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» Knowledge Representation using Schema Tuple Queries
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DBA
2004
140views Database» more  DBA 2004»
14 years 11 months ago
A Tool for Transforming Conceptual Schemas of Spatio-Temporal Databases with Multiple Representation
Nowadays, classical conceptual models (such as ER or UML) are used for designing database applications. These classical conceptual models usually come with associated CASE tools a...
Mohammed Minout, Christine Parent, Esteban Zim&aac...
SIGMOD
2007
ACM
141views Database» more  SIGMOD 2007»
15 years 9 months ago
Assisted querying using instant-response interfaces
We demonstrate a novel query interface that enables users to construct a rich search query without any prior knowledge of the underlying schema or data. The interface, which is in...
Arnab Nandi, H. V. Jagadish
ECWEB
2005
Springer
149views ECommerce» more  ECWEB 2005»
15 years 3 months ago
Architecture of a Semantic XPath Processor. Application to Digital Rights Management
This work describes a novel strategy for designing an XPath processor that acts over an RDF mapping of XML. We use a modelmapping approach to represent instances of XML and XML Sch...
Rubén Tous, Roberto García, Eva Rodr...
VLDB
2007
ACM
126views Database» more  VLDB 2007»
15 years 9 months ago
Querying Complex Structured Databases
Correctly generating a structured query (e.g., an XQuery or a SQL query) requires the user to have a full understanding of the database schema, which can be a daunting task. Alter...
Cong Yu, H. V. Jagadish
ICDT
2012
ACM
226views Database» more  ICDT 2012»
13 years 7 hour ago
Factorised representations of query results: size bounds and readability
We introduce a representation system for relational data based on algebraic factorisation using distributivity of product over union and commutativity of product and union. We giv...
Dan Olteanu, Jakub Zavodny