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COCOON
1998
Springer
15 years 10 months ago
On Multi-dimensional Hilbert Indexings
Indexing schemes for grids based on space- lling curves (e.g., Hilbert indexings) nd applications in numerous elds. Hilbert curves yield the most simple and popular scheme. We exte...
Jochen Alber, Rolf Niedermeier
DEXAW
1997
IEEE
125views Database» more  DEXAW 1997»
15 years 10 months ago
Can we Rely on SQL?
It is important for any data language that it enables many people to derive correct information from a databases in a simple, effective way with predictable performance. In an ana...
J. H. ter Bekke
ICIAP
1997
ACM
15 years 10 months ago
Two-Step Parameter-Free Elastic Image Registration with Prescribed Point Displacements
A two-step parameter-free approach for non-rigid medical image registration is presented. Displacements of boundary structures are computed in the rst step and then incorporated a...
Wladimir Peckar, Christoph Schnörr, Karl Rohr...
EKAW
2000
Springer
15 years 10 months ago
A Formal Ontology of Properties
A common problem of ontologies is that their taxonomic structure is often poor and confusing. This is typically exemplified by the unrestrained use of subsumption to accomplish a v...
Nicola Guarino, Christopher A. Welty
CORR
2007
Springer
120views Education» more  CORR 2007»
15 years 6 months ago
Random subcubes as a toy model for constraint satisfaction problems
We present an exactly solvable random-subcube model inspired by the structure of hard constraint satisfaction and optimization problems. Our model reproduces the structure of the s...
Thierry Mora, Lenka Zdeborová