Statistical sequential hypotheses testing on para meters of probability distributions of random binary data

Abstract

An important mathematical problem of computer data analysis – the problem of statistical sequential testing of simple hypotheses on parameters of probability distributions of observed binary data – is considered in the paper. This problem is being solved for two models of observation: for independent observations and for homogeneous Markov chains. Explicit expressions of the sequential tests statistics are derived, transparent for interpretation and convenient for computer realisation. An approach is developed to calculate the performance characteristics – error probabilities and mathematical expectations of the random number of observations required to guarantee the requested accuracy for decision rules. Asymptotic expansions for the mentioned performance characteristics are constructed under «contamination» of the probability distributions of observed data.

Author Biography

Alexey Yu. Kharin, Belarusian State University, Niezaliežnasci Avenue, 4, 220030, Minsk, Belarus

doctor of science (physics and mathematics), docent; head of the department of probability theory and mathematical statistics, faculty of applied mathematics and computer science

References

  1. Mukhopadhyay N, de Silva B. Sequential methods and their applications. Boca Raton: CRC Press; 2009. 409 p.
  2. Lai TL. Sequential analysis: some classical problems and new challenges. Statistica Sinica. 2001;11:303–408.
  3. Wald A. Sequential analysis. New York: John Wiley and Sons; 1947. 212 p.
  4. Aivazian SA. Comparison of optimal properties of the tests of Neyman – Pearson and Wald. Teoriya veroyatnostei i ee primeneniya. 1959;4(1):86–93. Russian.
  5. Huber PJ, Ronchetti EM. Robust statistics. New York: Wiley; 2009. 354 p.
  6. Maevskii VV, Kharin YuS. Robust regressive forecasting under functional distortions in a model. Automation and Remote Control. 2002;63(11):1803–1820. DOI: 10.1023/A:1020959432568.
  7. Kemeny JG, Snell JL. Finite Markov Chains. New York: D. Van Nostrand Co.; 1960. 210 p.
  8. Kharin AY. Robastnost’ baiesovskikh i posledovatel’nykh statisticheskikh reshayushchikh pravil [Robustness of Bayesian and sequential statistical decision rules]. Minsk: Belarusian State University; 2013. 207 p. Russian.
  9. Kharin A, Tu TT. Performance and robustness analysis of sequential hypotheses testing for time series with trend. Austrian Journal of Statistics. 2017;46(3–4):23–36. DOI: 10.17713/ajs.v46i3-4.668.
  10. Tu TT, Kharin AY. Sequential probability ratio test for many simple hypotheses on parameters of time series with trend. Journal of the Belarusian State University. Mathematics and Informatics. 2019;1:35–45. DOI: 10.33581/2520-6508-2019-1-35-45.
  11. Kharin AY. An approach to asymptotic robustness analysis of sequential tests for composite parametric hypotheses. Journal of Mathematical Sciences. 2017;227(2):196–203. DOI: 10.1007/s10958-017-3585-z.
  12. Kharin AY, Tu TT. On error probability calculation for the truncated sequential probability ratio test. Journal of the Belarusian State University. Mathematics and Informatics. 2018;2018(1):68–76. Russian.
Published
2021-08-05
Keywords: random binary data, simple hypotheses, statistical sequential test, error probability, mathematical expectation of the random number of observations, «contamination», asymptotic expansions
Supporting Agencies This work was supported by Ministry of Education of the Republic of Belarus within the state research program «Convergence-2025».
How to Cite
Kharin, A. Y. (2021). Statistical sequential hypotheses testing on para meters of probability distributions of random binary data. Journal of the Belarusian State University. Mathematics and Informatics, 2, 60-66. https://doi.org/10.33581/2520-6508-2021-2-60-66
Section
Probability Theory and Mathematical Statistics