We study a regression problem where for some part of the data we observe both label variable (Y) and predictors (X), while other only are given. Such arises, example, when observations costly may require skilled human agent. When conditional expectation E[Y|X] is not exactly linear, one can consider best linear approximation to expectation, which be estimated consistently by least-square estima...

We consider the use of linear multivariable feedback control to achieve a nonovershooting step response. A method is given for designing an LTI state feedback controller to asymptotically track a constant step reference with no overshoot and arbitrarily small rise time. Results are given for both minimum phase and nonminimum phase multivariable LTI systems.

The fashion and increase of consumers cultural is an important problem. This paper studies the effective Socio-Cultural Factors on the fashion trends among the girl student’s in Andimeshk. About 200 girls in Andimeshk (South west of Iran) were randomly chosen. The research method was survey and correlation with questionnaire. The data were analyzed through SPSS package along with Pearson coeffi...