| 摘要 |
<p>An apparatus for identifying a mathematical relation between base variables (x1, x2, ...,xp), when a set of input data d is composed of p base variables (x1, x2, ...,xp), and a plurality of data set d(i) of such a data set d is inputted, the data sets d(i) are distinguished by an input data distinguishing parameter i; The principle of the present invention is that when vectors in a q dimensional space, mapped from the input data through q base functions (f1, ...,fq), form a plane, a mathematical relation can is a linear combination of the base functions; A set of base functions (f1, ... fq) are previously prepared; Then sets of the values F(i) = (F1i, ...,Fqi) of the base functions corresponding to the input data d(i) are acquired; The sets F(i) are considered as points in a q dimensional space; Direction cosine of a mapping plane is acquired through cofactors of a determinant of these points, or by solving an eigenvalue problem for determining a plane, the square sum of the perpendicular lines from these points to the plane is minimum; When the direction cosine of the plane is (L1, ...,Lq), the following mathematical relation is outputted: <MATH> The present invention can be used in interpolation of data, identification of a trajectory or form. <IMAGE></p> |
