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CSAFE forensicstats
Приєднався 22 тра 2017
Forensic science and technology continues to advance and evolve, and the Center for Statistics and Applications in Forensic Evidence (CSAFE) researchers are working with forensic scientists and others in the community to create training and education programs that address these changes. This channel provides access to Center Wide Meeting webinar presentations given by the CSAFE team, who work to build a statistically sound and scientifically solid foundation for the analysis and interpretation of forensic evidence.
Відео
The ASCLD Forensic Research Committee and You: A Collaboration Worth Investigating
Переглядів 90Рік тому
The ASCLD Forensic Research Committee and You: A Collaboration Worth Investigating
Statistical Thinking for Forensic Practitioners - Session 4 (Fall 2022)
Переглядів 144Рік тому
Statistical Thinking for Forensic Practitioners - Session 4 (Fall 2022)
Statistical Thinking for Forensic Practitioners - Session 3 (Fall 2022)
Переглядів 1752 роки тому
Statistical Thinking for Forensic Practitioners - Session 3 (Fall 2022)
Statistical Thinking for Forensic Practitioners - Session 2 (Fall 2022)
Переглядів 2022 роки тому
Statistical ideas such as sampling, point and interval estimation of population quantities, and hypothesis testing have direct application in forensic science. In this session, we start from fundamental ideas about variability (and its sources) in measurements used in forensic analysis, and discuss methods to ameliorate, quantify, model, and interpret variation and uncertainty in the evaluation...
handwriter: A Demonstration and Update on CSAFE Handwriting Analysis
Переглядів 5412 роки тому
Forensic handwriting analysis relies on the principle of individuality: no two writers produce identical writing, and given enough quality and quantity of writing, it is possible to infer whether two documents were written by the same person. Forensic handwriting analysis is carried out by examiners trained to find subtle differences and similarities between a questioned document and a referenc...
Statistical Thinking for Forensic Practitioners - Session 1 (Fall 2022)
Переглядів 5392 роки тому
Probability Concepts and their Relevance to Forensic Science Probability is the mathematical language of uncertainty. Probabilities are used to describe the frequency or likelihood of events or to characterize measurement uncertainty. In this first session, we introduce the laws of probability and their application in forensic settings. Specific topics include: - Definition and interpretation o...
Machine Learning for Forensic Practitioners - Session 3
Переглядів 732 роки тому
Machine Learning for Forensic Practitioners - Session 3
Tutorial on Likelihood Ratios with Applications in Digital Forensics
Переглядів 2172 роки тому
Tutorial on Likelihood Ratios with Applications in Digital Forensics
Machine Learning for Forensic Practitioners - Session 2
Переглядів 1212 роки тому
Dr. Heike Hofmann provides an overview of machine learning and how it applies to forensic evidence. We will introduce attendees to the basics of supervised learning algorithms in the context of forensic applications while emphasizing classification trees, random forests, and neural networks. We will address some limitations of Machine Learning algorithms and introduce methods for assessing thei...
Machine Learning for Forensic Practitioners - Session 1
Переглядів 3972 роки тому
Dr. Heike Hofmann provides an overview of machine learning and how it applies to forensic evidence. We will introduce attendees to the basics of supervised learning algorithms in the context of forensic applications while emphasizing classification trees, random forests, and neural networks. We will address some limitations of Machine Learning algorithms and introduce methods for assessing thei...
Ensemble SLRs for Forensic Evidence Comparison
Переглядів 1172 роки тому
To strengthen the statistical foundations of forensic evidence interpretation, likelihood ratios and Bayes factors are advocated to quantify the value of evidence. Both methods rely on formulating a statistical model, which can be challenging for complex evidence. Machine learning score-based likelihood ratios have been proposed as an alternative in those cases. Under this framework, a (dis)sim...
Blind Testing in Firearms Examination: Preliminary Results, Benefits, Limitations, Future Directions
Переглядів 1532 роки тому
Open proficiency tests created by external vendors are used to meet accreditation requirements and demonstrate examiner competence; however, the tests are limited in the ability to monitor the entire quality management system from evidence submission to reporting of results. As such, many scholars have considered blind proficiency testing to be a more precise testing an individual’s accuracy (1...
Extracting Case-Specific Data from Validation Studies
Переглядів 1412 роки тому
The legal and scientific communities agree that any forensic method or algorithm should undergo validation testing before it is relied upon in the judicial system to make life-altering decisions. Validation results are often summarized using average error rates. Given that method performance can vary due to factors like the quantity, quality, and complexity of the questioned impression or sampl...
Shining a Light on Black Box Studies
Переглядів 2362 роки тому
The American criminal justice system heavily relies on conclusions reached by the forensic science community. In the last ten years, there has been an increased interest in assessing the validity of the methods used to reach such conclusions. For pattern comparison disciplines, however, this can be difficult because the methods employed rely on visual examinations and subjective determinations....
Sampling for Forensic Practitioners Session 3 - Spring 2022
Переглядів 1162 роки тому
Sampling for Forensic Practitioners Session 3 - Spring 2022
Sampling for Forensic Practitioners Session 2 - Spring 2022
Переглядів 752 роки тому
Sampling for Forensic Practitioners Session 2 - Spring 2022
Sampling for Forensic Practitioners Session 1 - Spring 2022
Переглядів 1762 роки тому
Sampling for Forensic Practitioners Session 1 - Spring 2022
Modeling And iNventory of Tread Impression System (MANTIS): The development, deployment and applicat
Переглядів 732 роки тому
Modeling And iNventory of Tread Impression System (MANTIS): The development, deployment and applicat
Improving Forensic Decision Making: a Human-Cognitive Perspective
Переглядів 8402 роки тому
Improving Forensic Decision Making: a Human-Cognitive Perspective
Using Mixture Models to Examine Group Differences
Переглядів 672 роки тому
Using Mixture Models to Examine Group Differences
Bloodstain Pattern Analysis Black Box Study
Переглядів 8283 роки тому
Bloodstain Pattern Analysis Black Box Study
Sampling for Forensic Practitioners - Session One
Переглядів 1453 роки тому
Sampling for Forensic Practitioners - Session One
A Survey of Fingerprint Examiners' Attitudes towards Probabilistic Reporting
Переглядів 3593 роки тому
A Survey of Fingerprint Examiners' Attitudes towards Probabilistic Reporting
EviHunter: An Android Application Forensic Artifacts Database
Переглядів 1173 роки тому
EviHunter: An Android Application Forensic Artifacts Database
Statistical Methods for the Forensic Analysis of Geolocated Event Data
Переглядів 643 роки тому
Statistical Methods for the Forensic Analysis of Geolocated Event Data
Statistical Models for the Generation and Interpretation of Footwear Impression Evidence
Переглядів 613 роки тому
Statistical Models for the Generation and Interpretation of Footwear Impression Evidence
A Clustering Method for Graphical Handwriting Components and Statistical Writership Analysis
Переглядів 923 роки тому
A Clustering Method for Graphical Handwriting Components and Statistical Writership Analysis
Statistical Methods for Bloodstain Pattern Analysis
Переглядів 3713 роки тому
Statistical Methods for Bloodstain Pattern Analysis
Psychometric Analysis of Forensic Examiner Behavior
Переглядів 733 роки тому
Psychometric Analysis of Forensic Examiner Behavior