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Fixed a logical error in the neural correlation
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cddaa2b3a7
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50f287fbb5
1 changed files with 5 additions and 3 deletions
8
neural.c
8
neural.c
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@ -272,8 +272,10 @@ __AI_som_alert_distance ( const AI_som_alert_tuple alert1, const AI_som_alert_tu
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/* Return the normalized euclidean distance in [0,1] (the normalization is made considering that the maximum distance
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* between two points on the output neurons matrix is the distance between the upper-left and bottom-right points) */
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return sqrt ((double) ( (x2-x1)*(x2-x1) + (y2-y1)*(y2-y1) )) /
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sqrt ((double) ( 2 * (config->outputNeuronsPerSide-1) * (config->outputNeuronsPerSide-1) ));
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/* return sqrt ((double) ( (x2-x1)*(x2-x1) + (y2-y1)*(y2-y1) )) / */
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/* sqrt ((double) ( 2 * (config->outputNeuronsPerSide-1) * (config->outputNeuronsPerSide-1) )); */
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return sqrt ((double) ( (x2-x1)*(x2-x1) + (y2-y1)*(y2-y1) ));
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} /* ----- end of function __AI_som_alert_distance ----- */
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/**
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@ -308,7 +310,7 @@ AI_alert_neural_som_correlation ( const AI_snort_alert *a, const AI_snort_alert
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t2.timestamp = b->timestamp;
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t2.desc = b->desc;
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return __AI_som_alert_distance ( t1, t2 );
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return 1.0 / ( 1.0 + __AI_som_alert_distance ( t1, t2 ));
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} /* ----- end of function AI_alert_neural_som_correlation ----- */
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/**
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