对概率比率方法进行预选的效应,用于对源问题进行法医识别
Dylan Borchert1, Semhar Michael1, Andrew Simpson1
1South Dakota State University, Department of Mathematics and Statistics, Brookings, SD, United States.
Forensic science international. Synergy
|November 25, 2024
概括
在法医科学中,源预选在已知子群结构时准确地赋予证据价值. 对预选方法的透明报告对于可靠的法医分析至关重要.
科学领域:
- 法医科学 法医科学 法医科学
- 统计分析 统计分析
- 证据评估 证据评估
背景情况:
- 源预选选择痕迹证据样本来代表背景人口.
- 这个过程有助于使用概率比率或贝叶斯因子来赋予证据价值.
- 预先选可以减轻替代源种群中的子种群结构影响.
研究的目的:
- 检查源预先选对证据价值赋值的影响.
- 在存在子群结构的情况下评估预先查的有效性.
主要方法:
- 使用合成和现实世界的数据进行了广泛的模拟.
- 包括微量元素分析和指纹评分的例子.
- 评估证据的价值分配,有或没有预先选.
主要成果:
- 当分群结构已知时,预先选准确地赋予证据价值.
- 模拟证明了在特定场景中预先选的可靠性.
- 有效性取决于预选方法及其水平.
结论:
- 源预先选可以成为法医证据评估中的一个有益的方法.
- 报告预先选方法和水平的透明度至关重要.
- 准确的证据评估依赖于理解和报告预先选协议.
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