Estimating Products in Forensic Identification Using DNA Profiles
作者:
DavidJ. Balding,
期刊:
Journal of the American Statistical Association
(Taylor Available online 1995)
卷期:
Volume 90,
issue 431
页码: 839-844
ISSN:0162-1459
年代: 1995
DOI:10.1080/01621459.1995.10476582
出版商: Taylor & Francis Group
关键词: DNA profiles;Forensic identification;Interval estimation;Reliability;Weight of evidence
数据来源: Taylor
摘要:
In many areas, such as reliability and forensic identification, it is of interest to estimate a product of unknown parameters, each of which is estimated from test data. The maximum likelihood estimator usually used in both applications is approximately unbiased but has an asymmetric sampling distribution, particularly when the sample size is not large. Consequently, most estimates understate the parameter value, often substantially, and this may be a serious drawback if “overoptimism” is highly undesirable. Further, widely used methods of interval estimation based on confidence limits suffer from a range of theoretical and computational problems. Alternative methods of estimation are developed and discussed, based on frequentist, Bayesian, and likelihood approaches.
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