Softmax is a mathematical function frequently used to model probabilistic choice between multiple alternatives associated with different values, e.g. two arms in a bandit task; See for example [1] and [2].

Where was this method first applied?

[1] Shteingart, Hanan, Tal Neiman, and Yonatan Loewenstein. "The role of first impression in operant learning." Journal of Experimental Psychology: General 142.2 (2013): 476.‏

[2] Egelman, David M., Christophe Person, and P. Read Montague. "A computational role for dopamine delivery in human decision-making." Journal of Cognitive Neuroscience 10.5 (1998): 623-630.


According to Sutton and Barto:

The term soft-max for the action selection rule ... is due to Bridle (1990). This rule appears to have been first proposed by Luce (1959)

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.