Abstract
This note considers the kernel estimation of a linear random field on Z 2. Instead of imposing certain mixing conditions on the random fields, it is assumed that the weights of the innovations satisfy a summability property. By building a martingale decomposition based on a suitable filtration, asymptotic normality is proven for the kernel estimator of the marginal density of the random field.
Similar content being viewed by others
References
Bradley, R.C.: Basic properties of strong mixing conditions. In: Eberlein, E., Taqqu, M.S. (eds.) Dependence in Probability and Statistics, pp. 162–192. Birkhäuser, Boston (1986)
Cheng, T.L., Ho, H.C.: Asymptotic normality for non-linear functionals of non-causal linear processes with summable weights. J. Theor. Probab. 18, 345–358 (2005)
Cheng, T.L., Ho, H.C.: Central limit theorems for instantaneous filters of linear random fields on Z 2. In: Hsiung, A.C., Ying, Z., Zhang, C.H. (eds.) Random Walks, Sequential Analysis and Related Topics—A Festschrift in Honor of Y.S. Chow, pp. 71–84. World Scientific, Singapore (2007)
Doukhan, P.: Mixing: Properties and Examples. Lecture Notes in Statistics, vol. 85. Springer, Berlin (1994)
Doukhan, P., Lang, G., Surgailis, D.: Asymptotics of weighted empirical processes of linear fields with long-range dependence. Ann. Inst. H. Poincaré 38, 879–896 (2002)
Giraitis, L., Surgailis, D.: Central limit theorem for the empirical process of a linear sequence with long memory. J. Stat. Plan. Infer. 80, 81–93 (1999)
Guyon, X.: Estimation d’un champ par pseudo-varisenmblable conditionelle: etude asymptotique et application au cas Markovien. In: Proc. 6th Franco-Belgian Meeting of Statisticians (1987)
Guyon, X.: Random Fields on a Network. Springer, Berlin (1995)
Ho, H.-C.: On central and noncentral limit theorems in density estimation for sequences of long-range dependence. Stoch. Process. Appl. 63, 153–174 (1996)
Ho, H.-C., Hsing, T.: On the asymptotic expansion of the empirical process of long-memory moving averages. Ann. Stat. 24, 992–1024 (1996)
Ho, H.-C., Hsing, T.: Limit theorems for functional of moving averages. Ann. Probab. 25, 1636–1669 (1997)
Parzen, E.: On the estimation of a probability density and the mode. Ann. Math. Stat. 33, 1965–1976 (1962)
Pham, T.D., Tran, T.T.: Some mixing properties of time series models. Stoch. Process. Appl. 19, 297–303 (1985)
Robinson, P.M.: Nonparametric estimators for time series. J. Time Ser. Anal. 4, 185–207 (1983)
Rosenblatt, M.: Remarks on some nonparametric estimates of a density function. Ann. Math. Stat. 27, 832–837 (1956)
Rosenblatt, M.: Central limit theorem for stationary processes. In: Proc. Sixth Berkeley Symp., vol. 2 pp. 551–561 (1972)
Rosenblatt, M.: Stationary Sequences and Random Fields. Birkhauser, Boston (1985)
Tran, L.T.: Kernel density estimation on random fields. J. Multivar. Anal. 34, 37–53 (1990)
Tran, L.T., Yakowitz, S.: Nearest neighbor estimators for random fields. J. Multivar. Anal. 44, 23–46 (1993)
Withers, C.S.: Conditions for linear processes to be strong mixing. Z. Wahrscheinlichkeitstheor. Verw. Geb. 57, 477–480 (1981)
Wu, W.B., Mielniczuk, J.: Kernel density estimation for linear processes. Ann. Stat. 30, 1441–1459 (2002)
Author information
Authors and Affiliations
Corresponding author
Additional information
T.-L. Cheng’s research is supported in part by NSC 94-2118-M-018-001, Taiwan. Also, he is indebted to Department of Mathematics and Statistics, University of Calgary, for their hospitality during his visit. X. Lu’s research is supported in part by NSERC Discovery Grant of Canada.
Rights and permissions
About this article
Cite this article
Cheng, TL., Ho, HC. & Lu, X. A Note on Asymptotic Normality of Kernel Estimation for Linear Random Fields on Z 2 . J Theor Probab 21, 267–286 (2008). https://doi.org/10.1007/s10959-008-0146-x
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10959-008-0146-x