Sciweavers

14248 search results - page 45 / 2850
» Queries
Sort
View
SIGMOD
2005
ACM
254views Database» more  SIGMOD 2005»
14 years 9 months ago
Conceptual Partitioning: An Efficient Method for Continuous Nearest Neighbor Monitoring
Given a set of objects P and a query point q, a k nearest neighbor (k-NN) query retrieves the k objects in P that lie closest to q. Even though the problem is well-studied for sta...
Kyriakos Mouratidis, Marios Hadjieleftheriou, Dimi...
SCAM
2007
IEEE
14 years 3 months ago
Quality Assessment for Embedded SQL
—The access of information systems to underlying relational databases is commonly programmed using embedded SQL queries. Such embedded queries may take the form of string literal...
Huib van den Brink, Rob van der Leek, Joost Visser
XIMEP
2006
ACM
194views Database» more  XIMEP 2006»
14 years 2 months ago
Template Folding for XPath
We discuss query evaluation for XML-based server systems where the same query is evaluated on every incoming XML message. In a typical scenario, many of the incoming messages will...
Carl-Christian Kanne, Guido Moerkotte
DLOG
2010
13 years 6 months ago
Query Algebra and Query Optimization for Concept Assertion Retrieval
We develop a query algebra that supports efficient assertion retrieval--a natural extension of instance retrieval. The algebra is based on previously developed techniques for index...
Jeffrey Pound, David Toman, Grant E. Weddell, Jiew...
KDD
2007
ACM
169views Data Mining» more  KDD 2007»
14 years 9 months ago
Exploiting underrepresented query aspects for automatic query expansion
Users attempt to express their search goals through web search queries. When a search goal has multiple components or aspects, documents that represent all the aspects are likely ...
Daniel Crabtree, Peter Andreae, Xiaoying Gao