‘Inverse Document Frequency and the Importance of Uniqueness’ – MOZ Blog
Eric Enge says, “In my last column, I wrote about how to use term frequency analysis in evaluating your content vs. the competition’s. Term frequency (TF) is only one part of the TF-IDF approach to information retrieval. The other part is inverse document frequency (IDF), which is what I plan to discuss today.
Today’s post will use an explanation of how IDF works to show you the importance of creating content that has true uniqueness. There are reputation and visibility reasons for doing this, and it’s great for users, but there are also SEO benefits.
If you wonder why I am focusing on TF-IDF, consider these words from a Google article from August 2014: “This is the idea of the famous TF-IDF, long used to index web pages.” While the way that Google may apply these concepts is far more than the simple TF-IDF models I am discussing, we can still learn a lot from understanding the basics of how they work“.
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