| 2001 – |
Freelance Statistician and data miner: 100 statistical analyses (data mining projects, dissertations, theses, habilitations and research papers) from the field of Economics, Psychology, Sociology, Medicine and Veterinary Medicine. |
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| 2001 – 2006 |
University of Economics in Bratislava, Faculty of Business Administration in Kosice: Assistant Professor – Business Risk and Economic Analysis. |
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| 2005 – 2006 |
St. Elizabeth University of Health and Social Work, Bratislava, Department of Social Sciences and Health bl. P. P. Gojdic, Presov: Associate Professor – Statistics, Information Technology. |
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| 2005 – 2007 |
Banking Institute College Prague: Lecturer – Financial Mathematics, Business Economics. |
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| 2006 – 2007 |
Post Bank, Bratislava: Data miner – Development of predictive statistical models for Risk and Marketing departments. |