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preprocessor

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preprocessor
Software that performs some preliminary processing on the input before it is processed by the main program. See preprocessing.
preprocessor [¦prē′prä‚ses·ər]
(computer science)
A program that converts data into a format suitable for computer processing.
(programming)preprocessor - A program that transforms input data in some way before it is read by the main program. In the case of a compiler, the input is source code. The main advantage of using a preprocessor is that it is possible to change the specification of the input data without changing the main program. The separation can also help to make the system's overall behaviour easier to understand. The disadvantage is that performance may be reduced by the extra input and output performed between the two programs.

For example, the C preprocessor, cpp, handles textual macro substitution (it acts as a "macro preprocessor"), conditional compilation and inclusion of other files.

A preprocessor may be used to transform a program into a simpler language, e.g. to transform C++ into C.
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Established in 2005 as a spin-out company from the University of Warwick, Warwick Warp has developed the first phase of a unique software-based fingerprint preprocessor module which substantially improves fingerprint matching accuracy by dealing with the problems associated with low quality.
Fingerprint technology grant boost by Coventry Evening Telegraph (England)
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A hybrid approach, utilizing Isomap as a preprocessor for the neural network, yields 92% accuracy with a half data sample (a level between the pure Isomap and pure neural network), with a similar (though not as pronounced) degradation in accuracy because of a reduced training sample size.
Neural networks and isomaps: a comparison of dimensionality reduction ... by Christopher, Kevin / Journal of the Colorado-Wyoming Academy of Science
 
 
 
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