logsumexp_streaming

template<typename , typename O , typename... Ts>

double logsumexp_streaming ( double &  _alpha, double &  _r, const double &  weight  )

friend

streaming logsumexp computation, see https://arxiv.org/abs/1805.02867

Parameters

_alpha	running maximum for normalization
_r	the sum term while controlling for the maximum
weight	the most recent (log) weight

Returns

double