utils.py 文件源码

def log_sum_log_semiring(vals):
    """Uses the ``logsumexp`` function in scipy to calculate the log of
    the sum of a set of log values.

    Args:
        vals  (set): List or set of numerical values
    """
    return logsumexp(numpy.asarray([val for val in vals]))


#log_sum = log_sum_log_semiring