40 search results - page 4 / 8 » Spatial Outsourcing for Location-based Services |
GIS
2010
ACM
13 years 6 months ago
2010
ACM
With the popularity of location-based services and the abundant usage of smart phones and GPS enabled devices, the necessity of outsourcing spatial data has grown rapidly over the...
GIS
2010
ACM
13 years 6 months ago
2010
ACM
It is cost-effective for data owners to publicize their spatial databases via database outsourcing; however, data privacy and query integrity are major challenges. In this demonst...
SAC
2010
ACM
14 years 2 months ago
2010
ACM
In this paper, we explore the problem of processing a novel type of location based queries, named the location based top-k query, which involves both of spatial and non-spatial sp...
SSD
2007
Springer
14 years 1 months ago
2007
Springer
Abstract. Modern mobile phones and PDAs are equipped with positioning capabilities (e.g., GPS). Users can access public location-based services (e.g., Google Maps) and ask spatial ...
MDM
2007
Springer
14 years 1 months ago
2007
Springer
Spatial generalization has been recently proposed as a technique for the anonymization of requests in location based services. This paper presents the results of an extensive expe...