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作者：LEIGH, GM
摘要：Tagging experiments in which recaptures have to be made by professional fishermen are considered. The methods put forward are shown to be maximum likelihood solutions, and expressions are derived for the variances of the estimators. Optimal conditions for the experiment are found, and cases of questionable behaviour are identified.
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作者：YEH, L
摘要：In this paper, we develop a model of sampling plans for variables with a polynomial loss function, in which the decision function is either one-sided or two-sided. Based on a Bayesian approach, we suggest a simple finite algorithm for the determination of the optimal single sampling plan. Furthermore, for the case of a symmetric two-sided decision function, we propose an approximate method for determining its optimal single sampling plan.
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作者：HALL, P; HANNAN, EJ
摘要：We use the concepts of stochastic complexity, description length, and model selection to develop data-based methods for choosing smoothing parameters in nonparametric density estimation. In the case of histogram estimators, we derive a simple, exact formula for stochastic complexity when the prior distribution of cell probabilities is uniform over the class of all possible choices. The formula depends only on the data and the smoothing parameter, which is readily chosen according to the criter...
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作者：HALPERIN, M; LAN, KKG; HAMDY, MI
作者单位：George Washington University
摘要：An approach to multiple comparisons defines the error control objective as assuring with given probability that k or fewer out of N specific linear combinations of p means are significant when an overall null hypothesis is true, or that k or fewer confidence interval statements are incorrect. The case k=0 is basically the Scheffe (1953) method except for the consideration of a specified set of N linear combinations rather than all possible linear combinations. A theorectical result is obtained...
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作者：SMITH, SP; HAMMOND, K
摘要：A robust analysis for field data is proposed using a stratified rank regression model. That analysis follows Pettitt (1982). Alternatively, a new technique is described where residuals are log gamma random variables. The log gamma distribution is approximately normal when the shape parameter is large and this parameter is taken as an integer which is either preselected or estimated by a simple grid search. Algorithms for estimating location parameters by maximizing the likelihood based on with...
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作者：ENSOR, KB; NEWTON, HJ
作者单位：Texas A&M University System; Texas A&M University College Station
摘要：The effect of estimating the order of an autoregressive process no estimating the peak frequency is examined. For consistent order determining methods it is shown that the asymptotic results are the same as for the case when the order is known. For the order criteria which asymptotically overestimate the order, the peak frequency estimator is shown to be a consistent estimator of the true peak frequency.
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作者：LAGAKOS, SW; BARRAJ, LM; DEGRUTTOLA, V
摘要：One source of data for the induction distribution of AIDS arises from persons infected by the AIDS virus from contaminated blood transfusions. Analyses of these data are complicated because the number of individuals infected by transfusion is unknown; information is available only for those who are infected and develop AIDS within a certain chronologic time interval. The statistical problem is one of making inferences about a stochastic process of infection and disease for which realizations a...
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作者：LAGAKOS, SW
摘要：This note considers partial likelihood score tests for association between a covariate process and survival time based on a proportional hazards regression model. We derive the asymptotic efficiency of the test based on a misspecified form of the covariate process relative to the test based on the correct form. The results can be used to assess the consequences of various types of misspecification.
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作者：MIELKE, PW; BERRY, KJ
作者单位：Colorado State University System; Colorado State University Fort Collins
摘要：Cumulant methods for analysing the independence of r-way contingency tables and goodness-of-fit frequency data are presented. These methods are based on the exact first three cumulants of both the classical Pearson chi-squared statistic and a recent advantageous modification of this statistic. These approximate methods provide major distributional improvements over existing asymptotic methods.
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作者：RYAN, LM; ORAV, EJ
摘要：Consider a three-state compartmental model with an initial, an absorbing and an intermediate state which may or may not be before absorption. Observable data are time to absorption and an indication of whether the intermediate state was entered, but not the time of transition. The transition rates characterizing the process are nonidentifiable without simplifying assumptions or additional information on the prevalence function, defined as the time specific proportion of nonabsorbed individuals...
