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SAC
2006
ACM
15 years 5 months ago
Ontology-based integration for relational databases
In this paper, we show that representation and reasoning techniques used in traditional knowledge engineering and the emerging Semantic Web can play an important role for heteroge...
Dejing Dou, Paea LePendu
AIMSA
2010
Springer
15 years 27 days ago
Expressive Approximations in DL-Lite Ontologies
Abstract. Ontology based data access (OBDA) is concerned with providing access to typically very large data sources through a mediating conceptual layer that allows one to improve ...
Elena Botoeva, Diego Calvanese, Mariano Rodriguez-...
IJCAI
2003
15 years 22 days ago
Practical Partition-Based Theorem Proving for Large Knowledge Bases
Query answering over commonsense knowledge bases typically employs a first-order logic theorem prover. While first-order inference is intractable in general, provers can often b...
Bill MacCartney, Sheila A. McIlraith, Eyal Amir, T...
WWW
2011
ACM
14 years 6 months ago
FACTO: a fact lookup engine based on web tables
Recently answers for fact lookup queries have appeared on major search engines. For example, for the query {Barack Obama date of birth} Google directly shows “4 August 1961” a...
Xiaoxin Yin, Wenzhao Tan, Chao Liu
FQAS
2000
Springer
107views Database» more  FQAS 2000»
15 years 3 months ago
Measuring Effectiveness in Fuzzy Information Retrieval
- We investigate extensions of the classical measurement of effectiveness in information retrieval systems, precision and recall, to situations where the answer is modeled by a fuz...
Maria J. Martín-Bautista, Daniel Sán...