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.<BR><BR>Right now I simply add a "parent_id" column in ...

The objective of this study is to shed new light on the industrial flow structure embedded in microscopic supplier-buyer relations. We first construct directed networks from actual data from interfirm ...

A novel Bayesian Hierarchical Network Model (BHNM ... By utilizing the river network's structure to integrate flow and stage data from upstream gauges, along with precipitation data from the immediate ...