Definition: Lists that share items, but are structurally independent.
Aggregate parent (I am a part of or used in ...)
Aggregate child (... is a part of or used in me.)
Note: The lists are interweaved through items. For instance, we may keep people on three orthogonal lists by hair color, gender, and country of residence or data values in a sparse matrix on two orthogonal lists by row and column. Inserting an item means inserting it into each list as appropriate.
A lab exercise with four attributes. PowerPoint lecture notes of using orthogonal lists to implement a sparse matrix.
If you have suggestions, corrections, or comments, please get in touch with Paul E. Black.
Entry modified 3 November 2010.
HTML page formatted Tue Dec 6 16:16:32 2011.
Cite this as:
Paul E. Black, "orthogonal lists", in Dictionary of Algorithms and Data Structures [online], Paul E. Black, ed., U.S. National Institute of Standards and Technology. 3 November 2010. (accessed TODAY) Available from: http://www.nist.gov/dads/HTML/orthogonalLists.html