Orthogonal least trimmed absolute deviation (OLTAD) estimator of the multiple linear errors-in-variables (EIV) model is presented. We show that the OLTAD estimator has the high breakdown point and appropriate properties. A new decimal-integer-coded genetic algorithm(DICGA) and Fast-OLTAD method for solving OLTAD estimators are also proposed. Computational experiments of the OLTAD estimator of t...

This paper outlines some research questions in relation to software process improvement. Software process improvement should be a continuous activity where you go through with a set of activities to achieve a higher level of maturity. These activities can be seen as a four step process; information collection and investigation, decision making and planning, implementation, and evaluation. This ...

due to the fact that assets are recorded at their historical value and they may include unrealized gains (losses), managers may manipulate earnings through the sale of these assets and provide financial information which is not accurate and reliable. the aim of this study is to investigate the relationship between income from asset sales, earnings change and leverage of companies listed on tehr...

There is strong evidence indicating that the existing measures which are designed to detect a single high leverage collinearity-reducing observation are not effective in the presence of multiple high leverage collinearity-reducing observations. In this paper, we propose a cutoff point for a newly developed high leverage collinearity-influential measure δ D i and two existing measures δi and li ...

In this report, we propose a robust mixture of regression based on t-distribution by extending the mixture of t-distributions proposed by Peel and McLachlan (2000) to the regression setting. This new mixture of regression model is robust to outliers in y direction but not robust to the outliers with high leverage points. In order to combat this, we also propose a modified version of the propose...

Approved for public release; distribution is unlimited. ACKNOWLEDGMENTS These studies were conducted with the assistance and cooperation of the Fifth Marine Regiment, Camp Pendleton, CA. We would like to thank Colonel Brooks, Commanding Officer of Fifth Marines, and Major Turner (his S-3), for their unselfish dedication of time and effort in facilitating access to the officers and staff noncomm...