Optimality of some circular balanced block designs under interference model with compound symmetry correlation

Document Type : Original Scientific Paper

Authors

1 Department of Computer Science and Statistics‎, ‎Faculty of Mathematics‎, ‎K‎. ‎N‎. ‎Toosi University of Technology‎, ‎Tehran‎, ‎Iran

2 Department of Mathematical Sciences‎, ‎Isfahan University of Technology‎, ‎Isfahan‎, ‎Iran‎

Abstract

For the interference models‎, ‎the assumption is often made that the size of the blocks (k) is not greater than the number of treatments (t)‎. ‎Typically‎, ‎it is difficult to specify optimal block designs theoretically or algorithmically when k> t. ‎In this article‎, ‎we focus on a one-sided interference model with compound symmetry correlation for the observations and obtain universally optimal block designs for both cases k≤ t and k>t. ‎We present some methods for constructing these optimal designs for various numbers of treatments and block sizes.

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Ahmed, R., Iqbal, I. and Akhtar, M. (2014). Universally optimal designs balanced for neighbor effects. Communications in Statistics-Theory and Methods, 43(16):3371–3379.
Ai, M.Y., Ge, G. and Chan, L.Y. (2007). Circular neighbor-balanced designs universally optimal for total effects. Science in China Series A: Mathematics, 50(6):821–828.
Azaïs, J.M., Bailey, R.A. and Monod, H. (1993). A catalogue of efficient neighbor-designs with border plots. Biometrics, 49(4):1252–1261.
Bailey, R.A., Cameron, P.J., Filipiak, K., Kunert, J. and Markiewicz, A. (2017). On optimality and construction of circular repeated-measurements designs. Statistica Sinica, 27(1):1–22.
Druilhet, P. (1999). Optimality of circular neighbor balanced designs. Journal of Statistical Planning and Inference, 81(1):141–152.
Fakhari-Esferizi, A. and Pooladsaz, S. (2022). Universally optimal balanced block designs for interference model. Metrika, 85(8):1049–1061.
Filipiak, K. and Markiewicz, A. (2003). Optimality of circular neighbor balanced designs under mixed effects model. Statistics and Probability Letters, 61(3):225–234.
Filipiak, K. and Markiewicz, A. (2005). Optimality and efficiency of circular neighbor balanced designs for correlated observations. Metrika, 61:17–27.
Filipiak, K. and Markiewicz, A. (2007). Optimal designs for a mixed interference model. Metrika, 65:369–386.
Filipiak, K. and Markiewicz, A. (2012). On universal optimality of circular weakly neighbor balanced designs under an interference model. Communications in Statistics-Theory and Methods, 41(13-14):2356–2366.
Filipiak, K., Mateusz, J. and Daniel, K. (2023). Testing independence under a block compound symmetry covariance structure. Statistical Papers, 64(2):677–704.
Kempton, R.A. and Lockwood, G. (1984). Inter-plot competition in variety trials of field beans (Vicia faba L.). The Journal of Agricultural Science, 103(2):293–302.
Khodsiani, R. and Pooladsaz, S. (2022). Optimality of circular equineighbored block designs under correlated observations. Statistical Papers, 63(6):1743–1755.
Kiefer, J. (1975). Construction and optimality of generalized Youden designs II. A Survey of Statistical Designs and Linear Models, 333–353.
Kim, J., Gaurab, B. and Rabindra, N. (2021). Robust first-order efficient designs invariably applicable for many lifetime distributions. Journal of Econometrics and Statistics, 1(2):103–120.
Kushner, H.B. (1997). Optimal repeated measurements designs: the linear optimality equations. The Annals of Statistics, 25(6):2328–2344.
Li, K., Zheng, W. and Ai, M. (2015). Optimal designs for the proportional interference model. The Annals of Statistics, 43(4):1596–1616.
Shah, K.R. and Sinha, B.K. (1989). Theory of Optimal Designs. New York: Springer-Verlag.
Smith, A., Jones, B. and Davis, C. (2017). The effects of compound symmetry on data analysis. Journal of Applied Statistics, 45(3):456–468.
Rees, D.H. (1967). Some designs of use in serology. Biometrics, 23(4):779–791.