Sciweavers

4790 search results - page 411 / 958
» Reverse Query Processing
Sort
View
ICDCS
2002
IEEE
15 years 9 months ago
Query Optimization to Meet Performance Targets for Wide Area Applications
Recent technology advances have enabled mediated query processing with Internet accessible WebSources. A characteristic of WebSources is that their access costs exhibit transient ...
Vladimir Zadorozhny, Louiqa Raschid
IEEEMSP
2002
IEEE
118views Multimedia» more  IEEEMSP 2002»
15 years 9 months ago
Similarity matching of continuous melody contours for humming querying of melody databases
Music query-by-humming is a challenging problem since the humming query inevitably contains much variation and inaccuracy. Many of the previous methods, which adopt note segmentat...
Yongwei Zhu, Mohan S. Kankanhalli, Qi Tian
IDEAS
2000
IEEE
108views Database» more  IDEAS 2000»
15 years 8 months ago
Plug and Play with Query Algebras: SECONDO-A Generic DBMS Development Environment
We present SECONDO, a new generic environment supporting the implementation of database systems for a wide range of data models and query languages. On the one hand, this framewor...
Stefan Dieker, Ralf Hartmut Güting
SIGMOD
2000
ACM
141views Database» more  SIGMOD 2000»
15 years 8 months ago
Counting, Enumerating, and Sampling of Execution Plans in a Cost-Based Query Optimizer
Testing an SQL database system by running large sets of deterministic or stochastic SQL statements is common practice in commercial database development. However, code defects oft...
Florian Waas, César A. Galindo-Legaria
SIGMOD
1999
ACM
127views Database» more  SIGMOD 1999»
15 years 8 months ago
An Adaptive Query Execution System for Data Integration
Query processing in data integration occurs over network-bound, autonomous data sources. This requires extensions to traditional optimization and execution techniques for three re...
Zachary G. Ives, Daniela Florescu, Marc Friedman, ...