[Audio] Applications of Privacy Preserving Data Mining …
Medical Databases: The Scrub and Datafly Systems Scrub :

The scrub system was designed for de identification of clinical notes and letters which typically occurs in the form of textual data.

Clinical notes and letters are typically in the form of text which contain references to patients, family members, addresses, phone numbers or providers.

Traditional techniques simply use a global search and replace procedure in order to provide privacy.

However clinical notes often contain cryptic references in the form of abbreviations which may only be understood either by other providers or members of the same institution.

Therefore traditional methods can identify no more than 30-60% of the identifying information in the data 
The Scrub System uses local knowledge sources which compete with one another based on the certainty of their findings.

Such a system is able to remove more than 99% of the identifying information from the data.
54. 

Scene 1

Medical Databases: The Scrub and Datafly Systems
Scrub :

The scrub system was designed for de-identification of clinical notes and letters which
typically occurs in the form of textual data.

Clinical notes and letters are typically in the form of text which contain references to
patients, family members, addresses, phone numbers or providers.

Traditional techniques simply use a global search and replace procedure in order to
provide privacy.

However clinical notes often contain cryptic references in the form of abbreviations
which may only be understood either by other providers or members of the same
institution.

Therefore traditional methods can identify no more than 30-60% of the identifying
information in the data

The Scrub System uses local knowledge sources which compete with one another based
on the certainty of their findings.

Such a system is able to remove more than 99% of the identifying information from the
data.
54
Applications of Privacy-Preserving Data Mining …

15CS338E - Database Security and Privacy part 2

Applications of Privacy Preserving Data Mining …
Medical Databases: The Scrub and Datafly Systems Scrub :

The scrub system was designed for de identification of clinical notes and letters which typically occurs in the form of textual data.

Clinical notes and letters are typically in the form of text which contain references to patients, family members, addresses, phone numbers or providers.

Traditional techniques simply use a global search and replace procedure in order to provide privacy.

However clinical notes often contain cryptic references in the form of abbreviations which may only be understood either by other providers or members of the same institution.

Therefore traditional methods can identify no more than 30-60% of the identifying information in the data 
The Scrub System uses local knowledge sources which compete with one another based on the certainty of their findings.

Such a system is able to remove more than 99% of the identifying information from the data.
54