A robust approach should be considered when estimating regression coefficients in multi-response problems. Many models … analyzed; thus, multi-response problems have more applications. The robust regression approach used in this paper is based on M …-estimator methods. One of the most widely used weighting functions used in regression estimation is Huber's function. In multi-response …

In product and process optimization, it is common to have multiple responses to be optimized. This is called multi-response …