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APWEB
2010
Springer
13 years 11 months ago
Multiple Continuous Queries Optimization for Processing RFID Streaming Data
This paper investigates the problem of processing multiple continuous queries over RFID streaming data in RFID middleware. RFID middleware collects and filters RFID sensing data wh...
Haipeng Zhang, Wooseok Ryu, Yongxu Piao, Bonghee H...
ICDT
2012
ACM
293views Database» more  ICDT 2012»
11 years 10 months ago
On the complexity of query answering over incomplete XML documents
Previous studies of incomplete XML documents have identified three main sources of incompleteness – in structural information, data values, and labeling – and addressed data ...
Amélie Gheerbrant, Leonid Libkin, Tony Tan
TKDE
2010
251views more  TKDE 2010»
13 years 2 months ago
Exploring Correlated Subspaces for Efficient Query Processing in Sparse Databases
The sparse data is becoming increasingly common and available in many real-life applications. However, relative little attention has been paid to effectively model the sparse data ...
Bin Cui, Jiakui Zhao, Dongqing Yang
ICDE
2011
IEEE
234views Database» more  ICDE 2011»
12 years 11 months ago
How schema independent are schema free query interfaces?
— Real-world databases often have extremely complex schemas. With thousands of entity types and relationships, each with a hundred or so attributes, it is extremely difficult fo...
Arash Termehchy, Marianne Winslett, Yodsawalai Cho...
DEXA
2000
Springer
102views Database» more  DEXA 2000»
14 years 3 days ago
Extending the Re-use of Query Results at Remote Client Sites
In 'Associative Caching' each client computer keeps a copy of its query result sets in its own local database. The purpose is to reduce the size and frequency of queries ...
Jerome Robinson, Barry G. T. Lowden