A method for generating lower-dimension graph representations is disclosed. The may include obtaining a graph having at least one primary node, a plurality of secondary nodes, and a plurality of edges connecting the at least one primary node to the plurality of secondary nodes. Further, the method may include determining the graph as at least one of a sparse graph or a dense graph, using primary connectivity data and secondary connectivity data associated with the graph; and augmenting the graph with the secondary connectivity data to produce an augmented graph, based on the graph being the sparse graph. The secondary connectivity data may be indicative of a set of knowledge graphs associated with the plurality of secondary nodes. Furthermore, the method may include generating the lower-dimension graph representations for the augmented graph.