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» On the number of rectangular partitions
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DEBU
2008
123views more  DEBU 2008»
14 years 9 months ago
Pathfinder: XQuery Off the Relational Shelf
The Pathfinder project makes inventive use of relational database technology--originally developed to process data of strictly tabular shape--to construct efficient database-suppo...
Torsten Grust, Jan Rittinger, Jens Teubner
COMBINATORICS
1999
139views more  COMBINATORICS 1999»
14 years 9 months ago
A Closer Look at Lattice Points in Rational Simplices
Abstract. We generalize Ehrhart's idea ([Eh]) of counting lattice points in dilated rational polytopes: Given a rational simplex, that is, an n-dimensional polytope with n + 1...
Matthias Beck
PAAPP
2007
398views more  PAAPP 2007»
14 years 9 months ago
Counting people using video cameras
The paper is devoted to the problem of estimating the number of people visible in a camera. It uses as features a portion of foreground pixels in each cell of a rectangular grid. ...
Damian Roqueiro, Valery A. Petrushin
ICDT
2009
ACM
121views Database» more  ICDT 2009»
15 years 10 months ago
Optimal splitters for database partitioning with size bounds
Partitioning is an important step in several database algorithms, including sorting, aggregation, and joins. Partitioning is also fundamental for dividing work into equal-sized (o...
Kenneth A. Ross, John Cieslewicz
BIRTHDAY
2005
Springer
15 years 3 months ago
Modelling Periodic Temporal Notions by Labelled Partitionings - The PartLib Library
The key notion for modelling calendar systems and many other periodic temporal notion is the mathematical concept of a partitioning of the real numbers. A partitioning of R splits ...
Hans Jürgen Ohlbach