Sciweavers

250 search results - page 9 / 50
» Tree pattern query minimization
Sort
View
ICPR
2002
IEEE
13 years 12 months ago
Uniformity Testing Using Minimal Spanning Tree
Testing for uniformity of multivariate data is the initial step in exploratory pattern analysis. We propose a new uniformity testing method, which first computes the maximum (sta...
Anil K. Jain, Xiaowei Xu, Tin Kam Ho, Fan Xiao
VLDB
2003
ACM
141views Database» more  VLDB 2003»
14 years 7 months ago
Computing complete answers to queries in the presence of limited access patterns
In data applications such as information integration, there can be limited access patterns to relations, i.e., binding patterns require values to be specified for certain attribut...
Chen Li
ICDE
2002
IEEE
130views Database» more  ICDE 2002»
14 years 8 months ago
Structural Joins: A Primitive for Efficient XML Query Pattern Matching
XML queries typically specify patterns of selection predicates on multiple elements that have some specified tree structured relationships. The primitive tree structured relations...
Shurug Al-Khalifa, H. V. Jagadish, Jignesh M. Pate...
EDBT
2004
ACM
155views Database» more  EDBT 2004»
14 years 7 months ago
Processing Unions of Conjunctive Queries with Negation under Limited Access Patterns
We study the problem of answering queries over sources with limited access patterns. The problem is to decide whether a given query Q is feasible, i.e., equivalent to an executable...
Alan Nash, Bertram Ludäscher
ICDE
2009
IEEE
139views Database» more  ICDE 2009»
14 years 8 months ago
Minimizing Communication Cost in Distributed Multi-query Processing
Increasing prevalence of large-scale distributed monitoring and computing environments such as sensor networks, scientific federations, Grids etc., has led to a renewed interest in...
Jian Li, Amol Deshpande, Samir Khuller