NLP or natural language processing text annotation tool helps to annotate the meaningful words from the sentence to make it usable for machine learning understand the string of words and give the answers accordingly. The language humans use naturally while speaking need to be recognizable and understandable for machines to help them interact with humans.

The NLP text annotation can be done with the help of tools or manually and you can find various tools to annotate the texts for natural language processing with better accuracy. LightTag, Prodi and TagTog are the popular text annotation tools that you can use to annotate the texts for natural language processing in machine learning or AI.

NLP is also used for understanding the sentiment analysis of the people from various online sources. And annotating the texts with right tools or with the help of service providers helps to get the best idea about the texts or sentences used to train the machine learning algorithms. In a language the keywords, or meaningful sentence should be highlighted using the annotation techniques that becomes useful while training the computer visions.

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