University of Michigan researchers have developed a statistical method that can be used for such wide-ranging applications as tracing your ancestry, modeling disease spread and studying how animals ...

One of the method's applications is to give a more complete sense of human ancestry, says Gideon Bradburd, U-M professor of ecology and evolutionary biology. For example, when you send your DNA ...

where J(x) is the Jacobian matrix of partial derivatives of F with respect to x. For optimization problems, the same method is used, where F(x) is the gradient of the objective function and J(x) ...