong with that – indeed, I’m sure most professors wouldn’t mind accommodating their students (given a valid excuse ;) ). However, what really happened was that people essentially pressured the instructor into extending the deadline. It even went as far as implied insults directed towards the course staff (criticizing their lack of foresight in putting a major assignment right before the midterm).

If you ask me, most (if not all) of those arguments in favour of an extension were just BS. There was at least two weeks of notice given in advance (not including the clear weighting on the syllabus). Indeed, both the instructor and the tutor clearly said to start on the assignment early. There was really no real excuse why a mass extension was needed – those arguments were literally a façade to cover up people’s inability to manage time. Now, I’m sure there are those with legitimate reasons (perhaps coming down with the H1N1 flu), but those seem few and far between looking at the posts on the newsgroup.

Anyway, it turns out the extension (’till Friday) was reluctantly granted with a 30% penalty. I think those who needed it should be thankful the course instructor is so lenient; he was well within his rights to refuse (and he did, until an hour before the deadline). The tutor should be given some credit for dealing with this issue too; by trying to accommodate the class (asking the prof. for an extension in lieu of the students), she was essentially adding to her own workload. I later found out that approximately half the class didn’t submit on time; now that’s some statistic right there.

This is coming from someone who literally gets through university procrastinating (I have a pretty good reason for it, but that’s another topic). As I implied earlier, I pretty much rushed through the assignment and could have used some extra time. But I also realized that it was entirely my fault for miscalculating the length of it. It seems like a lot of people have a hard time admitting that.

Bah, whatever. What’s done is done…

As for the midterm? It was a breeze. ;)