Friday, January 22, 2010

(Adaptive)Huffman with DPCM Coder/Encoder



This is my Homework in Class of Data Compression.
A Coder/Encoder designed with functions (Adaptive)Huffman and DPCM.

I generate the wxWidgets with OpenCV 2.0a, and It seems work fine.

Thursday, January 21, 2010

A wx(Flat)NoteBook with wxSplitterWindow




I develope a platform for showing the immediate information.

wxWidget is a well-designed toolkit of designing windows programs.
But some components are not completed.

Some useful of one is the wxSplitterWindow associated with wx(Flat)NoteBook.
I integrate them and showing the demo here!

Thursday, November 27, 2008

Friday, November 07, 2008

Multilayer Perceptron


Neural network homework 2 assigned during 10/22~11/05:
Coding during 11/03~11/06
Delayed again...XD



Functional list:
1.insert/modify/delete the hidden layers of MLP
2.show weight values of each connected edges between nodes dynamically
3.sample data normalization
4.the structure of MLP view(move,magnify and shrink)











Tuesday, October 28, 2008

Hyper-sphere Decision Boundaries


The homework is done for finding a decision boundary with the simplest way between two-class samples.

That is, to find the domain with a center(u) and a radius(r) approaching the decision boundary.











My way to approach the boundary is:
1. Find the centers and the max domains of two training samples individually.
2. Choose the smallest class domain and define the decision boundary.
3. Then the work is done.






























[coding during 10/22~10/24]

Sunday, October 19, 2008

The Perceptron



This is my neural network homework 1 assigned during 10/1~10/15.
The software is developed with WxWidgets and OpenGL.
For surfing, I estimate the lefting days that I cought finish the homework.(from 10/13)
However, I can't! So the job is delayed.







Perceptron: the simplest classifier in computer science.
There are many different kinds of data.
Maybe in the 2-dimenstions space, 3-dimenstions space and so on.
So the job is done for classifying the data.

I find WxWidgets have a full supported with OpenGL.
My prexy told me another 3D library - VTK.
It's time for researching, maybe...
























[screenshot upd: 2008.10.27]