Sciweavers

1533 search results - page 43 / 307
» Ordering the attributes of query results
Sort
View
COLT
2001
Springer
14 years 3 days ago
On Using Extended Statistical Queries to Avoid Membership Queries
The Kushilevitz-Mansour (KM) algorithm is an algorithm that finds all the “large” Fourier coefficients of a Boolean function. It is the main tool for learning decision trees ...
Nader H. Bshouty, Vitaly Feldman
WWW
2003
ACM
14 years 25 days ago
Using Index to Manage the Ordering Structure of XML Data in the Nested Relational Sequence Database System
In this poster, we introduce the mechanism of handling the ordering structure of XML data by using the Nested Relational Sequence Database System (NRSD), which is built upon the N...
Ho Lam Lau, Wilfred Ng
ICDE
2005
IEEE
113views Database» more  ICDE 2005»
14 years 9 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
DASFAA
2005
IEEE
134views Database» more  DASFAA 2005»
14 years 1 months ago
An Improved Prefix Labeling Scheme: A Binary String Approach for Dynamic Ordered XML
A number of labeling schemes have been designed to facilitate the query of XML, based on which the ancestor-descendant relationship between any two nodes can be determined quickly....
Changqing Li, Tok Wang Ling
WEBI
2004
Springer
14 years 28 days ago
Querying and Updating a Context-Aware Service Directory in Mobile Environments
Several interesting research directions materialize through the convergence of mobile computing and service-oriented computing. As mobile devices keep getting smaller, cheaper and...
Christos Doulkeridis, Michalis Vazirgiannis