NIST

P-tree

(data structure)

Definition: (1) A spatial access method that defines hyperplanes, in addition to the orthogonal dimensions, which node boundaries may parallel. Space is split by hierarchically nested polytopes (multidimensional boxes with nonrectangular sides). The R-tree is a special case that has no additional hyperplanes. (2) A spatial access method that splits space by hierarchically nested polytopes. The R-tree is a special case in which all polytopes are boxes.

Generalization (I am a kind of ...)
tree, spatial access method.

Specialization (... is a kind of me.)
R-tree.

Aggregate child (... is a part of or used in me.)
polytope.

Note: (2) by Jagadish after [GG98].

Author: PEB

Implementation

Implementations of P-tree (1) insert (C and Pascal), delete max (C and Pascal), and head (C and Pascal)
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Entry modified 16 November 2009.
HTML page formatted Fri Feb 23 10:06:08 2018.

Cite this as:
Paul E. Black, "P-tree", in Dictionary of Algorithms and Data Structures [online], Vreda Pieterse and Paul E. Black, eds. 16 November 2009. (accessed TODAY) Available from: https://www.nist.gov/dads/HTML/ptree.html