Sciweavers

995 search results - page 75 / 199
» Optimization of Complex Nested Queries in Relational Databas...
Sort
View
VLDB
2002
ACM
97views Database» more  VLDB 2002»
15 years 1 months ago
Structural Function Inlining Technique for Structurally Recursive XML Queries
Structurally recursive XML queries are an important query class that follows the structure of XML data. At present, it is difficult for XQuery to type and optimize structurally re...
Chang-Won Park, Jun-Ki Min, Chin-Wan Chung
ICDE
2005
IEEE
103views Database» more  ICDE 2005»
16 years 3 months ago
Vectorizing and Querying Large XML Repositories
Vertical partitioning is a well-known technique for optimizing query performance in relational databases. An extreme form of this technique, which we call vectorization, is to sto...
Peter Buneman, Byron Choi, Wenfei Fan, Robert Hutc...
SSDBM
2002
IEEE
149views Database» more  SSDBM 2002»
15 years 6 months ago
A Cost Model for Interval Intersection Queries on RI-Trees
The efficient management of interval data represents a core requirement for many temporal and spatial database applications. With the Relational Interval Tree (RI-tree1 ), an effi...
Hans-Peter Kriegel, Martin Pfeifle, Marco Pöt...
SSDBM
2009
IEEE
126views Database» more  SSDBM 2009»
15 years 8 months ago
Comprehensive Optimization of Declarative Sensor Network Queries
We present a novel sensor network query processing architecture that (a) covers all the query optimization phases that are required to map a declarative query to executable code; ...
Ixent Galpin, Christian Y. A. Brenninkmeijer, Farh...
PPDP
2010
Springer
15 years 11 days ago
Graph queries through datalog optimizations
This paperdescribes the use of a powerful graph query language for querying programs, and a novel combination of transformations for generating efficient implementations of the q...
K. Tuncay Tekle, Michael Gorbovitski, Yanhong A. L...