Policy Based Safe Interactive access framework for Web search logs
by Palanivel Andiappan Kodeswaran
Tuesday, September 23, 2008, 10:30am - Tuesday, September 23, 2008, 12:00pm
ITE 346
Web search logs are of growing importance to researchers for a variety of
reasons such as understanding search behaviour, search engine performance
etc. However, search logs may contain a lot of private information about the
users and therefore must be released with care. In this talk, we will review
existing approaches to releasing log information and the ensuing trade-off
between privacy and utility. We will then describe our proposed policy based
safe interactive access framework for releasing search logs with the
additional goal of balancing privacy and utility. In our system,
differential privacy is used as the underlying privacy enforcement
mechanism. Preliminary results indicate that our approach can provide
utility to researchers while still protecting the privacy of the users. We
will also present results from our user study to understand the privacy
implications of our framework.