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ICDE
2005
IEEE
113views Database» more  ICDE 2005»
16 years 6 months ago
On the Optimal Ordering of Maps and Selections under Factorization
The query optimizer of a database system is confronted with two aspects when handling user-defined functions (UDFs) in query predicates: the vast differences in evaluation costs b...
Thomas Neumann, Sven Helmer, Guido Moerkotte
ICDE
2005
IEEE
185views Database» more  ICDE 2005»
16 years 6 months ago
A Multiresolution Symbolic Representation of Time Series
Efficiently and accurately searching for similarities among time series and discovering interesting patterns is an important and non-trivial problem. In this paper, we introduce a...
Vasileios Megalooikonomou, Qiang Wang, Guo Li, Chr...
216
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ICDE
2005
IEEE
131views Database» more  ICDE 2005»
16 years 6 months ago
Improving Preemptive Prioritization via Statistical Characterization of OLTP Locking
OLTP and transactional workloads are increasingly common in computer systems, ranging from ecommerce to warehousing to inventory management. It is valuable to provide priority sch...
David T. McWherter, Bianca Schroeder, Anastassia A...
ICDE
2005
IEEE
122views Database» more  ICDE 2005»
16 years 6 months ago
Uncovering Database Access Optimizations in the Middle Tier with TORPEDO
A popular architecture for enterprise applications is one of a stateless object-based server accessing persistent data through Object-Relational mapping software. The reported ben...
Bruce E. Martin
ICDE
2005
IEEE
240views Database» more  ICDE 2005»
16 years 6 months ago
Adaptive Processing of Top-K Queries in XML
The ability to compute top-k matches to XML queries is gaining importance due to the increasing number of large XML repositories. The efficiency of top-k query evaluation relies o...
Amélie Marian, Divesh Srivastava, Nick Koud...