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...

This paper examines the dynamic properties of capital structure in a state space framework by modifying the filtering results of Harvey and Stock (1985). A system of stochastic differential equations is used to specify the dynamics for a firm’s debt-toequity ratio (i.e. leverage) and the determinants of capital structure. Statistical issues such as measurement error and missing data are address...

A basic assumption of statistical learning theory is that train and test data are drawn from the same underlying distribution. Unfortunately, this assumption doesn’t hold in many applications. Instead, ample labeled data might exist in a particular ‘source’ domain while inference is needed in another, ‘target’ domain. Domain adaptation methods leverage labeled data from both domains to improve ...

Neck muscle vibration was applied to human subjects to assess the influences of neck abnormal proprioceptive input on the organization and execution of gait. Subjects walked blindfolded to a previously seen target, located straight ahead at ~4 m. Vibration was applied on the right side of the neck, both during and before walking. The variables measured were length, duration, and velocity of tra...