def sum_to_weight(node_sum):
    (node, sum_contrib) = node_sum
    updated_weight = (0.15 + (0.85 * sum_contrib))
    return (node, updated_weight)
def sum_to_weight(node_sum):
    (node, sum_contrib) = node_sum
    updated_weight = (0.15 + (0.85 * sum_contrib))
    return (node, updated_weight)