Hi Umair, I didn't use IDF as such as i just scanned through top 10 results for that keyword and then checked each ranking page to see what other variations were they ranking for. As to your main query, this is an old article but still useful if you want to understand IDF: https://moz.com/blog/inverse-document-frequency-and-the-importance-of-uniqueness

#Being online has different rules altogether — Changing ecosystem of teaching Yoga One of the most important things in teaching Yoga has been to learn it under the guidance of a qualified teacher. With better technologies available, slowly it was going global. The reason was that not everyone was able to get access to a good teacher in his area. But a…

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Your sanity is one. — My case for learning to write better I like to talk more than typing it down. And in between speaking my thoughts about something and writing a piece about it is quickly jotting down main pointers on a piece of paper. But, I realised, unless I develop a liking for producing Youtube videos, writing is the effective…

I have been on and off on medium, my blog and on Quora (answering questions) for nearly another year now. This whole time it was okay. Not great, not bad. just ok. Then I wrote a an answer on Quora & it took off. It just did. Numbers are something…

Choose any industry, any skill or any other way to make money. What you hear from outside is how much earning is possible. Or how much the top guys are making. You read about their work or observe their work itself. It seems doable. And you start. And then realisation…

I read a lot. Especially if the articles are written by people who are successful in that particular field. All this while, I used to refrain from commenting on most of these articles. And I mean really well written articles which can make your click. I am not sure of…