Online fraud prevention using genetic algorithm solution

A system, comprising:

• one or more processors;
• and
• a non-transitory computer-readable medium having stored thereon instructions that are executable by the one or more processors to cause the system to perform operations comprising:
• generating a first plurality of transaction risk evaluation rules based on feature data corresponding to a first set of electronic transactions initiated by a plurality of different users, and wherein each of the first plurality of transaction risk evaluation rules has a corresponding feature evaluation set that utilizes one or more respective features from the feature data;
• determining initial evaluation results based on applying the first plurality of transaction risk evaluation rules to an evaluation set of electronic transactions;
• and
• based on the initial evaluation results, automatically generating a second plurality of transaction risk evaluation rules, including:
• selecting first and second transaction risk evaluation rules of the first plurality of transaction risk evaluation rules;
• creating a genetically modified new transaction risk evaluation rule based on at least a first evaluation feature from a feature evaluation set for the first transaction risk evaluation rule and at least a second evaluation feature from a feature evaluation set for the second transaction risk evaluation rule;
• and
• including the genetically modified new transaction risk evaluation rule in the second plurality of transaction risk evaluation rules.

A method, comprising:

• accessing a first plurality of transaction risk evaluation rules generated based on feature data corresponding to a first set of electronic transactions initiated by a plurality of different users, and wherein each of the first plurality of transaction risk evaluation rules has a corresponding feature evaluation set that utilizes one or more respective features from the feature data;
• determining initial evaluation results based on applying the first plurality of transaction risk evaluation rules to an evaluation set of electronic transactions;
• and
• based on the initial evaluation results, a computer system automatically generating a second plurality of transaction risk evaluation rules, including:
• selecting first and second transaction risk evaluation rules of the first plurality of transaction risk evaluation rules;
• creating a genetically modified new transaction risk evaluation rule based on at least a first evaluation feature from a feature evaluation set for the first transaction risk evaluation rule and at least a second evaluation feature from a feature evaluation set for the second transaction risk evaluation rule;
• and
• including the genetically modified new transaction risk evaluation rule in the second plurality of transaction risk evaluation rules.

A non-transitory computer readable medium having instructions stored thereon that are executable by a computer system to cause the computer system to perform operations comprising:

• accessing a first plurality of transaction risk evaluation rules generated based on feature data corresponding to a first set of electronic transactions initiated by a plurality of different users, and wherein each of the first plurality of transaction risk evaluation rules has a corresponding feature evaluation set that utilizes one or more respective features from the feature data;
• determining initial evaluation results based on applying the first plurality of transaction risk evaluation rules to an evaluation set of electronic transactions;
• and
• based on the initial evaluation results, automatically generating a second plurality of transaction risk evaluation rules, including:
• selecting first and second transaction risk evaluation rules of the first plurality of transaction risk evaluation rules;
• creating a genetically modified new transaction risk evaluation rule based on at least a first evaluation feature from a feature evaluation set for the first transaction risk evaluation rule and at least a second evaluation feature from a feature evaluation set for the second transaction risk evaluation rule;
• and
• including the genetically modified new transaction risk evaluation rule in the second plurality of transaction risk evaluation rules.