-
作者:STEPNIAK, C
摘要:Comparison of some normal experiments involving intraclass and interclass correlation is reduced to comparison of one-way random normal experiments. In consequence, the main result in Shaked and Tong is generalized and completed.
-
作者:BERTI, P; RIGO, P
摘要:Formal posteriors for improper priors are investigated in connection with coherence, both in the sense of Regazzini and of Heath and Sudderth. Those priors pi which are linked with the improper prior gamma by the relation pi(B) = 0 whenever gamma(B) < +infinity are studied in particular. Moreover, a characterization of the inferences which are coherent according to Heath and Sudderth is found, and several examples, exhibiting several phenomena, are given.
-
作者:CIFARELLI, DM; REGAZZINI, E
-
作者:GHOSH, JK; SEN, PK; MUKERJEE, R
作者单位:University of North Carolina; University of North Carolina Chapel Hill; Indian Institute of Management (IIM System); Indian Institute of Management Calcutta
摘要:Motivated by the first-order Pitman closeness of best asymptotically normal estimators and some recent developments on higher-order asymptotic efficiency of estimators, a second-order asymptotic theory is developed for comparison of estimators under the Pitman closeness criterion, covering both the cases without and with nuisance parameters. The notion of second-order Pitman admissibility is also developed.
-
作者:NEUHAUSER, C
摘要:We construct a statistical test for a sequence alignment problem which enables us to decide whether two given sequences are related. Such a test can be used in DNA and protein sequence comparisons. It is based on a comparison of two long sequences of i.i.d. letters taken from a finite alphabet. The test statistic typically employed is the length of the longest matching region between the two sequences in which a certain number of insertions and deletions but no mismatches are allowed. We give ...
-
作者:CHANG, IS; HSIUNG, CA
作者单位:Academia Sinica - Taiwan
摘要:Proportional hazards models with stochastic baseline hazards and estimators of the relative risk coefficient in these models were proposed by Prentice, Williams and Peterson and by Chang and Hsiung in medical and industrial contexts. The form of the estimating functions recommended varies according to the form of the unknown stochastic baseline hazards. This paper examines the same estimation problem in the context of large-sample theory. It is shown that the proposed estimators are regular, a...
-
作者:HUANG, YP; ZHANG, CH
作者单位:Rutgers University System; Rutgers University New Brunswick
摘要:We study the nonparametric maximum likelihood estimator (NPMLE) for a concave distribution function F and its decreasing density f based on right-censored data. Without the concavity constraint, the NPMLE of F is the product-limit estimator proposed by Kaplan and Meier. If there is no censoring, the NPMLE of f, derived by Grenander, is the left derivative of the least concave majorant of the empirical distribution function, and its local and global behavior was investigated, respectively, by P...
-
作者:JING, BY; ROBINSON, J
摘要:The Lugannani and Rice formula for tail areas in the univariate case has recently been extended to tail areas for marginal distributions and for conditional distributions in certain multivariate settings. However, the results on relative order of errors are given only formally or under the strong continuity assumptions necessary to obtain density approximations. This paper attempts to give a unified treatment of these results for smooth transformations of multivariate means under weaker condit...