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Empirical likelihood method has been applied to short-memory time series models by Monti (1997) through the Whittle's estimation method. Yau (2012) extended this idea to long-memory time series models. Asymptotic distributions of the…

统计方法学 · 统计学 2016-04-22 Ramadha D. Piyadi Gamage , Wei Ning , Arjun K. Gupta

A central challenge in the study of complex systems is the quantification of emergence -- understood as the ability of the system to exhibit collective behaviours that cannot be traced down to the individual components. While recent work…

We present a Dirichlet process mixture model over discrete incomplete rankings and study two Gibbs sampling inference techniques for estimating posterior clusterings. The first approach uses a slice sampling subcomponent for estimating…

机器学习 · 计算机科学 2012-03-19 Marina Meila , Harr Chen

Traditional compartmental models capture population-level dynamics but fail to characterize individual-level risk. The computational cost of exact likelihood evaluation for partially observed individual-based models, however, grows…

统计方法学 · 统计学 2026-01-27 Lorenzo Rimella , Nick Whiteley , Chris Jewell , Paul Fearnhead , Michael Whitehouse

Joint models of longitudinal and event-time data have been extensively studied and applied in many different fields. Estimation of joint models is challenging, most present procedures are computational expensive and have a strict…

统计方法学 · 统计学 2018-09-05 Yanqiao Zheng , Xiaobing Zhao , Xiaoqi Zhang

The Mann-Whitney-Wilcoxon rank sum test (MWWRST) is a widely used method for comparing two treatment groups in randomized control trials, particularly when dealing with highly skewed data. However, when applied to observational study data,…

Dealing with biased data samples is a common task across many statistical fields. In survey sampling, bias often occurs due to unrepresentative samples. In causal studies with observational data, the treated versus untreated group…

统计计算 · 统计学 2019-07-29 Xiaojing Wang , Jingang Miao , Yunting Sun

Valid statistical inference is challenging when the sample is subject to unknown selection bias. Data integration can be used to correct for selection bias when we have a parallel probability sample from the same population with some common…

统计方法学 · 统计学 2023-07-24 Zhonglei Wang , Shu Yang , Jae Kwang Kim

Many classification applications require accurate probability estimates in addition to good class separation but often classifiers are designed focusing only on the latter. Calibration is the process of improving probability estimates by…

机器学习 · 计算机科学 2020-01-31 Tuomo Alasalmi , Jaakko Suutala , Heli Koskimäki , Juha Röning

Under-coverage and nonresponse problems are jointly present in most socio-economic surveys. The purpose of this paper is to propose a completely design-based estimation strategy that accounts for both problems without resorting to models…

统计理论 · 数学 2019-05-10 Maria Michela Dickson , Giuseppe Espa , Lorenzo Fattorini

Surveys usually suffer from non-response, which decreases the effective sample size. Item non-response is typically handled by means of some form of random imputation if we wish to preserve the distribution of the imputed variable. This…

统计方法学 · 统计学 2017-08-04 Guillaume Chauvet , Wilfried Do Paco

Two important considerations in clinical research studies are proper evaluations of internal and external validity. While randomized clinical trials can overcome several threats to internal validity, they may be prone to poor external…

统计方法学 · 统计学 2022-07-19 Kevin P. Josey , Fan Yang , Debashis Ghosh , Sridharan Raghavan

To develop an approach to utilizing continuous statistical information within the Dempster- Shafer framework, we combine methods proposed by Strat and by Shafero We first derive continuous possibility and mass functions from…

人工智能 · 计算机科学 2013-04-12 Pascal Fua

Class probabilities predicted by most multiclass classifiers are uncalibrated, often tending towards over-confidence. With neural networks, calibration can be improved by temperature scaling, a method to learn a single corrective…

机器学习 · 计算机科学 2019-10-29 Meelis Kull , Miquel Perello-Nieto , Markus Kängsepp , Telmo Silva Filho , Hao Song , Peter Flach

The weighting of critical-point samples in the weighted randomized maximum likelihood method depend on the magnitude of the data mismatch at the critical points and on the Jacobian of the transformation from the prior density to the…

统计方法学 · 统计学 2023-01-16 Yuming Ba , Dean S. Oliver

When providing probabilistic forecasts for uncertain future events, it is common to strive for calibrated forecasts, that is, the predictive distribution should be compatible with the observed outcomes. Several notions of calibration are…

统计方法学 · 统计学 2015-05-21 Christof Strähl , Johanna F. Ziegel

In this paper we build a joint model which can accommodate for binary, ordinal and continuous responses, by assuming that the errors of the continuous variables and the errors underlying the ordinal and binary outcomes follow a multivariate…

统计方法学 · 统计学 2024-11-06 Laura Vana-Gür , Rainer Hirk

The U.S. Census Bureau provides an estimate of the true population as a supplement to the basic census numbers. This estimate is constructed from data in a post-censal survey. The overall procedure is referred to as dual system estimation.…

应用统计 · 统计学 2008-12-18 Lawrence Brown , Zhanyun Zhao

We develop new methods to integrate experimental and observational data in causal inference. While randomized controlled trials offer strong internal validity, they are often costly and therefore limited in sample size. Observational data,…

计量经济学 · 经济学 2025-11-04 Xuelin Yang , Licong Lin , Susan Athey , Michael I. Jordan , Guido W. Imbens

Capture-recapture data are often collected when abundance estimation is of interest. In the presence of unobserved individual heterogeneity, specified on a continuous scale for the capture probabilities, the likelihood is not generally…

统计方法学 · 统计学 2017-10-13 Ruth King , Brett T. McClintock , Darren Kidney , David Borchers