Premium
The evaluation of DNA evidence in pedigrees requiring population inference
Author(s) -
Corradi Fabio,
Lago Giampietro,
Stefanini Federico M.
Publication year - 2003
Publication title -
journal of the royal statistical society: series a (statistics in society)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.103
H-Index - 84
eISSN - 1467-985X
pISSN - 0964-1998
DOI - 10.1111/1467-985x.00285
Subject(s) - directed acyclic graph , conditional independence , inference , pedigree chart , population , independence (probability theory) , set (abstract data type) , computer science , econometrics , mathematics , statistics , genetics , artificial intelligence , biology , algorithm , demography , programming language , sociology , gene
Summary. The evaluation of nuclear DNA evidence for identification purposes is performed here taking account of the uncertainty about population parameters. Graphical models are used to detail the hypotheses being debated in a trial with the aim of obtaining a directed acyclic graph. Graphs also clarify the set of evidence that contributes to population inferences and they also describe the conditional independence structure of DNA evidence. Numerical illustrations are provided by re‐examining three case‐studies taken from the literature. Our calculations of the weight of evidence differ from those given by the authors of case‐studies in that they reveal more conservative values.