主动对话系统调查：问题、方法和前景（英文版）

英文标题：A Survey on Proactive Dialogue Systems: Problems, Methods, and Prospects中文摘要：本综述论文提供有关积极对话系统的综述，包括设计和挑战等方面，以及对话类型和实际应用的相关信息。英文摘要：Proactive dialogue systems, related to a wide range of real-worldconversational applications, equip the conversational agent with the capabilityof leading the conversation direction towards achieving pre-defined targets orfulfilling certain goals from the system side. It is empowered by advancedtechniques to progress to more complicated tasks that require strategi