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ICDT
2010
ACM
194views Database» more  ICDT 2010»
13 years 9 months ago
Bag Equivalence of XPath Queries
When a query is evaluated under bag semantics, each answer is returned as many times as it has derivations. Bag semantics has long been recognized as important, especially when ag...
Sara Cohen, Yaacov Y. Weiss
JSYML
2008
72views more  JSYML 2008»
13 years 7 months ago
Perfect trees and elementary embeddings
An important technique in large cardinal set theory is that of extending an elementary embedding j : M N between inner models to an elementary embedding j : M[G] N[G] between ge...
Sy-David Friedman, Katherine Thompson
SIGGRAPH
1993
ACM
13 years 11 months ago
Wavelet radiosity
Radiosity methods have been shown to be an effective means to solve the global illumination problem in Lambertian diffuse environments. These methods approximate the radiosity int...
Steven J. Gortler, Peter Schröder, Michael F....
JSYML
2011
89views more  JSYML 2011»
12 years 10 months ago
Forcing properties of ideals of closed sets
With every σ-ideal I on a Polish space we associate the σ-ideal I∗ generated by the closed sets in I. We study the forcing notions of Borel sets modulo the respective σ-ideals...
Marcin Sabok, Jindrich Zapletal
KDD
2002
ACM
138views Data Mining» more  KDD 2002»
14 years 7 months ago
Learning to match and cluster large high-dimensional data sets for data integration
Part of the process of data integration is determining which sets of identifiers refer to the same real-world entities. In integrating databases found on the Web or obtained by us...
William W. Cohen, Jacob Richman