Notes on codes, projects and everything
I am Lai Choon Siang. The place where I am living currently is in Subang Jaya, Malaysia. Most of the time, people I met online know me by my Internet Alias “Jeffrey04”. In my free time, I like reading books, traveling, taking photographs and blogging. I am currently maintaining two blogs; first consists mostly life journals in Mandarin language and the second, which is the blog that you are reading at, would be used to keep my findings and notes in web-development field. Besides that, I am also help in operating a Chinese blogger community website which helps to promote blogging in Mandarin Language among Malaysian.
I started learning about computer when I was in the age of 10. The first program I learned was Delta Drawing and recent studies claimed that it is actually a type of simplified LOGO language. I also learned a bit of LOGO before Windows 95 became popular and I quited the class which taught LOGO. Then I spent some time in learning the HyperText Markup Language (HTML) around the age of 12 and started to write some simple websites and applied CSS in later years. After getting used with installing scripts, then I built some bulletin boards using YaBB, YaBB SE, SMF, phpBB and Discuz without knowing much about programming.
In my secondary school life, I joined Malaysia Red Crescent Society and held the position as an Afternoon Session Representative, then Assistant Secretary, followed by Secretary and finally as a President. Besides that, I also joined Chinese Language Society and held position as a form representative. In these societies, I joined some camping activities, marching competitions and attended some courses such as basics in first aid. I also participated in educational slide making competition for physics when I was in form 5.
Then I entered Tunku Abdul Rahman College to take my Diploma in Computer Science and Management Mathematics. Throughout the two years of studies, I learned various programming languages such as C, basic JAVA, HTML and CSS, Classic VB and SQL as well as other subjects like Accounting, SDLC and Mathematics such as Statistics, Algebra, Calculus, Introductory Discrete Maths etc. Besides that, I also spent some time in learning PHP after learning the key-concepts of programming in college and built a simple blog. However, I migrated the blog to WordPress because of the lack of time and limited knowledge in spam prevention.
After obtaining my Diploma, I continued my studies in Advanced Diploma cum Bachelor’s Degree (in conjunction with Campbell University, North Carolina, USA) of Computer Science and Management Mathematics on a partial scholarship offered by the college. Throughout the two years of study, the new programming languages and technologies learned are procedural C# with ASP.NET, Object Oriented VB.NET, Oracle PL/SQL and Microsoft T-SQL, SWI-Prolog as well as some theory subjects such as basics in Database Design and Maintenance, basic Operating System principals, Windows 2003 Administration and Maintenance, Artificial Intelligence, OOAD as well as Mathematics subjects such as Quality Control, Applied Statistics, Theory of Interest, Mathematics of Life Insurance and Financial Market, Discrete Mathematics, Operational Research, Cryptography etc. I also took some liberal arts unit in Introduction to Psychology, Music Appreciation and Introduction to Short Story.
The topic for my final year seminar was on Solving Linear and Non-linear Equations using Numerical Analysis and built a web 2.0-ish tourism information website titled “Trekkr” with co-operation of Regina Foo. The final year project was built using PHP5 and MySQL5 with full Object Oriented MVC architectural. We didn’t use any framework at that moment as we wanted to keep the project simple (and the MVC architectural design is posted here). The final year project website was being uploaded to a real life web-server offered by my friend Clemence for testing in production environment and was taken down after the development completes. The web server used was Apache and was operating on Linux Operating System.
I am currently graduated from college and is looking for a job in web-development field. Unless I am developing projects other than PHP5, I would be on LAMP for my web-development projects. I used Eclipse PDT to develop my final year project but I am shifting to OpenKomodo for my future PHP5 projects. The operating system that I am using most of the time is Ubuntu Linux as it doesn’t cost me much money to work on it.
So apparently Annoy is now splitting points by using the centroids of 2 means clustering. It is claimed that it provides better results for ANN search, however, how does this impact regression? Purely out of curiosity, I plugged a new point splitting function and generated a new set of points.(more…)
I haven’t got much time lately, so didn’t write about this new phone that I recently imported. For some reason, this new phone of mine do not act as mass storage device like its predecessors (to certain extend). Thankfully I can still ssh in the phone and this makes it possible to mount it as a sshfs volume.
array_map function is a function that I use the most in my php scripts recently. However, there are times where I want to pass some non-array into it, therefore often times I have code like the snippet shown below:
$result = array_map(
array_fill(0, count($some_array), 'some_string'),
array_fill(0, count($some_array), 'some_other_string'),
It doesn’t look good IMO, as it makes the code looks complicated. Hence, after seeing how the code may vary in all different scenarios, I created some functions to clean up the array_map call as seen above. Code snippet after the jump
This post continued from this post. Finally I have found some time to start developing my pet project using Zend Framework. After getting the controller to work the way I am more familiar (comparing to Kohana which I used at work) with, the next step is to get it to output some data.