Browsing by Author "Wang, Suojin"
Now showing items 21-40 of 40
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Miao, Jingang (2014-05-30)As a probabilistic statistical classification model, logistic regression (or logit regression) is widely used to model the outcome of a categorical dependent variable based on one or more predictor variables/features. We ...
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Gray, H. L.; Wang, Suojin (SIAM Journal on Numerical Analysis, 1992)
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Guan, Yong Tao (Texas A&M University, 2004-11-15)A common requirement for spatial analysis is the modeling of the second-order structure. While the assumption of isotropy is often made for this structure, it is not always appropriate. A conventional practice to check for ...
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Manuel, Christopher Matthew (2020-07-30)Exposure variables are often misclassified in observational studies. Any analysis that does not make proper adjustments for misclassification may result in biased estimates of model parameters and that may lead to distorted ...
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Lu, Wenhua; McKyer, E Lisako J; Lee, Chanam; Goodson, Patricia; Ory, Marcia G; Wang, Suojin (International Journal of Behavioral Nutrition and Physical Activity, 2014)
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Kravitz, Eli Samuel (2019-05-29)This work presents three analyses of the NIH-AARP Study of Diet and Health. Each analysis develops recommendations for nutritional intake or physical behaviors, or alters existing recommendations. New statistical methodology ...
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Larsen, Ross Allen Andrew (2011-10-21)Dependencies in multilevel models at the second level have never been thoroughly examined. For certain designs first-level subjects are independent over time, but the second level subjects may exhibit nonzero covariances ...
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Kim, Kyong Ryun (Texas A&M University, 2007-09-17)We proposed new variance estimators for the poststratified estimator of the population total in two-stage sampling. The linearization or Taylor series variance estimator and the jackknife linearization variance estimator ...
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Wang, Yong (2010-01-14)Today the web has become a major conduit for information. As the World Wide Web?s popularity continues to increase, information security on the web has become an increasing concern. Web information security is related to ...
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Chen, Jia; Li, Degui; Liang, Hua; Wang, Suojin (Annals of Statistics, 2015)
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Kim, Myung Suk (Texas A&M University, 2006-10-30)The shape of drift function in continuous time interest rate models has been investigated by many authors during the past decade. The main concerns have been whether the drift function is linear or nonlinear, but no ...
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El-Saleh, Ilham Kamel (2011-10-21)The goal of this study is to identify and examine teachers' concerns regarding their use of the new adopted mathematics textbook. In Texas, middle school mathematics teachers are often given a great deal of flexibility in ...
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Ju, Hyunsu (Texas A&M University, 2005-02-17)We propose methods for analyzing longitudinal data, obtained in clinical trials and other applications with repeated measures of responses taken over time. Common characteristics of longitudinal studies are correlated ...
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Zhang, Weimin (Texas A&M University, 2006-10-30)Multiphoton laser scanning microscopy (MPLSM) is an advanced fluorescence imaging technology which can produce a less noisy microscope image and minimize the damage in living tissue. The MPLSM image in this research is the ...
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Wang, Tianying (2018-07-18)We propose novel methods to tackle two problems: the misspecified model with measurement error and high-dimensional binary classification, both have a crucial impact on applications in public health. The first problem ...
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Kim, Hyun Sun (Texas A&M University, 2004-11-15)Sample size calculation methods for ordinal logistic regression are proposed to test statistical hypotheses. The author was motivated to do this work by the need for statistical analysis of the red imported fire ants ...
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Cai, Quan (2017-06-05)The partially linear single-index model is a semiparametric model proposed to the case when some predictors are linearly associated with the response variable, while some other predictors are nonlinearly associated with ...
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Sun, Zhuoer (2018-06-14)Missing data are very common in many areas such as sociology, biomedical sciences and clinical trials. Simply ignoring the incomplete cases may cause bias in estimation procedures. In this dissertation we investigate ...
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Chen, Zijuan (2020-06-09)Spatial random fields are widely used to model the space-time correlation structure of different objects in various fields, such as the soil moisture field in hydrological, agricultural and climatological studies. Since ...
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Xu, Ganggang (2012-02-14)Penalized methods are becoming more and more popular in statistical research. This dissertation research covers two major aspects of applications of penalized methods: variable selection and nonparametric function estimation. ...