Results 51 to 60 of about 505,620 (175)

Nonparametric Assessment of the Calibration of Individualized Treatment Effects

Statistics in Medicine, Volume 45, Issue 20-22, September 2026.
ABSTRACT An important aspect of the performance of algorithms that predict individualized treatment effects (ITEs) is moderate calibration, that is, the average treatment effect among individuals with predicted treatment effect of z being equal to z. The assessment of moderate calibration is a challenging task on two fronts: counterfactual responses ...
Mohsen Sadatsafavi, Jeroen Hoogland, Thomas P. A. Debray, John Petkau   +3 more
wiley   +1 more source

Interpolating sequences and the Toeplitz--Corona theorem on the symmetrized bidisk

Journal of Operator Theory, 2022
We characterize the interpolating sequences and prove a Toeplitz--Corona theorem in the setting of bounded holomorphic functions on the symmetrized bidisk.
Bhattacharyya, Tirthankar, Sau, Haripada
openaire   +2 more sources

Delayed Admission to the Intensive Care Unit Is Associated With Increased Mortality Risk in Critically Ill Patients: A Prospective Cohort Study

Journal of Advanced Nursing, Volume 82, Issue 9, Page 8646-8657, September 2026.
ABSTRACT Aim To examine the impact of delays in intensive care unit (ICU) admission on patient outcomes, specifically clinical deterioration and mortality among patients transferred from the emergency department (ED) or general wards following acute deterioration in an Australian public hospital.
Shivaprasad Anagi, Diane Chamberlain, Nigel Barr, Ahmed Mehdi, William Pinzon Perez, Raju Pusapati, Daryl Taypin Shaw, Christine Jennings, Frances Lin   +8 more
wiley   +1 more source

The corona theorem for matrices

Mathematische Zeitschrift, 1989
Let F be an \(r\times k\)-matrix of bounded holomorphic functions in the unit disc such that the nonzero eigenvalues of \(FF^ *\) are bounded from below by some \(\delta >0\). We prove that there is a bounded holomorphic solution to \(Fu=g\) if g is an r-column of bounded holomorphic functions and the equation is solvable pointwise. If \(r=1\), this is
openaire   +1 more source

Genetic Prediction and Adverse Selection

Econometrica, Volume 94, Issue 5, Page 1817-1848, September 2026.
Recent advances have substantially improved our ability to predict disease risk with genetic data. In response, many countries have banned insurers from using genetic data, despite concerns about adverse selection. This paper measures adverse selection in a market where insurers can underwrite only on nongenetic information while consumers also have ...
Eduardo Azevedo, Jonathan P. Beauchamp, Richard Karlsson Linnér   +2 more
wiley   +1 more source

Overlap‐Weight Estimators With Machine‐Learned Plug‐Ins and Overlap‐Weight Targeted Maximum Likelihood Estimator

Biometrical Journal, Volume 68, Issue 4, August 2026.
ABSTRACT In estimating the average treatment effect (ATE), the plug‐in estimator with the efficient influence function and the targeted maximum likelihood estimator (TMLE) are semiparametrically efficient. However, the estimators suffer from the fact that too small/large a propensity score (PS) in the denominators can make the estimators unstable. This
Myoung‐jae Lee, Sanghyeok Lee
wiley   +1 more source

MHD turbulence and heating of the open field-line solar corona [PDF]

, 2003
This paper discusses the possibility that heating of the solar corona in open field-line regions emanating from coronal holes is due to a nonlinear cascade, driven by low-frequency or quasi-static magnetohydrodynamic fluctuations.
Dmitruk, Pablo, Milano, L., Matthaeus, William H., Dmitruk, P., Milano, L. J., Matthaeus, W. H., Mullan, D. J., Oughton, Sean, S. Oughton, P. Dmitruk, W. H. Matthaeus, L. Milano, Oughton, S., D. J. Mullan   +13 more
core   +2 more sources

Optimization Algorithm for Determining the Source Surface Radius Based on Parker Solar Probe In Situ Measurements From Encounters 1 to 19

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract The Potential Field Source Surface (PFSS) extrapolation is a method for estimating the large scale coronal magnetic field from photospheric magnetograms. The source surface serves as the outer boundary of its solution domain, and is typically a spherical surface.
Shiouhe Wang, Fang Shen, Yi Yang, Xueshang Feng, Jiansen He   +4 more
wiley   +1 more source

Homogeneous subsets of a Lipschitz graph and the Corona Theorem [PDF]

Publicacions Matemàtiques, 2011
5 ...
openaire   +6 more sources

Inflation Control in a CVAR Model With an Application to the Burns/Miller Period in the USA

Oxford Bulletin of Economics and Statistics, Volume 88, Issue 4, Page 803-813, August 2026.
ABSTRACT The paper addresses the problem of “how to make a nonstationary inflation rate stationary by controlling the policy instrument”. It shows that a necessary condition is a significant non‐zero element in the long‐run impact matrix. An application to US data covering the Burns/Miller periods finds a significant, but positive, long‐run impact on ...
Søren Johansen, Katarina Juselius
wiley   +1 more source