Sciweavers

CACM
2000
94views more  CACM 2000»
13 years 4 months ago
Abstract Class Hierarchies, Factories, and Stable Designs
Class Hierarchies, Factories, and Stable Designs M uch of the debate about the general aptness of class hierarchies is rooted in the different objectives taxonomists and implemente...
Friedrich Steimann
AAAI
2008
13 years 6 months ago
Turning Web Text and Search Queries into Factual Knowledge: Hierarchical Class Attribute Extraction
A seed-based framework for textual information extraction allows for weakly supervised acquisition of open-domain class attributes over conceptual hierarchies, from a combination ...
Marius Pasca
FODO
1998
Springer
263views Algorithms» more  FODO 1998»
13 years 8 months ago
On-Line Analytical Processing with Conceptual Information Systems
Abstract. A Conceptual Information System consists of a database together with conceptual hierarchies. The management system TOSCANA visualizes arbitrary combinations of conceptual...
Gerd Stumme
EKAW
1999
Springer
13 years 8 months ago
Acquiring Expert Knowledge for the Design of Conceptual Information Systems
Abstract. Conceptual Information Systems unfold the conceptual structure of data stored in relational databases. In the design phase of the system, conceptual hierarchies have to b...
Gerd Stumme
BTW
1999
Springer
129views Database» more  BTW 1999»
13 years 8 months ago
Dual Retrieval in Conceptual Information Systems
Conceptual Information Systems provide a multi-dimensional conceptually structured view on data stored in relational databases. On restricting the expressiveness of the retrieval l...
Gerd Stumme
SIGIR
2009
ACM
13 years 11 months ago
Web-derived resources for web information retrieval: from conceptual hierarchies to attribute hierarchies
A weakly-supervised extraction method identifies concepts within conceptual hierarchies, at the appropriate level of specificity (e.g., Bank vs. Institution), to which attribute...
Marius Pasca, Enrique Alfonseca