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» Inverting schema mappings
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SAC
2006
ACM
14 years 1 months ago
Automatic structured query transformation over distributed digital libraries
Structured data and complex schemas are becoming the main way to represent the information many Digital Libraries provide, thus impacting the services they offer. When searching i...
M. Elena Renda, Umberto Straccia
SIGMOD
2007
ACM
91views Database» more  SIGMOD 2007»
14 years 7 months ago
Indexing dataspaces
Dataspaces are collections of heterogeneous and partially unstructured data. Unlike data-integration systems that also offer uniform access to heterogeneous data sources, dataspac...
Xin Dong, Alon Y. Halevy
TIP
2002
146views more  TIP 2002»
13 years 7 months ago
Tracking nonparameterized object contours in video
We propose a new method for contour tracking in video. The inverted distance transform of the edge map is used as an edge indicator function for contour detection. Using the concep...
Hieu Tat Nguyen, Marcel Worring, Rein van den Boom...
JODS
2006
148views Data Mining» more  JODS 2006»
13 years 7 months ago
Discovering the Semantics of Relational Tables Through Mappings
Abstract. Many problems in Information and Data Management require a semantic account of a database schema. At its best, such an account consists of formulas expressing the relatio...
Yuan An, Alexander Borgida, John Mylopoulos
IKE
2004
13 years 9 months ago
Conditional Mapping in Data Mediation
A serious problem facing many organizations today is the need to share information among systems that have been developed separately. Conflicts in the structure and semantics of t...
Paul L. Bergstein, Vishal Shah