Archive for the ‘School’ Category

(1/2) Paper

Monday, January 25th, 2010

I just received my grade for the first of two papers I have to write before receiving my Master’s degree. It’s good and I enjoyed the research, so why not post it online?

The study is a wee bit too small to be submitted to a conference paper, but too large to be completely forgotten, so I’m posting it online. The study tried to study the occurrence of choice overload in a movie recommender system and whether or not diversifying the set of recommendations alleviates choice overload. The results were not really conclusive, but good enough to base a second study on. And enough questions rose to base a master thesis research on. So go ahead and read it if you want to.

Paper

I’m still alive!

Wednesday, November 5th, 2008

Just swamped with work. I’m really not going to take much time to write this post, but I will at least give a really, really short update. Schoolwise, I’m working hard. One course, which I’m probably going to fail is taking up way much more time that healthy. Other courses are taking up their fair amount of time too, but nothing compares to my CS5340 Bayesian Network course.

The Computer Vision course is hella fun! We’re working on an algorithm that stabilizes video material which it is doing pretty well already. I can’t show you any results yet, since my eee doesn’t do coding video that well ;) . I have a small clip that shows you how we find the movement in video via which we try and remove the shaking that people usually do. Some more than others…
The video looked better before uploading to Youtube… what you should see is a movie clip with in it arrows pointing in the direction in which points in the movie move. For people that are interested: Shi and Tomasi feature finding and pyramidical Lucas Kanade optical flow. YEEEE!


And as far as holidays go, we have it locked down. The mrs. is coming over 5th of december from which we will spend a whopping 5 days in Singapore. Then fly to Krabi, Thailand for a week of sunbathing, seeing … whatever… and doing… whatever… I don’t know about Thailand. And after that we’re flying to Jogyakarta to meet a friend of ours and a teacher of mine. It’s going to be weird, yet awesome. It is kind of weird, but he is the only 40+ person who actually commented on this blog, so that kind of levels stuff out.

Anyways, now off for dinner, than bed, then school again. Cheers!

1 month down, 4 to go

Wednesday, August 27th, 2008

It’s been nearly a month since I arrived here in Singapore and to be honest, it’s been going fast. Maybe due to the hectic pace of life or maybe because I’m still struggling with finding a proper rhythm. I have been doing tons of stuff, but I think I am forgetting as many things I should do as things I am doing. It was only today I found out I hadn’t actually informed the people that have to agree on my curriculum about the courses I applied and got accepted to. But I’ve now got 4 nice courses I’m going to do.

CS4243 – Computer Vision and Pattern Recognition
A course in which you learn a lot about using Matlab to analyze images. There’s a project that’s part of the course in which you are supposed to create a system which does something … visual. Examples of last year are a chess computer that uses camera’s to read the chessboard and a camera that can track moving faces in its image. I’m quite excited about it, mainly because I don’t know too much about programming. I know a lot about perception and related subjects like optical flow. And some stuff about signal analysis and using Fourier transforms to analyze these. Ah well, we’ll see how it turns out…

CS5340 – Uncertainty Modelling in AI
Presumably the hardest course I’m taking. It mainly aims at using Bayesian networks in order to model uncertainty. Bayesian networks are mathematical models that can be used to model a number of things. For the people that have been watching House (just watched s2e24, and it’s awesome!), a differential diagnosis is basically a Bayesian network. You use a number of evidences to try and find out what the most likely cause is.
An example from cognition is the word recognition model by McClelland and Rummelhart (1981) in which different aspects of words, letters and elements of letters are used to find the most likely word that is depicted by a number of letters. However, this last example might be a neural network… I’m not entirely sure yet. But I’m sure I’ll know the difference in a matter of weeks!

PL5221 – Analyzing Psychological Data using General Linear Models
Even though I already have a pretty decent background in statistics, I think it’s worth just to know a little bit more. I’ve seen a couple of things on GLM’s, but every time I need to run one on data, I encounter words I don’t know the meaning of in SPSS. So this course is supposedly going to help me in becoming a better data analyst, which will allow me to perform even more complicated experiments. It’s not like chi square will bring you anywhere right?

EE4305 – Introduction to Fuzzy/Neural Networks
The original idea was using this course to make the computer vision course easier. But they’re at the same time, so maybe it will be helpful when I get a bit further into the course. The best thing about this course till this far is the teacher. A really helpful guy, who speaks English really good… grammar wise. His pronunciation makes ‘variable’ sound like ‘rawrble’. But I don’t foresee many problems during this course.

Traveling

[singlepic id=43 w=320 h=240 float=left]Tutorials and projects are only starting next week, so the time I spend studying is limited to the lectures I attend and the preparation I do for these lectures. I’ve had only one assignment so far, which worked out pretty ok. So what do you do when you’re in the hub of South-East Asia? You travel!

Last weekend I’ve been to Pulau Bintan in Indonesia with a couple of people I met here in Singapore. A nice mixed bunch of people. Americans, Canadians, French, Germans, Scandi’s and Dutchies all getting along just fine. We rented two huts in a place called “Shady Shacks” for really no money at all. The tickets we booked were pretty cheap too. And the entire weekend was really good.

We left on Saturday too early to be healthy and at arrival on Bintan, after about 2 hours on a ferry, we stepped ashore into the pouring rain. A bit weird, a bunch of westerners walking around in the rain looking for a place to eat. It was national day in Bintan, celebrating the liberation from the Dutch reign (at the point I found out I took of the Dutch flag draped around my shoulders), so it was really crowded on the streets. Weirdest thing would have been being flipped off by a 13 year old boy… I just assume that’s the normal way of greeting people on Bintan.

[singlepic id=41 w=320 h=240 float=left]We had an awesome dinner in the harbourtown/capital Tanjung Pinang, after which we got on 2 cabs to go to the Shady Shacks, but not before going to the supermarket for some alcohol preparation. A crate of Bintang and one of Carlsberg were supposed to keep us alive and amused throughout the rainy day. And it really didn’t stop raining, even when we got to our accomodation. But since it was still warm, we decided to bring some beers into the sea and just go around for a swim in the rain anyways. Which proved to be an awesome preparation for the dinner and after-dinner.

I have to admit I don’t remember too much of that evening, but one absolutely weird incident I have to share. While I was sitting and enjoying a beer, Chris, a friend of mine came to me with a quite surprised look on his face and asked me to come with him. Apparently this local guy called Smiley was able to read hands and found out something quite personal about Chris. So ye, scientifically educated as I am, I let him read my hand and I’m still amazed by what he concluded. “When you were young your parents made you learn how to fight”, which is absolutely true… I even remember the day my mother called a Pencak Silat school in Zwolle to have me train there, where I stuck for 8 years. Black magic apparently still exists in Indonesia. Someone care to provide me a plausible reason for this guy knowing this?

At least the next day the weather was better, which leaded to us spending the day at the beach, getting sunburns and having dinner and really not doing anything worth mentioning. Or taking any pictures worth mentioning. In retrospect, that dinner gave Sam and me a foodpoisoning, but damn those shrimps were good.

Coming weeks

I’ve decided to do less partying during the week and pay more attention to school. So this is where my rhythm is supposed to be kicking in. From now on it will be all studying and spending my time wisely. There’s still a trip to Pulau Tioman in Malaysia being planned in a few weeks. Next Saturday I’m probably going to the DMC championships.

And in the recess week, starting 22nd of September, I’ll maybe go to Thailand or Bali/Lombok… only time will tell. And for the rest, I got word from Eindhoven our weekly Intermania meetings started again. Which means that I’ll be writing a small article on how Singaporeans do not understand a damn thing of environmental psychology!

en ettor, alvast een haeahahehehaeaha op de spitsvondige comment die je gaat plaatsen!

In ‘t Audt pubquiz

Tuesday, June 3rd, 2008
Our teamname was the only good thing about the quiz to be honest

Our teamname was the only good thing about the quiz to be honest

I want to forget about it, but I also want to write about it. We played with our Intermania bunch and I really expected us to do well. I mean, I had the idea we would know a lot of stuff. But we finished second last and didn’t even correctly spell ‘applaudisseren’, which is quite shameful for people that make a magazine. And we didn’t know a shitload of stuff. I mean, it’s supposed to be trivia in a quiz like that, so people with no lives that press random article on wikipedia should do good, but I kinda had the idea we were people that do exactly that. But yeah, we didn’t. A hard lesson in modesty, something that might be good for us.

 

Ah well, one of my illusions just got destroyed… Or maybe we were just smarter than that pubquiz! At least we had the best name…

Happy Birthday!

Wednesday, May 21st, 2008

Oh man… good weather leads to slacking, slacking leads to having to work extra hard further along the road, having to work extra hard further along the road leads to sleepless nights, sleepless nights lead to weird IRC convos.
At the moment I’m really not enjoying school. I am on the verge of missing a few deadlines, so I’m really putting some effort in my work now. Too bad that todays work consisted of finding trivial answers to trivial questions. I mean… the whole perceptual side of JPG-compression is somewhat interesting. From a computer science point of view, as well as from a photographer point of view and even as a psychologist to be. But when making exercises equals debugging a teacher’s Matlab code and doing the same trick over and over and over again, the fun kinda gets… less.
Ah well. At least I can use this as an excuse to stay up late and make weird blogposts right?
Happy Birthday Mystikal!

IRC Log

IRC Log