Dan Russell, a full-time research scientist at Google, wrote a series of post on sensemaking at the Creating Passionate Users Blog. In the first post, Sensemaking 1, Dan starts with an interesting question: “How do you make sense of something that’s big and complicated?” Dan, then goes to [...]
I am starting to think about programming systems for kids. My son is 4 years old now. He likes to play with the computer, just like his dad. He also started to like the text editors I used when writing programs, specially because the colour of the words [...]
Tim O’Reilly published an interesting post on the State of the Computer Book Market . One thing that caught my attention is the fact that Data Analysis related books are gaining some traction. Could that be related to the fact that businesses are realizing how important it is [...]
From ZDNet, we have that:
“More software companies are finding that the best way to make money with software is to give it away, cherry-picking open-source software practices for commercial gain.”
The complete article is available here.
Hello,
Here is a new version of my clustering program using the Perl Data Language.
Cheers,
Lino
#!/usr/bin/perl
use warnings;
use strict;
use PDL;
# fcm: fuzzy c-means implementation in Perl
# usage: $fcm [number_of_clusters] [fuzzification_factor]
# [max_iter] [tolerace]
# returns: prototypes, partition_matrix
#
#
# reading data
#
my ( @data, @tmp, $number_of_patterns, $max_row_number, $max_column_number );
while (defined(my $line = )) {
chomp ($line);
@tmp [...]
I know I have not updated this Blog in a while but I am back! The last couple of months, I have been quite busy improving my Perl programming skills and learning to use the Perl Data Language (PDL). In the coming posts, I will share my experience using the PDL.
Cheers,
Lino
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