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courses:rg:2012:distributed-perceptron [2012/12/16 15:39] machacek |
courses:rg:2012:distributed-perceptron [2012/12/16 16:46] machacek |
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- | Let us set learning_rate=0.3, | + | Let us set learning_rate |
X = [(1, 0), (0, 1)] // data | X = [(1, 0), (0, 1)] // data | ||
Y = [0, 1] // classes | Y = [0, 1] // classes | ||
Line 26: | Line 26: | ||
w = [?, ?] | w = [?, ?] | ||
+ | |||
+ | **Answer:** | ||
+ | |||
+ | | x_1 | x_2 | y | w_1 | w_2 | x \dot w | y' | e = y - y' | Δw_1 = α * e * x_1 | Δw_2 = α * e * x_2 | | ||
+ | |1|0|0|0|0|0|0|0|0|0| | ||
+ | |0|1|1|0|0|0|0|1|0|0.3| | ||
+ | |1|0|0|0|0.3|0|0|0|0|0| | ||
+ | |0|1|1|0|0.3|0.3|0|1|0|0.3| | ||
+ | |1|0|0|0|0.6|0|0|0|0|0| | ||
+ | |0|1|1|0|0.6|0.6|1|0|0|0| | ||
+ | |||
+ | w = [0, 0.6] | ||
==== Question 2 ==== | ==== Question 2 ==== | ||
Line 32: | Line 44: | ||
f = ? | f = ? | ||
w = [?, ?] | w = [?, ?] | ||
+ | |||
+ | **Answer 1:** | ||
+ | |||
+ | f(**x**,y) = (y == 0) ? (**x**, 0,0,...,0) : (0, | ||
+ | |||
+ | **Answer 2:** | ||
+ | |||
+ | Acording to English [[http:// | ||
+ | |||
+ | However, I would say, that this holds only for activation treshold = 0. Therefore, this formula cannot be used to compute example from Question 1. | ||
+ | |||
==== Question 3 ==== | ==== Question 3 ==== |