Paypal, Inc.

Amit Benbassat

Shlomi Boutnaru

Yuri Shafet

Eyal Ben Simon

Artum Zolotushko

Techniques for identifying weaknesses in a probabilistic model such as an artificial neural network using an iterative process are disclosed. A seed file may be obtained and variant files generated therefrom. The variant files may be evaluated for their fitness, based upon the ability of the variant files to cause the probabilistic model to fail. The fittest variants, which may refer to those variants that are most successful in causing the model to fail, may be selected. From these selected variants, a next generation of variant files may be created. The next generation of variant files may be evaluated for their fitness. At each step of fitness evaluation or at the end of the iterative process, a map of the fittest variants may be generated to identify hotspots. These hotspots may reveal segments of code or a file that are problematic for the model, which can be used to improve the model.

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Tel Aviv, Israel

Amit Benbassat