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» Processing Queries over Distributed XML Databases
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IS
2011
13 years 3 months ago
Optimized query routing trees for wireless sensor networks
In order to process continuous queries over Wireless Sensor Networks (WSNs), sensors are typically organized in a Query Routing Tree (denoted as T) that provides each sensor with ...
Panayiotis Andreou, Demetrios Zeinalipour-Yazti, A...
ICDE
2005
IEEE
107views Database» more  ICDE 2005»
14 years 10 months ago
Venn Sampling: A Novel Prediction Technique for Moving Objects
Given a region qR and a future timestamp qT, a "range aggregate" query estimates the number of objects expected to appear in qR at time qT. Currently the only methods fo...
Yufei Tao, Dimitris Papadias, Jian Zhai, Qing Li
SIGMOD
2009
ACM
219views Database» more  SIGMOD 2009»
14 years 9 months ago
Hermes: a travel through semantics on the data web
The Web as a global information space is developing from a Web of documents to a Web of data. This development opens new ways for addressing complex information needs. Search is n...
Haofen Wang, Thomas Penin, Kaifeng Xu, Junquan Che...
ICDE
2003
IEEE
160views Database» more  ICDE 2003»
14 years 10 months ago
SWAT: Hierarchical Stream Summarization in Large Networks
The problem of statistics and aggregate maintenance over data streams has gained popularity in recent years especially in telecommunications network monitoring, trend-related anal...
Ahmet Bulut, Ambuj K. Singh
DKE
2006
123views more  DKE 2006»
13 years 8 months ago
Cost models for distance joins queries using R-trees
The K-Closest-Pairs Query (K-CPQ), a type of distance join in spatial databases, discovers the K pairs of objects formed from two different datasets with the K smallest distances....
Antonio Corral, Yannis Manolopoulos, Yannis Theodo...