'Similarity' in Data Mining

Question

In the field of Data Mining, is there a specific sub-discipline called \'Similarity\'? If yes, what does it deal with. Any examples, links, references will be helpful.

Answer 1

There are lots of similarity measurement used in data mining. for text mining, to find similarity in texts, cosine similarity, jaccard similarity widely used

For reference, you can see raghavan and amnnings information retrieval book