Estimating the number of contributors to a DNA profile using decision trees.

Forensic Science International. Genetics
Maarten KruijverJo-Anne Bright

Abstract

The interpretation of DNA profiles typically starts with an assessment of the number of contributors. In the last two decades, several methods have been proposed to assist with this assessment. We describe a relatively simple method using decision trees, that is fast to run and fully transparent to a forensic analyst. We use mixtures from the publicly available PROVEDIt dataset to demonstrate the performance of the method. We show that the performance of the method crucially depends on the performance of filters for stutter and other artefacts. We compare the performance of the decision tree method with other published methods for the same dataset.

References

Aug 16, 2003·International Journal of Legal Medicine·Thore EgelandPetter F Mostad
Sep 18, 2012·Forensic Science International. Genetics·H HanedP Gill
Jan 16, 2013·Forensic Science International. Genetics·Jo-Anne BrightJohn S Buckleton
Jan 16, 2013·Forensic Science International. Genetics·Carolyn R HillJohn M Butler
Jun 19, 2013·Forensic Science International. Genetics·Jo-Anne BrightJohn S Buckleton
Aug 21, 2013·Forensic Science International. Genetics·Duncan TaylorJohn Buckleton
Dec 18, 2013·International Journal of Legal Medicine·Torben Tvedebrink
Jul 20, 2014·Forensic Science International. Genetics·Jo-Anne BrightJohn S Buckleton
Aug 2, 2014·Forensic Science International. Genetics·Jo-Anne Bright, James M Curran
Sep 28, 2014·Forensic Science International. Genetics·Duncan TaylorJohn Buckleton
Jan 28, 2015·Forensic Science International. Genetics·Harish SwaminathanDesmond S Lun
Aug 16, 2015·Forensic Science International. Genetics·Michael D CobleJames M Curran
Oct 23, 2016·Forensic Science International. Genetics·Øyvind BlekaPeter Gill
Dec 4, 2016·Forensic Science International. Genetics·Klaas Slooten
Nov 2, 2017·Forensic Science International. Genetics·Lauren E AlfonseCatherine M Grgicak
Mar 8, 2019·Forensic Science International. Genetics·Todd BilleJo-Anne Bright
Sep 3, 2019·Forensic Science International. Genetics·Corina C G BenschopHinda Haned
Mar 15, 2020·Forensic Science International. Genetics·Klaas Slooten

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Citations

Jul 6, 2021·Forensic Science International. Genetics·Jakob ValtlCatherine M Grgicak
Jun 16, 2021·Forensic Science International. Genetics·Maarten KruijverJo-Anne Bright
Jul 21, 2021·Forensic Science International. Genetics·Catherine M GrgicakDesmond S Lun

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