Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Colin M. Gallagher"'
Publikováno v:
Communications in Statistics - Theory and Methods. 48:1092-1107
A robust regression methodology is proposed via M-estimation. The approach adapts to the tail behavior and skewness of the distribution of the random error terms, providing for a reliable analysis under a broad class of distributions. This is accompl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab02473ac1cbc2b8048d31149e7a3b75
https://doi.org/10.1080/03610926.2018.1423698
https://doi.org/10.1080/03610926.2018.1423698
Publikováno v:
Statistics in Medicine. 36:2363-2377
As a cost-efficient data collection mechanism, the process of assaying pooled biospecimens is becoming increasingly common in epidemiological research; for example, pooling has been proposed for the purpose of evaluating the diagnostic efficacy of bi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d692d66c1f6b8a2e5aff0fef25245d5c
https://doi.org/10.1002/sim.7291
https://doi.org/10.1002/sim.7291
Autor:
Xueheng Shi, Colin M. Gallagher
Publikováno v:
Earth and Space Science, Vol 6, Iss 12, Pp 2232-2240 (2019)
Examples of cyclic (periodic) behavior in geophysical data abound. In many cases the primary period is known, such as in daily measurements of rain, temperature, and sea level. However, many time series of measurements contain cycles of unknown or va
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bda6b0553651d5d66aa35f2121377dff
Publikováno v:
Journal of the American Statistical Association. 111:670-683
This article develops a test for a single changepoint in a general setting that allows for correlated time series regression errors, a seasonal cycle, time-varying regression factors, and covariate information. Within, a changepoint statistic is cons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3355b0529f89724175709a4ba98da4e6
https://doi.org/10.1080/01621459.2015.1029130
https://doi.org/10.1080/01621459.2015.1029130
Publikováno v:
Communications in Statistics - Theory and Methods. 46:4642-4659
The adaptive least absolute shrinkage and selection operator (Lasso) and least absolute deviation (LAD)-Lasso are two attractive shrinkage methods for simultaneous variable selection and regression parameter estimation. While the adaptive Lasso is ef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5eb731485ea3f3dfa1872f23a0940a15
https://doi.org/10.1080/03610926.2015.1019138
https://doi.org/10.1080/03610926.2015.1019138
Publikováno v:
Biometrical Journal. 58:944-961
There is a need for epidemiological and medical researchers to identify new biomarkers (biological markers) that are useful in determining exposure levels and/or for the purposes of disease detection. Often this process is stunted by high testing cos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b239e8acf0fca5ff7710b81e70d60963
https://doi.org/10.1002/bimj.201500195
https://doi.org/10.1002/bimj.201500195
Autor:
Thomas J. Fisher, Colin M. Gallagher
Publikováno v:
Journal of Time Series Analysis. 36:67-83
Recent work in the literature has shown weighted variants of the classic portmanteau test for time series can be more powerful in many situations. In this article, we study the asymptotic distribution of weighted sums of the squared residual autocorr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5fa722881bc795c66ee151b1aa321e1
https://doi.org/10.1111/jtsa.12093
https://doi.org/10.1111/jtsa.12093
Publikováno v:
Applied Stochastic Models in Business and Industry. 31:264-281
This paper quantifies the asymptotic behavior of sample arc lengths in a multivariate time series. Arc length is a natural measure of the fluctuations in a data series and can be used to quantify volatility. The idea is that processes with larger sam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c1dcf09c2a18f14a713cc8449a3efe2
https://doi.org/10.1002/asmb.2030
https://doi.org/10.1002/asmb.2030
Publikováno v:
Journal of Statistical Computation and Simulation. 85:1264-1276
This article presents a new test for serial correlation in an observed stationary time series. Rather than using the traditional portmanteau tests based on the sample autocorrelation function, we propose a test based on the Cauchy estimator of correl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04e6ace81e8a3d8d594db744f187281e
https://doi.org/10.1080/00949655.2013.874424
https://doi.org/10.1080/00949655.2013.874424
Publikováno v:
Biometrika. 101(3):587-598
Group testing, through the use of pooling, has proven to be an efficient method of reducing the time and cost associated with screening for a binary characteristic of interest, such as infection status. A topic of key interest in the statistical lite
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ee563afd24aa9b3722432dd04b92c23
http://hdl.handle.net/10.1093/biomet/asu007
http://hdl.handle.net/10.1093/biomet/asu007