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IJCSA
2008
126views more  IJCSA 2008»
13 years 4 months ago
The GOQL Language and its Formal Specifications
The Graphical Object Query Language (GOQL) is a graphical query language that complies with the ODMG standard and runs on top of the o2 DBMS. The language provides users with the ...
Euclid Keramopoulos, Philippos Pouyioutas, Tasos P...
CLEF
2010
Springer
13 years 4 months ago
Ambiguity of Queries and the Challenges for Query Language Detection
In this paper, a sample set of 510 simple searches from the TEL action log 2009 is analyzed for query content and query language. More than half of the queries are for named entiti...
Juliane Stiller, Maria Gäde, Vivien Petras
SIGMOD
2010
ACM
250views Database» more  SIGMOD 2010»
13 years 4 months ago
Expressive and flexible access to web-extracted data: a keyword-based structured query language
Automated extraction of structured data from Web sources often leads to large heterogeneous knowledge bases (KB), with data and schema items numbering in the hundreds of thousands...
Jeffrey Pound, Ihab F. Ilyas, Grant E. Weddell
SEBD
1997
134views Database» more  SEBD 1997»
13 years 5 months ago
A Systematic Approach to Multidimensional Databases
Abstract. Multidimensional databases are large collections of data, often historical, used for sophisticated analysis oriented to decision making. This activity is supported by an ...
Luca Cabibbo, Riccardo Torlone
W3C
1998
13 years 5 months ago
A Query Language for XML
An important application of XML is the interchange of electronic data (EDI) between multiple data sources on the Web. As XML data proliferates on the Web, applications will need t...
Mary F. Fernandez, Dan Suciu
DS
1997
97views Database» more  DS 1997»
13 years 5 months ago
A Formalization of ODMG Queries
The ODMG proposal has helped to focus the work on object-oriented databases (OODBs) onto a common object model and query language. Nevertheless there are several shortcomings of t...
Holger Riedel, Marc H. Scholl
DBSEC
2000
102views Database» more  DBSEC 2000»
13 years 5 months ago
Extending SQL's Grant and Revoke Operations, to Limit and Reactivate Privileges
We propose two extensions to the SQL grant/revoke security model. In SQL, grants are unconditional, so the grantor must simply trust the recipient's discretion. We allow a gr...
Arnon Rosenthal, Edward Sciore
AAAI
2000
13 years 5 months ago
A Conjunctive Query Language for Description Logic Aboxes
A serious shortcoming of many Description Logic based knowledge representation systems is the inadequacy of their query languages. In this paper we present a novel technique that ...
Ian Horrocks, Sergio Tessaris
SEBD
2003
159views Database» more  SEBD 2003»
13 years 5 months ago
Spatial Tree Logics to reason about Semistructured Data
The Ambient Logic is a modal logic proposed to describe the structural and computational properties of distributed and mobile computations. The static part of the Ambient Logic is,...
Giovanni Conforti, Giorgio Ghelli
GVD
2004
94views Database» more  GVD 2004»
13 years 6 months ago
MIWeb: Mediator-based Integration of Web Sources
MIWeb realizes a mediator-based integration of heterogeneous metadata sources over the Web. Mediators are well known from database integration. They improve the quality of search ...
Susanne Busse, Thomas Kabisch