Saturday, July 29, 2006

K.L. Method


The most popular statistical method for dimensionality reduction of a large data set is the Karhunen-Loeve (K-L) method, also called Principal Component Analysis.

Principal component analysis is a method of transforming the initial data set represented by vector samples into a new set of vector samples with derived dimensions. The goal of this transformation is to concentrate the information about the differences between samples into a small number of dimensions.

More formally, the basic idea can be described as follows: A set of n-dimensional vector samples X = {x1, x2, x3 …, xm} should be transformed into another set Y = {y1, y2, …, ym} of the same dimensionality, but Y have the property that most of their information content is stored in the first few dimensions. This will allow us to reduce the data set to a smaller number of dimensions with low information loss.

Thursday, July 27, 2006

Discovered Friend's Blog

Found a few blog of my friends. Added to the navigation links to the right.

Wednesday, July 26, 2006

Business Trip in Kerteh - Part Five



Usual day breakfast in resort. Variety of food includes Terengganu's Special, Western, Chinese, Malay, Indian, Cereal, etc.



Almond Rocha Mocha, is just a mixture of mocha with topped cream. Cost me more than RM14.



Giant chess set for play.



This is the place where you can rent golf shoe, golf set, buy the token for golf balls and other sports equipments. Drives by the impulse to try Awana Kijal's driving range, I rent the following:

Half golf set -> RM 25.00
50 golf balls -> RM 5.00

I didn't rent the golf shoe and thus the personnel warned me of the possible risks of getting injured and the shop will not be liable on it. Blah.. blah..



Embrassment occured when I tried to get the golf balls out from the auto-dispenser, I forgot to put in the basket before activating the dispensement. Can you imagine 50 balls flushed out from the machine and scattered around the driving range? Hahahaha, please keep it as secret :p. I spent around 1 hour for swinging out 50 balls. Not a bad driving range, just that some part of it still under renovation.