In 2012 I was trying to turn my PhD thesis into a product for a better guitar tab and song lyrics search engine. The method was precisely this: use cosine simil

In 2012 I was trying to turn my PhD thesis into a product for a better guitar tab and song lyrics search engine. The method was precisely this: use cosine similarity on the content itself (musical instructions parsed from the tabs or the tokens of the lyrics). This way I wasn't just able to get much better results searching than with PageRank but there was another benefit byproduct of this approach in that you could cluster the results and choose a distinct separate cluster for each subsequent result. With google you would not just get bad results at number 1 but results 1-20 would be near duplicates of just a few distinct efforts. Unfortunately I was a terrible software engineer back then and had much to learn about making a product.