I have never done any serious SQL design before. Anyways I have to store a hierarchical data structure, similar to a tree in a SQL database.Right now I simply add a "parent_id" column in each of ...

The availability of large volumes of data is a key requirement in the development of efficient, robust, and advanced machine learning based prediction models. This paper introduces the ImageNet ...

A. N. Pettitt, T. T. Tran, M. A. Haynes, J. L. Hay, A Bayesian Hierarchical Model for Categorical Longitudinal Data from a Social Survey of Immigrants, Journal of the ...

In this article we develop Patz's (1996) hierarchical rater model (HRM) for polytomous item response data scored by multiple raters, and show how it can be used to scale examinees and items, to model ...