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view/download model file: APS_recognition-numbersEnd.nlogo
This model is able to recognize numbers (in range: 0 - 9).
Modified version of the algorithm of positive selection is used for it (learning phase of the immature T-lymphocytes are not contained in this implementation).
Firstly you have to set up affinity threshold value (slider SelectedAffinity) - sensitivity of the recognition. Higher value of the threshold means that more properties have to be same in recognition between our number and implemented numbers (self-antigens) in NetLogo. Slider color-pen is for setting color of the pen that will be used for creating new object. Then we can use SETUP button. This button inicializes the model. Numbers (self-antigens) are created on the background of the model, but they are not visible, because new object is painted by the user on this bacground later.
After that, you have to create new number, that will be recognized by self-antigens that are invisible in the model. Use the button CREATE-NEW-OBJECT and paint squares on the selected red crosses on the NetLogo background.
If you want to know, with which number is your number similar, click on the RECOGNIZE-NEW-OBJECT button and you will see information about recognition on the right side of the model - in the text area (output-window).
This model is not perfect :-), because the grid is rough.
Data structure List was used for implementing properties of the numbers.
I think that matrix is more suitable for it.
Martina Husáková
email: martina.husakova.2@uhk.cz