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ICDE
2004
IEEE
89views Database» more  ICDE 2004»
15 years 10 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 2 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 9 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 1 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...