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Mapper Meaning: Definition, Examples, and Translations

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mapper

[ˈmæpər ]

Definition

Context #1 | Noun

computer programming

A mapper is a function that transforms input data into a different format or structure. It is commonly used in the context of data processing or data analysis.

Synonyms

converter, processor, transformer.

Which Synonym Should You Choose?

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Word Description / Examples
mapper

Mapper is typically used in the context of mapping or relating data from one form to another, especially in programming or geographic applications.

  • The mapper function converts user data to a standardized format.
  • In the GIS system, the mapper visualizes spatial information on the map.
transformer

Transformer is frequently used in contexts where something is being significantly changed in form, structure, or nature, often used in electrical engineering and machine learning.

  • The transformer converts high voltage electricity to a lower voltage.
  • In AI, a transformer model is used to improve language translation accuracy.
converter

Converter is often used when changing the format, type, or unit of something, usually technology, media, or data.

  • The file converter changed the document from PDF to Word format.
  • He used a currency converter to find out how much his dollars were worth in euros.
processor

Processor is common in contexts involving handling, manipulating, and processing data or tasks, particularly in computing and machinery.

  • The image processor enhanced the quality of the photograph.
  • A fast processor is crucial for gaming computers to handle complex graphics.

Examples of usage

  • A mapper function in a MapReduce programming model processes key-value pairs.
  • The mapper takes the input data and converts it into intermediate key-value pairs.
  • MapReduce frameworks like Hadoop rely heavily on mappers for distributed data processing.

Translations

To see the translation, please select a language from the options available.

Origin of 'mapper'

The term 'mapper' originated from the field of cartography, where it referred to a person who creates maps. In computer programming, the concept of mapping data from one form to another was adapted, leading to the use of 'mapper' to describe functions that perform this transformation.

See also: map, mapmaker, mapmaking, mapping, unmapped.

Word Frequency Rank

This word's position of #34,944 indicates it's among the more rare English words. While understanding it broadens your vocabulary, focus on more common words first.