Index Catalog // ScholarsArchive@OSU

Modeling the Visibility Distribution for Respondent-driven Sampling with Application to Population Size Estimation

Creator:: McLaughlin, Katherine R., Johnston, Lisa G., Jakupi, Xhevat, Gexha-Bunjaku, Dafina, Deva, Edona, and Handcock, Mark S.
Abstract:: Respondent-driven sampling (RDS) is used throughout the world to estimate prevalence and population size for hidden populations. Although RDS is an effective method for enrolling people from key populations in studies, it relies on a partially unknown sampling mechanism, and thus each individual’s inclusion probability is unknown. Current estimators for...
Resource Type:: Article
Full Text:: respondent-driven sampling with application to population size estimation The Annals of Applied Statistics

Occupation and local times for skew Brownian motion with applications to dispersion across an interface

Creator:: Appuhamillage, T. A., Bokil, V. A., Thomann, E., Waymire, E., and Wood, B.
Abstract:: Advective skew dispersion is a natural Markov process defined ned by a di ffusion with drift across an interface of jump discontinuity in a piecewise constant diff usion coeffcient. In the absence of drift this process may be represented as a function of -skew Brownian motion for a uniquely determined...
Resource Type:: Article
Full Text:: with Applications to Dispersion Across an Interface Submitted to the Annals of Applied Probability

Estimating agreement coefficients from sample survey data

Creator:: Lin, Hung-Mo, Kim, Hae-Young, Williamson, John M., and Lesser, Virginia M.
Abstract:: We present a generalized estimating equations approach for estimating the concordance correlation coefficient and the kappa coefficient from sample survey data. The estimates and their accompanying standard error need to correctly account for the sampling design. Weighted measures of the concordance correlation coefficient and the kappa coefficient, along with the...
Resource Type:: Article
Full Text:: . Lesser, Department of Statistics and Survey Research Center, Oregon State University, 44 Kidder Hall

Subsampling Bootstrap of Count Features of Networks

Creator:: Bhattacharyya, Sharmodeep and Bickel, Peter J.
Abstract:: Analysis of stochastic models of networks is quite important in light of the huge influx of network data in social, information and bio sciences, but a proper statistical analysis of features of different stochastic models of networks is still underway.We propose bootstrap subsampling methods for finding empirical distribution of count...
Resource Type:: Article

Estimation and model selection in generalized additive partial linear models for correlated data with diverging number of covariates

Creator:: Wang, Li, Xue, Lan, Qu, Annie, and Liang, Hua
Abstract:: We propose generalized additive partial linear models for complex data which allow one to capture nonlinear patterns of some covariates, in the presence of linear components. The proposed method improves estimation efficiency and increases statistical power for correlated data through incorporating the correlation information. A unique feature of the proposed...
Resource Type:: Article

On normalized multiplicative cascades under strong disorder

Creator:: Dey, Partha S. and Waymire, Edward C.
Abstract:: The purpose of this note is to provide a coupling of weak limits in distribution of sequence of (normalized) multiplicative cascade measures under strong disorder in terms of the extremes of an associated branching random walk, assuming i.i.d positive, non-lattice bond weights and a second moment condition. The solution is...
Resource Type:: Article
Full Text:: . doi:10.1214/ECP.v20-3936 10.1214/ECP.v20-3936 Institute of Mathematical Statistics Version of

Advection–Dispersion Across Interfaces

Creator:: Ramirez, Jorge M., Thomann, Enrique A., and Waymire, Edward C.
Abstract:: This article concerns a systemic manifestation of small scale interfacial heterogeneities in large scale quantities of interest to a variety of diverse applications spanning the earth, biological and ecological sciences. Beginning with formulations in terms of partial differential equations governing the conservative, advective-dispersive transport of mass concentrations in divergence form,...
Resource Type:: Article
Full Text:: the Mathematics of Planet Earth and International Year of Statistics 2013 initiatives, we seek to

Variable Selection in High-dimensional Varying-coefficient Models with Global Optimality

Creator:: Xue, Lan and Qu, Annie
Abstract:: The varying-coefficient model is flexible and powerful for modeling the dynamic changes of regression coefficients. It is important to identify significant covariates associated with response variables, especially for high-dimensional settings where the number of covariates can be larger than the sample size. We consider model selection in the high-dimensional setting...
Resource Type:: Article
Full Text:: -coefficient Models with Global Optimality Lan Xue XUEL@STAT.OREGONSTATE.EDU Department of Statistics Oregon

bayesclust: An R Package for Testing and Searching for Significant Clusters

Creator:: Gopal, Vikneswaran, Fuentes, Claudio, and Casella, George
Abstract:: The detection and determination of clusters has been of special interest among researchers from different fields for a long time. In particular, assessing whether the clusters are significant is a question that has been asked by a number of experimenters. In Fuentes and Casella (2009), the authors put forth a...
Resource Type:: Article
Full Text:: Annals of Statistics, 29(4), 1165–1188. De Souto MCP, Costa IG, De Araujo DSA, Ludermir TB, Schliep A

GIScience

Creator:: Wright, Dawn J.
Abstract:: GIScience (geographic information science) is a scholarly discipline that addresses fundamental issues surrounding the use of a variety of digital technologies to handle geographic information; namely, information about places, activities, and phenomena on and near the surface of the Earth that are stored in maps or images. GIScience includes the...
Resource Type:: Part of Book
Full Text:: transportation network, or of a map or table or spatial statistic expressing environmental impacts resulting

ScholarsArchive@OSU

Modeling the Visibility Distribution for Respondent-driven Sampling with Application to Population Size Estimation

Occupation and local times for skew Brownian motion with applications to dispersion across an interface

Estimating agreement coefficients from sample survey data

Subsampling Bootstrap of Count Features of Networks

Estimation and model selection in generalized additive partial linear models for correlated data with diverging number of covariates

On normalized multiplicative cascades under strong disorder

Advection–Dispersion Across Interfaces

Variable Selection in High-dimensional Varying-coefficient Models with Global Optimality

bayesclust: An R Package for Testing and Searching for Significant Clusters

GIScience

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