Abstract: A system and method for improving cache efficiency. A method includes selecting at least one cacheable query node of a plurality of query nodes from a semantic knowledge graph, wherein the semantic knowledge graph includes the plurality of query nodes and a plurality of edges, each edge connecting two of the plurality of query nodes and having a connecting score, wherein the connecting score of each edge indicates a strength of relationship between the two nodes connected by the edge; storing a result of executing a query generated based on the at least one cacheable query node in a cache; and generating a query execution plan based on the at least one cacheable query node, wherein the generated query execution plan includes at least one instruction for query execution using the stored result.