Semantic Integration is the process of integrating information from diverse sources into a single structure. For example, pulling video conferencing invitations into a calendar app. The primary challenges of semantic integration include understanding the meaning, context, or form of data and properly pairing it up with useful values from another source.
Many knowledge graphs are semantic integrations of data from a range of sources, pulled into entities according to the KGs specific ontology. Additionally, entries from knowledge graphs are often consumed via semantic integration with user data or third party apps.
See also, knowledge fusion, entity resolution, and ontology.