In reinforcement learning (RL) , one of the key components is policy evaluation, which aims to estimate the value function (i.e., expected long-term accumulated reward) of a policy. With a good policy evaluation method, the RL algorithms will estimate the value function more accurately and find a better policy. When the state space is large or continuous Gradient-based Temporal Difference(GTD) ...

AIM To evaluate the short- and long-term results of endoscopic ultrasound-guided transmural drainage (EUS-GTD) for pancreatic fluid collection (PFC) and identify the predictive factors of treatment outcome for walled-off necrosis (WON) managed by EUS-GTD alone. METHODS We investigated 103 consecutive patients with PFC who underwent EUS-GTD between September 1999 and August 2015. Patients were...

OBJECTIVES Gestational Trophoblastic Disease (GTD) comprises a group of disorders that derive from the placenta. Even if full recovery is generally expected, women diagnosed with GTD have to confront: the loss of a pregnancy, a potentially life-threatening diagnosis and delays in future pregnancies. The aim of the study is to evaluate the psychological impact of GTD, focusing on perceived ferti...

Gestational trophoblastic disease (GTD) is a spectrum of cellular proliferations arising from trophoblast. Their invasive and metastatic potential sometimes requires chemotherapy and/or surgery. Current management is generally associated with favourable prognosis. Therefore, treatments must be chosen according to the desire for further childbearing of each patient. The European Organisation for...

The role of surgery in GTD has been outlined and explained in detail. The importance of accurate diagnosis, clinical assessment, patient resuscitation and support, individualization of management and patient selection has been stressed. The prognosis for patients with GTD is now a successful outcome in 70-100% of cases, depending on the risk factors present. Cerebral lesions still present a poo...

UNLABELLED A Genomic Target Database (GTD) has been developed having putative genomic drug targets for human bacterial pathogens. The selected pathogens are either drug resistant or vaccines are yet to be developed against them. The drug targets have been identified using subtractive genomics approaches and these are subsequently classified into Drug targets in pathogen specific unique metaboli...

We have investigated and applied a hybrid method for the electromagnetic scattering and radiation problem in the mid to high frequency range. The method is based on Geometrical Theory of Diffraction (GTD) and standard Galerkin Boundary Element Method (BEM, also called MM) such that BEM is used on details that are small compared to the wavelength, and the GTD-approximation is used on details whi...

With every nontrivial connected algebraic group G we associate a positive integer gtd(G) called the generic transitivity degree of G and equal to the maximal n such that there is a nontrivial action of G on an irreducible algebraic variety X for which the diagonal action of G on Xn admits an open orbit. We show that gtd(G) 6 2 (respectively, gtd(G) = 1) for all solvable (respectively, nilpotent...

We have investigated two kinds of hybrid methods for the electromagnetic scattering problem in the mid-frequency range. These are, a current-based approximation to the Magnetic Field Integral Equation called Physical Optics (PO) and the ray-based method Geometrical Theory of Diiraction (GTD), both combined with the Method of Moments (MM) such that MM is used on details that are small compared t...