::: My Idea Blog :::

Code Quality test with Continuous integration

2012-12-03T23:40:00.000+07:00

Last time I wrote about what is code quality and how to measure. Today it’s going to be an implementation of code testing with opensource and continuous integration with Jenkins.

The concept is test code from the following tools and executes to xml and show the result from Jenkins plugin.

Code we have are:

C-code (from Eclipse)

Code Metrics

Tool: CCCC http://cccc.sourceforge.net/

Jenkins Plug-in: Jenkins CCCC Plug-in https://wiki.jenkins-ci.org/display/JENKINS/CCCC+Plugin

A free software tool for measurement of source code related metrics. The CCCC tool was developed as a testing ground for a number of ideas related to software metrics.

Report: This table shows measures over the project as a whole.

NOM = Number of modules
Number of non-trivial modules identified by the analyser. Non-trivial modules include all classes, and any other module for which member functions are identified.
LOC = Lines of Code
Number of non-blank, non-comment lines of source code counted by the analyser.
COM = Lines of Comments
Number of lines of comment identified by the analyser
MVG = McCabe's Cyclomatic Complexity
A measure of the decision complexity of the functions which make up the program. The strict definition of this measure is that it is the number of linearly independent routes through a directed acyclic graph which maps the flow of control of a subprogram. The analyser counts this by recording the number of distinct decision outcomes contained within each function, which yields a good approximation to the formally defined version of the measure.
L_C = Lines of code per line of comment
Indicates density of comments with respect to textual size of program
M_C = Cyclomatic Complexity per line of comment
Indicates density of comments with respect to logical complexity of program
IF4 = Information Flow measure
Measure of information flow between modules suggested by Henry and Kafura. The analyser makes an approximate count of this by counting inter-module couplings identified in the module interfaces.

Code analysis

Tools: http://cppcheck.sourceforge.net/

Jenkins Plug-in: Jenkins Cppcheck Plug-in https://wiki.jenkins-ci.org/display/JENKINS/Cppcheck+Plugin

CPPcheck is a static analysis tool for C/C++ code. Unlike C/C++ compilers and many other analysis tools it does not detect syntax errors in the code. Cppcheck primarily detects the types of bugs that the compilers normally do not detect. The goal is to detect only real errors in the code (i.e. have zero false positives).

Report:

Out of bounds checking
Check the code for each class
Checking exception safety
Memory leaks checking
Warn if obsolete functions are used
Check for invalid usage of STL
Check for uninitialized variables and unused functions
http://sourceforge.net/apps/mediawiki/cppcheck/index.php?title=Main_Page

C# code (from Visual Studio)

Code Metric

Tool: CCM http://www.blunck.se/ccm.html

Jenkins Plug-in: CCM Plug-in https://wiki.jenkins-ci.org/display/JENKINS/CCM+Plugin

CCM is a tool that analyzes c/c++, c#, javascript and Typescript code and reports back on Cyclomatic Complexity, a metric introduced by Thomas McCabe back in the mid 70's.

This metric states the number of independent linear paths through a unit of code and is useful to determine how complex the unit of code is (for this particular tool, a unit is a function or a method).

Report:

Cyclomatic Complexity metrics

Code analysis

Tool: FxCop www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=917023f6-d5b7-41bb-bbc0-411a7d66cf3c

Jenkins Plug-in: Jenkins Violations plugin https://wiki.jenkins-ci.org/display/JENKINS/Violations

FxCop is an application that analyzes managed code assemblies (code that targets the .NET Framework common language runtime) and reports information about the assemblies, such as possible design, localization, performance, and security improvements. Many of the issues concern violations of the programming and design rules set forth in the Design Guidelines, which are the Microsoft guidelines for writing robust and easily maintainable code by using the .NET Framework.

Report:

FxCop is a tool that performs static code analysis of .NET code. It provides hundreds of rules that perform various types of analysis.

Design
Globalization
Interoperability
Maintainability
Mobility
Naming
Performance
Portability
Reliability
Security
Usage

What make Quality of Code/ How to measure?

2012-10-15T16:31:00.003+07:00

What make Quality of Code/ How to measure?

To make sure that your code is well running together with the other, you might need to have standard or tools that you and your team could work

Code Metrics

Code metrics is a set of software measures that provide developers better insight into the code they are developing. By taking advantage of code metrics, developer can understand which types or methods should be rework or have more tests.

There are some common measures that we could use;

Total line of code
Line of duplicate code
Unit test coverage
Coding standard violation
Program execution time
Program load time
Ratio of comment and code

Code Standard

MISRA-C is software development standards for C programming language develop by MISRA (Motor Industry Software Reliability Association). Many developers from embedded systems specification always refer to MISRA C Standard for the work that needs high reliability.

MISRA also has more users outside the original specification. They realized that in many areas of an automobile design, safety, portability and reliability is importance. They has evolved as a widely accepted model for best practices by leading developers in sectors including aerospace, telecom, medical devices, defense, railway and others.

The result was a set of “Guidelines for the use of the C language in Vehicle-Based Software” or “MISRA C”. The first published guideline comprises a 70-page document that describes a workable subset of C to avoid many of well-known problems. The MISRA C document contains 8 chapters and 2 appendices and was obviously written by experienced embedded programmers. Chapters 1 through 6 contain important information about the rationale for MISRA C and how to interpret the rules. These Chapters should be read prior to diving in to the actual rules, which are found in Chapter 7. MISRA C document is available at www.misra.org.uk for about $50.

Quality of Code

2012-10-12T21:26:00.001+07:00

Quality of Code

There are many definitions for Quality of code from my research this few days. As we know, we try to improve our code, not only for the author but also other people in the team. If I could list what are the good code should be, it should be like this;

No redundant or repeat code: if you have several lines of code with the same action, you should make it to the new function. For this advantage, you will have another short command that can reuse many times.
Code readable

Use good name for function or variable
Good comment and document
But if you have a good code it should understandable without comment. Source code itself says what the code does and how

Right responsibility for each function: one responsibility for one function.
Optimize resource/efficient: Poorly written code will not take account of resource usage, for example it will not cache information it could cache, or it will create new objects when it did not need to. These issues lead to hard to maintain applications when deployed and used.
Well organized: should be easy to find what variable goes to which function, where you locate your code.
Have code review: ask some other person for each some important part

python and opencv

2012-07-11T09:30:00.001+07:00

Install OpenCV and Python
Yesterday we had problem about installing OpenCV with python, so I tried to install on my computer and it work quite well here. I also have problem with new version of OpenCV (OpenCV version 2). It seems like new version of OpenCV is just a zip file and we need more step that we have tried but it didn’t work such as Add <...>\OpenCV\bin to the system PATH and so on.
What I have installed: python-2.6 and OpenCV1.1 (OpenCV1.1 is .exe file, so it automatically add path for us. If you found problem about downloading the old version of OpenCV, you can email me to send the link to you, it’s about 25.5 MB)
After you installed those two programs, you can try if it work or not by import these two libraries from Python shell

>> from opencv.cv import *
>> from opencv.highgui import *

If it works, it means you can use this function with python.
There are some examples that you can learn more from <yourOpenCVpath>\samples\python. They also provided the example for C if you prefer to use.

Getting start with Python
To create new project,

File>New Window, then you will have new space to create your program
Import CV and Highgui
from opencv.cv import *
from opencv.highgui import *
You can try with load image and show image here I show the image called penguins.jpg here is the program;

from opencv.cv import *
from opencv.highgui import *

img = cvLoadImage ("penguin.png",0)
cvNamedWindow("Image", CV_WINDOW_AUTOSIZE)
cvShowImage("Image", img);

while cvWaitKey(0) != 0x1b: pass

After that, for test your program just press F5.

I hope I might help you to start your project, you can email me if you have problem about programming or image procelssing. I would glad to help you if I could.

I was hacked!!

2012-07-09T23:06:00.001+07:00

When I got Hacked!

It was just this morning, I woke up at 5:30 am as usual, took a bath, check e-mail. Then I found that I was hacked and it charged from my Credit card about 23k THB! (Around 600 Euro) Oh my god! I was like stunning for 30 seconds. I got the receipt from Paypal and Skype for purchasing Skype credit but I didn’t! It reduced my Paypal money 9 times and each time with 85.40 Euro!

My transaction last night

5:55 am

First, I called my credit card provider to check is it true and yes, it already in the bill! Oh my god! Then Costumer service transfer my line to technical support (I guess) and complain that I didn’t do any transaction please check! They asked me many question to make sure and tell me that they will check and call me later. As you see from the picture, I think I was hacked by Chinese hacker for sure! They send me the information about Skype activities in Chinese and I don't understand! This morning I was in hurry because I was in the line for so long and didn’t feel the breakfast anymore. I slept all the way to work.

Email I got

8:00 am

Arrived work place but my mind still thinking about the money. For your information, I don’t have internet access on my computer at workplace. So everything I have to done on my mobile phone.

I contacted Paypal team about my problem via their web form once, and then 10 minute later I realize that I might send with wrong type of problem because I expect that they will have the auto reply email to me but it didn’t. At that time I really want to make a call but the nearest local was located at Singapore! I didn’t worry about speak English but to call to Singapore so it means I have to use long distance call isn’t it? No way! Email is okay.

Web form from Paypal

What! Singapore,

9:15 am

After that just notice that I didn’t contact with Skype yet! I was paid from Skype, how can I forgot! I send my problem to Skype team and they have auto reply email. Gosh!

Skype status

9:44 am

Got Email from Paypal, they already review my account and suggest me to cancel an automatic payment on merchant-to-merchant basis. Honestly, I don’t even know what is it, but when I did on the steps, I found that it was automatic payment! You don’t need to make a review again if you do another transaction! That’s why I have like 9 transactions with the same amount! As I told you I never know about this function, it was shock because it show that I have active this activity since 2010! I think it was my first time buying Skype credit.

Automatic payment list

Merchant detail, it started from 2010, 2 years ago! Did they just hack me or they already plan since last 2 years?

10:09 am

Got Email from Skype, they need me to verify that the payments are genuine. So I need to have a live chat with agent to give them my information. Then, I need to prepare the information such as my Skype name, email address, Paypal email, transaction ID, etc.

10:30 am

After taking a break, talking to my mother and crying, I’m ready to have a live chat! I go to Skype chat room talking to Skype Staff, Mr. G. He asked me the information about my name, my account, my email and so on. He said it seems not usual compare with my previous transaction. Then they transfer my chat to Skype-Paypal staff, for specialize my problem. Then I talked with Mr. R. He just needed to review my account and the previous chat with Mr. G. Then he said like skype team already inspect my problem, I will got the email about the billing cancellation as soon as possible and then I need to filling the form about refunding from Paypal. We finished live chat around 12:30! Wow, It was time for lunch, I think I started to hungry.

Live chat with Mr. R, finally they can provide me a help :)

1:00 pm

I finished my lunch early in order to get anything done. I got the email from Skype about charge back my order so it means skype already confirm that all transaction last night have been made fraudulently. I filled the form about transaction information and sent them to Paypal. Right after I send, I got the email about investigating status. Paypal said skype has been asked to provide more information about the transaction. During this time, I cannot do any thing via paypal until they decided and then I'll got the refund for the amount of the transaction. It was about 10 days for investigate process. So I think I won't be the problem because I already got the charged back email from skype. I hope I'll get my refund soon. I have no money to pay for sure, I don't even have money to buy stuff.

One (from 7) of the email from Paypal

This is from Skype

Note from this morning. Not only the basic information, I also prepare some vocabulary about money and privacy activities

Wow! Finally! All done before the afternoon section, then I can concentrate to my work as usual.

To prevent this experience

Skype and Paypal suggested me to change my password and security question. Moreover, they suggested to use Antivirus too. I'm not really sure, I use Mac OS. - -" And I can't believe I got hacked! As firefox said, มันช่างน่าอับอายยิ่งนัก, Computer Engineering student got hacked!

Pay safe,

Patama R.

Last but not lease

4:48 pm

I got the phone call from my credit card provider! What! Don't you think is it too late? The staff call me in order to ask for my email address because she want to send me what should I do to about this problem. She said, they provided Thai language for Thai customer (but why they go to Singapore! Why do I need to use long distance call while you have Thai language from Thai stuff! And this was really make me upset, the email said for Thai language, I need to call between 9am to 5pm but you called me at 4:48am! GOSH! I didn't complain her about how late they are, they might have many thing to do in order to email to paypal to check them for me. (- -”) because I got the email that was the forword mail from paypal team which are the same as I saw from the Paypal website except the have Thai language. She told me if I already got the email please forward all email to them to check and they will contact again if they got the refund from Paypal and Skype.

and another new place again

2012-06-19T10:26:00.000+07:00

And another new place again!
Hi! it's going to be my third week here. I'm currently join the trainee program at the factory of semi-conductor product around Bangna, Bangkok. My work here was about develop machine vision measuring system using integration of Halcon vision software and visual C#.
I will write about the work later, this blog i want towrite about the workplace. During working here, I usually called myself as "สาวโรงงาน-sao rong ngan" (girl who work in the factory). Actually, my friend called me first then we started using this word and I just like it. The office hour is super early, they start work at 8.00am till 5.45pm.(Kinda long ha?) Normally, i was getting up around 7.30am- 8.00am but now, I have to get up at 5am and arrive the workplace around 7am. Well, at least I still have time to take a nap before work.
As here is the manufactory, I expected about somewhere like the power plant that I worked when I was in the University, it was like a lot of dust, noisy place and super big. But you know, here is very clean factory! No dust in the walkway or even in the noisy sound. Because here is a factury about semi-conductor or electronic device, just a little of micro dust is unexceptable! So there are many many rule here we need to follow strictly, otherwise it will damage there products. Such as no food or drink, no photo, no mobile phone, no make up and so on at the production line. Fortunately, i no need to work at the line, some rules were no need to follow at the office. (So it was the only chance that the engineer girl will have a better look than the real sao-rong-ngan. lol) You might think, ooohh, it was so long day here. Actually, here they allowed the employee to take a break for 3 times!, morning break, lunch and afternoon break. Woo, that was strange! (but my previous workplace was not that strick, I can take a break anytime I want. As long as I send them the work on time ;P).
I might say, working here was so technical work. It was my interested field of work! Working at lab and experiment in the company! wow! I just wonder, if I'm not the student, is there any chance to work like this?
Enjoy!, Patama R.

Halcon realtime

2012-06-11T22:33:00.000+07:00

Hi, this is going to be my second week working at semi-conductor industrial factory. My work is quite interested, I have to develop machine vision measuring system using Halcon vision software and visual c#. Actually, the workers in team already have the knowledge about machine vision, they just need a programmer who can build the application file for them using c#. So they asked me to join.
Just wow for the equipment they provided for the trainee student.

my computer and lab camera

The following video is showing the measurement of angle rotation for the wafer using Halcon. At first, they already have a program that can measure the angle of the wafer but it cannot use in realtime. So I have to edit and make it run as an application for the real machine. Actually, before I finished my work today I already finished implement with C# but I'm afraid to make a video at that time because many people in the team came and saw the progress at my table.

PS. I don't know how to stop capturing in C# if someone know the solution please contact me. T^T
PS2. I don't know if it going to be illegal to record and share the video or not but it was my program (LOL).

Change or Die

2012-05-30T12:00:00.000+07:00

I just resigned from my work at KMUTT library last month (The end of April) because I need to continue my Master's Degree by join the internship for at least 4 months. I worked almost one and a half year here. There are many things that made me improve my skill for both human relation and technical skill.
My previous works are related to Education Development. As KMUTT is university of technology, so we try to use and develop our own learning community system.
My last project here was called "KMUTT Cluster for Education Development (C4ED)". KMUTT Education Development Structure response to the commitment to quality, we focus on the educational system, framework, process and people to bring about innovative learning solution that remain relevant and responsive in changing times. To sum up, we try to improve our teaching and learning method by provide training, support or related development activities for student and teacher, designed the course, the curriculum for student (KMUTT QF) and try to encouraged everyone to be our part.
As a programmer here, our team did the research about the curriculum for Engineering study, how IT media can improve the learning, develop our own Learning Management System and any thing related to technology including build up the public relation website or Facebook Fan page. I made some video for introduce the LMS, you can see from my previous blog (with tag: Learning Environment). The last event was called "Change or Die". We organize this event for introduce the alternative way to use technology for learning, show the teacher about student views, discuss about how we can improve our learning. I didn't join the seminar, I was just a staff. In this event, we showed how we can use technology for learning by using gadget so I reposed to install learning application for Android.
As I told you that I have made some video for this project, so when I saw myself here, I was so embarrassed.

The photo is from this video: http://www.youtube.com/watch?v=UkLMjQjNgig

Board presentation
C4ED website: http://www.c4ed.kmutt.ac.th/

Facebook Timeline

2012-05-30T00:49:00.000+07:00

Just finish edited my Facebook profile page. How was it!

I heard many people complain about new version of Facebook. Honestly, I didn't like it at first (I changed to timeline since it was available for developer), but before i used it for a month I found it was really awesome! I think many people just didn't used to it. It takes time. :P

Sudoku cheat

2012-05-13T00:35:00.001+07:00

Hi, long time no blog! I just realize that I already had an awesome model to cheat the sudoku game. Last month, I bought the puzzle book to prove that my model wasn't wrong (actually, i'm think about won the price by cheating, lol). My project was about sudoku solving model from optimization method subject, I have to model and doing research about sudoku, what is the model, what's the different between using IP and CP, how was bigger problems, how was another rule of sudoku... etc. Actually my grade was not good, I got B+ with 79 points (- -") but i would say that the project introduce me how to model with IBM iLOG, knowing about sudoku in deep and it was fun to work with the game i like. ;) But my document still needs to improve.

Sudoku is a number placement puzzle based on logic rather than mathematics. Sudoku gained worldwide popularity in early 2005 and began selling in the form of puzzle books, handheld electronic versions and board games, as well as appearing in thousands of daily newspapers.

The concept of Sudoku is simple. The puzzle consists of a 9x9 square grid that is divided into nine 3x3 squares, resulting in nine rows and nine columns, for a total of 81 small squares. The unsolved Sudoku puzzle supplies only a few numbers in random squares.

To solve the puzzle, the remaining squares must be filled in with the numbers 1 through 9, each appearing only once in each row, column and 3x3 square.

There are more informations, model for both IP and CP and some another rules of sudoku, you can find out from my document

My project document: https://docs.google.com/open?id=0B-Ls4RhAgiHeQjBtdFFram1wRUk

My project presentation: https://docs.google.com/open?id=0B-Ls4RhAgiHeRFFvQWswZXRlYlU

Actually, I already record my video when i was using my model to solve the puzzle from the book but I'm too lazy to edit the video. But it works for all puzzle from the book! (of course!) I'll show you later if I have time to edit it.

TGGS-Vehicle model

2012-03-12T22:43:00.000+07:00

Today I just finished presentation for my software lab project. My project was about making demo and manual document for the TGGS-Vehicle that we got from Aachen university.

The vehicle is the way we learn about micro controller, we use vehicle in order to implement with another component like motor, servo, sensors and so on that you can implement with the car. ;) The micro controller we use was AT90CAN128 from Atmel and program with AVR studio using C language and AVR library.

I provided all information needed such as AVR tutorial, Embedded concepts, equipment data sheet, demo and source code. I hope you find something interested from my google site;

https://sites.google.com/site/ssetggs2012/

I also made the demo for this project;

Demo1: Simple collision avoidance

Actually, I plan to download all page to TGGS' server but we need to wait for the database configuration stuff for put all document there.

Patama ;)

Optimal algorithm: Linear Programming

2012-01-28T23:35:00.000+07:00

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

2012-01-28T22:51:00.001+07:00

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

2011-12-13T01:44:00.002+07:00

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

2011-11-15T08:12:00.001+07:00

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

2011-10-04T12:56:00.000+07:00

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)

2011-09-21T13:11:00.000+07:00

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

2011-09-21T12:54:00.000+07:00

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

Advance Note Application

2011-09-21T12:16:00.000+07:00

One of the project that i have to finish is Android application. Honestly, I didn't do much on coding. This subject was quite interested (i would say that). My team mate is from Vietnam, really great student. :)

Nowadays, it’s unarguable that Smartphone have great potential to be a media tool of choice allowing more interactive and useful in many way. Providing their mobile attribute, useful function and flexibility input (fingertip or voice) is very meaningful. The possibility of applying mobile application is unlimited. As a result of the usefulness of Smartphone, disability people such as blind people also needed to perform normal things on their lives. Realizing in such potential, we are planning to put our effort on the Android Smartphone which is very extensive and easy to implement and provide access to information for people who cannot perform normal thing on Smartphone by using voice input. One of useful application which is very well knows and use widely is every device of all time is Note taking. Computers, particularly tablet PCs and personal digital assistants (PDAs) are beginning to see wide use as note talking devices. It is the way of recording information captured from transient source and it is important for remember and implant the material in the mind.

Functionality

Add Note
1. Add title
2. Add content
3. Select language
4. Select type of alarm
5. Select time for alarm
6. Select date for alarm
Two type of alarm:
1. Text to speech: English and German
2. Notification by sound
Show list of note order by date
Edit note
Delete note
1. Delete selected note
2. Delete all note
Application setting
1. Alarm setting
  1. Repeat time
  2. Time to alarm
  3. Frequency
2. Background color setting

Example of Advance Note Application's interface

Project document: https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B-Ls4RhAgiHeMzkyYzE4OTYtMTNiYS00NjdlLTgwOTItYzc5MDQzYjVjMjU3&hl=en
Project Presentation: https://docs.google.com/leaf?id=0B-Ls4RhAgiHeYTZlZDE3YzgtM2U3MS00MmI0LThkNzEtNWEyMjkwNTUxNTM3&hl=en_US

Test case
We also have to present about test case of our project for Software Engineering, we have test every test case (That we can imaging :D)

Here is the list that we test: https://docs.google.com/leaf?id=0B-Ls4RhAgiHeZTMxZjBhZWMtZDBhNy00ZTI4LWE2Y2MtODMxYThkNWEyYTcz&hl=en_US
Test case presentation: https://docs.google.com/leaf?id=0B-Ls4RhAgiHeN2QyN2U2MzYtM2YyYS00NTdmLWE3ZmUtMzdhMzE0YzQwYzUx&hl=en_US

PS. Actually, at first my project is going to be like show the attractive place for the traveller. It's name 'Aun know the plan'. (Really cool name, I like it) It's show the attractive place with google map and try to route the way from place to place to the user. Then they can check in and share with their friends via Facebook, Twitter or Google+. But my team mate told me that, to work on google map is more difficult, so we select the Note taking and speech stuff. You know what? Then in few weeks I saw this news: http://www.phonearena.com/news/Google-employee-proposal-involves-Maps-plus-custom-Android-app-and-scores-a-yes_id21878

Feeeeeewwwwwww :)
Patama

nearly

2011-09-21T10:07:00.000+07:00

Dear all,
It's almost 3 month that i started master's degree in field of Software System Engineering. The studying is not going quite well for me. I have too much work from both workplace and university. Actually, work from workplace was not that much but Master's degree need more concentrate and hard work than i expected. I would say I didn't do well in this semester, I don't understand the lecture, i would blame it on me, the subject was not so interested for me. I don't like the subjects like distribute system or network stuff which I couldn't imagine what the result should be. It's like something in the cloud that i couldn't touch.

Good luck for all,
Patama

Heap sort

2011-06-30T02:26:00.000+07:00

Hi, This morning I have to present about one of sorting algorithm. The algorithm that i selected was Heap sort. Why? Cuz this is the only one I can remember since I studied when i was freshmen. All I can remember is, there are binary tree that we can use for sorting algorithm. Then, it's Heap sort.

Here is my simple video to show you how heap sort working, I use Max-Heap method to show you how it's work. Hope you like it.

Here is my presentation file: https://docs.google.com/leaf?id=0B-Ls4RhAgiHeNDVkMzI4NDYtMDM1Zi00M2MwLThjN2MtMGJlZGZhYzg3YTQ2&hl=en_US&authkey=CJywhZgO

Master Degree

2011-06-30T02:23:00.000+07:00

Dear all,

Long time no blog ;)

I would like to announce to you, my follower, now I got a full scholarship at Thai-German Graduated school. Now I'm doing Master degree in field of Software System Engineering. (How could i.....)

Now we already started lecture for 3 weeks. Let's see how could I manage work and study together. T^T

Patama

Teacher view

2011-05-27T11:25:00.001+07:00

As my work was on Learning Environment. So we have to co-op. with teachers in university to make sure what they want or other suggestion. This week, I had chance to talk with some teachers in university some was my teacher when i was in uni. yeah! teacher view, that's why I really feel very sorry to every teacher that i behaved not so good in the past. In fact, since i was student in uni it skipped only one time when i was in first year.
When you look at teacher view, it's very different from student view. Teacher try so hard for perform in the classroom, student try so hard to have extra class (before exam). (LOL) But some problem that teacher mention in the meeting, I can explain why we can't do as teacher wish (yeah just thought, I will never make any excuse for that case cuz I never did that.)
Example? Yeah, my teacher mention about the whole student that agree to skip the class to work on other homework. I would say, that's extra class, we have right to did other work, we need time to work before the class in REAL schedule. (I didn't say that, it's just the though for excuse)
That was fun, can't wait for the next meeting (hehe).

Team Member

2011-03-18T12:36:00.000+07:00

Team Member, can you find me? :)

Team trip

2011-03-16T10:21:00.000+07:00

Last Saturday, my team had a little trip to Amphawa-Samutsongkram as know as Amphawa Evening Floating Market. We start the trip at 9.30 am, so late from the schedule.
The first place we had visited was "Wat Phetsamut voraviharn" (วัดเพชรสมุทรวรวิหาร) as know as Wat hluang por ban hlam(วัดหลวงพ่อบ้านแหลม).

Lots of people coming here for pray respect and pray for a wish cuz here was famous for making the wish come true. (Then I ask for xxxxx-cencer hehe)

After that we stop at Rama II Memorial Park, that was really nice place and we take lots of really nice picture. Here it shows lots of stuff in ancient ages such as house, food, instrument etc.

Thai ancient house

At the Garden

Then we were heading to Wat Bang kung, where well known as temple in the tree no no but the temple(the buddhist sanctuary-ubosot) is covered by the tree-Bunyan tree, and here was the military camp in Thonburi era it has a lot of statue of Thai boxing and fighting cock (since King of Thonburi love fighting cock, so if the people pray for wish and it achieved, they will pray respect to the king by fighting cock statue).
And yes, the travel spot of the trip, Floating Market. It was not the same any more. I would say they developed a lot and that was really good. I'll come back again to see fire fly at the end of rain season. :)

You can see our trip's video here but it's just a first part, the second part will be coming soon: