string reduction - meaning and definition. What is string reduction
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What (who) is string reduction - definition

PROCESS OF REDUCING THE NUMBER OF RANDOM VARIABLES UNDER CONSIDERATION
Dimension reduction; Dimensionality Reduction; Dimensionality reduction algorithm; Linear dimensionality reduction
  • A visual depiction of the resulting LDA projection for a set of 2D points.
  • A visual depiction of the resulting PCA projection for a set of 2D points.

string reduction      
A reduction system where an expression is represented as a string of function names, constants and parentheses. It is reduced by replacing parts of the string representing subterms by their value. It is harder to represent sharing of subexpressions in string reduction than in graph reduction. (1995-02-06)
Dimensionality reduction         
Dimensionality reduction, or dimension reduction, is the transformation of data from a high-dimensional space into a low-dimensional space so that the low-dimensional representation retains some meaningful properties of the original data, ideally close to its intrinsic dimension. Working in high-dimensional spaces can be undesirable for many reasons; raw data are often sparse as a consequence of the curse of dimensionality, and analyzing the data is usually computationally intractable (hard to control or deal with).
String (computer science)         
  • (Hyper)cube of binary strings of length 3
DATA TYPE REPRESENTING A FINITE SEQUENCE OF ENCODED CHARACTERS
String algorithm; String algorithms; String data type; String (computing); StringBuffer and StringBuilder; Text string; String (programming); Character string; Binary string; String datatype; Character string (computer science); String Object; String manipulation; StringBuffer; StringBuilder; Java.lang.String; String handling; String Buffer; String (computer programming); String-oriented; Stringology; Bytestring; Byte string; String type; Pascal string; String (software); String (formal languages); String length; Sequence of symbols; Block move; String copy; Character strings; String (code); Strings (code); Data string; Finite word
In computer programming, a string is traditionally a sequence of characters, either as a literal constant or as some kind of variable. The latter may allow its elements to be mutated and the length changed, or it may be fixed (after creation).

Wikipedia

Dimensionality reduction

Dimensionality reduction, or dimension reduction, is the transformation of data from a high-dimensional space into a low-dimensional space so that the low-dimensional representation retains some meaningful properties of the original data, ideally close to its intrinsic dimension. Working in high-dimensional spaces can be undesirable for many reasons; raw data are often sparse as a consequence of the curse of dimensionality, and analyzing the data is usually computationally intractable (hard to control or deal with). Dimensionality reduction is common in fields that deal with large numbers of observations and/or large numbers of variables, such as signal processing, speech recognition, neuroinformatics, and bioinformatics.

Methods are commonly divided into linear and nonlinear approaches. Approaches can also be divided into feature selection and feature extraction. Dimensionality reduction can be used for noise reduction, data visualization, cluster analysis, or as an intermediate step to facilitate other analyses.