Created
July 16, 2017 14:35
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for n in range(0, N): | |
ad = 0 | |
max_upper_bound = 0 | |
for i in range(0, d): | |
if (numbers_of_selections[i] > 0): | |
average_reward = sums_of_rewards[i] / numbers_of_selections[i] | |
delta_i = math.sqrt(3/2 * math.log(n + 1) / numbers_of_selections[i]) | |
upper_bound = average_reward + delta_i | |
else: | |
upper_bound = 1e400 | |
if upper_bound > max_upper_bound: | |
max_upper_bound = upper_bound | |
ad = i | |
ads_selected.append(ad) | |
numbers_of_selections[ad] = numbers_of_selections[ad] + 1 | |
reward = dataset.values[n, ad] | |
sums_of_rewards[ad] = sums_of_rewards[ad] + reward | |
total_reward = total_reward + reward |
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