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VLDB
2004
ACM
203views Database» more  VLDB 2004»
13 years 10 months ago
PLACE: A Query Processor for Handling Real-time Spatio-temporal Data Streams
The emergence of location-aware services calls for new real-time spatio-temporal query processing algorithms that deal with large numbers of mobile objects and queries. In this de...
Mohamed F. Mokbel, Xiaopeng Xiong, Walid G. Aref, ...
ICNP
2000
IEEE
13 years 10 months ago
SCalable Object-tracking through Unattended Techniques (SCOUT)
A scalable object location service can enable users to search for various objects in an environment where many small, networked devices are attached to objects. We investigate two...
Satish Kumar, Cengiz Alaettinoglu, Deborah Estrin
MOBIDE
2003
ACM
13 years 10 months ago
Consistency mechanisms for a distributed lookup service supporting mobile applications
This paper presents a general-purpose distributed lookup service, denoted Passive Distributed Indexing (PDI). PDI stores entries in form of (key, value) pairs in index caches loca...
Christoph Lindemann, Oliver P. Waldhorst
GIS
2004
ACM
14 years 6 months ago
Energy efficient exact kNN search in wireless broadcast environments
The advances in wireless communication and decreasing costs of mobile devices have enabled users to access desired information at any time. Coupled with positioning technologies l...
Bugra Gedik, Aameek Singh, Ling Liu
VLDB
2006
ACM
171views Database» more  VLDB 2006»
14 years 5 months ago
Grid-partition index: a hybrid method for nearest-neighbor queries in wireless location-based services
Abstract Traditional nearest-neighbor (NN) search is based on two basic indexing approaches: object-based indexing and solution-based indexing. The former is constructed based on t...
Baihua Zheng, Jianliang Xu, Wang-Chien Lee, Dik Lu...