10.6 Analysis
Possible Matches
Let the Total Images in the input file be N, the Possible Matches will be N*N. In our example, N * N = 1032 x 1032 = 1,065,024.
Attrasoft Matches
The number of retrieved matches is listed in the last line of b1.txt. Go to the end of b1.txt; you will see something like this:
Total Number of Matches = 6354.
Actual Match
This number depends on your problem. It should be the first number in b1_matchlist.txt. In our example, it is 2064.
Attrasoft Finds Matches
To check the results, we must prepare the b1_matchlist.txt file now. This file is already prepared for you and we will simply open it and save it to b1_matchlist.txt (overwrite the existing file). The steps are:
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Open “c:\program files\Attrasoft\ImageFinder 7.0\data\b1_matchlist_face.txt”. Save it to b1_matchlist.txt in the same folder (overwrite the existing file). Now this file is prepared.
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Click “NeuralFilter/N:M Analysis/Check (b1_matchlist.txt)” to check the results of the NeuralFilter.
The result is:
Total Matches = 2064
All of the pairs are identified. Now that you have all of the numbers, you can make an analysis.
Positive Identification Rate
In this example, the Positive Identification Rate is 100%, i.e., 2064/2064 = 100%.
Elimination Rate
Elimination Rate = 99.4 % = (1 – 6354/1,065,024).
Hit Ratio
The Hit Ratio = 2064/6354 = 32.5 %.
Composite Index
The composite index is = 100% * 99.4% * 32.5% = 32.3%.
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