NLP 101: Topic Modeling for Humans — Part #1
Too Long; Didn't Read
What is Topic Modelling?? There are numerous definition available online, but what I understood from these two words is, topic + modelling — creating/collecting/modelling topics. What are these topics and why do we need to model them? Imagine, while talking to your friend somehow you got little distracted and heard only few things, when asked for your opinion you try to remember the topics or main things they were saying during the conversation — this is called building up theme. Let’s take another example, I am sure many of you have given exams(who hasn’t), in most of the English(or any language) exams, we always get unseen passages and ask to find answers to given questions. In a one or two hour exam it is really difficult to read whole paragraph as you might have other questions to attempt too. I always used a trick here — read the question, search for specific and meaningful topics in the passage related to that question and finally answer it.