Human-like Agents with diverse and dynamic personality could serve as an important design probe in the process of user-centered design, thereby enabling designers to enhance the user experience of interactive application.In this article, we introduce Evolving Agents, a novel agent architecture that consists of two systems: Personality and Behavior. The Personality system includes three modules: Cognition, Emotion and Character Growth. The Behavior system comprises two modules: Planning and Action. We also build a simulation platform that enables agents to interact with the environment and other agents. Evolving Agents can simulate the human personality evolution process. Compared to its initial state, agents' personality and behavior patterns undergo believable development after several days of simulation. Agents reflect on their behavior to reason and develop new personality traits. These traits, in turn, generate new behavior patterns, forming a feedback loop-like personality evolution.In our experiment, we utilized simulation platform with 10 agents for evaluation. During the evaluation, these agents experienced believable and inspirational personality evolution. Through ablation and control experiments, we demonstrated the outstanding effectiveness of agent personality evolution and all modules of our agent architecture contribute to creating believable human-like agents with diverse and dynamic personalities. We also demonstrated through workshops how Evolving Agents could inspire designers.

翻译：具备多样化与动态人格的类人智能体可作为以用户为中心设计过程中的重要设计探针，从而帮助设计师提升交互应用的用户体验。本文提出演化智能体——一种由人格系统与行为系统构成的新型智能体架构。人格系统包含认知、情绪与性格成长三个模块；行为系统则包含规划与行动两个模块。我们同时构建了支持智能体与环境及其他智能体交互的仿真平台。演化智能体能够模拟人类人格演化过程：经过数日仿真后，智能体的人格与行为模式相较于初始状态会发生符合认知规律的演变。智能体通过行为反思进行推理并发展新的人格特质，这些特质进而催生新的行为模式，形成类似反馈循环的人格演化机制。实验中，我们使用搭载10个智能体的仿真平台进行评估。评估期间，这些智能体经历了符合认知规律且具启发意义的人格演化。通过消融实验与对照实验，我们验证了智能体人格演化的显著有效性，并证明架构中所有模块对创建具有多样化动态人格的逼真类人智能体均有贡献。我们还通过设计研讨会展示了演化智能体如何为设计师提供创作启发。