LandGPT: a multimodal large language model for parcel-level land use classification with multi-source data. - Geyuan Zhu; Mi Tang; Yueheng Ma; Zhihui Hu; Chenglong Yu; Xiang Zhang 002; Huanjun Hu; Qingfeng Guan 001; Yao Yao 004 (Int. J. Geogr. Inf. Sci., 2025)