early_stopping(f, delay; distance = -, init_score = 0, min_dist = 0)

Return a function that internally counts by one when distance(best_score, f(...)) <= min_dist, where best_score is the last seen best value of f(...). If the count is greater than or equal to delay, the function returns true, otherwise it returns false. The count is reset when distance(best_score, f(...)) > min_dist.

Examples

			julia> loss = let l = 0
         () -> l += 1
       end; # pseudo loss function that returns increasing values

julia> es = Flux.early_stopping(loss, 3);


julia> for i in 1:10
         @info "Epoch $i"
         es() && break
       end
[ Info: Epoch 1
[ Info: Epoch 2
[ Info: Epoch 3