Survey on Evaluation Methods for Dialogue Systems
It provides a comprehensive overview for researchers and developers, but is incremental as it synthesizes existing work without introducing new methods.
This paper surveys evaluation methods for dialogue systems, categorizing them by system type and presenting both human and automated approaches to reduce reliance on costly human labor.
In this paper we survey the methods and concepts developed for the evaluation of dialogue systems. Evaluation is a crucial part during the development process. Often, dialogue systems are evaluated by means of human evaluations and questionnaires. However, this tends to be very cost and time intensive. Thus, much work has been put into finding methods, which allow to reduce the involvement of human labour. In this survey, we present the main concepts and methods. For this, we differentiate between the various classes of dialogue systems (task-oriented dialogue systems, conversational dialogue systems, and question-answering dialogue systems). We cover each class by introducing the main technologies developed for the dialogue systems and then by presenting the evaluation methods regarding this class.