Approaches are described for generating suggestions for new nodes or new relationships in a knowledge graph based on content of data assets represented by existing nodes in the knowledge graph. The knowledge graph is defined by nodes connected by edges. A method includes determining that a data asset represented by a root node of a knowledge graph has been changed, where the changed data asset is represented by a version node connected to the root node. The changed data asset is processed, including: identifying one or more candidate terms in the changed data asset, and comparing each candidate term with each of one or more existing terms from data assets of the knowledge graph other than the changed data asset to obtain (i) one or more of the candidate terms that do not correspond to any existing term or (ii) one or more candidate terms that each corresponds to a respective existing term that is not related to the version node representing the changed data asset. A suggestion node is generated for each of the obtained candidate terms, each suggestion node connected to the version node representing the changed data asset, wherein each suggestion node indicates a suggestion for a new node or a new edge in the knowledge graph. Information indicative of each suggestion is displayed on a user interface.