He LiLi Miao2025-05-142025-05-142025jz000158-0176https://tustorage.ulb.tu-darmstadt.de/handle/tustorage/33344550A Study of the Non-Linear Relationship Between Urban Morphology and Vitality in Heritage Areas Based on Multi-Source Data and Machine Learning: A Case Study of DalianArticlehttps://doi.org/10.3390/ijgi14040177