排序方式： 共有11条查询结果，搜索用时 31 毫秒
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Seventh ESPE Congress and General Assembly in Budapest, 1993 相似文献
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Fourth ESPE Congress and General Assembly in Istanbul, 1990 相似文献
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Erla Sturludottir Helga Gunnlaugsdottir Olafur K. Nielsen Gunnar Stefansson 《统计学通讯:模拟与计算》2017,46(7):5808-5818
In this study, a changepoint model, which can detect either a mean shift or a trend change when accounting for autocorrelation in short time-series, was investigated with simulations and a new method is proposed. The changepoint hypotheses were tested using a likelihood ratio test. The test statistic does not follow a known distribution and depends on the length of the time-series and the autocorrelation. The results imply that it is not possible to detect autocorrelation and that the estimate of the autocorrelation parameter is biased. It is therefore recommended to use critical values from the empirical distribution for a fixed autocorrelation. 相似文献
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Warsha Singh Gudmundur Thordarson Sisira Haputhantri Gunnar Stefansson 《统计学通讯:模拟与计算》2016,45(8):2874-2887
An approach to evaluate sampling strategies to detect modes in length-distributions is presented. Distributions based on various numbers of samples (S) and sample sizes (n) were simulated from the original cod and capelin data in Icelandic waters, incorporating within sample correlations. A peak was discerned if the difference between any simulated and original distribution did not exceed a pre-specified Δ, given a probability. This was achieved with numerous combinations of S and n, and the optimal choice will depend on the sampling costs. Variance-equivalence curves also illustrate the difference between demanding precision of mean lengths versus precision of length distributions. 相似文献
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Third ESPE Congress and General Assembly in Paris, 1989 相似文献
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Second ESPE Congress and General Assembly in Mannheim, 1988 相似文献
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Sixth ESPE congress and general assembly in Gmunden, 1992 相似文献