Measuring the validity and reliability of forensic likelihood-ratio systems

被引：123
作者：
Morrison, Geoffrey Stewart [1 ]
机构：
[1] Univ New S Wales, Forens Voice Comparison Lab, Sch Elect Engn & Telecommun, UNSW Sydney, Sydney, NSW 2052, Australia
来源：
SCIENCE & JUSTICE | 2011年 / 51卷 / 03期
关键词：
Forensic; Likelihood ratio; Validity; Reliability; Accuracy; Precision;
D O I：
10.1016/j.scijus.2011.03.002
中图分类号：
DF [法律]; D9 [法律]; R [医药、卫生];
学科分类号：
0301 ; 10 ;
摘要：
There has been a great deal of concern recently about validity and reliability in forensic science. This paper reviews for a broad target audience metrics of validity and reliability (accuracy and precision) which have been applied in forensic voice comparison and which are potentially applicable in other branches of forensic science. The metric of validity is the log likelihood-ratio cost (C-llr), and the metric of reliability is an empirical estimate of credible intervals. A revised procedure for the calculation of credible intervals is introduced. (C) 2011 Forensic Science Society. Published by Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码：91 / 98
页数：8
相关论文
共 35 条
[11]   Assessing uncertainty in DNA evidence caused by sampling effects [J].
Curran, JM ;
Buckleton, JS ;
Triggs, CM ;
Weir, BS .
SCIENCE & JUSTICE, 2002, 42 (01) :29-37
[12]  
ENZINGER E, P 39 AUD ENG SOC C A
[13]   Emulating DNA: Rigorous quantification of evidential weight in transparent and testable forensic speaker recognition [J].
Gonzalez-Rodriguez, Joaquin ;
Rose, Phil ;
Ramos, Daniel ;
Toledano, Doroteo T. ;
Ortega-Garcia, Javier .
IEEE TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING, 2007, 15 (07) :2104-2115
[14]  
Koehler JJ, 2008, HASTINGS LAW J, V59, P1077
[15]  
Law Commission of England & Wales, 2009, ADM EXP EV CRIM P EN
[16]  
Morrison GS, 2010, ODYSSEY 2010: THE SPEAKER AND LANGUAGE RECOGNITION WORKSHOP, P63
[17]   An empirical estimate of the precision of likelihood ratios from a forensic-voice-comparison system [J].
Morrison, Geoffrey Stewart ;
Zhang, Cuiling ;
Rose, Philip .
FORENSIC SCIENCE INTERNATIONAL, 2011, 208 (1-3) :59-65
[18]   A comparison of procedures for the calculation of forensic likelihood ratios from acoustic-phonetic data Multivariate kernel density (MVKD) versus Gaussian mixture model-universal background model (GMM-UBM) [J].
Morrison, Geoffrey Stewart .
SPEECH COMMUNICATION, 2011, 53 (02) :242-256
[19]   Forensic voice comparison and the paradigm shift [J].
Morrison, Geoffrey Stewart .
SCIENCE & JUSTICE, 2009, 49 (04) :298-308
[20]   Forensic: voice comparison using likelihood ratios based on polynomial curves fitted to the formant trajectories of Australian English |aI| [J].
Morrison, Geoffrey Stewart .
INTERNATIONAL JOURNAL OF SPEECH LANGUAGE AND THE LAW, 2008, 15 (02) :249-266
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