What Is Part-of-Speech Tagging?
Learn how part-of-speech tagging is used as a foundation to grammar correction.
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Part-of-speech tagging, often abbreviated as POS tagging, is a fundamental NLP task that involves determining the grammatical category or part of speech of each word in a given text. The primary goal of POS tagging is to label each word with its corresponding part of speech, such as nouns, verbs, adjectives, etc., providing additional context for a word and its part within a sentence.
Naturally, POS tagging is a language-dependent task, and for English, a word will be categorized into one of the nine generally accepted parts of speech: nouns, pronouns, verbs, adverbs, adjectives, prepositions, conjunctions, numerals, and determiners (or articles).
Let's take an example sentence: "The cat sat on the mat." A POS tagger would analyze this sentence and label each word with its appropriate part of speech:
"The" → determiner (DET) ...