Results 41 to 50 of about 4,270,888 (278)

Cognitive Diagnosis Modeling Incorporating Item-Level Missing Data Mechanism

Frontiers in Psychology, 2020
The aim of cognitive diagnosis is to classify respondents' mastery status of latent attributes from their responses on multiple items. Since respondents may answer some but not all items, item-level missing data often occur.
Na Shan, Na Shan, Xiaofei Wang, Xiaofei Wang   +3 more
doaj   +1 more source

Identifying research priorities for effective retention strategies in clinical trials

Trials, 2017
Background The failure to retain patients or collect primary-outcome data is a common challenge for trials and reduces the statistical power and potentially introduces bias into the analysis. Identifying strategies to minimise missing data was the second
Anna Kearney, Anne Daykin, Alison R. G. Shaw, Athene J. Lane, Jane M. Blazeby, Mike Clarke, Paula Williamson, Carrol Gamble   +7 more
doaj   +1 more source

Recursive kernel density estimators under missing data

, 2016
In this paper we propose an automatic bandwidth selection of the recursive kernel density estimators with missing data in the context of global and local density estimation.
Slaoui, Yousri
core   +3 more sources

Missing observation analysis for matrix-variate time series data [PDF]

, 2008
Bayesian inference is developed for matrix-variate dynamic linear models (MV-DLMs), in order to allow missing observation analysis, of any sub-vector or sub-matrix of the observation time series matrix.
Triantafyllopoulos, K.
core   +3 more sources

Missing Categorical Data Imputation and Individual Observation Level Imputation

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2014
Traditional missing data techniques of imputation schemes focus on prediction of the missing value based on other observed values. In the case of continuous missing data the imputation of missing values often focuses on regression models.
Pavel Zimmermann, Petr Mazouch, Klára Hulíková Tesárková   +2 more
doaj   +1 more source

Data-Driven Method for Missing Harmonic Data Completion

IEEE Access, 2021
In large-scale applications, missing harmonic data during transmission is inevitable. This paper presents a novel approach for the completion of missing harmonic data based on a data-driven approach.
Rui Xu, Xiaoyang Ma, Runze Zhou, Jinshuai Zhao, Ying Wang   +4 more
doaj   +1 more source

A Tensor-Based Method for Completion of Missing Electromyography Data

IEEE Access, 2019
This paper discusses the recovery of missing data in surface electromyography (sEMG) signals that arise during the acquisition process. Missing values in the EMG signals occur due to either the disconnection of electrodes, artifacts and muscle fatigue or
Muhammad Akmal, Syed Zubair, Mads Jochumsen, Ernest Nlandu Kamavuako, Imran Khan Niazi   +4 more
doaj   +1 more source

Missing.... presumed at random: cost-analysis of incomplete data [PDF]

, 2002
When collecting patient-level resource use data for statistical analysis, for some patients and in some categories of resource use, the required count will not be observed. Although this problem must arise in most reported economic evaluations containing
Bang, Box, Brick, Buck, Carides, Coast, Diggle, Duan, Etzioni, Fenn, Gelfand, Greene, Hanson, Horton, Johnston, Keoghane, Leigh, Lin, Little, Little, Polsky, Roberts, Rubin, Rubin, Rubin, Schafer, Schafer, Tanner, van Buuren, Willan, WinBUGS, Wu   +31 more
core   +2 more sources

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Why and When Are Evidence‐Based Interventions Adopted in Paediatric Supportive Care? A Qualitative Exploration of the Determinants of Photobiomodulation Implementation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie, Kara A. Gray‐Burrows, Peter F. Day, Bob Phillips, Carl A. Thompson   +4 more
wiley   +1 more source