Bayesian Additive Regression Trees (BART) is a tree-based machine learning method that has been successfully applied to regression and classification problems. BART assumes regularisation priors on set of trees work as weak learners very flexible for predicting in the presence non-linearity high-order interactions. In this paper, we introduce an extension BART, called Model (MOTR-BART), conside...

BACKGROUND: Alcoholism is characterized by impaired decision-making (i.e., choosing intoxication in the face of mounting negative consequences). This impairment may involve a reduced brain response to the negative consequences of behavior, which supports an inclination to engage in risky behaviors. The feedback error-related negativity (F-ERN) is hypothesized to reflect the valence attached to ...

Researchers and clinicians frequently use behavioral measures to assess decision making. The most common task that is marketed to clinicians is the Iowa Gambling Task (IGT), thought to assess risky decision making. How does performance on the IGT relate to performance on other common measures of decision making? The present study sought to examine relationships between the IGT, the Balloon Anal...

Bayesian Additive Regression Trees (BART) is a statistical sum of trees model. It can be considered a Bayesian version of machine learning tree ensemble methods where the individual trees are the base learners. However for datasets where the number of variables p is large (e.g. p > 5, 000) the algorithm can become prohibitively expensive, computationally. Another method which is popular for hig...

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The Epstein-Barr virus (EBV) is a B lymphotropic virus that infects the majority of the human population. All EBV strains transform B lymphocytes, but some strains, such as M81, also induce spontaneous virus replication. EBV encodes 22 microRNAs (miRNAs) that form a cluster within the BART region of the virus and have been previously been found to stimulate tumor cell growth. Here we describe t...

A novel function for the binder of Arl two (BART) molecule in pancreatic cancer cells is reported. BART inhibits invasiveness of pancreatic cancer cells through binding to a Ca(2+)-dependent, phosphorylated, guanosine triphosphatase (GTPase) membrane fusion protein, annexin7 (ANX7). A tumor suppressor function for ANX7 was previously reported based on its prognostic role in human cancers and th...

We report that BART plays a role in inhibiting cell invasion by regulating the activity of the Rho GTPase protein RhoA in pancreatic cancer cells. BART was originally identified as a binding partner of ARL2, a small G-protein implicated as a regulator of microtubule dynamics and folding. We show that BART interacts with GTP-bound ARL2 and is required for the binding of GTP-bound ARL2 with activ...

The human herpes virus Epstein-Barr virus (EBV) latently infects and drives the proliferation of B lymphocytes in vitro and is associated with several forms of lymphoma and carcinoma in vivo. The virus encodes ~30 miRNAs in the BART region, the function of most of which remains elusive. Here we have used a new mouse xenograft model of EBV driven carcinomagenesis to demonstrate that the BART miR...

The present study (N = 86) sought to evaluate a laboratory-based behavioral measure of risk taking (the Balloon Analogue Risk Task; BART) and to test associations between this measure and self-report measures of risk-related constructs as well as self-reported real-world risk behaviors. The BART evidenced sound experimental properties, and riskiness on the BART was correlated with scores on mea...