SafeStep：为体弱或痴呆老年人提供的人工智能旅行辅助
SafeStep: AI-powered Travel Assistance for Elderly People with Frailty or Dementia
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中文总结 AI 辅助
针对体弱或痴呆老人出行难题，SafeStep利用旅行图表示，结合大语言模型与Anticip8行为预测引擎，生成个性化失败场景并提出干预措施。经实验和实地研究评估，结合两者的方法性能可靠，虽界面可用性待改进，但能提升旅行信心与安全感，还可拓展应用于其他领域。
中文摘要 AI 辅助
英国超百万人口受体弱或痴呆影响，严重削弱其在城市出行能力。本文介绍了SafeStep，一个人工智能驱动的旅行系统。其核心是一种新颖的旅行图表示，将路线规划与预测建模相结合。在旅程各阶段，系统利用大语言模型和Anticip8行为预测引擎生成个性化失败场景，提出针对性干预措施并评估其对结果概率的影响，以选择使到达目的地可能性最大化的干预措施。通过旅行图生成实验和26次实地旅行研究评估，结果表明结合Anticip8进行失败预测和基于GPT的模型进行干预评估性能最可靠。用户反馈显示SafeStep提高了旅行中的信心和安全感，但界面可用性有待改进。未来将改进并发布SafeStep，该人工智能系统还可应用于心理健康、职业指导和成瘾治疗等领域。
英文摘要
More than a million people in the UK suffer from frailty or dementia, which severely compromise their ability to travel in urban environments. This paper presents SafeStep, an AI-driven travel system that assists elderly users with their journeys. At the core of SafeStep is a novel travel graph representation, which integrates route planning with predictive modelling. For each stage of a journey, the system (i) generates personalized failure scenarios using a combi-nation of LLMs and the Anticip8 behavioral prediction engine, (ii) proposes targeted interventions, and (iii) estimates the impact of interventions on out-come probabilities. This enables SafeStep to select interventions that maximize the likelihood of the person reaching their destination. SafeStep was evaluated through experiments on travel graph generation and a field study involving 26 real-world journeys. Results showed that combining Anticip8 for failure pre-diction with GPT-based models for intervention evaluation yields the most re-liable performance. User feedback indicated that SafeStep improves confidence and perceived safety during travel, although interface usability needs to be im-proved for the target demographic. In the future, we would like to improve and release SafeStep. The AI system that was developed for SafeStep could be ap-plied in other areas, such as mental health, career coaching and addiction treatment.
