superimposed coding

superimposed coding

[¦sü·pər·im′pōzd ′kōd·iŋ]
(computer science)
A means of placing many keywords in a single card area, where they can be scanned simultaneously.
References in periodicals archive ?
Techniques for signature extraction such as Word Signature (WS) [2,3,4,6], Superimposed Coding (SC) [1,2,3,4,5,6,10], Multilevel Superimposed Coding [12], Run Length Encoding (RL) [3,4,6], Bit-block Compression (BC) [3,4], Variable Bit-block Compression (VBC) [4,6] have been reported.
An example of Superimposed Coding and a sample query evaluation is given below.
However a signature at non-leaf node is formed by superimposed coding from all text blocks indexed by the sub-tree of which the signature is the root.