A note on ALSCAL: The estimation of the additive constant |
| |
| Authors: | N. D. Verhelst |
| |
| Affiliation: | (1) State University of Utrecht, The Netherlands;(2) Rijksaniversiteit Utrecht, Subfaculteit der psychologie, St. Jacobsstraat 14, 3511 BS Utrecht, The Netherlands |
| |
| Abstract: | A method is given for the least squares regression of a squared variabled2 on the squared variable 02, where the relation between 0 andd is linear. The problem arises in MDS-algorithms where the loss function is defined in terms of squared distances (e.g., ALSCAL). It is pointed out that the Lagrangian multiplier is a root of fourth degree polynomial. |
| |
| Keywords: | additive constant squared distance loss function in MDS |
| 本文献已被 SpringerLink 等数据库收录！ |
|
