M
Tutorial: ICDM 2008
2
Tutorial Outline
PART I: Privacy Concerns of location-based Services
Location-based Services: Then, Now, What is Next Location Privacy: Why Now? User Perception of Location Privacy What is Special about Location Privacy
4
Location-based Services: Then
Limited to fixed traffic signs
How many years we have used these signs as the ONLY source for LBS
M
Tutorial: ICDM 2008
5
M
ICDM 2008
1
Tutorial Outline
PART I: Privacy Concerns of location-based Services PART II: Realizing Location Privacy in Mobile Environments PART III: Privacy Attack Models PART IV: Privacy-aware Location-based Query Processing PART V: Summary and Future Research Directions
M
Tutorial: ICDM 2008
7
Location-based Services: Why Now ?
GIS/ Spatial Database
Web
Mobile
GIS LBS GIS
Internet Mobile Internet
Mobile Devices
LBS is a convergence of technologies
PART II: Realizing Location Privacy in Mobile Environments PART III: Privacy Attack Models PART IV: Privacy-aware Location-based Query Processing PART V: Summary and Future Research Directions
M
Tutorial: ICDM 2008
10
Tutorial Outline
PART I: Privacy Concerns of location-based Services
Location-based Services: Then, Now, What is Next Location Privacy: Why Now? User Perception of Location Privacy What is Special about Location Privacy
M
Tutorial: ICDM 2008
3
Location-based Services: Definition
In an abstract way
A certain service that is ห้องสมุดไป่ตู้ffered to the users based on their locations
M
Tutorial: ICDM 2008
Location-based Services: Now
Location-based traffic reports:
Range query: How many cars in the free way Shortest path query: What is the estimated
Location-based advertisement:
Range query: Send E-coupons to all customers within five miles of my store
M
Tutorial: ICDM 2008
6
Location-based Services: Why Now ?
Convergence of technologies to create LBS (Brimicombe, 2002)
M
Tutorial: ICDM 2008
8
Location-based Services: What is Next
/abiprdisplay.jsp?pressid=731
travel time to reach my destination
Location-based store finder:
Range query: What are the restaurants within five miles of my location
Nearest-neighbor query: Where is my nearest fast (junk) food restaurant
University of Minnesota
Privacy-Preserving Location Services
Mohamed F. Mokbel
mokbel@ Department of Computer Science and Engineering
University of Minnesota
M
Tutorial: ICDM 2008
9
Location-based Services: What is Next
/press/1097-Mobile+Location+Based+Services+Revenue+to+Reach+$13.3+Billion+Worldwide+by+2013