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Filtering by: Resource Type Dissertation Remove constraint Resource Type: Dissertation Subject Estimation theory Remove constraint Subject: Estimation theory

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Nonparametric Estimation of Additive Models with Shape Constraints

Creator:

Wang, Lu

Abstract:

Monotone additive models are useful in estimating productivity curves or analyzing disease risk where the predictors are known to have monotonic effects on the response. Existing literature mainly focuses on univariate monotone smoothing. Available methods for the estimation of monotone additive models are either difficult to interpret or have no...

Resource Type:

Dissertation
Estimation of the population total when the sample is taken from a list containing an unknown amount of duplication

Creator:

Tarng, Suey-huey

Resource Type:

Dissertation
Admissibility in linear models

Creator:

Azzam, Abdul-Mordy Hamed

Resource Type:

Dissertation
Large sample efficiencies of invariant quadratic unbiased estimators

Creator:

Poulsen, Neil Kenneth

Abstract:

This dissertation examines limiting efficiencies of quadratic unbiased estimators for the variance in the two variance component mixed model. The set of quadratic unbiased estimators considered includes the minimal complete class. A theorem is proved which shows that, in certain cases, a relatively simple expression converges to the same value...

Resource Type:

Dissertation
A new estimator of effective area surveyed in wildlife studies

Creator:

Wildman, Valerie Jean

Abstract:

A new estimator of effective area surveyed is proposed for use in estimating population sizes or densities. The estimator is based on the cumulative distribution function for the observed detection areas and can be used with the data arising from either a line transect or a variable circular plot survey....

Resource Type:

Dissertation
Estimation of totals for skewed populations in repeated agricultural surveys

Creator:

Viroonsri, Boonchai

Abstract:

The National Agricultural Statistical Service (NASS) conducts quarterly surveys for estimation of some primary commodities produced on farms and ranches. The commodities often have highly skewed distributions with a few farms producing very large amounts. NASS uses dual sampling frames comprised of the list frame for efficient stratification and the...

Resource Type:

Dissertation
Nonparametric density estimation by generalized expansion estimators-a cross-validation approach

Creator:

Rossi, Richard J., 1956-

Resource Type:

Dissertation
Robust estimation for the mean of skewed distributions

Creator:

Hussein, Osama Abdelaziz

Abstract:

Common estimators of the mean g(θ) = Jx dFθ(x) in skewed distribution models may be sensitive to contamination by a few large observations. It is then desirable to consider robust estimators g(θ) .The approach of Hampel (1968), who defines an estimator θ for the parameter vector θ to be optimal...

Resource Type:

Dissertation
Improving on the intra-block estimator via a nonlinear normal equation estimator

Creator:

El-Arishy, Samia Mosaad Aly

Resource Type:

Dissertation
Nonlinear unbiased estimators that dominate the intra-block estimator

Creator:

Saleh, Amina Ali Abd El-Fattah

Resource Type:

Dissertation

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Academic Affiliation

Statistics15
Statistics8
Economics2
Forest Engineering Resources and Management1
Forest Management1

Advisor

Seely, Justus F.4
Thomas, David R.3
Birkes, David S.2
Faulkenberry, G. David2
Ramsey, Fred L.2
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Commencement Year

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Current results range from 1969 to 2016

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Committee Member

Lesser, Virginia2
Bergland, Olvar1
Birkes, David1
Calvin, Lyle D.1
Gitelman, Alix1
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Creator

Azzam, Abdul Mordy Hamed1
Bedier, Mostafa Abdellatif1
Bin, Okmyung1
Ek, Alan R.1
El Arishy, Samia Mosaad Aly1
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Date

Date range begin – Date range end

Current results range from 1969 to 2016

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Decade

2010-20193
2000-20092
1990-19994
1980-19899
1960-19691

Degree Field

Statistics15
Economics2
Forest Management1
Forest Resources1

Degree Level

Doctoral19

Degree Name

Doctor of Philosophy (Ph.D.)19

Language

English [eng]19

License

All rights reserved3

Non-Academic Affiliation

Oregon State University. Graduate School19

Peer Reviewed

No18

Resource Type

Dissertation[remove]19

Rights Statement

Copyright Not Evaluated16
In Copyright3

Subject

Estimation theory[remove]19
Nonparametric statistics3
Sampling (Statistics)2
Agricultural surveys -- Statistical methods1
Agriculture -- Statistical methods1
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