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» On Bounded Queries and Approximation
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TKDE
2011
234views more  TKDE 2011»
15 years 1 months ago
The World in a Nutshell: Concise Range Queries
—With the advance of wireless communication technology, it is quite common for people to view maps or get related services from the handheld devices, such as mobile phones and PD...
Ke Yi, Xiang Lian, Feifei Li, Lei Chen 0002
VLDB
2006
ACM
171views Database» more  VLDB 2006»
16 years 7 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...
SIGMOD
2008
ACM
203views Database» more  SIGMOD 2008»
16 years 6 months ago
Querying continuous functions in a database system
Many scientific, financial, data mining and sensor network applications need to work with continuous, rather than discrete data e.g., temperature as a function of location, or sto...
Arvind Thiagarajan, Samuel Madden
SIGMOD
2008
ACM
210views Database» more  SIGMOD 2008»
16 years 6 months ago
Private queries in location based services: anonymizers are not necessary
Mobile devices equipped with positioning capabilities (e.g., GPS) can ask location-dependent queries to Location Based Services (LBS). To protect privacy, the user location must n...
Gabriel Ghinita, Panos Kalnis, Ali Khoshgozaran, C...
SIGMOD
2006
ACM
149views Database» more  SIGMOD 2006»
16 years 6 months ago
Efficient query processing on unstructured tetrahedral meshes
Modern scientific applications consume massive volumes of data produced by computer simulations. Such applications require new data management capabilities in order to scale to te...
Stratos Papadomanolakis, Anastassia Ailamaki, Juli...