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Seminar Series: Spring 2013
The seminar series will usually take place on Fridays in a Business Building room, but the exact time and location could be different due to a variety of factors including room availability in the Business Building. For actual direction to the Business Building, please see campus map. For additional information contact Dr. Kefeng Xu, (210) 458-5388.

Friday, February 22, 2013, from 10:30 a.m.-12:00 p.m., Business Building BB 3.02.16.

  • Presenter: Angel Díaz Matalobos, PhD, Professor of Operations and Director of PhD Program, Instituto de Empresa Business School, María de Molina 12 bajo, Madrid 28006, Spain

  • Presentation Title: When separation hurts: offshoring revisited

  • Abstract: Off-shoring is the movement of manufacturing and service jobs from developed countries to developing countries with lower labor costs. In Spain, for example, more than15,000 jobs in the textile sector were lost and more than 400 companies closed in 2004 alone, due to explosive growth in cheap imports from China. However the buzz word these days is re-shoring, the opposite situation brought by rising costs, specially labor costs in China and global transportation costs, and the rediscovery of the advantages of proximity to suppliers and subcontractors. This presentation examines these trends, analyzing the factors involved in off-shoring/re-shoring decisions. In-depth cases of manufacturing and service re-shoring in Spain are discussed, a country-case of special interest due to high levels of unemployment (currently over 26%) that could be positively impacted by this trend.


Friday, April 12, 2013, 2:30-3:30pm, Business Building 3.03.02. Joint seminar with ASA-San Antonio Chapter. [Due to inclement weather on April 12, the speaker scheduled to participate in the MSS Research Seminar had to cancel because he was unable to travel]

  • Presenter: Prof N. Balakrishnan, Department of Mathematics and Statistics McMaster University, Hamilton, Ontario, Canada L8S 4K1

  • Presentation Title: : A Random-Sum Wilcoxon Statistic and Its Application to Analysis of ROC and LROC Data

  • Abstract: The Wilcoxon-Mann-Whitney statistic is commonly used for a distribution-free comparison of two groups. One requirement for its use is that the sample sizes of the two groups are fixed. This is violated in some of the applications such as medical imaging studies and diagnostic marker studies; in the former, the violation occurs since the number of correctly localized abnormal images is random, while in the latter the violation is due to some subjects not having observable measurements. For this reason, we propose here a random-sum Wilcoxon statistic for comparing two groups in the presence of ties, and derive its variance as well as its asymptotic distribution for large sample sizes. The proposed statistic includes the regular Wilcoxon statistic. Finally, we apply the proposed statistic for summarizing location response operating characteristic data from a liver computed tomography study, and also for summarizing diagnostic accuracy of biomarker data.

Friday, April 26th, 2013, 2-3pm, Business Building (BB 3.01.06) [This seminar will be moved to Fall 2013 semester due to a schedule conflict.]

  • Presenter: Mike Daniels, Professor, Section of Integrative Biology, Division of Statistics & Scientific Computation, The University of Texas at Austin

  • Presentation Title: TBA

  • Abstract: TBA


Friday, May 17, 2013, 2:00-3:00pm, Business Building 4.02.10 (Executive Conference Room). Joint seminar with ASA-San Antonio Chapter.

  • Presenter: Sarjinder Singh, Associate Professor Department of Mathematics Texas A&M University-Kingsville

  • Presentation Title: : Tracking the Prevalence of Addictions using Randomized Response Sampling: Why Amy fears that her Danny could be a Druggy

  • Abstract: Warner (1965) proposed an interviewing technique, called randomized response, to protect an interviewee's privacy and to reduce a major source of bias (evasive answers or refusing to respond) in estimating the prevalence of sensitive characteristics in surveys of human populations. The objective of this talk will be to discuss new developments in the field of randomized response sampling which could be used for tracking addictions of people for better life in a society. The talk will be supported by a fictitious story of Amy's fear that her Danny could be a druggy. A few applications, based on hands on experience, of the newly proposed techniques will be discussed.


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