def get_normalization_params(data):
    """
    Obtain parameters for normalization
    :param data: time series
    :return: dict with string keys
    """
    norm_params = {}
    norm_params['mean'] = data.mean()
    norm_params['std'] = data.std()
    norm_params['max'] = data.max()
    norm_params['min'] = data.min()

    return norm_params