| 摘要 |
PURPOSE:To automatically estimate a dynamics model (a simultaneous differential equation) defined by turning the inter-variable causal relation into a formula so as to decide the parts constitution and the connection of a system based on the initial specifications concerning the relation secured among plural variables forming the system. CONSTITUTION:An inter-variable relation input part 1 describes plural variable values and their increase/decrease relations in the qualitative values like (-), (+), (0), etc. Based on the description of these qualitative values, a polynomial expression including plural variable values, their increase/decrease relations, and their correlation is obtained. The a pair of coefficients of the polynomial expression are obtained at a coefficient train generating part 22. Then the polynomial expression of all pairs of coefficients is calculated at a polynomial expression calculation part 23, and plural simultaneous differential equations satisfying a polynomial expression is obtained. Then one of these equations that has the highest degree of limitation is decided at a simultaneous differential equation generating part 26 and then estimated as a dynamics model of a system. |
