I want to get points every time someone edits a wiki page. However, not all changes are equal. Creating the first revision of a document from a blank page is certainly more valuable than inserting a missing comma.
What is the mechanism that I can use to determine when a significant change is between two versions of a document? Will the percentage difference be sufficient or are there better methods? How can you even calculate the percentage difference between two texts? What would be the threshold of significance? 5% change? 10%?
The programmer in me says that you can give points in proportion to the percentage change. For example, out of a possible 10 points, you will get 3 points for a 10% change, 6 points for a 20% change and say all 10 points for anything more than a 30% change. The writer in me says this is probably not so clear.
In general, I am open to other solutions to the problem of providing fair compensation based on the level of contribution. This is very important to me, so please forgive the open nature of the question.
EDIT: consider other models besides stackoverflow. The model of one wiki with many authors is very different from the model of the question with many answers. Thanks to everyone who answered so far.
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