“…For Brent crude oil price series, (5,13,26) is the final solution of ( , ℎ, ) by − inference. For WTI crude oil price series, (5,10,27) is the final solution of ( , ℎ, ) by − V inference. To present spatial structure of inference knowledge, three-dimensional stereograms of information distribution matrix at the final solutions are plotted in Figure 2.…”