BO4GK are Basic Ontologies for Geoscience Knowledge Graph，including temporal ontology, spatial ontology, data morphology ontology, data provenance ontology and terminologies in geoscience etc., which can be used as the basis for constructing upper level knowledge graphs for various applications.
GAKG is a multimodal Geoscience Academic Knowledge Graph (GAKG) framework by fusing papers' illustrations, text, and bibliometric data. To our knowledge, GAKG is currently the largest and most comprehensive geoscience academic knowledge graph, consisting more than 68 million triples.
GPKG is a Geoscience Professional Knowledge Graph created cooperatively by geoscientists around the world through a platform called DDE Knowledge Editor. It involves concepts, relationships, attributes and instances of more than 20 geological disciplines including Stratigraphy and Paleontology, etc.
GKGD means Geoscience Knowledge Graph open Directory, a catalog of open knowledge graphs commonly used in geoscience. It provides information about these knowledge graphs such as content introduction and official website address, so that users can quickly navigate and access these knowledge graphs.
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