Sciweavers

929 search results - page 103 / 186
» Answering imprecise database queries: a novel approach
Sort
View
ICDE
2005
IEEE
131views Database» more  ICDE 2005»
16 years 1 months ago
On the Sequencing of Tree Structures for XML Indexing
Sequence-based XML indexing aims at avoiding expensive join operations in query processing. It transforms structured XML data into sequences so that a structured query can be answ...
Haixun Wang, Xiaofeng Meng
SUM
2009
Springer
15 years 6 months ago
An Argument-Based Approach to Using Multiple Ontologies
Abstract. Logic-based argumentation offers an approach to querying and revising multiple ontologies that are inconsistent or incoherent. A common assumption for logic-based argumen...
Elizabeth Black, Anthony Hunter, Jeff Z. Pan
CIKM
2010
Springer
14 years 10 months ago
Preference query evaluation over expensive attributes
Most database systems allow query processing over attributes that are derived at query runtime (e.g., user-defined functions and remote data calls to web services), making them e...
Justin J. Levandoski, Mohamed F. Mokbel, Mohamed E...
ICDE
2009
IEEE
170views Database» more  ICDE 2009»
16 years 1 months ago
Semantics of Ranking Queries for Probabilistic Data and Expected Ranks
Abstract-- When dealing with massive quantities of data, topk queries are a powerful technique for returning only the k most relevant tuples for inspection, based on a scoring func...
Graham Cormode, Feifei Li, Ke Yi
EDBT
2008
ACM
140views Database» more  EDBT 2008»
15 years 1 months ago
Database Servers Tailored to Improve Energy Efficiency
Database software can be tailored for specific application domains and their required functionality, for specific hardware and its characteristics, or for other purposes. This bri...
Goetz Graefe