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    政大機構典藏 > 商學院 > 統計學系 > 期刊論文 >  Item 140.119/17869
    Please use this identifier to cite or link to this item: http://nccur.lib.nccu.edu.tw/handle/140.119/17869

    Title: A Similarity Measure Based on Species Proportions
    Authors: Yue, Jack C.;Clayton M.
    Contributors: 統計系
    Date: 2005
    Issue Date: 2008-12-19 09:01:36 (UTC+8)
    Abstract: There are several indices for measuring the similarity of two populations, including the ratio of the number of shared species to the number of distinct species (Jaccard's index) and the conditional probability of observing a shared species (Smith et al., 1996). However, these indices only take into account the number of species and species proportions of shared species. In this article, we propose a new similarity index which includes the species proportions of both the shared and non shared species in each population, and also propose a Nonparametric Maximum Likelihood Estimator (NPMLE) for this index. Bootstrap and delta methods are used to evaluate the standard errors of the NPMLE. Based on a loss function, we also compare a class of nonparametric estimators for the proposed index in various situations.
    Relation: Communications in Statistics - Theory and Methods , Volume 34, Issue 11, 2123-2131
    Data Type: article
    DOI 連結: http://dx.doi.org/10.1080/STA-200066418
    DOI: 10.1080/STA-200066418
    Appears in Collections:[統計學系] 期刊論文

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