preprocessor

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preprocessor

[¦prē′prä‚ses·ər]
(computer science)
A program that converts data into a format suitable for computer processing.

preprocessor

(programming)
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.

preprocessor

Software that performs some preliminary processing on the input before it is processed by the main program. See preprocessing.
References in periodicals archive ?
After the data preprocessing, the data can accurately reflect the actual situation, so that it is more convenient for the implementation of clustering.
To find the data preprocessing the equation number 21 is to be consider and the values are utilized in equation 6 to calculate the relational coefficient.
Data preprocessing is an important stage in data mining, and it is also a part of a large amount of work.
Each application covers the business background, and problems, data extraction and exploitation, data preprocessing, modeling, model evaluation, findings, and model deployment.
Data preprocessing methods are in such a way important that, in this work, a program was created especially designed to perform this research.
SAS' data preprocessing tools enable a thorough investigation of complex health care claims.
Data preprocessing is an important step in the data mining process.
dealt with some specific features of data preprocessing tasks in LMS Moodle in [5, 10], but they removed the problem of user identification and session identification from their discussion.
NASDAQ: PVSW), a global value leader in embeddable data management and data integration software, today announced the combined power and capabilities of Pervasive DataRush[TM], Pervasive Data Profiler[TM] and Pervasive Data Integrator[TM] are delivering lightning-fast claims data preprocessing for TC3 Health.
For almost a decade we have publically guaranteed CATS to implement any incentive plan, without data preprocessing using custom coded 'stored procedures', without manual intervention, no custom source coding and a guaranteed fixed price and fixed delivery.