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» Extracting Ontologies from Relational Databases
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CIKM
2006
Springer
15 years 1 months ago
Information retrieval from relational databases using semantic queries
Relational databases are widely used today as a mechanism for providing access to structured data. They, however, are not suitable for typical information finding tasks of end use...
Anand Ranganathan, Zhen Liu
CIKM
1998
Springer
15 years 2 months ago
Ontology-Based Extraction and Structuring of Information from Data-Rich Unstructured Documents
We present a new approach to extracting information from unstructured documents based on an application ontology that describes a domain of interest. Starting with such an ontolog...
David W. Embley, Douglas M. Campbell, Randy D. Smi...
DEXAW
2004
IEEE
177views Database» more  DEXAW 2004»
15 years 1 months ago
An Example of the ESTEST Approach to Combining Unstructured Text and Structured Data
In this paper, we demonstrate the use of the ESTEST system, which combines the data integration approach with techniques from Information Extraction in order to allow information ...
Dean Williams, Alexandra Poulovassilis
AAAI
2012
13 years 8 days ago
Ontological Smoothing for Relation Extraction with Minimal Supervision
Relation extraction, the process of converting natural language text into structured knowledge, is increasingly important. Most successful techniques use supervised machine learni...
Congle Zhang, Raphael Hoffmann, Daniel S. Weld
SOFSEM
2004
Springer
15 years 3 months ago
Discovery of Lexical Entries for Non-taxonomic Relations in Ontology Learning
Ontology learning from texts has recently been proposed as a new technology helping ontology designers in the modelling process. Discovery of non–taxonomic relations is understoo...
Martin Kavalec, Alexander Maedche, Vojtech Sv&aacu...