Conversational information seeking (CIS) is concerned with a sequence of interactions between one or more users and an information system. Interactions in CIS are primarily based on natural language dialogue, while they may include other types of interactions, such as click, touch, and body gestures. This monograph provides a thorough overview of CIS definitions, applications, interactions, interfaces, design, implementation, and evaluation. This monograph views CIS applications as including conversational search, conversational question answering, and conversational recommendation. Our aim is to provide an overview of past research related to CIS, introduce the current state-of-the-art in CIS, highlight the challenges still being faced in the community. and suggest future directions.

翻译：对话式信息检索（CIS）关注用户与信息系统之间的一系列交互序列。CIS中的交互主要基于自然语言对话，同时可能包含点击、触摸及肢体手势等其他交互形式。本专著全面概述了CIS的定义、应用场景、交互模式、交互界面、系统设计、实现方法及评估体系。我们将CIS应用分为对话式搜索、对话式问答及对话式推荐三类。本文旨在梳理与CIS相关的历史研究脉络，介绍该领域的前沿进展，指出当前业界面临的挑战，并展望未来发展方向。