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Forensic Statistics

Towards a likelihood ratio approach for bloodstain pattern analysis

In this work, we explore the application of likelihood ratio as a forensic evidence assessment tool to evaluate the causal mechanism of a bloodstain pattern. It is assumed that there
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An Open-Source Implementation of the CMPS Algorithm for Assessing Similarity of Bullets

In this paper, we introduce the R package cmpsR, an open-source implementation of the Congruent Matching Profile Segments (CMPS) method developed at the National Institute of Standards and Technology (NIST)
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Error Rate Methods for Forensic Handwriting Identification

Presentation is from the 106th International Association for Identification (IAI) Annual Educational Conference
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Measuring Proficiency among Latent Print Examiners: A Statistical Approach from Standardized Testing

This presentation is from the 74th Annual Scientific Conference of the American Academy of Forensic Sciences
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Ensemble of SLR systems for forensic evidence

Machine learning-based Score Likelihood Ratios have been proposed as an alternative to traditional Likelihood Ratio and Bayes Factor to quantify the value of forensic evidence. Scores allow formulating comparisons using
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Likelihood Ratios for Categorical Evidence with Applications to Digital Forensics

In forensic investigations, the goal of evidence evaluation is often to address source-/identity-based questions in which the evidence consists of two sets of observations: one from an unknown source tied
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Center for Statistics and Application in Forensic Evidence Update

The information below highlights a sample of current research initiatives led by the CSAFE team. Additional accomplishments in other forensic science disciplines will be discussed in subsequent issues of Forensic
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Reliability for Binary and Ordinal Data in Forensics

Forensics studies of feature-based comparison decisions typically focus on the accuracy and reliability the decisions. Decisions can be reports in the form of binary conclusions (value / no value) or
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The ASCLD Forensic Research Committee and You: A Collaboration Worth Investigating

This CSAFE webinar was held on November 17, 2022. Presenter: Henry Maynard Committee Chair, ASCLD Forensic Research Committee Chief Scientist in the Office of the Chief Scientist, Defense Forensic Science
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handwriter: a Demonstration and Update on CSAFE Handwriting Analysis

This CSAFE webinar was held on October 18, 2022. Presenters: Alicia Carriquiry Director, CSAFE Distinguished Professor and President’s Chair, Department of Statistics – Iowa State University Stephanie Reinders Research Scientist,
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