Sciweavers

2145 search results - page 192 / 429
» Pattern-Based Query Answering
Sort
View
COCOON
1999
Springer
15 years 10 months ago
An External Memory Data Structure for Shortest Path Queries
We present results related to satisfying shortest path queries on a planar graph stored in external memory. Let N denote the number of vertices in the graph and let sort(N) denote...
David A. Hutchinson, Anil Maheshwari, Norbert Zeh
PVLDB
2010
151views more  PVLDB 2010»
15 years 4 months ago
Advanced Processing for Ontological Queries
Ontology-based data access is a powerful form of extending database technology, where a classical extensional database (EDB) is enhanced by an ontology that generates new intensio...
Andrea Calì, Georg Gottlob, Andreas Pieris
WWW
2007
ACM
16 years 7 months ago
BlogScope: spatio-temporal analysis of the blogosphere
We present BlogScope (www.blogscope.net), a system for analyzing the Blogosphere. BlogScope is an information discovery and text analysis system that offers a set of unique featur...
Nilesh Bansal, Nick Koudas
VLDB
2007
ACM
141views Database» more  VLDB 2007»
16 years 10 days ago
BlogScope: A System for Online Analysis of High Volume Text Streams
We present BlogScope (www.blogscope.net), a system for online analysis of temporally ordered streaming text, currently applied to the analysis of the Blogosphere1 . The system cur...
Nilesh Bansal, Nick Koudas
LPNMR
2005
Springer
15 years 11 months ago
An ID-Logic Formalization of the Composition of Autonomous Databases
We introduce a declarative approach for a coherent composition of autonomous databases. For this we use ID-logic, a formalism that extends classical logic with inductive definitio...
Bert Van Nuffelen, Ofer Arieli, Alvaro Corté...