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SEGMENTER
‘Segmenter.exe’ is a 32bit executable consol application for WINDOWS 2000 or greather. There is no version
for Linux. The algorithms are explained in 2nd title.
AGREEMENT
Please use the software for only acedemic purposes and
refer the following studies in your papers.
Titles
1. Aksoy H, Unal NE, Gedikli A, Letter to the editor, Stochastic
Environmental Research and Risk Assessment, 21(4): 447-449, 2007.
2. Gedikli A, Aksoy H, Unal NE, Segmentation algorithm for long time series
analysis, Stochastic
Environmental Research and Risk Assessment, 22(3): 291-302,
2008.
ABOUT SOFTWARE
Download the executable
to a new directory on your computer.
Data format At least two space between items and never
put space after the last item (See h131.txt).
There is no other criteria to consider.
Valid file
names are the same with WINDOWS.
Maximum number of items is approximately 3000 for a
computer with total 2GB memory (including paging file). This is not a planned
restriction, just because of ability of c++ when using near memory access.
Example data - 1 :
| 631.00
737.00 874.00 1233.00
521.00 767.00 902.00
670.00
537.00
564.00 270.00 444.00
592.00 691.00 647.00
1144.00
530.00
834.00 431.00 1219.00
754.00 1247.00 841.00
521.00
1075.00
904.00 899.00 839.00
739.00 770.00 838.00
700.00
1164.00
1234.00 644.00 807.00
559.00 430.00 417.00
437.00
666.00
330.00 945.00 745.00
666.00 572.00 467.00
1152.00
842.00
718.00 631.00 1068.00
1049.00 952.00 1029.00
1037.00
788.00
621.00 944.00 969.00
666.00 970.00 1048.00
841.00
1037.00
397.00 764.00 542.00
598.00 263.00 361.00
760.00
602.00
470.00 324.00 523.00
301.00 402.00 423.00
308.00
218.00
216.00 355.00 340.00
216.00 400.00|
Example data - 2 :
| 631.00
737.00
874.00
1233.00
521.00
767.00
902.00 670.00|
For execution, open the
directory including ‘Segmenter.exe’ and
then select it. Press ‘Enter’ button. Follow the instuctions on the black board
then obtain the results given in the text file named ‘OUT.txt’. (In viewing
results, IE or any internet browser is more suitable for long rows than
‘Notepad’ or ‘MS Word’).
‘OUT.txt’
includes
Cost : The
normalized cost values.
Ho : Takes the
value depending on Scheffe’s test,
0, if test is succeeded,
>0, if test is not succedeed
-1, if test is not available (when the
segmentation cost is vanishing).
Alt : Since the solution of segmentation problem is not
unic, there may be at least alt
optimal segmentations of n-th order which are not presented here. This code may
not find all of these solutions. To test this, you can use time series symmetric
according to its first and last items, e.g. (a,b,c,b,a).
Dr. Abdullah Gedikli
Istanbul Technical University
Civil Engineering Faculty
34469, Maslak – Istanbul, Turkey
gedikliab@itu.edu.tr