  In this paper, we propose a multi-view visualization technology for
spatio-temporal knowledge graph(STKG), which utilizes three distinct
perspectives: knowledge tree, knowledge net, and knowledge map, to facilitate a
comprehensive analysis of the STKG. The knowledge tree enables the
visualization of hierarchical interrelation within the STKG, while the
knowledge net elucidates semantic relationships among knowledge entities.
Additionally, the knowledge map displays spatial and temporal distributions via
spatial maps and time axes, respectively. Our visualization technology
addresses the limitations inherent in single-view approaches and the deficiency
of interaction in spatio-temporal perspectives evident in existing
visualization methods. Moreover, we have encapsulated this technology within an
integrated, open-source platform named GeoViz. A demo video of GeoViz can be
accessed at https://github.com/JeremyChou28/GeoViz.
