Nicholas A. Nechval
Dr.Hab.Sc.Eng.,
Professor
Department
of Mathematical Statistics University of Latvia
Raina Blvd
19, LV-1050 Riga,
Latvia
Tel:
(+371) 7144050
Fax:
(+371) 7100660
RESEARCH INTERESTS
Broadly
viewed, my research interests are in models and algorithms for nonlinear
optimization (under conditions of incomplete information) and their
application to problems arising in engineering and science. Application
areas of interest focus mainly on optimization problems with a special
interest in applying the proposed techniques to yield management and
decision-making in aircraft service.
EMPLOYMENT/POSITIONS
University of Latvia (LU), Riga, Latvia
·
Professor,
Mathematical Statistics and Operations Research 1999
–
Riga Aviation University (RAU) ), Riga, Latvia
·
Professor,
Mathematical Statistics and Operations Research
1993 – 1999
Riga Civil Aviation Engineers Institute (RCAEI) ), Riga, Latvia
·
Associate
Professor, Applied Mathematics
1969 – 1993
Aviation
Research Institute (ARI), Riga, Latvia
·
Principal
Investigator
1965-1992
EDUCATION
Riga
Aviation University (RAU)
· Dr.Hab.Sc.Eng. in Radio Engineering
June 1993
Riga Civil
Aviation Engineers Institute (RCAEI)
· Ph.D. in Automatic Control and Systems Engineering
June 1969
GRANTS
Field of
Knowledge: Mathematics
· “Statistical Inferences and Efficient Decision Making on Small
Samples of the Data”
(Grant No. 01.0031 from the Latvian Council of Science, 1994 -1996;
1997-1999; 2000-2002;
2003-2005), Principal Investigator.
Field of
Knowledge: Computer Science
· “New
Criteria of Optimality and Algorithms of Dual Control in Systems with
Computer’s Support
of Decisions”
(Grant No. 02.0918 from the Latvian Council of Science, 2002-2005),
Principal Investigator.
· “Effective
Optimization in Complex Stochastic Service Systems via Statistical
Inference
Equivalence Principle”
(Grant No. 06.1936 from the Latvian Council of Science, 2006-2008),
Principal Investigator.
Field of
Knowledge: Mechanical Engineering
· “Stochastic
Fatigue Models and Criteria for Efficient Planning
Warranty
Period and Inspections in Service of Aircraft Structures”
(Grant No. 07.2036 from the Latvian Council of Science, 2007-2009),
Principal Investigator.
Co-investigator on several other grants.
EDITORIAL
POSITIONS
·
International Editorial Advisor, IJCAS (An International Journal of
Computing Anticipatory Systems), 1999 –
·
International Editorial Advisor, SCIENTIFIC INQUIRY (A
Journal of the International Institute for General Systems Studies),
2006 –
·
International Editorial Advisor,
World
Applied Sciences Journal
(WASJ), 2006 –
·
Regional Editor,
Advances in Natural and Applied Sciences
(ANAS),
2007 -
PROFESSIONAL ACTIVITIES
· Member,
Advisory Board, Dept. of Applied Mathematics, Transport and
Telecommunication Institute
· Member,
Advisory Board, Dept. of Operations Research, Baltic International
Academy
· Member, Institute of Mathematics and Informatics
MEMBERSHIPS IN PROFESSIONAL SOCIETIES
· Belgian Mathematical Society “CHAOS”, Member
1996-
· Baltic Operations Research Society (BORS), Member
1996-
·
Scientific Society at the Russian Academy of Sciences, Research
Problem:“Protection
from Biodeterioration”, Member 1984-
· Latvian Statistical Association,
Member 1980-
BOOKS
[1]
Nechval, N.A. (1982). Modern Statistical Methods of Operations
Research. Riga: RCAEI Publishers. (In Russian).
[2]
Nechval, N.A. (1984). Theory and Methods of Adaptive Control of
Stochastic Processes. Riga: RCAEI Publishers. (In Russian).
[3]
Ilyichev, V.D., Biryukov, V.Ya. & Nechval, N.A. (1995).
Technical-Ecological Strategy of Protection from Biodeterioration.
Moscow: NAUKA. (In Russian).
[4]
Vasermanis, E.K., Nechval, N.A. (2004). Improved Decisions in
Statistics. Riga: SIA «Izglītības soļi».
REFEREED
JOURNAL PUBLICATIONS
[1]
Nechval, K.N., Nechval, N.A., Bausova,
I., Šķiltere, D., Strelchonok, V.F. (2006).
“Prediction
of fatigue crack growth process via artificial neural network
technique,” International
Journal of Computing,
Vol. 5, issue 3, pp. 21-32.
[2]
Nechval, K.N., Nechval, N.A. (2006). “Testing for crack initiation in
fatigue-sensitive aircraft structures with repair under type I censored
sampling”. Transport and Telecommunication, Vol. 7, No. 1, pp.
11-15.
[3]
Nechval, K.N., Nechval, N.A. (2006). “Prediction imits for future
samples from a Weibull distribution”. Transport and Telecommunication,
Vol. 7, No. 1, pp. 44-49.
[4]
Berzins, G., Nechval, N.A., Vasermanis, E.K. (2006). “Optimal
multiperiod investment strategy for project portfolio”. IJCAS (An
International Journal of Computing Anticipatory Systems), Vol. 19,
pp. 37-47.
[5]
Moldovan, M.V., Nechval, N.A. (2006). “The variance-free
characterization of heteroscedastic normal variables with an application
in financial econometrics”. IJCAS (An International Journal of
Computing Anticipatory Systems), Vol. 19, pp. 60-69.
[6]
Nechval, K.N., Nechval, N.A., Rozevskis, U. (2006). “In-service
inspections of multiple systems under availability requirement”.
IJCAS (An International Journal of Computing Anticipatory Systems),
Vol. 19, pp. 146-158.
[7]
Vasermanis, E.K., Nechval, K.N., Nechval, N.A. (2005). “Statistical
models for checkpointing of computer systems”. Transport and
Telecommunication, Vol. 6, No. 1, pp. 130-132.
[8]
Nechval, K.N., Nechval, N.A. (2005). “Testing for crack initiation due
to fatigue in aircraft structure components with repair under type I
censored sampling”. Computer Science, Vol. 6, pp. 11-16.
[9]
Nechval, K.N., Nechval, N.A. (2005). “Lower and upper prediction limits
for future samples from a Weibull distribution with some applications”.
Computer Science, Vol. 6, pp. 74-84.
[10]
Nechval, K.N., Nechval, N.A. (2004). “Probabilistic models of the
fatigue crack growth process”. Computer Science, Vol. 5, pp.
114-123.
[11]
Vasermanis, E.K., Nechval, N.A., Nechval, K.N., Rozite, K. (2004).
“Optimal airline seat inventory control for multi-leg flights”.
Aviation (An International Research Journal of Air Transport),
Vol. VIII, No. 4, pp. 10-15.
[12]
Nechval, K.N., Nechval, N.A., Vasermanis, E.K. (2004). “Inspection
policies in aircraft service”. Aviation (An International
Research Journal of Air Transport), Vol. VIII, No. 4, pp. 3-9.
[13]
Nechval, N.A., Nechval, K.N., Vasermanis, E.K. (2004). “Estimation of
warranty period for structural components of aircraft”. Aviation
(An International Research Journal of Air Transport), Vol. VIII,
No. 3, pp. 3-9.
[14]
Nechval, N.A., Nechval, K.N., Vasermanis, E.K. (2004). “Prediction
intervals for future outcomes with a minimum length property”.
Computer Modelling and New Technologies, Vol. 8, No. 2, pp. 48-61.
[15]
Nechval, K.N. (2004). “Inspection policies in service of aircraft”.
Transport and Telecommunication, Vol. 5, No. 3, pp. 63-76.
[16]
Vasermanis, E.K., Nechval, N.A., Nechval, K.N., Rozevskis, U. and Rozite,
K. (2004). “Prediction and categorical control in regression”. IJCAS
(An International Journal of Computing Anticipatory Systems),
Vol. 15, pp. 317-326.
[17]
Nechval, N.A., Vasermanis, E.K., Nechval, K.N (2003). “Unbiased
estimation of reliability for truncated laws in aeronautical
engineering”. Aviation (An International Research Journal of
Air Transport), Vol. VII, No. 1, pp. 22-27.
[18]
Vasermanis, E.K., Nechval, K.N., Nechval, N.A. (2003). “Statistical
validation of simulation models of observable systems.” Kybernetes
(An International Journal of Systems & Cybernetics), Vol.
32, No. 5/6, pp. 858-869.
[19]
Nechval, N.A., Nechval, K.N., Vasermanis, E.K. (2003). “Effective
state estimation of stochastic systems.” Kybernetes (An
International Journal of Systems & Cybernetics), Vol. 32, No.
5/6, pp. 666-678.
[20]
Nechval, K.N., Nechval, N.A., Vasermanis, E.K. (2003). “Adaptive
dual control in one biomedical problem.” Kybernetes (An
International Journal of Systems & Cybernetics), Vol. 32, No.
5/6, pp. 658-665.
[21]
Vasermanis, E.K., Nechval, N.A., Nechval, K.N. (2003). “Dual adaptive
credit granting policy.” Management of Organizations: Systematic
Research, Vol. 27, pp. 163-170.
[22]
Nechval, N.A., Nechval, K.N.,
Vasermanis, E.K.
(2002). “State estimation of stochastic systems with cost for
observation”. IJCAS (An International Journal of Computing
Anticipatory Systems), Vol. 11, pp. 350-364.
[23]
Nechval, N.A., Nechval, K.N., Vasermanis, E.K. (2001). “Optimization of
interval estimators via invariant embedding technique”. IJCAS (An
International Journal of Computing Anticipatory Systems), Vol. 9,
pp. 241-255.
[24]
Nechval, N.A., Nechval, K.N., Vasermanis, E.K. (2001). “Change point
detection in regression relationship.” Management of Organizations:
Systematic Research, Vol. 19, pp. 81-88.
[25]
Vasermanis, E.K., Nechval, K.N., Nechval, N.A. (2001). “Normal
regression and prediction.” Management of Organizations: Systematic
Research, Vol. 19, pp. 185-188.
[26]
Nechval, N.A., Nechval, K.N., Vasermanis, E.K. (2000). “Tolerance limits
for reliability analysis in maintenance problems”. Aviation (An
International Research Journal of Air Transport), No. 5, pp.
109-114.
[27]
Nechval, N.A., Nechval, K.N. (2000). “Detecting a change point in a
sequence of small area statistics”. Statistics in Transition,
Vol. 4, No. 4, pp. 699-710.
[28]
Nechval, N.A., Nechval, K.N. (2000). “Adaptive optimization in
stochastic systems via fiducial approach”. IJCAS (An
International Journal of Computing Anticipatory Systems), Vol. 6,
pp. 309-327.
[29]
Nechval, N.A., Nechval, K.N. (1999). “Applications of invariance to
estimation of safety stock levels in inventory model”. Computers &
Industrial Engineering, Vol. 37, pp. 247-250.
[30]
Nechval, K.N., Nechval, N.A. (1999). “Constructing lower simultaneous
prediction limits on observations in future samples from the past data”.
Computers & Industrial Engineering, Vol. 37, pp. 133-136.
[31]
Nechval, N.A., Nechval, K.N., Heimanis, B.M. (1999). “Adaptive
optimization in stochastic systems via the variational technique”.
IJCAS (An International Journal of Computing Anticipatory Systems),
Vol. 3, pp. 317-328.
[32]
Nechval N.A. (1990). “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, Vol. 21,
pp. 503-512.
[33]
Nechval N.A. (1988). “A general method for constructing automated
procedures for testing quickest detection of a change in quality
control”. Computers in Industry, Vol. 10, pp. 177-183.
REFEREED
BOOK PUBLICATIONS
[1]
Nechval, K.N., Nechval, N.A., Berzinsh, G., Danovich, V. (2006).
“Prediction limits for future samples from a Weibull distribution with
some applications to decision-making in aircraft service”. In:
Cybernetics and Systems 2006, Robert Trappl (editor), Vol. I,
Austrian Society for Cybernetic Studies, Vienna, Austria, pp. 74-79.
[2]
Nechval, N.A., Rozite, K., Strelchonok, V.F. (2006). “Optimal
airline multi-leg flight seat inventory control”. In: Computing
Anticipatory Systems, Daniel M. Dubois (ed.), Melville, New York:
AIP (American Institute of Physics) Proceedings, Vol. 839, pp. 591-600.
[3]
Nechval, N.A., Nechval, K.N., Srelchonok, V.F., Vasermanis, E.K. (2004).
“Adaptive CFAR tests for detection and recognition of targets signals in
radar clutter”. In:
The 2004
Conferences Best Of,
C. Berger-Vachon & A.M. Gil Lafuente (editors),
Barcelona,
Spain:
AMSE Periodicals, pp. 62-80.
[4]
Strelchonok, V.F., Nechval, K.N., Nechval, N.A., Vasermanis, E.K.,
Rozevskis, U., Rozite, K., Moldovan, M. (2004). “Anticipatory adaptive
credit granting policy”. In: Computing Anticipatory Systems,
Daniel M. Dubois (ed.), Melville, New York: AIP (American Institute of
Physics) Proceedings, Vol. 718, pp. 525-532.
[5]
Nechval, N.A., Nechval, K.N., Vasermanis, E.K., Rozevskis, U.,
Strelchonok, V. F. (2004). “Anticipatory adaptive control for a class of
stochastic system with incomplete information”. In: Computing
Anticipatory Systems, Daniel M. Dubois (ed.), Melville, New York:
AIP (American Institute of Physics) Proceedings, Vol. 718, pp. 243-254.
[6]
Nechval, N.A., Nechval, K.N., Vasermanis, E.K. (2003). “Statistical
models for prediction of the fatigue crack growth in aircraft service.”
In:
Fatigue Damage of Materials 2003,
A. Varvani-Farahani & C. A. Brebbia (editors), Southampton, Boston:
WIT Press, pp. 435-445.
[7]
Nechval, K.N., Nechval, N.A., Vasermanis, E.K. (2002). “Optimization of
dosage of certain drugs via the dual control approach”.
In:
Cybernetics and Systems’2002,
R. Trappl (ed.), Vienna: Austrian Society for Cybernetic Studies, pp.
358-363.
[8]
Nechval, N.A., Nechval, K.N., Vasermanis, E.K. (2002). “Optimization of
inventory control systems based on the past data”.
In:
Cybernetics and Systems’2002,
R. Trappl (ed.), Vienna: Austrian Society for Cybernetic Studies, pp.
63-68.
[9]
Nechval, K.N., Nechval, N.A. (2000). “Adaptive control of airline
booking levels”. In: Cybernetics and Systems’2000, R. Trappl
(ed.), Vol. 2. Austrian Society for Cybernetic Studies, Vienna, pp.
507-512.
[10]
Nechval, N.A., Nechval, K.N. (2000). “State estimation of stochastic
systems via invariant embedding technique”. In: Cybernetics and
Systems’2000, R. Trappl (ed.), Vol. 1. Austrian Society for
Cybernetic Studies, Vienna, pp. 96-101.
[11]
Nechval, N.A., Nechval, K.N., Heimanis, B.M. (1998). “Variational
approach to adaptive optimization of stochastic systems”. In:
Cybernetics and Systems’98 (edited by R. Trappl), Vol. 1. Austrian
Society for Cybernetic Studies, Vienna, Austria, pp. 44-49.
[12]
Nechval N.A. (1997). “Adaptive CFAR tests for detection of a signal in
noise and deflection criterion”. In: Digital Signal Processing for
Communication Systems (edited by T. Wysocki, H. Razavi, B. Honary),
Boston · Dordrecht · London: Kluwer Academic Publishers, pp. 177-186.
[13]
Nechval N.A. (1996). “Recognition of structural changes in stochastic
systems from the data of small samples”. In: Cybernetics and Systems¢96,
R. Trappl (ed.), Vol. 1, Vienna: Austrian Society for Cybernetic
Studies, pp. 122-127.
[14]
Nechval N.A. (1994). “A conditional sequential test for the equality of
two odds ratios in 2´2´2 comparative clinical trials”. In:
Cybernetics and Systems Research’94, R. Trappl (ed.), Vol. 2,
Singapore · New Jersey · London · Hong Kong: World Scientific Publishing
Co. Pte. Ltd., pp. 999-1006.
[15]
Nechval N.A. (1992). “Sample size determination in clinical trials for
estimation of minimum survival times”. In: Cybernetics and Systems
Research’92, R. Trappl (ed.), Vol. 2, Singapore · New Jersey ·
London · Hong Kong: World Scientific Publishing Co. Pte. Ltd., pp.
939-946.
[16]
Nechval N.A. (1988). “An efficient testing procedure for comparing
several competing treatments in clinical trials”. In: Cybernetics and
Systems’88, R. Trappl (ed.), Dordrecht - The Netherlands: Kluwer
Academic Publishers, pp. 501-507.
[17]
Nechval N.A. (1986). “Effective invariant coupling technique for
designing the new or improved statistical procedures of detection and
estimation in signal processing systems”. In: Signal Processing III:
Theories and Applications, I.T. Young et al. (editors),
North-Holland: Elsevier Science Publishers B.V., pp. 1051-1054.
REFEREED
CONFERENCE PUBLICATIONS
[1]
Nechval, K.N., Nechval, N.A., Berzinsh, G., Danovich, V., Purgailis, M.
(2007).
“Artificial
Neural Network Based Prediction of Fatigue Crack Propagation”.
In: Proceedings of the 2007 International Conference on Artificial
Intelligence and Pattern Recognition (AIPR-07), Orlando, FL,
USA, July 9-12, Vol.1, pp. 423-430.
[2]
Nechval, K.N., Nechval, N.A., Berzinsh, G., Danovich, V., Purgailis, M.
(2007).
“Recognition
of Vibration Signal Changes for Real-Time Detection of Developing Cracks
in Jet Engine Rotors”.
In: Proceedings of the 2007 International Conference on Artificial
Intelligence and Pattern Recognition (AIPR-07), Orlando, FL,
USA, July 9-12, Vol. 1, pp. 431-434.
[3]
Nechval, N.A., Nechval, K.N., Berzinsh, G., Purgailis, M. (2007).
“Statistical
Inference Equivalence Principle and its Applications to Yield Management”.
In:
Proceedings of the 11th World Multi-Conference on Systemics, Cybernetics
and Informatics: WMSCI 2007,
Orlando, Florida, USA, July 8-11, Vol. 4, pp. 141-146.
[4]
Nechval, K.N., Nechval, N.A., Berzinsh, G., Purgailis, M. (2007).
“In-Service
Inspection Strategies for the Case of Unexpected Detection of Fatigue
Cracks in a Fleet of Aircraft”.
In:
Proceedings of the 11th World Multi-Conference on Systemics, Cybernetics
and Informatics: WMSCI 2007,
Orlando, Florida, USA, July 8-11, Vol. 4, pp. 191-196.
[5]
Nechval, K.N., Nechval, N.A., Bausova, I., Berzins, G., Purgailis,
M., Strelchonok, V. (2007).
“Real-time
detection of developing cracks in jet engine rotors via recognition of
vibration signal changes”.
In: Proceedings of the 9th International Conference on
Pattern Recognition and Information Processing, Minsk, Belarus, May
22-24, pp. 35-39.
[6]
Nechval, N.A., Nechval, K.N., Bausova, I., Berzins, G., Purgailis,
M., Skiltere, D. (2007).
“Recognition
of changes in a model structure of noisy autoregressive process”.
In: Proceedings of the 9th International Conference on
Pattern Recognition and Information Processing, Minsk, Belarus, May
22-24, pp. 40-44.
[7]
Nechval, K.N., Nechval, N.A. (2007). “Stochastic fatigue models and
criteria for efficient planning inspections in service of aircraft
structures”. In: Proceedings of the 6th Annual Hawaii
International Conference on Statistics, Mathematics and Related Fields,
Honolulu, Hawaii, USA, January 17 - 19, pp. 918-943.
[8]
Nechval, N.A., Nechval, K.N. (2007). “Statistical inference equivalence
principle with applications to yield management”. In: Proceedings of
the 6th Annual Hawaii International Conference on Statistics,
Mathematics and Related Fields, Honolulu, Hawaii, USA, January 17 -
19, pp. 944-953.
[9]
Nechval, K.N., Nechval, N.A., Berzinsh, G., Krasts, J., Purgailis,
M., Rozite, K., Strelchonok, V.F. (2006). “Statistical
inferences for the Weibull distribution”,
In: Proceedings of the 6th International Conference on
Reliability and Statistics in Transportation and Communication,
Riga, Latvia, October 25-28, pp. 46-52.
[10]
Nechval, K.N., Nechval, N.A., Berzinsh, G., Purgailis, M., Rozevskis,
U., Zolova, N. (2006). “Sequential
in-service inspections for technical systems under availability
requirement and parametric uncertainty”,
In: Proceedings of the 6th International Conference on
Reliability and Statistics in Transportation and Communication,
Riga, Latvia, October 25-28, pp. 215-225.
[11]
Nechval, K.N., Nechval, N.A., Bausova, I., Skiltere, D., Strelchonok,
V.F. (2006). “Fatigue crack growth prediction via artificial neural
network technique”. In: Proceedings of the Fourth International
Conference on Neural Networks and Artificial Intelligence (ICNNAI’2006),
Vladimir Golovko (editor), Brest, BELARUS, 31 May-2 June, pp. 124-129.
[12]
Nechval, N.A., Berzinsh, G., Danovich, V., Zolova, N. (2006).
“Optimization in newsboy problems under constraints and uncertainty via
statistical inference equivalence principle”. In: Proceedings of the
International Conference on Information Systems, Logistics and Supply
Chain, Vol. 2, Lyon, FRANCE, May 14-17, pp. 1044-1053.
[13]
Nechval, N.A., Nechval, K.N., Rozevskis, U. (2005). “Statistical
inference equivalence principle and its applications to constrained
optimization of decisions under uncertainty”. In: Proceedings of the
35th International Conference on Computers and Industrial
Engineering (CIE 2005),
Mohamed I.
Dessouky
(Ed.), Istanbul, Turkey, June 19-22, 2005, pp. 1439-1444.
[14]
Nechval, K.N., Nechval, N.A., Rozevskis, U. (2005). “In-service
inspections for the case of unexpected detection of fatigue cracks in a
fleet of aircraft”. In: Proceedings of the 35th
International Conference on Computers and Industrial Engineering (CIE
2005),
Mohamed I.
Dessouky
(Ed.), Istanbul, Turkey, June 19-22, 2005, pp. 1433-1438.
[15]
Nechval, N.A., Nechval, K.N. (2005). “Constrained optimization in
newsboy problems under uncertainty via statistical inference equivalence
principle“. In: Proceedings of the 12th International
Conference on Analytical and Stochastic Modelling Techniques and
Applications (ASMTA’05), Khalid Al-Begain
(Ed.), Riga, LATVIA, June 1-4, 2005, pp. 166-171.
[16]
Nechval, K.N., Nechval, N.A., Berzins, G. (2005). “Inspection
policies for fatigue-sensitive components in aircraft service“. In:
Proceedings of the 12th International Conference on
Analytical and Stochastic Modelling Techniques and Applications (ASMTA’05),
Khalid Al-Begain (Ed.), Riga, LATVIA,
June 1-4, 2005, pp. 71-76.
[17]
Nechval, K.N., Nechval, N.A., Vasermanis, E.K. (2005). “Estimation of
warranty period for fatigue-sensitive aircraft structure components“.
In: Proceedings of the 12th International Conference on
Analytical and Stochastic Modelling Techniques and Applications (ASMTA’05),
Khalid Al-Begain (Ed.), Riga, LATVIA,
June 1-4, 2005, pp. 61-70.
[18]
Nechval, N.A., Nechval, K.N., Bausova, I., Šķiltere, D. (2005).
“Recognition of data models from separate families of hypotheses”. In:
Proceedings of the 8th International Conference on Pattern
Recognition and Information Processing (PRIP’05), R. Sadykhov,
S. Ablameiko, A. Doudkin, L. Podenok (Eds), Minsk, BELARUS, May 18-20,
2005, pp. 381-383.
[19]
Nechval, N.A., Bausova, I., Šķiltere, D., Strelchonok, V.F. (2005).
“Change point detection in a sequence of recognized images”. In:
Proceedings of the 8th International Conference on Pattern
Recognition and Information Processing (PRIP’05), R. Sadykhov,
S. Ablameiko, A. Doudkin, L. Podenok (Eds), Minsk, BELARUS, May 18-20,
2005, pp. 276-279.
[20]
Bausova, I., Nechval, N.A., Strelchonok, V.F., Šķiltere, D. (2005).
“Signal detection in noisy autoregressive processes”. In: Proceedings
of the 8th International Conference on Pattern Recognition
and Information Processing (PRIP’05), R. Sadykhov, S.
Ablameiko, A. Doudkin, L. Podenok (Eds), Minsk, BELARUS, May 18-20,
2005, pp. 72-74.
[21]
Nechval, N.A., Nechval, K.N., Vasermanis, E.K. (2005). “Estimation and
testing of system availability based on the concept of pivotal
quantity”. In: Proceedings of the Fourth International Conference on
System Identification and Control Problems (SICPRO'05),
Moscow, RUSSIA, January 25-28, 2005, CD-ROM Paper #24002, 21 pages.
[22]
Nechval, K.N., Nechval, N.A., Vasermanis, E.K. (2005).
“Statistical validation of simulation models via pivotal quantity
approach”. In: Proceedings of the Fourth International Conference on
System Identification and Control Problems (SICPRO'05),
Moscow, RUSSIA, January 25-28, 2005, CD-ROM Paper #24001, 9 pages.
[23]
Nechval, K.N., Nechval, N.A., Vasermanis, E.K. (2004). “Statistical
models and decisions in aircraft service”. In: Proceedings of the
International Conference on Modelling and Simulation (MS'2004),
Minsk, Belarus, April 27-29, 2004, pp.
249-253.
[24]
Strelchonok, V.F., Nechval, N.A., Nechval, K.N., Vasermanis, E.K.
(2004). “Adaptive CFAR tests for detection and recognition of target
signals in radar clutter”. In: Proceedings of the International
Conference on Modelling and Simulation (MS'2004),
Minsk, Belarus, April 27-29, 2004, pp.
244-248.
[25]
Vasermanis, E.K., Nechval, N.A., Nechval, K.N. (2004). “UMPI test for
identifying an observable system with one of several simulation models”.
In: Proceedings of the International Conference on Modelling and
Simulation (MS'2004), Minsk, Belarus,
April 27-29, 2004, pp. 239-243.
[26]
Nechval, N.A., Nechval, K.N., Vasermanis, E.K. (2004). “Dynamic
airline seat inventory control”. In: Proceedings of the International
Conference on Modelling and Simulation (MS'2004),
Minsk, Belarus, April 27-29, 2004, pp.
234-238.
[27]
Nechval, N.A., Nechval, K.N., Vasermanis, E.K. (2004). “Dynamic adaptive
control of airline seat inventory with multiple nested fare classes”.
In: Proceedings of the Third International Conference on System
Identification and Control Problems (SICPRO’04), Moscow, Russia,
January 28-30, 2004, CD-ROM Paper #23007, 15 pages.
[28] Nechval,
N.A., Nechval, K.N., Vasermanis, E.K. (2003). “Shortest-length
prediction intervals for future outcomes”. In: Proceedings of the
International HMS’2003 Conference (edited by Yuri Merkuryev,
Agostino G. Bruzzone, Galina Merkuryeva, Leonid Novitsky, Edward
Williams), Riga, Latvia, September 18-20, 2003, pp. 225-234.
[29]
Vasermanis, E.K., Nechval, N.A. and Nechval, K.N. (2003). “Airline seat
inventory control”. In: Proceedings of the International HMS’2003
Conference (edited by Yuri Merkuryev, Agostino G. Bruzzone, Galina
Merkuryeva, Leonid Novitsky, Edward Williams), Riga, Latvia, September
18-20, 2003, pp. 128-136.
[30]
Nechval,
K.N., Nechval, N.A. and Vasermanis, E.K. (2003).
“Technique for identifying an observable process with one of several
simulation models.” In: Proceedings of the Summer Computer Simulation
Conference (SCSC'03), Montreal, Canada, July 20 - 24, 2003,
Paper SO90, 6 pages.
[31]
Nechval,
K.N., Nechval, N.A., Kopytov, E.A.,Vasermanis, E.K., Rozevskis, U.
(2002). “Shortest-length confidence intervals and hypotheses testing for
system availability”. In: Proceedings of the International HMS’2002
Conference (edited by Agostino G. Bruzzone, Yuri Merkuryev, Roberto
Mosca), Bergeggi, Italy, October 3-5, 2002, pp. 112-121.
[32]
Nechval,
N.A., Nechval, K.N. and Vasermanis, E.K. (2002). “Finding sampling
distributions and reliability estimation for truncated laws”. In:
Proceedings of the 30th International Conference on Computers
and Industrial Engineering,
Tinos Island, Greece, June 29 – July 1, 2002, Vol. II, pp. 653-658.
[33]
Nechval,
K.N., Nechval, N.A. and Vasermanis, E.K., (2002). “Shortest-length
confidence intervals for system reliability”. In: Proceedings of the
30th International Conference on Computers and Industrial
Engineering, Tinos Island, Greece, June 29 – July 1, 2002, Vol.II,
pp. 647-652.
[34] Nechval,
K.N., Nechval, N.A. and Vasermanis, E.K. (2002). “Change recognition in
a model structure of noisy autoregressive process”. In: Proceedings
of the 6th International Symposium on Digital Signal
Processing for Communications Systems (DSPCS’2002), Sydney-Manly,
Australia, 28-31 January 2002, pp. 183-187.
[35]
Nechval,
N.A., Nechval, K.N. and Vasermanis, E.K. (2002). “Change point detection
in a sequence of recognized images”. In: Proceedings of the 6th
International Symposium on Digital Signal Processing for Communications
Systems (DSPCS’2002), Sydney-Manly, Australia, 28-31 January 2002,
pp. 171-176.
[36]
Nechval,
N.A., Nechval, K.N. and Vasermanis, E.K. (2001). “Invariant embedding
technique and its applications to statistical decision making.” In:
Proceedings of the Second World Congress of Latvian Scientists,
Riga, Latvia, 14-15 August 2001, p. 578-583.
[37]
Nechval,
K.N., Nechval, N.A. and Vasermanis, E.K. (2001). “Technique for
obtaining prediction intervals with a minimum length property.” In:
Proceedings of the Second World Congress of Latvian Scientists,
Riga, Latvia, 14-15 August 2001, p. 572-577.
[38]
Nechval,
K.N., Nechval, N.A. and Vasermanis, E.K. (2001). “Unbiasedness
equivalence principle and its applications to finding sampling
distributions for truncated laws.” In: Proceedings of the Second
World Congress of Latvian Scientists, Riga, Latvia, 14-15 August
2001, p. 339-344.
[39]
Nechval,
K.N., Nechval, N.A. and Vasermanis, E.K. (2001). “Inventory investment
decisions and risk.” In: Proceedings of the International Conference
on Transformation of Economic and Social Relations, Riga, Latvia,
30-31 March 2001, pp. 276-281.
[40]
Nechval,
N.A. and Nechval, K.N. (2000). “Tolerance limits in maintenance
problems”. In: Proceedings of the Nordic-Baltic Transport Research
Conference, Riga, Latvia, April 2000, Vol. II, pp. 50-54.
[41]
Nechval,
K.N. and Nechval, N.A. (2000). “Optimal policy in the case of imperfect
inspections”. In: Proceedings of the Nordic-Baltic Transport Research
Conference, Riga, Latvia, April 2000, Vol. II, pp. 47-49.
HONORS AND
AWARDS
·
Silver Medal of the Exhibition Committee in connection with research on
the problem of Prevention of Collisions between Aircraft and Birds,
Moscow, Russia, 1992.
HOBBIES
