Algorithm to find articles with similar text

Question

I have many articles in a database (with title,text), I\'m looking for an algorithm to find the X most similar articles, something like Stack Overflow\'s \"Related Questions

Answer 1

Maybe what your looking for is something that does paraphrasing. I only have cursory knowledge of this, but paraphrasing is a natural language processing concept to determine if two passages of text actually mean the same thing - although the may use entirely different words.

Unfortunately I don't know of any tools that allow you to do this (although I'd be interested in finding one)