Results 21 to 30 of about 87,758 (191)
Pure gravity and conical defects
We revisit the spectrum of pure quantum gravity in AdS3. The computation of the torus partition function will — if computed using a gravitational path integral that includes only smooth saddle points — lead to a density of states which is not physically ...
Nathan Benjamin +2 more
doaj +1 more source
Potato (Solanum tuberosum L.), a species of the family Solanaceae, is the fourth most important food crop worldwide. Solanum tuberosum L. cv. Shepody is a long, smooth, white-skinned potato cultivar with medium green leaves.
Shanshan Chen +11 more
doaj +1 more source
Autoregressive Wild Bootstrap Inference for Nonparametric Trends [PDF]
In this paper we propose an autoregressive wild bootstrap method to construct confidence bands around a smooth deterministic trend. The bootstrap method is easy to implement and does not require any adjustments in the presence of missing data, which ...
Friedrich, Marina +2 more
core +3 more sources
Using bootstrap method, we have constructed nonparametric prediction intervals for Conditional Value-at-Risk for returns that admit a heteroscedastic location-scale model where the location and scale functions are smooth, and the function of the error ...
Emmanuel Torsen, Lema Logamou Seknewna
doaj +1 more source
A priori estimates of global solutions of superlinear parabolic systems
We consider the parabolic system $ u_{t}-\Delta u = u^{r}v^{p}$, $v_{t}-\Delta v = u^{q}v^{s}$ in $\Omega\times(0,\infty)$, complemented by the homogeneous Dirichlet boundary conditions and the initial conditions $(u,v)(\cdot,0) = (u_{0},v_{0})$ in ...
Július Pačuta
doaj +1 more source
Sample size calculation to externally validate scoring systems based on logistic regression models. [PDF]
A sample size containing at least 100 events and 100 non-events has been suggested to validate a predictive model, regardless of the model being validated and that certain factors can influence calibration of the predictive model (discrimination ...
Antonio Palazón-Bru +4 more
doaj +1 more source
ObjectiveThis study aims to investigate the factors affecting the ectopic pregnancy (EP) rate in the frozen-thawed embryo transfer (FET) cycle.MethodsThis study retrospectively analyzed 5606 FET cycles, including 5496 cycles resulting in intrauterine ...
Qiuyuan Li +10 more
doaj +1 more source
The smoothed median and the bootstrap
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Brown, B M, Hall, Peter, Young, G A
openaire +4 more sources
Parrot: A Progressive Analysis System on Large Text Collections
The size of textual data continues to grow along with the need for timely and cost-effective analysis, while the growth of computation power cannot keep up with the growth of data.
Yazhong Zhang +5 more
doaj +1 more source
Subsampling inference in cube root asymptotics with an application to Manski's maximum score estimator [PDF]
Kim and Pollard (Annals of Statistics, 18 (1990) 191?219) showed that a general class of M-estimators converge at rate n1/3 rather than at the standard rate n1/2. Many times, this situation arises when the objective function is non-smooth.
Delgado, Miguel A. +2 more
core +8 more sources

