Results 11 to 20 of about 52,118 (271)

Accurate Estimates Without Calibration? [PDF]

open access: yes, 2008
Most process models calibrate their internal settings using local data. Collecting this data is expensive, tedious, and often an incomplete process. Is it possible to make accurate process decisions without historical data? Variability in model output arises from (a) uncertainty in model inputs and (b) uncertainty in the internal parameters that ...
Menzies, Tim   +7 more
openaire   +3 more sources

Classification of Event-Related Potentials with Regularized Spatiotemporal LCMV Beamforming

open access: yesApplied Sciences, 2022
The usability of EEG-based visual brain–computer interfaces (BCIs) based on event-related potentials (ERPs) benefits from reducing the calibration time before BCI operation. Linear decoding models, such as the spatiotemporal beamformer model, yield state-
Arne Van Den Kerchove   +3 more
doaj   +1 more source

Synthesizing the classical and inverse methods in linear calibration [PDF]

open access: yes, 2001
This paper considers the problem of linear calibration and presents two estimators arising from a synthesis of classical and inverse calibration approaches. Their performance properties are analyzed employing the small error asymptotic theory.
Shalabh, Toutenburg, Helge
core   +1 more source

Statistical Inference for the Heteroscedastic Partially Linear Varying-Coefficient Errors-in-Variables Model with Missing Censoring Indicators

open access: yesDiscrete Dynamics in Nature and Society, 2021
In this paper, we focus on heteroscedastic partially linear varying-coefficient errors-in-variables models under right-censored data with censoring indicators missing at random.
Yuye Zou, Chengxin Wu
doaj   +1 more source

Nonparametric Calibration for Age Estimation

open access: yesJournal of the Royal Statistical Society Series C: Applied Statistics, 2002
SUMMARY A method is proposed for the calibration of a continuous random variable when the dependent variables are a combination of continuous and categorical, and the model between the controlling variables and calibrated variable is empirically derived.
Lucy, David, Ackroyd, R. G., Pollard, M.
openaire   +1 more source

Calibrating parametric subject-specific risk estimation [PDF]

open access: yesBiometrika, 2010
For modern evidence-based medicine, decisions on disease prevention or management strategies are often guided by a risk index system. For each individual, the system uses his/her baseline information to estimate the risk of experiencing a future disease-related clinical event.
T. Cai   +4 more
openaire   +3 more sources

Calibration Estimation in Survey Sampling

open access: yesInternational Statistical Review, 2010
Summary Calibration estimation, where the sampling weights are adjusted to make certain estimators match known population totals, is commonly used in survey sampling. The generalized regression estimator is an example of a calibration estimator. Given the functional form of the calibration adjustment term, we establish the asymptotic equivalence ...
Kim, Jae Kwang, Park, Mingue
openaire   +4 more sources

Calibrating random forests for probability estimation [PDF]

open access: yesStatistics in Medicine, 2016
Probabilities can be consistently estimated using random forests. It is, however, unclear how random forests should be updated to make predictions for other centers or at different time points. In this work, we present two approaches for updating random forests for probability estimation.
Theresa Dankowski, Andreas Ziegler
openaire   +3 more sources

Calibrated Measures for Breast Density Estimation [PDF]

open access: yesAcademic Radiology, 2011
Breast density is a significant breast cancer risk factor measured from mammograms. Evidence suggests that the spatial variation in mammograms may also be associated with risk. We investigated the variation in calibrated mammograms as a breast cancer risk factor and explored its relationship with other measures of breast density using full field ...
John J, Heine, Ke, Cao, Dana E, Rollison
openaire   +2 more sources

A Comparison of Model-Assisted Estimators to Infer Land Cover/Use Class Area Using Satellite Imagery

open access: yesRemote Sensing, 2014
Remote sensing provides timely, economic, and objective data over a large area and has become the main data source for land cover/use area estimation. However, the classification results cannot be directly used to calculate the area of a given land cover/
Yizhan Li   +5 more
doaj   +1 more source

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