KD_Tree

http://en.wikipedia.org/wiki/Kd_tree

k_NN

http://saravananthirumuruganathan.wordpress.com/2010/05/17/a-detailed-introduction-to-k-nearest-neighbor-knn-algorithm/

http://simsearch.yury.name/tutorial.html

http://people.revoledu.com/kardi/tutorial/DecisionTree/how-decision-tree-algorithm-work.htm

Preprocessing notes

tUse CProgram/CreateAudioInp to split data into a uniform size of small segments and connect each segments with other pattern's segment.

The if MPI can't handle the pattern (as it's too large), split the file into several small files. where first few lines into first file while another few line intond the second file and so on

searching function

http://www.infosysblogs.com/microsoft/2006/10/binary_and_linear_search_how_d.html

using Oversim

http://dilumb.blogspot.com/

To import the image file into vector and save it into a file.

To import the image file into vector and save it into a file.

matlab

function [] = process_img(J,iname)
%%
%filename0 = ['C:\Documents and Settings\amiza\Desktop\airplanepart\noiseImage\st\' iname '.st'];
filename0 = ['C:\Documents and Settings\amiza\Desktop\testflat.dat'];
file_1 = fopen(filename0,'w')
[m,n] = size(J);
%fh = fopen(...);

for i = 1:m
for j = 1:n
fprintf(file_1,'%d',J(i,j));
end

fprintf(file_1,'\n');
end

fclose(file_1);
%close(fh);\



at command window:

J= imread('C:\Documents and Settings\amiza\My Documents\My Dropbox\myphotos\flattopo.bmp')
process_img(J)

audio view using matlab

funky = wavread('funky.wav');
[funky, f] = wavread('funky.wav');
wavplay(funky, f);

subplot(2,1,1), plot(funky), title('Entire waveform');

plot small range only
-----------------------
smallRange = 100000:100000+floor(f/100);
subplot(2,1,2), plot(smallRange, funky(smallRange)), title('100 milliseconds');


Spectrogram:
specgram(funky, 512, f);

View waveform:
subplot(2,1,1), plot(funky), axis('tight');
subplot(2,1,2),

Error c++: *** glibc detected *** double free or corruption (fasttop): 0x08097c40 *** Aborted

That is Linux C++ error.

solve it with this:

just type:

export MALLOC_CHECK_=0

Testing dataset path

/media/TOSHIBA/SongCorpus/allSong.arff

  /media/TOSHIBA/SongCorpus/blues/Polluted1024/WN/polluted1024WN.arff



/media/TOSHIBA/SongCorpus/blues/1024SongDistortion/1024SongDistortion.arff

/media/TOSHIBA/SongCorpus/blues/blues8000/GWN/1024/bluesGWN.arff

InstanceViewer

in InstanceViewer/bin:

java Viewer -sv 0 3 /media/TOSHIBA/SongCorpus/blues/blues8000/1024Song.arff /media/TOSHIBA/SongCorpus/blues/blues8000/1026Song.arff


java Viewer -av 0 3 4 /media/TOSHIBA/SongCorpus/blues/blues8000/1024Song.arff /media/TOSHIBA/SongCorpus/blues/blues8000/1026Song.arff


ps make sure weka.jar and weka-src.jar are located at usr/lib/jvm/java6/jre/lib/ext

Compiling java program with imported library

For linux users:
put all the libraries (.jar) into your jre/lib/ext then compile as usual.

note that if you use synaptic to install your jdk, the location of your jdk is at /usr/lib/jvm/jdk6..

Unable to access webpage when connected with Huawei E220 wireless modemn

The latest ubuntu distro was automatically detected my Huawei E220 wireless modemn and I managed to connect to the internet. However, it was so strange as I was able to get online on Skype but cant access webpage. Fortunately, someone was online and helped me to fix this. Initially I thought it was because of the proxy server setting on Firefox but it turned out that was not the reason. Ping google.com but failed then the problem was because of the DNS server setting. So what we did:

1. edit /etc/resolv.conf file
the file was read only therefore I needed to change the file mode to write first
chmod a+rw /etc/resolv.conf

change the name server
8.8.8.8
8.8.4.4

*this is google server

2. Done

Million thanks to Mr. Coffee!!!

Simple makefile programming with while loops

SOURCEPATH = ~/extracted
SONGNAME = Song
SONGID = 98
NUMFILE = 220;

move:
COUNTER=1
while [[ $$COUNTER -le 9 ]]; do \
echo The counter is $$COUNTER ; \
cp ~/extracted/$(SONGID)$(SONGNAME)-0$$COUNTER.wav ~/SplittedFiles/$$COUNTER ; \
((COUNTER = COUNTER + 1)) ;\
done

COUNTER=10
while [[ $$COUNTER -le 220 ]]; do \
echo The counter is $$COUNTER ; \
cp ~/extracted/$(SONGID)$(SONGNAME)-$$COUNTER.wav ~/SplittedFiles/$$COUNTER ; \
((COUNTER = COUNTER + 1)) ;\
done
back:
COUNTER=1
while [[ $$COUNTER -le 9 ]]; do \
echo The counter is $$COUNTER ; \
cp ~/SplittedFiles/$$COUNTER/$(SONGID)$(SONGNAME)-0$$COUNTER.wav ~/extracted ; \
((COUNTER = COUNTER + 1)) ;\
done

COUNTER=10
while [[ $$COUNTER -le 220 ]]; do \
echo The counter is $$COUNTER ; \
cp ~/SplittedFiles/$$COUNTER/$(SONGID)$(SONGNAME)-$$COUNTER.wav ~/extracted ; \
((COUNTER = COUNTER + 1)) ;\
done
check:
COUNTER=1
while [[ $$COUNTER -le 220 ]]; do \
ls ~/SplittedFiles/$$COUNTER ; \
((COUNTER = COUNTER + 1)) ;\
done

clean:
COUNTER=1
while [[ $$COUNTER -le 9 ]]; do \
$(RM) $(SOURCEPATH)/$(SONGID)$(SONGNAME)-0$$COUNTER.wav ; \
((COUNTER = COUNTER + 1)) ;\
done

COUNTER=10
while [[ $$COUNTER -le 220 ]]; do \
$(RM) $(SOURCEPATH)/$(SONGID)$(SONGNAME)-$$COUNTER.wav ; \
((COUNTER = COUNTER + 1)) ;\
done

make move- move a batch of files into another folder

Software for audio processing

1. Most common - Audacity
2. WaveBreaker - break a big wav fie into smaller parts - Linux
3. Wavosaur-windows

errors found in Debian based OS

1. Software installation:

configure: error: Package requirements (gtk+-2.0 libxml-2.0) were not met.
Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

solution:

install libgtk2.0-dev
install libxml-dev.

Using marsyas

1. Create a collection

ls /home/gtzan/data/sound/reggae/*.wav > reggae.mf

automatically:
mkcollection -c reggae.mf -l music /home/gtzan/data/sound/

2. Feature extraction
  bextract music.mf speech.mf -w ms.arff -p ms.mpl -cl
  bextract ms.mf -w ms.arff -p ms.mpl
  bextract -mfcc classical.mf jazz.mf rock.mf -w genre.arff

./bextract -sv cl.mf ja.mf ro.mf -w genres.arff -p genres.mpl

Software for math in Linux

1. wmxMaxima
2. GP
4. Scilab