Abstract: Systems and processes for more accurate mortgage scoring are described. A proportional hazards model is employed in which not only the occurrence of an event, but also the time to an event such as default of a loan, is considered. In this approach, a hazard rate can be viewed as the chance that an observation will experience an event in the next instant. There are two components to the response, and a binary variable is utilized to indicate whether the event was observed or not, and a time variable. As a result, the number of loans used for modeling is greatly increased, and the time it takes to observe the event, a valuable piece of information in itself, is included in the process. In addition, nonlinear effects are advantageously modeled in a continuous fashion using hat functions to map a series of independent variables. This approach typically yields smaller prediction errors near boundary points.

Abstract: Systems and methods are described for providing multi-level security for a software application. In one system, an application programming interface provides access to secured software applications. A database stores authorizations granting each user access to selected applications, selected application screens, and selected fields within application screens. The application programming interface is configured such that a security software application prevents a user from gaining access to an application, screen, or field unless authorization has previously been given. A further system provides for the assignment of privileges to users of the application. These privileges define the specific functions that a user is allowed to perform with respect to an authorized application, screen, or field.