The prosperity of human languages is the primary reason why text annotation is so important within natural language processing. As smart and advanced they are becoming, machines still have to learn a lot when it comes to deeper meaning and context. It is the annotation that gives them the correct information.     

Thus, when it comes to giving machines a correct and deeper understanding of intent, sentiment, and technical concepts, correct text annotations within the data are used to train the particular natural language processing model (NLP). With the help of correct text annotations, different types of misunderstandings can be corrected and it can lead to a more accurate interpretation of the desired text at hand.  

What is Text Annotation? 

Every day, internet users interact with different media such as audio, text, videos, and images relying on their brain to process what kind of media they are seeing and make sense out of it. One of the most general types of media is the text that makes up the different languages people use to communicate. As it is commonly used, text annotation requires to be done with comprehensiveness and accuracy.

Algorithms use big amounts of annotated data to train different AI models, which is a part of a bigger data labeling workflow. During the process of annotation, a metadata tag is used to mark the characteristics of a dataset. With the help of text annotation, that data includes important tags that highlight criteria such as phrases, keywords, or sentences. In certain applications, text annotation may also include tagging a variety of sentiments in text, such as “sarcastic” and “angry” to teach the machine how to identify human intent or emotions behind words.

The annotated data which is also termed as training data, is what the machine processes and the goal is to help machines recognize the natural language of humans. This process, combined with annotation and data pre-processing, is known as natural language processing or NLP.   

The Role of Text Annotation in Machine Learning 

With machine learning (ML), machines are trained and taught how to understand, read, analyze, and produce text in a valuable manner for technological interactions with humans. According to the data sources, near about 70% of organizations reported that text is a form of data they use as part of their artificial intelligence solutions. Thus, the revenue-generating cost-savings implications of text-based solutions in the industries are huge.

As a result, the machine learns to communicate capably enough in natural language after being trained on corrected annotated text data. It can also carry out the more repetitive tasks humans would otherwise do. This saves time, resources, and money in a company to enable focus on more strategic activities.


As a form of data annotation, the text annotation tool helps in the machine learning process of assigning meaning to blocks of text, whether they are small phrases, bigger sentences, or full paragraphs. This is done by giving AI modes with extra information in the form of useful definitions, intent, and meaning to increase text as written.