Optimal algorithm: Linear Programming

This week, i have learn about Linear Programming and using simplex algorithm

Linear programming (LP, or linear optimization) is a mathematical method for determining a way to achieve the best outcome (such as maximum profit or lowest cost) in a given mathematical model for some list of requirements represented as linear relationships. Linear programming is a specific case of mathematical programming (mathematical optimization).

[wikipedia]

Then I could give you some example, this is the popular problem called Diet Problem. The decision about how much of each food to buy (or eat) is to made entirely on dietary and economic considerations. And they will provide us the table of cost or nutrition stuff in order to support the question. Somehow if you ask me, i'll select my favorite first and eat them all. (LOL)

Last Thursday, I had chance to had a lunch with our lecturer and we were talking about some funny stuff in term of Duality. We discuss about how we should eat, should we eat the favorite food first or keep it for the last. My friend said, 'I'll save the best for the last'. I think this problem object to the maximum value, you eat them all but keep the best for the last. Then mine was different, I'll eat my favorite food first in order not to full at the last. So it might be object to minimum value. Subject to the quantity and quality of food. If save the best for the last is Primal, then eat the best first should be Dual for sure!

PS. don't believe my word this time, we just made fun because our optimization method teacher was with us that time. (LOL)

FIBO Open house 2012

Hi!
Since I have no progress about my lab last week so i need more inspiration and i have to work harder!

Last Friday, i have chance to go to 'FIBO open house' at KMUTT (yeah, it's my workplace, i just want to make it has more power) in order to find my inspiration about my work at the lab. [plus: I found out about this exhibition from the advertise from ATM!] At that exhibition, they have a lot of innovations in field of robotic which invent and develop from FIBO. [plus: FIBO is institute of FIeld roBOtics]

This is the winner of best technique from SCG Thailand robot.

Hello, my name is Nang Namo, nice to meet you.

Hi! I'm Nong Ohm. (even he is Namo's younger brother but i think Namo is more clever than him.)

In the exhibition

aviation technology

Goal keeper, so smart (but not much accurate lol)

There are a lot more inventory that was really cool but I forgot to take the photos. (LOL)

By the way, i have some video for the robots performance, they were really cool!

Goal keeper.

Namo Sawaddee ka.

Find out more about FIBO: http://thairobot.org/

Be creative :)
Patama Ramchune

TGGS Building Opening Ceremony

TGGS Building Opening Ceremony on 30th November 2011. This is a very special occasion for KMUTNB. I had an opportunity to have an audience with royalty in that event. TGGS building Opening Ceremony by HRH. Princess Maha Chakri Sirindhorn. It's another moment of my life after my Graduate ceremony. After the building opening day, we have the TGGS open house to show many stuff that belong to each faculty from TGGS in order to show what we having so far, what is new technology that we are work on and including the guild for the prospective student who want to continue Higher education. find out more about the exhibition; http://www.ia.kmutnb.ac.th/doc/internews/doc20110914-01.pdf?docid=doc20110914-01 (the last page after the IASTE news.)
By the way, i wrote this blog for showing you my picture on the background of the newspaper, Dailynews, 2 December 2011 on page #5. I felt totally overwhelmed -even i just stay at the SSE booth and present nothing. :)

Can you see me? I am the girl who wear the black uniform. ^^

Looping with Garage band

Hi!
During the longggggg vacation in thailand (because of flood), I have a big free time to try some fun stuff with Garage band. One of my dream occupation is DJ(ing). I would love to make my own track, not just cover. I made some music when I was in Uni but it wasn't good. I invested in Midi controller to made music but all I can do with it was just playing like a piano. :P Now I know how to work with it, i'll try to make more track. Here are some experiment with garage band. I was very easy just drag and drop.

Soda POP
This song I called it "Soda Pop" I made it for my friends' game project. Soda pop is the name of my first performance in music school so this version is just remix. This one is not from Garage band, it was the default program of my midi controller.

Soda pop-Nuana by patamania

Underground Groove
This is my first original song called underground groove and this is what i call ตึ๊ดๆ but I don't like this song. The sound was very.... old fashion.

underground groove by patamania
Exotic Acrostic
It sound like a little bit asia, my friend said it suit me (LOL). I called it Exotic Acrostic because of the loop name. (LOL) And yep, it sound exotic to me too. This is my current fav song that i have made.

exotic acrostic by patamania
(WTHeck! i can' embedded this song by iframe)


3:1 This night
This one I want to try something ตึ๊ดๆ like dance song in the club, i found that the peak of the electronic song in the club is when the melody and tone was rose up so I put it twice (hahaha). I don't know how to called this song, so 3:1 was the score of football match that I watch that night, it was Thai-Indonesia match in SEA game.

3:1 this night by patamania

Next time I'll try more ตึ๊ดๆ and longer.
Enjoy ;)

Software Engineering

I'll have the SE final exam this Friday. I have new method to walkthrough all the topic that i have learn from school, which is mind map! I always use mind map to implement my work, why I don't thinking about to use with studying. It was really save time, I can get all concept of the lecture (at least I'll know the entire topic :P - Hey! it's take time to improve, okay!) Then, today I made another mind map for Software Engineering subject, after finish ..... it didn't make me feel any happy! Why we have so much lecture just only 1 semester! Here is just an outline, not yet the detail! Fortunately, it's open book and open machine test. Wish me good luck!

Longest Common Subsequence (LCS)

This is the presentation for Efficient algorithm about Longest common subsequence.

What is LCS?
The longest common subsequence (LCS) problem is to find the longest subsequence common to all sequences in a set of sequences (often just two).

The application of LCS is for finding the common in text string meaning that sometime it used for checking that the code from 2 source are the same or not (so crew for copy, right?) or finding the common in DNA if you want to find if someone is your relative or not (LOL).

How to do this?
Follow my slide is okay (haha): https://docs.google.com/leaf?id=0B-Ls4RhAgiHeMThmYTYxOWQtZTdkZi00NDNjLWI0NDUtZTllMDY0Y2RhMTM3&hl=en_US
For the flash slide to see step by step: Click the arrow at the bottom to see the step
View on ShareSWF you can download from this link: https://docs.google.com/leaf?id=0B-Ls4RhAgiHeMmY5MDZmZjItYTRlOS00ZDI5LTk1ZWEtNTU2NTEyZmNkOWMx&hl=en_US


good luck (my way)
Patama

Dropbox

Today i'm gonna talk about my distributed technology study and my topic is Dropbox!

First I want to tell you that what will be present today, I'll introduce you to the what is dropbox, concept of Dropbox, How dropbox work and some sample of dropbox if we have time. You may have this kind of problem, like me today, i have to present but I have problem with computer and forgot my USB drive! then you may realize that you need a service that can provide you the resource and you can access anytime with any machine. Umm, kind of interested, isn't it? And that's why Drew Houston founded Dropbox in 2007 and officially launched at 2008 and become more popular in rapid period.

Well! you might want to know what is dropbox, right?

Dropbox is a web-based file hosting service. it uses cloud computing to enable user to store, like here if your computer have a problem like it's on fire or broken. it's no problem if you drop your file on dropbox. And you an share file and folder across the internet using file synchronization. Another feature is keep track, back up of your file, no matter you accident edit your file, you can see the log file here. (เปิดหน้าของ dropbox ให้ดู) And the cool things that i love are multiple OS, big storage (you know for free user, it's start from 2 GB! and you can add 250 MB if you invite other to join Dropbox) and because it can use by multiple format, that mean you can sharing or access the resource anytime, everywhere or whatever if it connected to internet.

Here i'll show you that dropbox can use for any format; window, ubuntu, mac, this is on my smart phone and here is via Dropbox webpage if you didn't install the application.

As I said, Dropbox uses cloud computing to enable user to store and share. Then I wanna tell you the overall image of cloud? I can't tell you more detail about cloud computing, in fact Thee will present us about cloud computer next week. what does it mean?

You know? The concept of cloud computing fills a perpetual need of IT: a way to increase capacity or add capabilities on the fly without investing in new infrastructure, training new personnel, or licensing new software. Cloud computing encompasses any subscription-based or pay-per-use service that, in real time over the Internet, extends IT's existing.

Advantage:scalable, paid only when needed and can be used by any device with a connection to the net directly or by using client programs. actually it can use offline, but the resource is from your computer, in fact, it's on your computer. i'll tell you later how it's work!

Other application: In face, there are another service apart of Dropbox such as Ubuntu one, Box.net, Zumodrive and so on. you know some service and provide more space but I present you the Dropbox because it's the popular one and it seems to be the most stable service now.

How does it work?

- First when you install dropbox application on your computer, one directory on your computer is designated as the drobpox.

- Files placed in the Dropbox are automatically synchronize to cloud. Changes propagate to other machine in your Dropbox network from the cloud.

- Once files are completely synchronized, a green checkbox appears on the bottom of the file or directory icon.

We know that Drop box is a service to share and to share need the client to synchronize. I would say it's intelligent synchronization.

- when files change, only the binary diff is transferred.

- Files are compressed as they travel over the internet.

- If two people modify the same file on separate machines, the first submitter wins. and the second submitter's file is also synchronized.

Where are the files stored?

- If you have installed the Dropbox desktop application, your files are stored both on your computer (in your Dropbox folder) and on Dropbox's secure online servers.

- All files stored online by Dropbox are encrypted and kept securely on Amazon's Simple Storage Service (S3) in multiple data Centers located across the United States.

What is Amazon Simple Storage Service? (Amazon S3)

Amazon S3 is storage for the Internet. It is designed to make web-scale computing easier for developers.

Amazon S3 provides a simple web services interface that can be used to store and retrieve any amount of data, at any time, from anywhere on the web. It gives any developer access to the same highly scalable, reliable, secure, fast, inexpensive infrastructure that Amazon uses to run its own global network of web sites. The service aims to maximize benefits of scale and to pass those benefits on to developers.

Dropbox can be used profitably for distributed evolutionary algorithms, without the need to acquire or set up complicated cloud or grid infrastructure; besides,

Using tools available in every classroom,lab, office or home and freely available over the internet with a good scaling behavior can be set up to perform heavy-duty evolutionary computation experiment.


Here is my presentation for the class: https://docs.google.com/leaf?id=0B-Ls4RhAgiHeOWU4NTI2YzQtMzgyNS00MTRhLWIyZDItNGQ0YTA5OGRlMjcy&hl=en_US