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PODS
2004
ACM
158views Database» more  PODS 2004»
16 years 6 months ago
Composing Schema Mappings: Second-Order Dependencies to the Rescue
A schema mapping is a specification that describes how data structured under one schema (the source schema) is to be transformed into data structured under a different schema (the...
Ronald Fagin, Phokion G. Kolaitis, Lucian Popa, Wa...
WEBDB
2009
Springer
131views Database» more  WEBDB 2009»
16 years 1 months ago
Functional Dependency Generation and Applications in Pay-As-You-Go Data Integration Systems
Recently, the opportunity of extracting structured data from the Web has been identified by a number of research projects. One such example is that millions of relational-style H...
Daisy Zhe Wang, Xin Luna Dong, Anish Das Sarma, Mi...
RANDOM
1998
Springer
15 years 10 months ago
Using Approximation Hardness to Achieve Dependable Computation
Abstract. Redundancy has been utilized to achieve fault tolerant computation and to achieve reliable communication in networks of processors. These techniques can only be extended ...
Mike Burmester, Yvo Desmedt, Yongge Wang
DLOG
2011
14 years 10 months ago
Dependencies to Optimize Ontology Based Data Access
Query answering in Ontology Based Data Access (OBDA) exploits the knowledge of an ontology’s TBox to deal with incompleteness of the ABox (or data source). Current query-answerin...
Mariano Rodriguez-Muro, Diego Calvanese
VIS
2007
IEEE
149views Visualization» more  VIS 2007»
16 years 7 months ago
Time Dependent Processing in a Parallel Pipeline Architecture
Pipeline architectures provide a versatile and efficient mechanism for constructing visualizations, and they have been implemented in numerous libraries and applications over the p...
John Biddiscombe, Berk Geveci, Ken Martin, Kenn...