Feature Extraction From Text – AiMantra – Medium

Extraction of good features is integral for the efficient performance of a machine learning model. Input data may be large or it may be redundant or both, so their should efficient feature extraction technique which will transform input into a reduced set of features. In this post let's talk about feature extraction for textual data. Let's look at the two methods implemented in sk-lean for doing this: One tricky thing is that machines are not good with text as compared to numerical values. So it is important to represent these text in a vector form so that efficiency will increased.