Providing differentially private data with causality preservation

US10423781B2 · kind B2 · utility

Assignee

• SAP SE · DE

Inventors

• Wasilij Beskorovajnov · Karlsruhe, DE
• Daniel Bernau · Karlsruhe, DE

Key dates

• Filing date: Sep 12, 2017
• Grant date: Sep 24, 2019
• Expiry date: Mar 26, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F21/6254
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A method is disclosed for providing sanitized log data to a threat detection system. The sanitized log data is derived from a log table with continuous columns, themselves having continuous entries with continuous values. First, a retention probability parameter and an accuracy radius parameter are selected. Next, a probability distribution function is initialized with the retention probability parameter and the accuracy radius parameter. For each continuous value, the probability distribution function is applied, resulting in perturbed continuous values of a perturbed continuous columns Finally, the perturbed continuous columns are provided as the sanitized log.