Intelligent predictive methods have the power to reliably estimate water saturation (Sw) compared conventional experimental commonly performed by petrphysicists. However, due nonlinearity and uncertainty in data set, prediction might not be accurate. There exist new machine learning (ML) algorithms such as gradient boosting techniques that shown significant success other disciplines yet been ex...

We present a deterministic algorithm running in space O ? log 2 n= log logn solving the connectivity problem on strongly unambiguous graphs. In addition, we present an O(logn) time-bounded algorithm for this problem running on a parallel pointer machine.