{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8543522","patent":{"patent_number":"US-8543522","title":"Automatic rule discovery from large-scale datasets to detect payment card fraud using classifiers","assignee":null,"inventors":[],"filing_date":"2011-04-18T00:00:00.000Z","publication_date":"2013-09-24T00:00:00.000Z","cpc_codes":["G06Q"],"num_claims":18,"abstract":"A set of payment card transactions including a sparse set of fraudulent transactions is normalized, such that continuously valued literals in each of the set of transactions are transformed to discrete literals. The normalized transactions are used to train a classifier, such as a neural network, such that the classifier is trained to classify transactions as fraudulent or genuine. The fraudulent transactions in the set of payment card transactions are clustered to form a set of prototype transactions. Each of the discrete literals in each of the prototype transactions is expanded using sensitivity analysis using the trained classifier as an oracle, and a rule for identifying fraudulent transactions is generated for each prototype transaction based on the transaction's respective expanded literals."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Automatic rule discovery from large-scale datasets to detect payment card fraud using classifiers","description":"A set of payment card transactions including a sparse set of fraudulent transactions is normalized, such that continuously valued literals in each of the set of transactions are transformed to discret","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8543522","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-8543522","citation_suggestion":"Patentable. \"Automatic rule discovery from large-scale datasets to detect payment card fraud using classifiers\" (US-8543522). https://patentable.app/patents/US-8543522","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8543522","json":"https://patentable.app/api/llm-context/US-8543522","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T05:15:03.279Z"}