Nicholas A. NECHVAL

Professor Nicholas A. NECHVAL University of Latvia Raina bulv. 19 Riga, LV-1050 Latvia Phone: +371 7034701; +371 714 4050 Fax: +371 7034702 E-mail: nechval@junik.lv

Interests:

• Mathematics
• Stochastic Processes
• Pattern Recognition
• Digital Radar Signal Processing
• Operations Research
• Statistical Decision Theory
• Adaptive Control

From 1965 to 1992 participated as a scientific co-worker in early research and development work on the problem of Statistical Decisions in Civil Aviation at the Aviation Research Institute, Riga, Latvia. From 1987 has been a member of the Scientific Society (on problem of Protection from Biodeterioration) of the Russian Academy of Sciences. The holder of several patents in these fields.

Languages: English, Latvian, Russian

Education:

• Riga Civil Aviation Engineers Institute (Faculty of Electrical Engineering) cum laude, 1965
• Ph.D. degree in automatic control and systems engineering, Riga Aviation University, Riga, Latvia, 1969
• Dr.habil.sc.ing. (radio engineering), Riga Aviation University (RAU), 1993

Experience:

• Researcher, Aviation Research Institute, Riga, 1965-1992
• Assistant Professor, Department of Applied Mathematics, RAU, 1968-1993
• Professor, Department of Applied Mathematics, RAU, 1993-

Honours and Awards:

• Silver Medal of the Exhibition Committee for research of the problem of Prevention of Collisions between Aircraft and Birds, Moscow, Russia, 1992
• Golden Medal of Inclusion for Unfailing Service in Chosen Field, International Biographical Centre, Cambridge, England, 1997
• His name has been inscribed in the Twelfth Edition of THE INTERNATIONAL WHO¢ S WHO OF INTELLECTUALS, International Biographical Centre, Cambridge, England, 1997

Professional Activities and Memberships

• Member, Scientific Society (on problem of Protection from Biodeterioration), Russian Academy of Sciences, 1987-
• Member, Latvian Association of Professors, 1997-

Lectures:

• Goodness-of-fit testing on small samples of the data. Invited lecture. Department of the Mathematical Institute of Steklov, Leningrad, Russia, 1985.
• Decision making on small samples of the data. Invited lecture. Russian Academy of Sciences, Moscow, Russia, 1993.

Courses:

D.Sc. courses in automatic control and applied mathematics. Moscow Aviation Institute, Moscow, Russia, 1974-1975.

 

Recent/Representative Publications:

• N.A.Nechval. Constructive invariant coupling method and some applications thereof for solving problems of statistical sequential analysis and synthesis of decision rules at discrimination of composite hypotheses. Proceedings of the 5th International Conference on Pattern Recognition, Miami Beach, Florida USA, December 1-4, 1980, pp.1366-1368.
• N.A.Nechval, A new statistical approach to efficient solving the some problems which arise in pattern recognition. Proceedings of the 8th International Conference on Pattern Recognition, Paris, France, October 27-31, 1986, pp.111-113.
• N.A.Nechval, Effective invariant coupling technique for designing the new or improved statistical procedures of detection and estimation in signal processing systems. In Book: Signal Processing. III: Theories and Applications, I.T.Young et al (editors), 1986, North-Holland: Elsevier Science Publishers B.V., pp.1051-1054.
• N.A.Nechval, A new efficient approach to constructing the minimum risk estimators of state of stochastic systems from the statistical data of small samples. Proceedings of the 8th IFAC Symposium on Identification and System Parameter Estimation, Beijing, P.R.China, 27-31 August 1988, pp.71-76.
• N.A.Nechval, Goodness-of-fit testing in the presence of nuisance parameters with applications to feature selection and pattern recognition in digital image processing. - SPIE Proceedings on Visual Communications and Image Processing ¢ 88, Cambridge, Massachusetts USA, 9-11 November 1988, vol.1001, Paper No.1001-124, 8 pages.
• N.A.Nechval, An efficient testing procedure for comparing several competing treatments in clinical trials. In Book: Cybernetics and Systems Research¢ 88, R.Trappl (ed.), 1988, Dordrecht - The Netherlands: Kluwer Academic Publishers, pp.501-507.
• N.A.Nechval, A general method for constructing automated procedures for testing quickest detection of a change in quality control. Computers in Industry: An International Journal (North-Holland), 1988, vol.10, pp.177-183.
• N.A.Nechval, On predicting accidents and serious incidents to civil aircraft due to bird strikes in a future time period from known observations. Proceedings of the 20th Meeting of Bird Strike Committee Europe, Helsinki, Finland, 21-25 May 1990, pp.147-155.
• N.A.Nechval, The equal probability test and optimal allocation of subjects to the groups when comparing a new drug and a placebo. Cybernetics and Systems: An International Journal (USA), 1990, vol.21, pp.503-512.
• N.A.Nechval, Sample size determination in clinical trials for estimation of minimum survival times. In Book: Cybernetics and Systems Research ¢ 92, R.Trappl (ed.), 1992, vol.2, World Scientific Publishing Co. Ptc. Ltd., Singapore, pp.939-946.
• N.A.Nechval, A conditional sequential test for the equality of two odds ratios in 2x2x2 comparative clinical trials. In Book: Cybernetics and Systems Research¢ 94, R.Trappl (ed.), 1994, vol.2, World Scientific Publishing Co. Ptc. Ltd., Singapore, pp.999-1006.
• V.D.Ilyichev, V.Ya.Biryukov, N.A.Nechval, Technical-Ecological Strategy of Protection from Biodeterioration, 1995, Moscow: Nauka, 248 pp. (in Russian).
• N.A.Nechval, Recognition of structural changes in stochastic systems from the data of small samples. In Book: Cybernetics and Systems Research¢ 96, R.Trappl (ed.), 1996, vol.1, Austrian Society for Cybernetic Studies, Vienna, pp.122-127.
• N.A.Nechval, Adaptive CFAR tests for detection of a signal in noise and deflection criterion. Proceedings of the 4th UK/Australian International Symposium on DSP for Communication Systems, Perth-Joondalup, Australia, 23-26 September 1996, 8 pages.
• N.A.Nechval, UMPI test for adaptive signal detection. SPIE Proceedings on Signal Processing, Sensor Fusion, and Target Recognition VI, Orlando, Florida USA, 21-24 April 1997, vol.3068, Paper No.3068-73, 12 pages.
• N.A. Nechval, K.N. Nechval. Adaptive optimization in stochastic systems via fiducial approach. - CASYS (Int. J. Computing Anticipatory Systems), 2000, vol. 6, pp. 309-327.
• N.A. Nechval, K.N. Nechval. Detecting a change point in a sequence of small area statistics. - Statistics in Transition, 2000, vol. 4, N4, pp. 699-701.
• N.A. Nechval, K.N. Nechval, E.K.Vasermanis. Tolerance limits for reliability analysis in maintenance problems. - Aviation (Appendix of Scientific Journal 'Transport Engineering'),  2000, N 5, pp. 109-114.
• N.A. Nechval, K.N. Nechval, E.K.Vasermanis. Optimization of interval estimators via invariant embedding technique. - CASYS (Int. J. Computing Anticipatory Systems), 2001, vol. 9, pp. 241-255.
• N.A. Nechval, K.N. Nechval, E.K.Vasermanis. Change point detection in regression relationship. - Managemnt of Organizations: Systematic Research, 2001, vol. 19, pp. 81-88.
• E.K.Vasermanis, K.N. Nechval, N.A. Nechval. Normal regression and prediction. - Managemnt of Organizations: Systematic Research, 2001, vol. 19, pp. 185-188
• N.A. Nechval, K.N. Nechval, E.K.Vasermanis. Optimization of inventory control systems based on the past data. - In: Cybernetics and Systems 2002, R. Trappl (ed.), Vol. 1, Vienna: Austrian Society for Cybernetic Studies, 2002, pp. 63-68.
• K.N. Nechval, N.A. Nechval, E.K.Vasermanis. Optimization of dosage of certain drugs via the dual control approach. - In: Cybernetics and Systems 2002, R. Trappl (ed.), Vol. 1, Vienna: Austrian Society for Cybernetic Studies, 2002, pp. 358-363.
• K.N. Nechval, N.A. Nechval, E.K.Vasermanis. Cost-risk analysis in statistical validating simulation models of service processes. - In: Cost-Oriented Automation, R.Bernard&H.-H. Erbe (eds.), North Holland:Elsevier Science Publishers B.V., 2002, pp. 51-56.
• N.A. Nechval, K.N. Nechval, E.K.Vasermanis. Statistical model for prediction of the fatigue crack growth in aircraft service. – In: Fatigue Damage of Materials 2003, (Eds.A.Varvani-Farahani, C.A.Brebia), Southampton, Boston: WIT Press, 2003, pp. 435-445.
• E.K.Vasermanis, N.A. Nechval, K.N. Nechval,. Dual adaptive credit granting policy. - Management of Organizations: Systematic Research, 2003, vol.27, pp. 163-170. 

Research Projects

• N.A.Nechval (Head of Project). Statistical Inferences on Small Samples of the Data. Latvian Council of Science, 1995-1996, 1997-1999
• N.A.Nechval (Head of Project). Statistical Inferences and Efficient Decision-Making on Small Samples of the Data. Latvian Council of Science (2001 - 2004)
• N.A.Nechval (Head of Project). New criteria of decision-making and algorithms of dual control for the systems with computer-based decision support. Latvian Council of Science (2005 - )

 

Last update 12.02.2004