Shallow parsing, as the name implies, refers to fairly shallow levels of parsing such as POS tagging, chunking, etc. (you will learn chunking in the next session). But such techniques would not be able to check the grammatical structure of the sentence, i.e. whether a sentence is grammatically correct, or understand the dependencies between words in a sentence.
Let’s see why deeper parsing techniques are required.
Thus, POS tagging will although help us identify the linguistic role of the word in a sentence, it wouldn’t enable us to understand how these words are related to each other in a sentence.
In the next few segments, you’ll learn about constituency and dependency parsers.