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Forensic Statistics

Source Camera Identification with Multi-Camera Smartphones

November 29, 2023 / / ,
An overview of source camera identification on multi-camera smartphones, and introduction to the new CSAFE multi-camera smartphone image database, and a summary of recent results on the iPhone 14 Pro’s.
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An alternative statistical framework for measuring proficiency

November 28, 2023 / / ,
Item Response Theory, a class of statistical methods used prominently in educational testing, can be used to measure LPE proficiency in annual tests or research studies, while simultaneously accounting for
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Examiner variability in pattern evidence: proficiency, inconclusive tendency, and reporting styles

November 28, 2023 / / ,
The current approach to characterizing uncertainty in pattern evidence disciplines has focused on error rate studies, which provide aggregated error rates over many examiners and pieces of evidence. However, decisions
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Statistical Interpretation and Reporting of Fingerprint Evidence: FRStat Introduction and Overview

November 28, 2023 / , / , ,
The FRStat is a tool designed to help quantify the strength of fingerprint evidence. Following lengthy development and validation with assistance from CSAFE and NIST, in 2017 the FRStat was
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A Gentle Introduction to the Likelihood Ratio: Basic Ideas, Implementation, and Limitations

November 27, 2023 / /
The workshop focuses on the likelihood ratio (LR) approach in forensic science. The LR, a one-number summary, quantifies how well the observations/results are explained by the prosecution’s versus the defense’s
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Shoeprint Alignment and Comparison using Maximum Cliques

November 27, 2023 / / ,
This presentation is from the 107th International Association for Identification (IAI) Annual Educational Conference, National Harbor, Maryland, August 20-26, 2023. Posted with permission of CSAFE.
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An algorithm for source identification of footwear impressions—its application on pristine shoeprints and crime-scene like shoeprints

November 27, 2023 / / ,
This presentation is from the 107th International Association for Identification (IAI) Annual Educational Conference, National Harbor, Maryland, August 20-26, 2023. Posted with permission of CSAFE.
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Diagnostic Tools for Automatic Cartridge Case Comparisons

November 27, 2023 / / ,
The following was presented at the Association of Firearm and Tool Mark Examiners (AFTE) 2023, Austin, Texas, May 21-26, 2023. Copyright 2023, The Authors. Posted with permission of CSAFE.
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Algorithmic assessment of striation similarity between wire cuts

November 27, 2023 / /
The following was presented at the Association of Firearm and Tool Mark Examiners (AFTE) 2023, Austin, Texas, May 21-26, 2023. Copyright 2023, The Authors. Posted with permission of CSAFE.
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Variations and Extensions of Information Leakage Metrics with Applications to Privacy Problems with Imperfect Statistical Information

November 17, 2023 / , / ,
The conventional information leakage metrics assume that an adversary has complete knowledge of the distribution of the mechanism used to disclose information correlated with the sensitive attributes of a system.
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