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» Optimization Techniques for Queries with Expensive Methods
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VLDB
2002
ACM
139views Database» more  VLDB 2002»
14 years 10 months ago
TIMBER: A native XML database
Abstract This paper describes the overall design and architecture of the Timber XML database system currently being implemented at the University of Michigan. The system is based u...
H. V. Jagadish, Shurug Al-Khalifa, Adriane Chapman...
ICDE
2007
IEEE
126views Database» more  ICDE 2007»
14 years 11 months ago
QPIAD: Query Processing over Incomplete Autonomous Databases
Incompleteness due to missing attribute values (aka "null values") is very common in autonomous web databases, on which user accesses are usually supported through media...
Hemal Khatri, Jianchun Fan, Yi Chen, Subbarao Kamb...
VLDB
2005
ACM
85views Database» more  VLDB 2005»
14 years 3 months ago
Pattern Tree Algebras: Sets or Sequences?
XML and XQuery semantics are very sensitive to the order of the produced output. Although pattern-tree based algebraic approaches are becoming more and more popular for evaluating...
Stelios Paparizos, H. V. Jagadish
CASES
2004
ACM
14 years 1 months ago
Reducing energy consumption of queries in memory-resident database systems
The tremendous growth of system memories has increased the capacities and capabilities of memory-resident embedded databases, yet current embedded databases need to be tuned in or...
Jayaprakash Pisharath, Alok N. Choudhary, Mahmut T...
VLDB
2010
ACM
190views Database» more  VLDB 2010»
13 years 8 months ago
Continuous authentication on relational streams
According to the database outsourcing model, a data owner delegates database functionality to a thirdparty service provider, which answers queries received from clients. Authentic...
Stavros Papadopoulos, Yin Yang, Dimitris Papadias