Dynamische Empfindlichkeit in Sql-Umschreibung

Details

Veröffentlichungs-Nr.

EP4811199

Anmeldetag

16. März 2026

Veröffentlichung

23. September 2026

Rechtsraum

EP

IPC

G06F21/62, G06F16/2458

Abstract

The present disclosure involves methods (200, 300), apparatus, and systems (100, 400) for dynamically determining sensitivity in differential privacy. This can include: identifying a query for aggregate information from a source, wherein the aggregate information is associated with a plurality of users; grouping each piece of information in the source based on an associated user for that piece of information; determining, for each associated user, a primary aggregation, wherein the primary aggregation is a vector representing results to the query sorted by each associated user's contribution to the source; calculating, as a calculated user norm, a user norm for each user's primary aggregation; identifying a subset one or more users whose primary aggregation is greater than the sensitivity associated with the source; and truncating subset one or more users' primary aggregation by a ratio of their associated calculated user norm and the sensitivity.

Anmelder

Firmen

Beijing Zitiao Network Technology Co., Ltd.
Bytedance Technology Ltd.

Land

🇨🇳 China

Fachgebiete