sigh

I'm supposed to have gotten off this thing, but whatever. A quick note.

I am quite amused that Kylie Minogue was in the Street Fighter movie. lol :)

I really gotta see that movie sometime. And Mortal Kombat II, for that matter.
  • Current Music
    The Reason feat. Sara Quin - We're So Beyond This

eternally unconvinced

I have come to the conclusion that I absolutely despise facebook, as a company, and am permanently quitting. In as soon as a week, I suppose. I also despise LiveJournal and am quitting that too. The reason for the delay is so that I can get a blog and such nicely rolling on my own domain/host.

I also highly recommend the use of an RSS reader to keep track of websites. I have been using Vienna for Mac, though I'm sure you can find your own for whatever systems you use. RSS readers allow you to escape blog-vendor-lockin as we experience here with LJ (the "I can't keep track of my non-lj-friends" thing).

Anyway, I'm looking for intelligent writeups about the theory of randomness. If you have any recommendations please please let me know! However, I am not interested in colloquial bastardizations of the term (ex. "that was so random lol"), and the relevant Wikipedia pages have been subject to disturbing amounts of both vandalism and misunderstanding. Sigh.

See, I'm working on my own set of lectures on Statistics. As probability theory is very relevant to statistical theory (I'm not sure the latter explicitly relies on the former.... but does it? That question is seriously haunting me!), I would like to begin at least with a mention of probability. But probability is subject to a number of different interpretations; at least two, anyway (are there more? I need to find out!). And I believe this distinction is in some way related to the various understandings or definitions of randomness. Of which there appear to be many; although I'm having difficulty finding descriptions of them.

I would like to even go so far as to define probability theory as the study of randomness, but this is perhaps unconventional. Furthermore, Kolmogorov's axiomatic basis for probability theory does not require any mention of randomness; so some mathematicians may protest. *shrug*

Despite all my worry about these problems, I'm really trying to make Lecture 1 jump right into statistics, without worrying too much about probability theory. I wonder how much this is feasible, however, or if it will run me into horrible problems the moment I introduce a random variable. Eeks.
  • Current Music
    Le Tigre - TKO

perl

ugh, I'm trying to fix some bad old perl scripts. I wrote them, but they make no sense to me. Some wonderful "features":
  • a line of code is commented with the ominous: # MISERABLE HACK

  • the variable $crazytime. I don't know what it does :(

  • some syntax in this code breaks vim's syntax highlighting. sigh...

This should be a fun night.

It doesn't help that I'm now hopelessly obsessed with Sonic.
  • Current Music
    Ali Tabatabaee & Matty Lewis - His World

horse and i

omg! a post! but really.... a rant about independence.

Lately I've been frustrated by attempting to rewrite the regression coefficients of a linear model in terms of the correlation coefficients between my explanatory variables. I was hoping, rather, to find some resource somewhere with the formulae I require. Everything I've found, au contraire, in textbooks, lecture notes, the intarwebs, etc., has fallen terribly short. For now I'll concentrate on one little problem that confused me greatly for a few days of otherwise-blissful vacation.

In the statement of multiple linear regression, there are three different uses of the word independence:
  1. Linear regression literature will speak of the independent variables, usually denoted X_ij for all j, which are also called the explanatory variables, the regressors, the predictors. Regression likes to call them "independent" variables simply to contrast them with the "dependent" variable, y_i, also called the response variable, the regressand, etc.

  2. A fundamental assumption of most linear regression analysis is that each sampled data point is statistically independent of the others. That is, the random error terms (epsilon_i) are statistically independent of each other. This says nothing of the explanatory variables (but does help to describe the response variable y_i).

  3. In multiple linear regression (where we have multiple explanatory variables, that is, X_ij for a range of j), the "independent" explanatory variables must be linearly independent of each other. If this is not true then there is the problem of "multicollinearity", and the regression coefficients are not uniquely specified.

In particular, one can quite well perform a linear regression when some explanatory variables are statistically correlated. But not if they are perfectly correlated (a correlation coefficient of +/- 1), as that would mean they are linearly dependent, and we violate rule 3.

What boggles my mind, is that after gouging through dozens of references, I have not found any resource that mentions these multiple inconsistent uses of the same word in the same setting! At least Wikipedia actually states that it means linear independence for rule 3, on its regression analysis page. But some texts may as well have written: "The independent variables may be non-independent so long as they are independent", although that might have answered my question if I knew how to interpret it.

And in case you were worried, there are of course ways to continue an analysis if the assumptions of 2 and/or 3 are not met. Although, these methods may be undesirable. Mwaha.
  • Current Music
    Stars - Your Ex-Lover is Dead

rollerblades = luv

I finally have some rollerblades! I'm soo happy and excited about them. I'm pretty bad at skating still but I'm not as terrible as I thought I'd be. My new K2's are much better than the old pair I used to have, so I'm still getting used to trusting them to go over bumps smoothly etc. Anyway, it's much faster to get to campus now :)

Stuff is busy. I want to code webapps. I've been very appreciative of the videos at the YUI Theatre, and watching them instead of doing my work. Work is going okay.... but I should be trying to find a real job. I love my current hobo-jobs though.

I love summer. The weather makes me soooo happy. And rollerblading :D

Mr. Tenty pointed me to the Ontario electoral reform referendum magic thingy happening that I hadn't heard about. Propaganda site here. You'll get to vote yay-or-nay for the proposed system in October's provincial ballot. I'm probably going to be against, but it will take me a while to figure out enough of the system to have an opinion either way. I'll probably post a rant about it here sometime.

If you do go to that site, though, be sure to check out Billy Ballot! (warning: flash)

Also after a discussion with Mr. Tenty, I really want to use Fuse to hack in transparent opt-in file versioning into my filesystems... sigh, how come versioning wasn't taken up by the mainstream filesystems many years ago?

*shrug* And now, I must try and finish my Perl hacks for Psych people.. because I told myself that was due today. And I have a meeting in the morning where I'd like to present some performance metrics on my NMF LSA IR system.... but they don't work yet. eeks!
  • Current Music
    Teddybears feat. Neneh Cherry - Yours to Keep

nevermind

I broke it.
  • Current Music
    The Fray - How to Save a Life

cherry cherry

make: Warning: File `destiny' has modification time 43 s in the future

So much has happened, so this is mostly a catchup-post. For my own sake, really, I guess.

I'm moved into the "kinderhaus" which is happy. Prof. Ali had enough funding magically to hire me back for the summer, so I'm once again (and for the last freakin' time!) doing a Stats RA for him. Hopefully this means I can get some closure with at least some of our projects so I can kiss it all behind me and move on with my life. I'm also working part-time for the Psych dept. which is going really well too; fixing bad perl scripts and writing bad c++ code :) So life is busy but actually productive, so I'm feeling a lot less like a hobo. I've gotten mostly into a schedule, that involves sleep and work and exercise and even *gasp* cooking (sorta). I feel like I'm finally (sllowwllyy) becoming who I want. I guess. :S

Visited Ottawa the weekend before last, got to visit Nikki which always makes for insightful convo and tea. And went bowling with Katie and Robin and Momma-T-Lisa which was random and crazyfun. What was said at the table, stays at the table! I can't wait to go back, which will happen for Canada Day at the latest. Road trip anyone? ;)

I'm with Dee now which is groovacious. She got me into Heroes, but I was disappointed by the finale (no hardcore boss fight! waah)

Now that I'm getting paid more I'm gonna pick up a new pair of rollerblades! YaaY! It will be just like in Hackers ftlolz.

I might have broken my finger today by smashing it into a fat pipe I was trying to jump and grab onto. It's all swollen and purple :D

These days I'm listening to Hole, Kate Bush, Crystal Method, and a bunch of random indie my dad gave me. If that makes any sense at all. But kousu pushed me in love with Secret Mommy - Kool Aid River.

WCF is on my mind a lot. Everything is sooo... political, which seems a tragedy. I thought things were getting a lot better, but today I realized again how so many ppl in our group are still fairly in the dark about what's been going on and don't know what to make of anything. Meeting tomorrow... hopefully it helps stuff get better. Hopefully people don't give up :S hope hope hope...

Nevertheless, this coming weekend is the WCF camping retreat. Man that's gonna be awesome, just to disappear for a while. If I can go at all. I'm pretty sure I'll go.

Meh! Random post. I shuppose that's it, for now.
make: warning:  Clock skew detected.  Your build may be incomplete.
  • Current Music
    Electric Skychurch - Endless Horizon [I Love Bob Mix]

hobo time was now; then; a river of bass

Life is absolutely nuts. Wonderful weekend, with understanding (and encouraging) family, relaxing, a vacation I kinda needed to help me feel a little less of a failure. But first, for you FFVII fans: Feffiroff!! Thank you, Alex :)

My mom bought me a black macbook. It is <3 <3 computer <3. Love in a box. My best friend. My life. I require it for absolutely everything. And it's purply-blue now :) Thanks, mom. And yes, my life has become pretty pathetic.... lulz.

Researchy-work this term has been..... reeally draining. And hard. And I've spent most of it confused, poring over busted matlab code. And my prof's been disappointed because I haven't got as much done as I should be able to. Half of the problem is that I haven't been able to concentrate very much, and I can't figure out why. So that's been very hobo. And there's so much other work I need to do too, but I don't have the time. Or rather, I can't get enough done with my time lately. sigh.

I'm trying to get fixed. Awesome friends are awesomely helpful for that I find. And at least I have macbook now :)

I'm actually kinda excited to be moving (from the "comfy++ apartments" with alfedenzo to the "Kinderhaus" with g4c9z; although he probably doesn't know it yet!). That will happen later this month, although it's not tooootally confirmed (but I think math_foo has confirmed). I dunno why, maybe just the change of scene will help. Moving excites me; sleeping in a different spot. We'll see.

Easter turkey is splendiferous. While incidentally downtown I popped by kousu's place but he wasn't home but his housemate let me in to use the bathroom which was super-nice :)

I have applied for M.CM! We'll see how that goes!! Here's hoping :) I almost didn't apply but then Ali talked me into it. And Prabhakar gave me a reference which is super-awesome-nice. I hope I hope I hope it works. But I'm not counting on it. But just getting references makes me feel like much less of a hobo.

Driving back to uw tomorrow. Hopefully noone else remembers the past week, or two. I'm trying not to. I'm looking forward to some refreshing de-hobo-ification.

WCF stuff is freaking nuts. But I think progress is actually being made. It feels kinda nice, after struggling for so long...... I just hope it works. There's still so much I want to get done on that end... and I'll feel pretty crummy if it all results in nil.

This was a terrible blog post. But it'll have to do for now. Happy Easter, all who care.
  • Current Music
    Underworld - Juanita / Kiteless / To Dream of Love

makittymacmac

Oh my goodness: soooo cuuuuuute!

Ali (friend, not prof) was in town the week before last. It was awesome hanging out with him again, if only for a little bit.

Work has been crazybusy, as usual, but furthermore I've been slow at getting things done. Largely because I've been distracted by shiny things. And those shiny things are macbooks.

Last week, in a tragic collapse of willpower, I bought the cheapest lappy the FutureShop had. It was an Acer and it was a piece of trash; I spent the weekend laughing at it, its shoddy hardware, its pitiful attempt to run Vista, etc.. Debian wasn't much happier than Vista. It turns out the Acer recovery CD expects that the harddrive is intact with its magic Acer Recovery Partition, or it can't recover anything (wtf!?). I wanted to replace the OS with Vista before returning it to the FutureShop, but even the Vista CD couldn't reinstall Vista; it would just bluescreen and reboot after "installing". This is after the lappy's primary OS was set to Minix at one point so I could format the drive and stuff. Warning: Minix's partition app is shaaady!!! lol. Anyway, FutureShop took back the shoddy Acer, and I got my monies back. Yay!

Last week I had a dream of black macbooks flying around, like I was swimming with them in space. The next day I found this which is basically a video of my dream, and to the tune of a song that I was listening to lots around the time that my macbook was stolen. Wow.

I talked to the bank about lending me money for a black macbook, but they decided I was too hobo. I pondered the shady-beyond-all-reason FutureShop Credit Card, but decided that they are hobos. Then my mom called me randomly on Friday to ask if she could buy me a lappy, a good one. My mom is seriously the most awesome mom ever.

Catherine (my younger sister) had medschool interviews this past weekend at Queens and UofT. So on Sunday I went to visit her and my mom in Toronto, and we had a sensational brunch at some fancy French restaurant downtown. It sounds like her interviews went fabulous which is very happy :) And my mom gave me mad mad cash to buy a macbook, more than I was expecting her to pitch in (and so very voluntarily!). YaaaaY!

I am very excited to be getting a happy black macbook. I've already ordered happy things with which to make it pritty and not get scratched. Although, I'm not as hardcore as these people.... yet. But writing code is about to get much happier!!

I'm feeling much less hobo than I did last week.

Lots of other crazy stuff happened in the past week. I had a meeting with one of the WCF IVCF staff workers where I basically told him off and asked if there was anything I could possibly do to convince him and the others to leave. His response was unsurprising and depressing. I feel pretty crummy about the meeting, but I feel worse about the state that WCF's in, and that I must acknowledge that it's never going to change; not unless the Feds step in on the club's behalf. It's all very sad.

But I'm getting a macbook so life is awesome :D Now, back to work!
  • Current Music
    Mo-Do - Super Gut [happy rave '95]

isopants

What a beautiful morning. I'm so glad I've been up to enjoy it! 1-degree weather, the snow was sooo clean and fun to play in. My pants are soaked from rolling in the snow, and dunking my head into random 'banks; Malcolm-inspired. Booya.

Sunday afternoon I bought a used cheap*cheap clunky laptop from some guy in engineering. It was kinda sketch but would have been beautiful to code on. Sunday night it stopped turning on. Yesterday I visited the guy again and he was super-nice and gave me all my cash back for it!! Even though it had pritty Digimon stickers and was running Debian (altho I don't think he's discovered the latter yet!) So now I'm very happy and hav moniez :)

holdenk was somehow able to talk sense into me, that I really can't afford a lappy right now anyway. Clearly I have bad luck with them ;) but I'm back to being content with my crummy computing circumstances. Hurray for responsibility.

Hung out with The Prof for a while in the MC tonight watching stupid YouTube videos :D And so I bring you, Polysics:
Polysics - I My Me Mine
Polysics - Electric Surfin' Go Go
<3 <3 <3 despite it's Japanese. Thanx Prof!
  • Current Music
    Michelle Branch - All You Wanted