Sciweavers

ADBIS
2004
Springer
224views Database» more  ADBIS 2004»
14 years 5 months ago
Using Ontologies for Database Query Reformulation
Abstract. Query reformulation techniques based on semantic knowledge have been used in two ways in database management systems, namely for query optimization and for data integrati...
Chokri Ben Necib, Johann Christoph Freytag
ADBIS
2004
Springer
134views Database» more  ADBIS 2004»
14 years 5 months ago
Towards Quadtree-Based Moving Objects Databases
Nowadays, one of the main research issues of great interest is the efficient tracking of mobile objects that enables the effective answering of spatiotemporal queries. This line o...
Katerina Raptopoulou, Michael Vassilakopoulos, Yan...
ADBIS
2004
Springer
105views Database» more  ADBIS 2004»
14 years 5 months ago
Event Database Processing
: The purpose of the current work is to explore and improve the analysis of event data stored in event repositories, enabling the application of specialized event algebra operators...
Joris Mihaeli, Opher Etzion
ADBIS
2004
Springer
124views Database» more  ADBIS 2004»
14 years 5 months ago
Vague Spatial Data Types, Set Operations, and Predicates
Many geographical applications deal with spatial objects that cannot be adequately described by determinate, crisp concepts because of their intrinsically indeterminate and vague n...
Alejandro Pauly, Markus Schneider
ADBIS
2004
Springer
113views Database» more  ADBIS 2004»
14 years 5 months ago
Ipmicra: Toward a Distributed and Adaptable Location Aware Web Crawler
Abstract. Distributed crawling has shown that it can overcome important limitations of the centralized crawling paradigm. However, the distributed nature of current distributed cra...
Odysseas Papapetrou, George Samaras
ADBIS
2004
Springer
124views Database» more  ADBIS 2004»
14 years 5 months ago
Database Caching - Towards a Cost Model for Populating Cache Groups
Web caching keeps single Web objects ready somewhere in caches in the user-to-server path, whereas database caching uses fullfledged database management systems as caches to adapt...
Theo Härder, Andreas Bühmann
ADBIS
2004
Springer
136views Database» more  ADBIS 2004»
14 years 5 months ago
SBQL Views - Prototype of Updateable Views
In this paper we describe a prototype implementation of updateable views called “SBQL Views”. The prototype follows a novel approach to view updates based on the Stack-Based Ap...
Hanna Kozankiewicz, Kazimierz Subieta
ADBIS
2004
Springer
125views Database» more  ADBIS 2004»
14 years 5 months ago
Using XSLT Stylesheets to Transform XPath Queries
Abstract. Often, XML documents stored in an XML database must be transformed by an XSL processor into a client-specific format before queries are submitted. In applications where X...
Sven Groppe, Stefan Böttcher, Reiko Heckel, G...
ADBIS
2004
Springer
147views Database» more  ADBIS 2004»
14 years 5 months ago
A Hybrid Keyword Search across Peer-to-Peer Federated Databases
The need for Keyword search in databases is suggested both by Web integration with legacy database management system and by dynamic Web publication. However, it sacrifices the inh...
Jungkee Kim, Geoffrey Fox
ADBIS
2004
Springer
93views Database» more  ADBIS 2004»
14 years 5 months ago
Query Rewriting Using Views in a Typed Mediator Environment
Abstract. Query rewriting method is proposed for the heterogeneous information integration infrastructure formed by the subject mediator environment. Local as View (LAV) approach t...
Leonid A. Kalinichenko, Dmitry O. Martynov, Sergey...