Contact
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Email
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Primary Office
- S352 Pappajohn Business Building (PBB)
- (319) 335-3814
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Department
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Fax
Websites
Positions
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Professor of Business Analytics
Tippie College of Business
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Professor of Statistics and Actuarial Science
College of Liberal Arts and Sciences
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Associate Investigator
Center for the Prevention and Treatment of Visual Loss, Iowa City VA Health Care System
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Affiliate Faculty, Department of Statistics and Actuarial Science
College of Liberal Arts and Sciences, The University of Iowa
Education
- PhD in Statistics, University of Wisconsin, 1975
- MS in Sociology and Statistics, University of Vienna, 1974
- MS in Statistics, University of Wisconsin, 1972
Areas of Interest
- Data mining
- Forecasting
- International Business Education
- Probability and statistics for engineering and physical sciences
- Applied time series analysis
- Statistical applications in business
- Statistical methods for quality and productivity improvement (Six Sigma)
- Statistics
- Statistics in Medicine, especially Anesthesia, Surgery, and Ophthalmology
Selected Awards & Honors
- Iowa Career Developmental Award, University of Iowa, 2012
- Elected Fellow, American Society for Quality, 2011
- Iowa Career Developmental Award, 2006
- Elected Fellow, American Statistical Association, 1991
- Elected Fellow, International Statistical Institute, 1991
Selected Publications
- Estimation Bias in the First-Order Autoregressive Model and its Impact on Predictions and Prediction Intervals. Communications in Statistics: Simulation and Computation 38 771-787. (2009).
- An Experiment to Increase Magazine Sales in a Supermarket. Interfaces 39 145-158. , & (2009).
- Automatic Updating of Times Remaining in Surgical Cases Using Bayesian Analysis of Historical Case Duration Data. Anesthesia & Analgesia 108 929-940. , , , & (2009).
- Risk Factors for Serious Injury in Finnish Agriculture. American Journal of Industrial Medicine 52 419-428. , , , & (2009).
- Statistics for Engineers and Scientists. Prentice Hall. & (2009).
- A Statistical Analysis of the Lake Levels at Lake Neusiedl. Austrian Journal of Statistics 37 147-160. (2008).
- Comment on the paper “An Overview of the Shainin SystemTM for Quality Improvement,” by Stefan H. Steiner, R. Jock MacKay, and John S. Ramberg. Quality Engineering 20 38-39. (2008).
- Pre-control. Encyclopedia of Statistics in Quality and Reliability. (2008).
- Sensitivity of Super-Efficient Data Envelopment Analysis Results to Individual Decision-Making Units: Example of Surgical Workload by Specialty. Health Care Management Science 11 307-318. , , & (2008).
- Smoothing Time Series with Local Polynomial Regression on Time. Communications in Statistics - Theory and Methods 37 (6) 959-971. (2008).
Selected Presentations
- How George Box has Shaped my Work as Data Scientist: Treatment of Visual Loss and the Effects of Traumatic Brain Injury. Invited Lecture presented at George Box: 100th Birthday Celebration of the Accidental Statistician, Madison, Wisconsin. (2019, October)
- Data Science Projects: Treatment of Visual Loss and Effects of Traumatic Brain Injury. Invited Lecture Valparaiso, Chile. (2019, June)
- Data Science Projects Treatment of Visual Loss and Effects of Traumatic Brain Injury. Invited Lecture (2018, March)
- Data mining and business analytics with an Application to Forecasting State Unemployment Rates. Lecture presented at National Research University-Higher School of Economics, Moscow, Russia. (2015, June)
- Data mining and business analytics. Lecture presented at University of Northern Iowa, Cedar Falls. (2015, April)
- Data mining and business analytics: Statistical models. Lecture presented at Peking University, Beijing, China. (2015, March)
- George Box’s contributions to time series analysis and forecasting. Lecture presented at Department of Statistics, University of Linz, Linz, Austria. (2014, May)
- Data mining and business analytics with big and small data – it is not always size that matters. Keynote/Plenary Address presented at ASA Milwaukee Chapter, Milwaukee, Wisconsin. (2014, April)
- Combination of Forecasts and Bayesian Prediction Bounds for Operating Room Durations, Even for Procedures with Few or No Historical Data. Oral presented at Frontiers of Statistics and Forecasting, Taipei, Taiwan. (2013, December)
- Comments on Statistical Engineering. Oral presented at Stu Hunter Research Conference, Amsterdam, Netherlands. (2013, March)
Selected Grants & Contracts
- Garvin, M (Principal Investigator), Kardon, R (Principal Investigator), Wang, J K (Co-Investigator), Ledolter, J (Co-Investigator), Kwon, Y (Co-Investigator), Wall, M (Co-Investigator) Grant Research, Applied. Early Detection of Progressive Visual Loss in Glaucoma Using Deep Learning. Sponsored by VA Rehab R&D Merit Grant. Funded. January 1, 2022 - January 1, 2025.
- Grant Research/Creative Work (Applied or Basic). Grumbach/Kardon: NIH R01 "Laser speckle flowgraphy as early indicator of microvasculopathy in radiation-induced vision loss". Funded. July 1, 2020 - June 30, 2023.
- Grant Research/Creative Work (Applied or Basic). Sowers: VA Merit grant: "Investigation of cerebello-thalamic circuits for the treatment of headache ". Funded. July 1, 2020.
- Fellowship Research, Basic. CDA Fellowship. Sponsored by University of Iowa. Funded. July 1, 2019 - June 1, 2020.
- Grant Clinical Trial. Kardon "Early Visual Biomarkers of Relapse and Rehabilitation in MS". Funded. July 1, 2019 - June 30, 2023.
- Grant Vision Center 129 "Center for the Prevention and Treatment of Visual Loss". Funded. July 1, 2019 - June 30, 2024.
- Grant Research/Creative Work (Applied or Basic). Kuehn 137 "Stem Cell Therapy for Glaucoma". Funded. July 1, 2018 - June 30, 2022.
- Ledolter, J Grant Center for the Prevention and Treatment of Visual Loss. Sponsored by VA. Funded. January 1, 2018 - December 1, 2018.
- Ledolter, J Grant Research, Basic. Center for the Prevention and Treatment of Visual Loss. Sponsored by VA. Funded. August 1, 2017 - July 1, 2018.
- Ledolter, J Grant Center for the Prevention and Treatment of Visual Loss. Sponsored by VA. Funded. January 1, 2017 - December 1, 2017.
Professional Service
- NBER/NSF Seminar on Time Series Analysis, Conference Organizer for Annual Conference in Vienna, Austria, January 2015 - September 2015.
Editorial & Review Activities
- Austrian Journal of Statistics, Associate Editor.
- Journal of Forecasting, Associate Editor.