Privacy for Spatial Queries and Data

Speaker:	Professor Christian S. Jensen
		Center for Data-Intensive Systems (Daisy)
		Department of Computer Science
		Aalborg University

Title:		"Privacy for Spatial Queries and Data"

Date:		Monday, 12 October, 2009

Time:		10:30am - 11:30am

Venue:		Room 3311 (via lifts. 17/18), HKUST

Abstract:

The evolving mobile Internet will be "bigger" than the conventional
Internet. User context is expected to be important on the mobile Internet,
with user location being a prominent aspect of the context. We are also
witnessing a movement towards cloud computing and outsourcing of data
management functionality.

The talk covers a query-location privacy solution that offers location
privacy at low cost and enables trade-offs that involve the amount of
privacy, the query cost, and the query accuracy. If time permits, the talk
will also cover briefly a solution to the problem of outsourcing the
management of private spatial data. The challenge is how to ensure that
the data is private and thus "hidden" from the service provider while also
supporting the efficient querying of the data.


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Biography:

Christian S. Jensen is a Professor of Computer Science at Aalborg
University, Denmark. His research concerns data management and spans
issues of semantics, modeling, and performance. He is an IEEE Fellow and a
member of the Danish Academy of Technical Sciences, the EDBT Endowment,
and the VLDB Endowment's Board of Trustees. He is an editor-in-chief of
The VLDB Journal and has served on the editorial boards of ACM TODS, IEEE
TKDE, and the IEEE Data Engineering Bulletin. He was PC chair or co-chair
for SSTD 2001, EDBT 2002, VLDB 2005, MobiDE 2006, MDM 2007, and TIME 2008.
During the academic year 2008/2009, he was on sabbatical at Google Inc.,
Mountain View, where he was part of the structured data research group
headed by Alon Halevy.