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ajul / zerosum

Balances zero-sum games so that they have a specified Nash equilibrium.
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Selecting a solution when there are multiple solutions #3

Closed ajul closed 7 years ago

ajul commented 7 years ago

In the two-parameter case there could be multiple solutions without a trivial relationship between them (so the fix_index trick is not sufficient). It would be good to have a mechanism for selecting one. Unfortunately I'm not sure whether there's a general way of doing this that preserves the nice properties of the problem---simply tacking on an extra objective term might work for some cases but I doubt it's a general solution.

ajul commented 7 years ago

Replaced fix_index with an extra regularizer term in the solution. Not quite as efficient, but should be more versatile in selecting a solution.