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SIGMOD
2005
ACM
215views Database» more  SIGMOD 2005»
16 years 7 months ago
Nested intervals tree encoding in SQL
Nested Intervals generalize Nested Sets. They are immune to hierarchy reorganization problem. They allow answering ancestor path hierarchical queries algorithmically - without acc...
Vadim Tropashko
JCDL
2006
ACM
111views Education» more  JCDL 2006»
16 years 24 days ago
Measuring inter-indexer consistency using a thesaurus
When professional indexers independently assign terms to a given document, the term sets generally differ between indexers. Studies of inter-indexer consistency measure the percen...
Olena Medelyan, Ian H. Witten
IJBC
2010
132views more  IJBC 2010»
15 years 1 months ago
Construction of Fractal Interpolation Surfaces on Rectangular Grids
We present a general method of generating continuous fractal interpolation surfaces by iterated function systems on an arbitrary data set over rectangular grids and estimate their...
Wolfgang Metzler, Chol Hui Yun
CSFW
2008
IEEE
16 years 1 months ago
Hyperproperties
Properties, which have long been used for reasoning about systems, are sets of traces. Hyperproperties, introduced here, are sets of properties. Hyperproperties can express securi...
Michael R. Clarkson, Fred B. Schneider
COMPGEOM
2008
ACM
15 years 8 months ago
Tighter bounds for random projections of manifolds
The Johnson-Lindenstrauss random projection lemma gives a simple way to reduce the dimensionality of a set of points while approximately preserving their pairwise distances. The m...
Kenneth L. Clarkson