N - Definitions
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N
named entity
In data mining, a named entity is a phrase that clearly identifies one item from a set of other items that have similar attributes.
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noisy data
Noisy data is a data set that contains extra meaningless data. Almost all data sets will contain a certain amount of unwanted noise.
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noisy text
Noisy text is an electronically-stored communication that cannot be categorized properly by a text mining software program. Noisy text is often caused by an end user's excessive use of idiomatic expressions, abbreviations, chat and text acronyms or business-specific lingo.