loss function
type: Concept
preferred label: تابع زیان @fa
related: Erlang model

Erlang model
type: Concept
broader: improved Markovian model
preferred label: مدل ارلانگی @fa
related: loss function

improved Markovian model
type: Concept
narrower: Erlang model
preferred label: مدل مارکوفی پیشرفته @fa