BEAT - aythamimm/enroll

This algorithm is a legacy one. The API has changed since its implementation. New versions and forks will need to be updated.

This algorithm is splittable

Endpoint Groups 1

Algorithms have at least one input and one output. All algorithm endpoints are organized in groups. Groups are used by the platform to indicate which inputs and outputs are synchronized together. The first group is automatically synchronized with the channel defined by the block in which the algorithm is deployed.

Group: main

Endpoint Name	Data Format	Nature
keystroke	tutorial/atvs_keystroke/1	Input
template_id	system/text/1	Input
keystroke_model	aythamimm/keystroke_model/6	Output

import numpy

class Algorithm:

def __init__(self):
        self._features1 = [] 
        self._features2 = [] 
        self._features3 = [] 
        self._features4 = [] 
        self._features5 = []

def process(self, inputs, outputs):

# collect all the features for the current template
        data = inputs['keystroke'].data
        
        f1 = data.holdtime.given_name
        f2 = data.rplatency.given_name
        feature_vector=[]
        l_f=len(f1)
        for i_k in range(l_f):
            feature_vector.append(float(f1[i_k]))
        
        l_f=len(f2)
        for i_k in range(l_f):
            feature_vector.append(float(f2[i_k]))              
                
        self._features1.append(feature_vector)
                      
        f1 = data.holdtime.family_name
        f2 = data.rplatency.family_name
        feature_vector=[]
        l_f=len(f1)
        for i_k in range(l_f):
            feature_vector.append(float(f1[i_k]))
        
        l_f=len(f2)
        for i_k in range(l_f):
            feature_vector.append(float(f2[i_k]))              
                
        self._features2.append(feature_vector)
                
        f1 = data.holdtime.email
        f2 = data.rplatency.email
        feature_vector=[]
        l_f=len(f1)
        for i_k in range(l_f):
            feature_vector.append(float(f1[i_k]))
        
        l_f=len(f2)
        for i_k in range(l_f):
            feature_vector.append(float(f2[i_k]))              
                
        self._features3.append(feature_vector)
        
        f1 = data.holdtime.nationality
        f2 = data.rplatency.nationality 
        feature_vector=[]
        l_f=len(f1)
        for i_k in range(l_f):
            feature_vector.append(float(f1[i_k]))
        
        l_f=len(f2)
        for i_k in range(l_f):
            feature_vector.append(float(f2[i_k]))              
                
        self._features4.append(feature_vector)
        
        f1 = data.holdtime.id_number
        f2 = data.rplatency.id_number 
        feature_vector=[]
        l_f=len(f1)
        for i_k in range(l_f):
            feature_vector.append(float(f1[i_k]))
        
        l_f=len(f2)
        for i_k in range(l_f):
            feature_vector.append(float(f2[i_k]))              
                
        self._features5.append(feature_vector) 
                
        # Calculate mean and std
        if inputs["template_id"].isDataUnitDone():
            features11 = numpy.average(self._features1, axis=0)
            features12 = numpy.std(self._features1, axis=0)
            features21 = numpy.average(self._features2, axis=0)
            features22 = numpy.std(self._features2, axis=0)      
            features31 = numpy.average(self._features3, axis=0)
            features32 = numpy.std(self._features3, axis=0)      
            features41 = numpy.average(self._features4, axis=0)
            features42 = numpy.std(self._features4, axis=0)      
            features51 = numpy.average(self._features5, axis=0)
            features52 = numpy.std(self._features5, axis=0)      
            # outputs data
            outputs["keystroke_model"].write({
                'given_name_average': 		features11,
                'given_name_std': 			features12,
                'family_name_average': 		features21,
                'family_name_std': 			features22,
                'email_average': 			features31,
                'email_std': 				features32,
                'nationality_average': 		features41,
                'nationality_std': 			features42,
                'id_number_average': 		features51,
                'id_number_std': 			features52,
            }) 
            
            self._features1 = []
            self._features2 = []
            self._features3 = []
            self._features4 = []
            self._features5 = []

return True

The code for this algorithm in Python
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This algorithm is designed to be used as a simple enrollment strategy. It enrolls a model from several features by computing the average of the enrollment features.

Note

All features must have the same length.

Experiments

Attestation:

Privacy:

Status:

			Updated	Name	Databases/Protocols	Analyzers
				aythamimm/aythamimm/btas15_keystroke_experiments/6/BTAS_2015_Kesytroke_Experiment	atvskeystroke/1@A	aythamimm/analyzer_keystroke/70

This table shows the number of times this algorithm has been successfully run using the given environment. Note this does not provide sufficient information to evaluate if the algorithm will run when submitted to different conditions.

algorithms aythamimm enroll_keystroke 36

Endpoint Groups 1

Group: main

Experiments

algorithms

aythamimm

enroll_keystroke

36