Sciweavers

237 search results - page 35 / 48
» Querying RDF Data from a Graph Database Perspective
Sort
View
SIGMOD
2008
ACM
167views Database» more  SIGMOD 2008»
14 years 7 months ago
Efficient lineage tracking for scientific workflows
Data lineage and data provenance are key to the management of scientific data. Not knowing the exact provenance and processing pipeline used to produce a derived data set often re...
Thomas Heinis, Gustavo Alonso
BMCBI
2006
164views more  BMCBI 2006»
13 years 7 months ago
BIOZON: a system for unification, management and analysis of heterogeneous biological data
Integration of heterogeneous data types is a challenging problem, especially in biology, where the number of databases and data types increase rapidly. Amongst the problems that o...
Aaron Birkland, Golan Yona
SIGMOD
2000
ACM
161views Database» more  SIGMOD 2000»
13 years 12 months ago
Answering Complex SQL Queries Using Automatic Summary Tables
We investigate the problem of using materialized views to answer SQL queries. We focus on modern decision-support queries, which involve joins, arithmetic operations and other (po...
Markos Zaharioudakis, Roberta Cochrane, George Lap...
CIKM
2005
Springer
14 years 1 months ago
Concept-based interactive query expansion
Despite the recent advances in search quality, the fast increase in the size of the Web collection has introduced new challenges for Web ranking algorithms. In fact, there are sti...
Bruno M. Fonseca, Paulo Braz Golgher, Bruno P&ocir...
DASFAA
2007
IEEE
138views Database» more  DASFAA 2007»
14 years 1 months ago
An Original Semantics to Keyword Queries for XML Using Structural Patterns
XML is by now the de facto standard for exporting and exchanging data on the web. The need for querying XML data sources whose structure is not fully known to the user and the need...
Dimitri Theodoratos, Xiaoying Wu