ACM MM 2026

GeoChrono: Benchmarking and Rethinking Long-Term Temporal Understanding in Remote Sensing

We introduce ChronoBench, a multidimensional benchmark that decomposes long-term remote sensing understanding into four progressive cognitive levels, and GeoChrono, an MLLM that traces, memorizes, and reasons about long-term geographic evolution.

Yujie Li, Jiancheng Pan, Zhiwei Wei, Jiuniu Wang, Mugen Peng, Wenjia Xu