We propose a bootstrap-based method for searching through a space of models. The technique is well suited to complex, adaptively tted models: it provides a convenient method for nding better local minima, for resistant tting, and for optimization under constraints. Applications to regression, classiication and density estimation are described. The collection of models can also be used to form a...

Protein in cerebrospinal fluid (CSF) was measured by a modified biuret procedure and in two automated instruments, the Du Pont aca and the Kodak Ektachem. The latter's dry-slide reagent was also evaluated for precision, linearity, and effect of potential interferents. In vitro, ampicillin and vancomycin increase the apparent value for CSF protein as measured with the Ektachem slides. We exclude...

In this paper we propose a consistent and asymptotically normal estimator (CAN) for intensity parameters ρ1 & ρ2 for a queueing network with distribution-free inter-arrival and service times. Using this estimator and its estimated variance, a 100(1− α)% asymptotic confidence interval for intensities is constructed. Variance-stabilized bootstrap-t, Bayesian bootstrap, Percentile bootstrap are al...

Confidence intervals quantify the uncertainty in an average and offer a robust alternative to hypothesis testing. We measure the performance of standard and bootstrapped confidence intervals on a number of common IR measures using several TREC and NTCIR collections. The performance of an interval is its empirical coverage of the estimated statistic. We find that both standard and bootstrapped i...

an increase, even moderate, in global temperature is expected to result in a change in frequency of extreme weather events like drought, heavy rainfall and storms. the study of extreme events is difficult due to the fact that it is difficult to find long-term homogeneous data series. also the delimitation of extreme events is not univocal since a parameter value that would be defined as an extr...

low birth weight ( lbw, birth weight<2500g) is a significant health problem of children. many studies have made it apparent that there is a direct relationship between low birth weight and infant motality. one of the most important measurements to prevent children morbidity is growth monitoring and the present study was set up to compare the growth indexes of 2 year old children born with low w...

RESULTS: Patients undergoing implant-based reconstruction, subjected to the new protocol, demonstrated a decreased length of stay. Utilizing standardized surveys, improvements in pain control were demonstrated with a percentile ranking change from 88 to 99 percentile, pain management summary score improvement from 62 to 99 percentile, and improvement in pain control ranking from 27 to 99 percen...

RESULTS: Patients undergoing implant-based reconstruction, subjected to the new protocol, demonstrated a decreased length of stay. Utilizing standardized surveys, improvements in pain control were demonstrated with a percentile ranking change from 88 to 99 percentile, pain management summary score improvement from 62 to 99 percentile, and improvement in pain control ranking from 27 to 99 percen...

The Burr type XII has been studied for various applications of lifetime modelings. However, control charts related to the Burr type XII percentiles have not been seen in the literature. In this paper, three control charts for the Burr type XII percentiles are investigated. An extensive Monte Carlo simulation study is conducted to compare among the Shewhart-type chart, and parametric bootstrap c...

OBJECTIVE Our aim was to examine the degree to which changes in BMI percentile reflect changes in body fat and lean body mass during childhood and how age and gender affect these relationships. METHODS This analysis used serial data on 494 white boys and girls who were aged 8 to 18 years and participating in the Fels Longitudinal Study (total 2319 observations). Total body fat (TBF), total bo...