Results 51 to 60 of about 34,245 (290)

Minimax Multiple Shrinkage Estimation

The Annals of Statistics, 1986
A Stein estimator of the form \[ d_ v(Y)=Y-[(p-2)/\| Y-v\|^ 2](Y-v) \] shrinks Y towards a target \(v\in R^ p\). The paper proposes multiple shrinkage estimators (msest's) for cases where prior information suggests several different choices for the target.
openaire   +3 more sources

Clinical Characteristics and Prognostic Risk Factors for Pediatric B‐Cell Lymphoblastic Lymphoma: A Multicenter Retrospective Cohort Study for China Net Childhood Lymphoma

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background B‐cell lymphoblastic lymphoma (B‐LBL) represents a rare variety of non‐Hodgkin lymphoma, with limited research on its biology, progression, and management. Methods A retrospective analysis was performed on the clinical characteristics of 256 patients aged ≤18 years who received treatment under the China Net Childhood Lymphoma (CNCL)‐
Zhijuan Liu, Jian Wang, Ling Jin, Yanlong Duan, Fu Li, Yueping Jia, Leping Zhang, Xiaojun Yuan, Wei Liu, Ying Liu, Ansheng Liu, Mincui Zheng, Yunpeng Dai, Lian Jiang, Lirong Sun, Xiaowen Zhai, Rong Liu, Chunju Zhou, Zifen Gao, Yonghong Zhang, Xiaomei Yang   +20 more
wiley   +1 more source

Interval shrinkage estimation of two-parameter exponential distribution with random censored data [PDF]

Journal of Mahani Mathematical Research
The use of the two-parameter exponential distribution model in fitting survival and reliability analysis data in the presence of censored random data has recently attracted the attention of a large number of authors.
Ali Soori, Parviz Nasiri, Mehdi Jabbari Nooghabi, Farshin Hormozinejad, Mohammadreza Ghalani   +4 more
doaj   +1 more source

Semi-Parametric Estimation Using Bernstein Polynomial and a Finite Gaussian Mixture Model

Entropy, 2022
The central focus of this paper is upon the alleviation of the boundary problem when the probability density function has a bounded support. Mixtures of beta densities have led to different methods of density estimation for data assumed to have compact ...
Salima Helali, Afif Masmoudi, Yousri Slaoui   +2 more
doaj   +1 more source

Blockwise SURE Shrinkage for Non-Local Means

, 2013
In this letter, we investigate the shrinkage problem for the non-local means (NLM) image denoising. In particular, we derive the closed-form of the optimal blockwise shrinkage for NLM that minimizes the Stein's unbiased risk estimator (SURE).
Natarajan, Premkumar, Noonan, Joseph P., Tracey, Brian, Wu, Yue   +3 more
core   +1 more source

Glycosylated LGALS3BP is highly secreted by bladder cancer cells and represents a novel urinary disease biomarker

Molecular Oncology, EarlyView.
Urinary LGALS3BP is elevated in bladder cancer patients compared to healthy controls as detected by the 1959 antibody–based ELISA. The antibody shows enhanced reactivity to the high‐mannose glycosylated variant secreted by cancer cells treated with kifunensine (KIF).
Asia Pece, Giulio Lovato, Ilaria Cela, Arianna Mercatelli, Benedetta Ferro, Jussi Nikkola, Sara Pagotto, Tommaso Grottola, Vincenzo De Laurenzi, Rossella Cicchetti, Antonio Marchetti, Luigi Schips, Rossano Lattanzio, Stefano Iacobelli, Emily Capone, Peter Black, Mads Daugaard, Michele Marchioni, Gianluca Sala   +18 more
wiley   +1 more source

Regularized Tyler's Scatter Estimator: Existence, Uniqueness, and Algorithms

, 2014
This paper considers the regularized Tyler's scatter estimator for elliptical distributions, which has received considerable attention recently.
Babu, Prabhu, Palomar, Daniel P., Sun, Ying   +2 more
core   +1 more source

Carbon portfolio management [PDF]

, 2018
The aim of the European Union's Emissions Trading Scheme (EU ETS) is that by 2020, emissions from sectors covered by the EU ETS will be 21% lower than in 2005.
Afonin, Amin, Bredin, Bredin, Bredin, Börger, Chen, Chevallier, Chopra, DeMiguel, DeMiguel, DeMiguel, Erb, Fabozzi, Huberman, Ibikunle, Jensen, Jobson, Jorion, Jorion, Kan, Labatt, Ledoit, Ledoit, Ledoit, Ledoit, Lucia, Mansanet-Bataller, Markowitz, Memmel, Merton, Michaud, Michaud, Point Carbon, Reboredo, Reboredo   +35 more
core   +1 more source

Detection of circulating tumor DNA in colorectal cancer patients using a methylation‐specific droplet digital PCR multiplex

Molecular Oncology, EarlyView.
We developed a cost‐effective methylation‐specific droplet digital PCR multiplex assay containing tissue‐conserved and tumor‐specific methylation markers. The assay can detect circulating tumor DNA with high accuracy in patients with localized and metastatic colorectal cancer.
Luisa Matos do Canto, Louise Raunkilde, Jan Lindebjerg, Mads Malik Aagaard, Christina Therkildsen, Jakob Kleif, Lars Henrik Jensen, Torben Frøstrup Hansen, Rikke Fredslund Andersen   +8 more
wiley   +1 more source

Adaptive Monotone Shrinkage for Regression [PDF]

, 2015
We develop an adaptive monotone shrinkage estimator for regression models with the following characteristics: i) dense coefficients with small but important effects; ii) a priori ordering that indicates the probable predictive importance of the features.
Foster, Dean, Ma, Zhuang, Stine, Robert
core