1. A processor-implemented method for exploring a structured data set, the method comprising: receiving, by a processor, a plurality of bivariate pairs of variables and an input bivariate pair of variables, wherein the plurality of bivariate pairs of variables and the input bivariate pair of variables are based on the structured data set; constructing a graph having a plurality of nodes and a plurality of edges based on the received plurality of bivariate pairs of variables and input bivariate pair of variables; constructing an adjacency matrix based on the constructed graph; calculating a centrality for each node within the plurality of nodes based on the constructed matrix; constructing an orthogonal list based on the plurality of bivariate pairs of variables and the input bivariate pair of variables; and ordering the orthogonal list based on the calculated centrality of each node within the plurality of nodes.