def UCB(mean, var, zscore):
    return mean + np.sqrt(var) * zscore


# -- flake8
Create an Accessor by parsing an accessor key.
dataset/ETHPy150Open hyperopt/hyperopt/hyperopt/criteria.py/UCB--crossover with--dataset/ETHPy150Open johnpaulett/python-hl7/hl7/accessor.py/Accessor.parse_key