Anonymity measuring device
AssigneeAccenture Global Services Limited
InventorMichele Bezzi
Life of this patent
Estimating the term…
Abstract
The invention concerns a data anonymity measuring device for selectively transmitting an anonymised database to a third party comprising: calculation means (402) coupled to at least one memory, the memory storing an original database (204) and said anonymized database (206), said calculation means arranged to calculate the conditional entropy for each entry in said anonymized database based on entries in said original database; comparing means (406) arranged to compare at least one of said conditional entropies with a threshold value; and output means (410) arranged to transmit said anonymized database based on the result of said comparison.
Claims12
A data anonymity measuring device for selectively transmitting an anonymised database to a third party comprising:
- a calculation unit (402) coupled to at least one memory (204, 206), the memory storing an original database and said anonymized database, said calculation unit arranged to calculate the conditional entropy for each entry in said anonymized database based on entries in said original database;
- a comparator (406) arranged to compare at least one of said conditional entropies with a threshold value;
- and
- an output unit (410) arranged to transmit said anonymized database based on the result of said comparison.
A selective transmission device for selectively transmitting an anonymized database to a third party comprising the anonymity measuring device of any preceding claim.
A method for selectively transmitting an anonymized database to a third party, the method comprising:
- for each entry in said anonymized database, determining the conditional entropy based on entries in an original database;
- comparing at least one of said conditional entropies with a threshold entropy value;
- and
- selectively transmitting said database to said third party based on the result of said comparison.
Dependencies are inferred from the claim text.