PRINCIPAL PRESENTATIONS

                              BEFORE PROFESSIONAL SOCIETIES
 

Laval University, Oct. 04, 2007, Quebec, Canada, Four Local Measures of Dependence between two random Variavles (Invited talk).

Concordia University, Oct. 03, 2007, Montreal, Canada, Some Local Measures of Dependence between two random Variavles (Invited talk).

Kettering University, July 25, 2007, Flint, Michigan Ages and Measuring Ages. Applications in Life Comparison, Insurance, Risk, and More (Presentation at the Math Dept Seminar) June 25 - 30, 2007, Kiten, Bulgaria, National Seminar on Stichastics, Dependence between two randomm events. How to measure it? (Invited talk).

April 24, 2007, Institute of Mathematics and Statistics, University of Sao Paulo, Brazil On the Transfer of Global Measures of Dependence into Local Measures of Dependence between Two Random Variables. (Invited talk).

March 25 - 30, 2007, Maresias, Brazil, Third Brazilian Conference on Statistical Modelling in Insurance and Finance, Lifetime Distributions and Equivalent Ages. Applications in Insurance, Risk, and More (Invited talk).

October 18, 2006, Bowling Green, Ohio State University, Dept. of Statistics, Lifetime Distributions and Equivalent Ages. Possible Applications in Insurance, Risk, and More (Invited talk).

August 22-August 30, 2006, International Congress of Mathematicians, Madrid, Spain Aging and Longevity Control of Biological Systems via Drugs - a Reliability Model (Presented by Prof. Zohel Khalil, Concordia, Montreal, CA).

February 17, 2006, Kalamazoo, WMU, Dept. of Statistics, Age Affecting Control in Biological Systems and the Mechanism of Aging and Longevity of Biological Systems (Invited talk).

November 10 - 14, 2005, Venecia, Italy, IPSI International Symposium: Age Affecting Control in Biological Systems Explains the Mechanism of Aging and Longevity of Biological Systems (Invited talk, presented by Dr. Z. Khalil, Montreal, Canada).

October 13, 2005, Bulgaria, Sofia University, School of Mathematics and Informatics Coloqium, Age Affecting Control in Biological Systems Explains the Mechanism of Aging and Longevity of Biological Systems (invited talk).

June 22-24 2005, Pisa, Italy, Third special workshop "Multimedia semantics, Semantic Notation and Retrieval in Art and Architecture Image Collections (Presented by Dr P. Stanchev).

April 4 - 10, 2005, Sydney, Australia, 55th Session of the International Statistical Institute: Age Affecting Control in Biological Systems (Invited talk).

September 18-19, 2004, Elizabethtown, Pennsylvania, International Conference on Information Technology in Education, The Use of IT in Teaching Mathematics at Kettering University (Invited talk), and chaired one session.

August 14-17, 2004 - Austin, Texas, International Conference on Computing, Communications and Control Technologies, WWW - based distance education course "Management Support Systems" (Presented talk).

June 21-25, 2004, Santa Fe, New Mexico, 4th International Conference on Mathematical Methods in Reliability (MMR'2004). On Reliability of Hierarchical Systems with Gradual Failures (Invited talk), and chaired one session.

June 7-10, 2004, St Petersburg, Russia, The 1st French-Russian Conference on Longevity, Aging and Durability (LAD 2004) . Presented two talks
1. Age Affecting Repairs and Warranty Costs
2. Reliability Model For Biological Objects
and chaired one session.

June 29-July 5, 2003, Moscow, Russia, Workshop DCCN-2003, Periodic non-stationary arrival process in queueing networks and their characterization (Invited talk, presented by Dr V.Rykov).

June 23-29, 2003 , 28-th International Conf. on Information and Communication Technologies and Programming ICT&P 2003, On statistical hypotheses testing via simulation method (Invited talk).

June 5 - 8 2003, Honolulu, Hawaii, Hawaii International Conference on Statistics and Related fields, On properties and statistical estimation of ALM distributions (Invited talk), and chaired one session.

August 12 - 14 2002, Kuauai, Hawaii, 5-th IASTED International Conf. "Computer Graphics and Imaging" (CGIM-2002), Object recognition in the ANIMATION system (Presented talk by coauthor P.Stanchev)

June 26 - 29, 2002, Trondheim, Norway, 3rd International Conf. on Mathematical Methods in Reliability, Methodology and Practice, Presented invited talk "On Multi-State Reliability Systems",

April 3 - 6, 2002, Borovetz, Bulgaria 31st Spring Conf. of the Union of the Bulgarian Mathematicians (UBM), Bernoulli Trials: Extensions, Related Probability Distributions and Modeling Powers (an Invited talk), and chaired a session and a discussion workshop.

December 16 - 20, 2001, Hong Kong, 5-th International Conference on Optimization. Techniques and Applications (ICOTA 2001), On the influence of the observability and controllability to the optimal control quality (Invited talk, presented by Dr. V. Rykov, coauthor)

September 30 -October 07, 2001, Montreal, Canada. Invited talk presented at the University of Quebec in Montreal, Likelihood Ratio Test for Almost-Lack-of-Memory Distributions

August 24 - 25, 2001, Waterloo, Ontario, 3rd Canadian National Workshop on Queuing Theory and Related Fields (CANQUE'2001), Participation with presentation of the talk On Jobs Allocation in Queuing Systems with heterogeneous servers (joint work with Vladimir Rykov, and David Green)

August 4 - 10, 2001, Atlanta, Georgia, North American Joint Statistical Meeting (JSM) 2001, Participation with an Invited Talk A simple unreliable service model characterizes exponential distribution

September 15 - 16, 2000, London, Ontario. CANQUEUE'2000. A Model of Imperfect Repair Maintenance and Related Optimum Maintenance Strategies. (with coauthor Dr. Z. Khalil).

July 19 - 26, 2000, Catania, Italy. Third World Congress of Nonlinear Analysts WCNA'2000. Warranty Claims as Marked Point Processes - Invited lecture in Session 139: Stochastic and Economics, Inviteded by V.Lakshmikantham.

July 4 - 7, 2000, Bordeaux, France. Second International Conference on Math. Methods in Reliability, MMR'2000:
1. Maintenance Characteristics under Imperfect Repairs.
2. On Optimal Maintenance Strategies under Imperfect Repairs
(with coauthors W. Borges, N. Kolev, and Z. Khalil).

December 15, 1999, University Federal of Rio De Janeiro, Rio De Janeiro, Brazil. Uncertainty in Priodic Random Environment and Its Application in Financial Modeling.

December 12, 1999, Federal University of Minas Gerais, Belo Horizonte, Brazil. Warranty Cost Analysis of Age Dependent Failure Models.

December 02, 1999, University of Sao Paulo, Brazil. Uncertainty in Priodic Random Environment and Its Application.e

August 23 - 27, 1999, Athens, Greece. Environmetrics and Statistics in the Earth and Space Sciences (ESESS) presenting the paper: Cost Analysis of Proportional Rate Models I Environmental Protection (with coauthor Dr. S. Chukova, and Dr. Z. Khalil), Presented by Dr. Chukova.

May 2 - 5, 1999, Cincinnati, Ohio. Spring TIMS/ORSA Meeting INFORMS$'99. Organizer of the Session on Warranty Modeling, and presenting the paper: Warranty Analysis of an Age-dependent Failure Model for Repairable Product (with coauthor Dr. S. Chukova).

March 9 - 11, 1999, Wuerzburg, Germany. Workshop on Quality Indicators. A Review on Quality Indicators (invited).

January 28, 1999, Montreal, Canada. Common Seminar in Probability and Statistics, (Concordia, UQAM, and Universite de Montreal) Environmental modeling in driving periodic conditions (invited).

June 14 - 19, 1998. Sozopol, Bulgaria. Invited lecturer at The 24-th Summer School on the Applications of Mathematics in Techniques, organized by the Technical University of Sofia. Environmental modeling in driving periodic conditions (with coauthor Dr. S. Chukova).

August 1 - 7, 1997. Waterloo, Ontario, Canada. International Conference on Differential Equations and Dynamic Systems. The bivariate probability distributions with periodic failure rate via a hyperbolic differential equation, (coauthors Dr. S. Chukova, and Dr. D. Green, Jr.).

August 4 - 8, 1997, Insbruck, Austria. 8th International Conference on Quantitative Methods for the Environmental Sciences. Invited Talk: Uncertainty in periodic random environment and its applications for environmental modeling (with coauthors Dr. Stefanka Chukova, and Dr. Mohammed El-Saidi), presented by Dr. Chukova.

July 22 -25, 1997, Detroit, MI. 18th IFIP TC7 Conference on System Modeling and Optimization, Organizer of the Session of Modeling and Measuring of Product and Process Quality (with E. von Collani). Statistical Methods for Quality Comparison.

June 16 - 21, 1997. Sozopol, Bulgaria. Invited lecturer at The 23-rd Summer School on the Applications of Mathematics in Techniques, organized by the Technical University of Sofia Uncertainty in periodic random environment, and applications in technical modeling.

April 21 - 25, 1997. Perth, Australia. Invited lectures at Curtin Technical University and at The University of Western Australia. Probability distributions with periodic failure rates, and Uncertainty in periodic random environment.

April 26 - 30, 1997. Sydney, Australia. Invited lectures at The University of New South Wales. Uncertainty in periodic random environment.

November 29-30, 1996, Montreal, Canada. STATISTICAL RESEARCH IN THE 21st CENTURY. International Conference. Invited Lecture for the session Actuarial Statistics. Risk processes in periodic random environment and some of its applications.

July 22 - 26, 1996, Sao Paulo, Brazil. 7th International Conference on Statistical amd Mathematical Models in Environmental Sciences. Invited Talk: Modeling Periodicity of Chemical Concentrations in the Niagara River Water (with coauthors M. A. El-Saidi, and Abdel H. El-Shaarawi), presented by Dr. El-Saidi.

July 10 - 17, 1996, Athens, Greece. World Congress of Nonlinear Analysts WCNA'96. Queues with re-sequencing. A survey and recent results - Invited lecture in Session 69: Stochastic and Telecommunications, organized by B. Melamed.

May 4 -8, 1996, Washington D.C. Spring TIMS/ORSA Meeting INFORMS$'$96. Warranty analysis for complex systems, with coauthor Dr. S. Chukova.

February 21, 1996, Montreal, Canada. Seminar on Applications of Probability and Statistics in Actuarial Science, Dept. of Math. and Statistics, Concordia University, Probability distributions in periodic random environment and some of its applications.

February, 14, 1996, Sofia, Bulgaria. Common Seminar on Probability Theory and Mathematical Statistics, Math. Inst. of Bulgarian Academy of Sciences: Probability distributions in periodic random environment and some of its applications

February 5 - 9, 1996. Bankya, Bulgaria. International Workshop on Ruin Probability. Two 1-hour talks presented:
1. Compound counting processes in periodic random environment (coauthors Dr. S. Chukova, GMI, and Dr. Jose Garrido, Concordia Univ., Canada);
2. Ruin modeling for compound non-stationary Poisson processes with periodic claim intensity rates (same coauthors).
 
December 11 - 15, 1995. SPRUCE III, Merida, Yucatan, Mexico. The third SPRUCE International Conference on the theme STATISTICAL ASPECTS OF POLLUTION: ASSESSMENT AND CONTROL: Probability distributions in periodic random environment and some of its applications (coauthors Dr. S. Chukova, and Dr. D. Green, Jr.).

December 6 - 9, 1995, Bangi, Selangor, Malaysia. 6th International Conference on Environmetrics. Invited Talk: Overal Growth Rates in Periodic Environment (with coauthors M. A. El-Saidi, and Z. Khalil), presented by Dr. Khalil.

August 25, 1995. Flint, MI. First International Conference on Matrix-Analytic Methods in Stochastic Models: The execution time on unreliable server with latent breakdowns (coauthor Dr. S. Chukova).

 
SESSIONS ORGANIZED AND/OR CHAIRED
Invited Organizer of the Session on Warranty Modeling,
May 2 - 5, 1999, Cincinnati, Ohio, for the Spring TIMS/ORSA Meeting INFORMS$'99. (with Dr. S. Chukova).

Chairing a session for the Workshop
on Quality Indicators. March 9 - 11, 1999, Wuerzburg, Germany.

Organizing and chairing the Session on Modeling and Measuring of Product and Process Quality (with E. von Collani), for the 18th IFIP TC7 Conference on System Modeling and Optimization, July 22 -25, 1997, Detroit, MI).

Chairing Session at The 24-th Summer School on the Applications of Mathematics in Techniques, organized by the Technical University of Sofia. June 14 - 19, 1998, in Sozopol, Bulgaria.

Chairing Session at The 23-rd Summer School on the Applications of Mathematics in Techniques, organized by the Technical University of Sofia. June 16 - 21, 1997, in Sozopol, Bulgaria.

Chairman of the International Seminar on Statistical Data Analysis, Varna, Bulgaria, October 1990.

Organizer and Chairman of the International Seminar on Stability and Computer Modeling of Stochastic Processes, Varna, Bulgaria, May 11 - 18, 1985.

Chairman of the National Bulgarian Seminar on Mathematical Methods in quality control, with seven regular annual conferences, since 1984 until 1990 in different sites of Bulgaria.
 
PROFESSIONAL ACTIVITIES

Principal manager of the STATISTICS CLINIC, open since Fall 1998 for providing FREE STATISTICAL CONSULTING FOR STUDENTS, FACULTY AND STAFF at KETTERING UNIVERSITY.
Associate Editor of "ECONOMIC QUALITY CONTROL" - Journal and Newsletter for Quality and Reliability with managing Editor Prof. Dr. Elart von Collani, Inst. fur Angewandte Mathematik und Statistik, Sanderring 2, D-8700, Wurzburg, GERMANY.
Referee for Journal of The Operational Research Society, J. of Applied Mathematics and Stochastic Analysis, J. of Statistical Planning and Inference, J. of Mathematical Modelling.
Reviewer for Zentral Blatt fuer Mathematics, and for Mathematical Reviews - since 1971.
Referee/Reviewer of dissertations on Applied Probability and Applied Statistics, Stochastic Processes, Reliability, Queuing, Quality Control, Education in Stochastics and others.
Chairman of the National Stochastic Seminar at the Union of the Bulgarian Mathematicians, 1979 - 1991.
Dean of the Math. Faculty at Sofia University, 1989 - 1991.
Head of the Department of Probability and Statistics, Math. Faculty at Sofia University, since 1989.
Member Of the Bulgarian Highest Academic Attestation Council for Sciences in Mathematics and Physics, 1981-1990.
Member of American Society for Quality Control, Measurement Quality Division.
Member of American Statistical Association, and of its Ann Arbor chapter.
Member of the IFNA (International Federation of Nonlinear Analysis).
Member of The Union of Bulgarian Mathematicians.

 

   

Update Partially July, 2007