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Articles 1 - 13 of 13
Full-Text Articles in Physical Sciences and Mathematics
An Adaptive Algorithm For `The Secretary Problem': Alternate Proof Of The Divergence Of A Maximizer Sequence, Andrew Benfante, Xiang Xu
An Adaptive Algorithm For `The Secretary Problem': Alternate Proof Of The Divergence Of A Maximizer Sequence, Andrew Benfante, Xiang Xu
OUR Journal: ODU Undergraduate Research Journal
This paper presents an alternate proof of the divergence of the unique maximizer sequence {๐ฅโ ๐} of a function sequence {๐น๐(๐ฅ)} that is derived from an adaptive algorithm based on the now classic optimal stopping problem, known by many names but here โthe secretary problemโ. The alternate proof uses a result established by Nguyen, Xu, and Zhao (n.d.) regarding the uniqueness of maximizer points of a generalized function sequence {๐๐,๐ ๐ } and relies on the strict monotonicity of ๐น๐(๐ฅ) as ๐ increases in order to show divergence of {๐ฅโ ๐}. Towards this, limits of the exponentiated Gaussian CDF are โฆ
Carbon Dioxide And Particulate Matter Concentration On Hampton Roads Air Quality, Gregory Hubbard
Carbon Dioxide And Particulate Matter Concentration On Hampton Roads Air Quality, Gregory Hubbard
OUR Journal: ODU Undergraduate Research Journal
Hampton Roads has been a maritime crossroads for the last 400 years. Industrialization has impacted the coastal region for the last 250 years. The expansion of the Port of Virginia in 2019 has created dense traffic in the region resulting in impacts to air quality. Two waste products that affect humans are particulate matter and carbon dioxide. Both respective emissions can cause adverse effects on humans, such as asthma, some lung cancers, and other respiratory distress. Scientists and health practitioners are studying the effects of particulate matter on human health. Hampton Roads, in particular, because of its unique location on โฆ
Responding To Some Challenges Posed By The Re-Identification Of Anonymized Personal Data, Herman T. Tavani, Frances S. Grodzinsky
Responding To Some Challenges Posed By The Re-Identification Of Anonymized Personal Data, Herman T. Tavani, Frances S. Grodzinsky
Computer Ethics - Philosophical Enquiry (CEPE) Proceedings
In this paper, we examine a cluster of ethical controversies generated by the re-identification of anonymized personal data in the context of big data analytics, with particular attention to the implications for personal privacy. Our paper is organized into two main parts. Part One examines some ethical problems involving re-identification of personally identifiable information (PII) in large data sets. Part Two begins with a brief description of Moor and Weckertโs Dynamic Ethics (DE) and Nissenbaumโs Contextual Integrity (CI) Frameworks. We then investigate whether these frameworks, used together, can provide us with a more robust scheme for analyzing privacy concerns that โฆ
Rates Of Relative Sea Level Rise Along The United States East Coast, Jesse N. Beckman, Joseph E. Garcia
Rates Of Relative Sea Level Rise Along The United States East Coast, Jesse N. Beckman, Joseph E. Garcia
Virginia Journal of Science
Recent studies have indicated that some coastal areas, including the East Coast of the United States, are experiencing higher rates of sea level rise than the global average. Rates of relative sea level rise are affected by changes in ocean dynamics, as well as by surface elevation fluctuations due to local land subsidence or uplift. In this study, we derived long-term trends in annual mean relative sea level using tide gauge data obtained from the Permanent Service for Mean Sea Level for stations along the United States East Coast. Stations were grouped by location into the Northeast, Mid-Atlantic, and Southeast โฆ
Exploring New Models For Seatbelt Use In Survey Data, Mark K. Ledbetter, Norou Diawara, Bryan E. Porter
Exploring New Models For Seatbelt Use In Survey Data, Mark K. Ledbetter, Norou Diawara, Bryan E. Porter
Virginia Journal of Science
Problem: Several approaches to analyze seatbelt use have been proposed in the literature. Two methods that has not been explored are the use of unweighted and weighted logistic regression model and the use of item response theory (IRT) or the Rasch model. Since accurate methods to predict seatbelt use behavior based upon observed data must include a built-in design method and model, and overcome computation challenges, weighted and IRT method deem to be other options for an observational survey of seat belt use in the state of Virginia.
Method: The observed data from 136 sites within the Commonwealth โฆ
Section Abstracts: Statistics
Virginia Journal of Science
Abstracts of the Statistics Section for the 94th Annual Virginia Academy of Science Meeting, May 18-20, 2016, at University of Mary Washington, Fredericksburg, VA.
Section Abstracts: Statistics
Virginia Journal of Science
Abstracts of the Statistics Section for the 93rd Annual Meeting of the Virginia Academy of Science, May 21-23, 2015, James Madison University, Richmond, Virginia
Section Abstracts: Statistics
Virginia Journal of Science
Abstracts of the Statistics Section for the 92nd Annual Meeting of the Virginia Academy of Science, May 13-15, 2014, Virginia Commonwealth University, Richmond, Virginia
Section Abstracts: Statistics
Virginia Journal of Science
Abstracts of the Statistics Section for the 91st Annual Virginia Journal of Science Meeting, May 2013
Section Abstracts: Statistics
Virginia Journal of Science
Abstracts of the Statistics Section for the 89th Annual Meeting of the Virginia Academy of Science, May 25-27, 2011, University of Richmond, Richmond VA.
Section Abstracts: Statistics
Virginia Journal of Science
Abstracts of the Statistics Section for the 88th Annual Meeting of the Virginia Academy of Science, May 20-21, 2010, James Madison University, Harrisonburg, Virginia.
Section Abstracts: Statistics
Virginia Journal of Science
Abstracts of the Statistics Section for the 87th Annual Meeting of the Virginia Academy of Science, May 27-29, 2009, Virginia Commonwealth University, Richmond, VA.
A Comparison Of Different Methods For Predicting Cancer Mortality Counts At The State Level, Corinne Wilson
A Comparison Of Different Methods For Predicting Cancer Mortality Counts At The State Level, Corinne Wilson
Virginia Journal of Science
Cancer is a major health issue in the United States. Reliable estimates of yearly cancer mortality counts are essential for resourcing and planning. The American Cancer Society has used several methods of forecasting to estimate the future cancer burden and researchers are continually working to develop new methods with improved performance. There have been studies comparing different models for predicting the US cancer mortality counts. This study explores and compares several different models for cancer mortality count predictions at the state level, principally for the state of Virginia. Results of the comparisons appear to show the final improved model to โฆ