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Bayesian Networks and Probabilistic Inference in Forensic Science

ISBN: 978-0-470-09173-9
372 pages
April 2006
Bayesian Networks and Probabilistic Inference in Forensic Science (0470091738) cover image
The amount of information forensic scientists are able to offer is ever increasing, owing to vast developments in science and technology. Consequently, the complexity of evidence does not allow scientists to cope adequately with the problems it causes, or to make the required inferences. Probability theory, implemented through graphical methods, specifically Bayesian networks, offers a powerful tool to deal with this complexity, and discover valid patterns in data. Bayesian Networks and Probabilistic Inference in Forensic Science provides a unique and comprehensive introduction to the use of Bayesian networks for the evaluation of scientific evidence in forensic science.
  • Includes self-contained introductions to both Bayesian networks and probability.
  • Features implementation of the methodology using HUGIN, the leading Bayesian networks software.
  • Presents basic standard networks that can be implemented in commercially and academically available software packages, and that form the core models necessary for the reader’s own analysis of real cases.
  • Provides a technique for structuring problems and organizing uncertain data based on methods and principles of scientific reasoning.
  • Contains a method for constructing coherent and defensible arguments for the analysis and evaluation of forensic evidence.
  • Written in a lucid style, suitable for forensic scientists with minimal mathematical background.
  • Includes a foreword by David Schum.

The clear and accessible style makes this book ideal for all forensic scientists and applied statisticians working in evidence evaluation, as well as graduate students in these areas. It will also appeal to scientists, lawyers and other professionals interested in the evaluation of forensic evidence and/or Bayesian networks.

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1. The logic of uncertainty.

1.1 Uncertainty and probability.

1.2 Reasoning under uncertainty.

1.3 Frequencies and probabilities.

1.4 Induction and probability.

1.5 Further readings.

2. The logic of Bayesian networks.

2.1 Reasoning with graphical models.

2.2 Reasoning with Bayesian networks.

2.3 Further readings.

3. Evaluation of scientific evidence.

3.1 Introduction.

3.2 The value of evidence.

3.3 Relevant propositions.

3.4 Pre-assessment of the case.

3.5 Evaluation using graphical models.

4. Bayesian networks for evaluating scientific evidence.

4.1 Issues in one-trace transfer cases.

4.2 When evidence has more than one component: footwear marks evidence.

4.3 Scenarios with more than one stain.

5. DNA evidence.

5.1 DNA likelihood ratio.

5.2 Network approaches to the DNA likelihood ratio.

5.3 Missing suspect.

5.4 Analysis when the alternative proposition is that a sibling of the suspect left the stain.

5.5 Interpretation with more than two propositions.

5.6 Evaluation of evidence with more than two propositions.

5.7 Partial matches.

5.8 Mixtures.

5.9 Relatedness testing.

5.10 Database search.

5.11 Error rates.

5.12 Sub-population and co-ancestry coefficient.

5.13 Further reading.

6. Transfer evidence.

6.1 Assessment of transfer evidence under crime level propositions.

6.2 Assessment of transfer evidence under activity level propositions.

6.3 Cross- or two-way transfer of evidential material.

6.4 Increasing the level of detail of selected nodes.

6.5 Missing evidence.

7. Aspects of the combination of evidence.

7.1 Introduction.

7.2 A difficulty in combining evidence.

7.3 The likelihood ratio and the combination of evidence.

7.4 Combination of distinct items of evidence.

8. Pre-assessment.

8.1 Introduction.

8.2 Pre-assessment.

8.3 Pre-assessment for a fibres scenario.

8.4 Pre-assessment in a cross-transfer scenario.

8.5 Pre-assessment with multiple propositions.

8.6 Remarks.

9. Qualitative and sensitivity analyses.

9.1 Qualitative probability models.

9.2 Sensitivity analyses.

10. Continuous networks.

10.1 Introduction.

10.2 Samples and estimates.

10.3 Measurements.

10.4 Use of a continuous distribution which is not normal.

10.5 Appendix.

11. Further applications.

11.1 Offender profiling.

11.2 Decision making.


Author Index.

Subject Index.

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Franco Taroni  – University of Lausanne, Switzerland

Colin Aitken – University of Edinburgh, UK

Paolo Garbolino – University IUAV of Venice, Italy

Alex Biedermann – University of Lausanne and Federal Office of Police, Berne, Switzerland

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"The aim of the authors is to present a well-balanced book which introduces new knowledge and challenges for all individuals interested in the evaluation and interpretation of evidence and, more generally, the fundamental principles of the logic of scientific reasoning." (Zentralblatt Math, 2010)



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Bayesian Networks and Probabilistic Inference in Forensic Science (US $119.00)

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