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ICDE
2004
IEEE
89views Database» more  ICDE 2004»
16 years 1 months ago
Nested Queries and Quantifiers in an Ordered Context
We present algebraic equivalences that allow to unnest nested algebraic expressions for order-preserving algebraic operators. We illustrate how these equivalences can be applied s...
Norman May, Sven Helmer, Guido Moerkotte
EXTREME
2004
ACM
15 years 5 months ago
Half-steps toward LMNL
Overlap in markup occurs where some markup structures do not nest, such as where the sentence and phrase boundaries of a poem and the metrical line structure describe different hi...
Wendell Piez
COMGEO
2010
ACM
14 years 11 months ago
Flexible isosurfaces: Simplifying and displaying scalar topology using the contour tree
our tree is an abstraction of a scalar field that encodes the nesting relationships of isosurfaces. We show how to use the contour tree to represent individual contours of a scala...
Hamish Carr, Jack Snoeyink, Michiel van de Panne
VLDB
1994
ACM
128views Database» more  VLDB 1994»
15 years 3 months ago
From Nested-Loop to Join Queries in OODB
Most declarative SQL-like query languagesfor object-oriented database systems (OOSQL) are orthogonal languages allowing for arbitrary nesting of expressions in the select-, from-,...
Hennie J. Steenhagen, Peter M. G. Apers, Henk M. B...