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SIGMOD
2009
ACM
175views Database» more  SIGMOD 2009»
16 years 6 months ago
Keyword search on structured and semi-structured data
Empowering users to access databases using simple keywords can relieve the users from the steep learning curve of mastering a structured query language and understanding complex a...
Yi Chen, Wei Wang 0011, Ziyang Liu, Xuemin Lin
ACJ
2006
85views more  ACJ 2006»
15 years 6 months ago
Tree Automata for Schema-Level Filtering of XML Associations
In this paper we present query filtering techniques based on bottom-up tree automata for XML access control. In our authorization model (RXACL), RDF statements are used to represen...
Vaibhav Gowadia, Csilla Farkas
SEKE
2007
Springer
16 years 13 days ago
Query Processing in Paraconsistent Databases in the Presence of Integrity Constraints
In this paper, we present an approach to query processing for paraconsistent databases in the presence of integrity constraints. Paraconsistent databases are capable of representi...
Navin Viswanath, Rajshekhar Sunderraman
ICPR
2010
IEEE
15 years 8 months ago
An RST-Tolerant Shape Descriptor for Object Detection
In this paper, we propose a new object detection method that does not need a learning mechanism. Given a hand-drawn model as a query, we can detect and locate objects that are sim...
Chih-Wen Su, Mark Liao, Yu-Ming Liang, Hsiao-Rong ...
ER
2004
Springer
103views Database» more  ER 2004»
15 years 11 months ago
Querying Heterogeneous Spatial Databases: Combining an Ontology with Similarity Functions
This paper uses a knowledge-based approach to querying heterogeneous spatial databases based on an ontology and conceptual and attribute similarities. The ontology, which may be in...
Mariella Gutiérrez, M. Andrea Rodríg...