Ramkumar’s posterous

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seminar.pdf (168 KB)

I delivered a talk on curve fitting today in the physics department
seminar room. This is the presentation I used. The objective of the
talk was to familiarize everyone with the chi-square distribution and
chi-square fitting without focusing too much on the implementation
details. Since the complete audience didn't have background knowledge
of probability theory, I had to briefly touch up some concepts like
Cumulative Distribution Function and Probability Density Function.
Overall, I think the talk came out alright, although it was apparent
that some of my fundamentals were holed. It's a miracle it even came
out, considering that I was delivering it on a paracetamol-suppressed
headache and fever.
 
Finally, LaTeX + Beamer is too awesome!
 
Edits:
1. The zeroth central moment is one, not zero.

Let the screenshot speak for itself. It's not just me. Looks like
nobody has been receiving updates for the last 30-odd minutes (and
counting). They're obviously having massive replication problems.
Quoting @ghoseb off IM: "twitter devs are lazy. with all the money
they have, they could've fixed it all. scaling is a problem, but it
doesn't take 2 years to fix"

So why twitter?  How does it help anyone?
 
The future of social networking. It's _way_ more dynamic than
classical social networking sites (Orkut, Facebook, MySpace etc).
Several people have predicted that Twitter will catch on faster than
anything else.
 
Twitter is so simple, it confuses many people. It gives you 140
characters to say what you want. Everyone can subscribe to each
others' tweets (these 140-character updates). Look at my Twitter page
for example: http://twitter.com/artagnon. It says "411 following, 376
followers, 1374 updates" and shows you my last 20-odd updates.
Meaning, in my Twitter lifetime, I've posted 1374 tweets that the
public can read. 376 people are following me, and are actively
listening to my tweets. I'm following 411 people and actively
listening to their tweets. These numbers obviously keep changing.
 
Ofcourse, social networking centers around interaction between human
beings. There are two additional concepts in Twitter: replies and
direct messages. On my page, you'll see some messages like @aditya,
@devakishor etc. These are special tweets (also public) meant as
replies to tweets posted by those people. Direct messages are used to
contact people on Twitter exclusively, without letting the rest of the
public know. It's sort of like email.
 
That's all there is to it, really.

I thought it would be a good idea to do the in-thing, you know. So as
not to get too bored in the room during vacations and to relieve my
frustration after a brain-dead class/lab. So I decided to install
Counter-Strike and play on the LAN with others. Bad idea. Really bad
idea. I suck so badly at it, it's not even funny. My normal CS
routine:
b42 b6
Move around a little bit
Get killed within the first 10~20 seconds of the game
Wait for everyone else to die
Loop
 
*sigh* It only increases my frustration levels now.

 
Gets the message across pretty effectively.

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Web_2.0_BarCamp.pdf (689 KB)

Yet another file I found in the attic of my hard drive. I used this in
BarCamp Kharagpur over a year ago. I especially like the "feather
slide" :) It's useless without the notes view, really.

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Networking.pdf (844 KB)

I found this presentation in the attic of my hard drive. It's amazing
how I can laugh at something I made just two years ago.

I recently migrated to StumpWM + Emacs. Even my web browser is
Emacs-like now- I switched to Conkeror.