I wouldn't call this a hash because the point of a hash is exactly the opposite. However, with your stated goal of small changes in input producing small changes in output, I would look at using either a soundex function or the Ratcliff algorithm.
I would recommend the simhash, algorithm by Mark Manasse.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.