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DEXA
2009
Springer
151views Database» more  DEXA 2009»
15 years 4 months ago
Automatic Extraction of Ontologies Wrapping Relational Data Sources
Describing relational data sources (i.e. databases) by means of ontologies constitutes the foundation of most of the semantic based approaches to data access and integration. In sp...
Lina Lubyte, Sergio Tessaris
ICDT
2007
ACM
97views Database» more  ICDT 2007»
15 years 4 months ago
Combining Temporal Logics for Querying XML Documents
Close relationships between XML navigation and temporal logics have been discovered recently, in particular between logics LTL and CTL⋆ and XPath navigation, and between the µ-c...
Marcelo Arenas, Pablo Barceló, Leonid Libki...
DEXAW
2007
IEEE
125views Database» more  DEXAW 2007»
15 years 4 months ago
Ontology-Based Retrieval of Human Speech
As part of the general growth and diversification of media in different modalities, the presence of information in the form of human speech in the world-wide body of digital conte...
Javier Tejedor, Roberto García, Miriam Fern...
SIGMOD
2006
ACM
232views Database» more  SIGMOD 2006»
15 years 10 months ago
High-performance complex event processing over streams
In this paper, we present the design, implementation, and evaluation of a system that executes complex event queries over real-time streams of RFID readings encoded as events. The...
Eugene Wu 0002, Yanlei Diao, Shariq Rizvi
GIS
2009
ACM
15 years 2 months ago
A multidimensional model representing continuous fields in spatial data warehouses
Data warehouses and On-Line Analytical Processing (OLAP) provide an analysis framework supporting the decision making process. In many application domains, complex analysis tasks ...
Alejandro A. Vaisman, Esteban Zimányi