The world is round?

Some time ago the men discovered that the world was round, not a flat disk as they have been thinking; they came with that conclusion after analyzing the sky, the objects and everything that is involved in the space.

But not everything is as we believe, look at these watermelons in a Japanese supermarket, who have been saying that they are all round?

And if you look to the price your eyes will turn, maybe, in some of this kind of shape…

[Hey have you try Windows Live Writer? this is my first post with it…]

Posted by Vadim Zendejas 18.Sep.07 Daily life, Japan Read more Comment (1)

Spam Filter

Today, the “Fuji Sankei Business i” newspaper in Japan, published an article about my research of Information Security at The University of Tokyo. The topic of the article is “Time Based Spam Filter” (in Japanese).

These proposed spam filter works using the time information of the email to classify it as spam or not-spam. The actual accuracy of the filter is around 90%. One of the pros of this filter is that is full-independent of the language of the email and is one of the most efficient spam filters. These give us a great tool for implementing in mobile devices or as a auxiliary method to fight spam.

This research was submitted to the WISA2007 (10th International Workshop on Information Security Applications) ICICS2007 (The 9th International Conference on
Information and Communications Security) conference that will be held in Korea China at the end of August December. The proceedings of the conference will be published in the Springer LNCS (Lecture Notes on Computer Science).

Here you can download a copy of the article published by the newspaper:

The full article of the research will be available for download after the conference at the Springer homepage.

Posted by Vadim Zendejas 27.Jun.07 Technology, Security, Research Read more Comments (3)

Recommended sections

I just modified the template of my photo gallery so it will be easier to find new events and other sections if you are navigating around. You can see my full gallery at gallery.vadimzendejas.com.

I added also a new section called “recommended sections” with a huge collection of my best shots and some really nice photos by my friends. Here are some of the recent albums added to this new section:

I hope you like it! Any comment will be appreciated. Thank you and visit my gallery here.

Posted by Vadim Zendejas 07.Jun.07 Design, Photography Read more Comments (5)

‘86 Mac Plus vs. AMD DualCore

Hal Licino just published a study at hubpages.com about a comparison between efficiency on basic operations in two computers. That is not new, but the interesting thing is that one of that computers is 21 year older than the other!

The two candidates where a ‘86 Mac Plus running System 6.0.8 OS and a AMD DualCore running Windows XP SP2.

And who you think that is the winner?? Unbelievable but the Mac Plus was faster than the AMD DualCore in 53% of the operations tested!!

The tests consist of simple, but most used operations that current office users use in normal environments in Word and Excel. And the article claims that “the massive advances in technology in the past two decades have brought zero advance in productivity“.

Here is the link to the article if you want to see the details of the test:

“86 Mac Plus Vs. 07 AMD DualCore. You Won’t Believe Who Wins”

This is the machine that won to the AMD DualCore:

Posted by Vadim Zendejas 02.Jun.07 Technology Read more Comment (1)