Although having revealed to be a very powerful tool in acoustic modelling, discriminative training presents a major drawback: the lack of a formulation guaranteeing convergence in no matter which initial conditions, such as the Baum-Welch algorithm in maximum likelihood training. For this reason, a gradient descent search is usually used in this kind of problem. Unfortunately, standard gradient...

In this work, a cross-validation procedure is used to identify an appropriate Autoregressive Integrated Moving Average model and an appropriate state space model for a time series. A minimum size for the training set is specified. The procedure is based on one-step forecasts and uses different training sets, each containing one more observation than the previous one. All possible state space mo...

Accurate identification of brain tissue and cerebrospinal fluid (CSF) in a whole-head MRI is a critical first step in many neuroimaging studies. Automating this procedure can eliminate intra- and interrater variance and greatly increase throughput for a labor-intensive step. Many available procedures perform differently across anatomy and under different acquisition protocols. We developed the ...

Resuscitation of newborns is a critical procedure and requires refined skills. The contents of resuscitation guidelines and their implementation should be crucial in education of medical students. The traditional 2-stage (“see one, do one”) instruction is theory-loaded and does not provide sufficient hands-on training needed to give trainees the necessary practical experience or confidence in c...

these experiments examined the effects of pre-test intra dorsal hippocampus (intra-ca1) administration of gabaa receptor agonist and antagonist, muscimol and bicuculline respectively, on state-dependent learning induced by lithium. male nmri mice were trained in a one-trial step-down inhibitory avoidance task, and immediately after training they received ip injections of either saline (10 ml/kg...

background: cryopreservation and in vitro maturation (ivm) of oocyte is becoming an important technique in infertility treatment and fertility preservation. also it has been proposed to establish a genetic resource bank for endangered or commercially important animal species. objective: the aim of this study was to evaluate viability, maturation and fertilization rate of mouse immature oocytes ...