disputed3: disputed Bayesian Networks

In bnRep: A Repository of Bayesian Networks from the Academic Literature

disputed Bayesian Networks

Description

A template Bayesian network for combining forensic evidence on an item with an uncertain relation to the disputed activities.

Format

A discrete Bayesian network for the evaluation of transfer evidence given activity level propositions considering a dispute about the relation of an item to one or more activities (Figure 9). The probabilities were given in the referenced paper. The vertices are:

BGFibers

Background fibers present on Y top (false, true);

BGM

Background fibers matching sweater present on Y top (false, true);

BGMnotM

Background fibers not matching sweater present on Y top (false, true);

C52

Fibers matching Y top on sweater (false, true);

C61

Background of fibers matching Y top on sweater (false, true);

C7

Background DNA u on sweater (false, true);

CaseFindSweater

Case findings on sweater (false, true);

DNAfind

DNA findings on sweater (DNA X, DNA U, DNA X + U, No DNA);

DNAU

DNA U present on sweater (false, true);

DNAX

DNA X present on sweater (false, true);

FiberfindSweater

Fiber findings on Sweater (false, true);

FiberfindYtop

Fiber findings on Y top (matching, not matching, both matching and not matching, no fibers);

FibersM

Fibers matching sweater on Y top (false, true);

FibresnotM

Fibers not matching sweater on Y top (false, true);

Prop

Who strangled person Y? (H1, H2);

Sworn

Sweater worn by offender during incident (false, true);

TPRaltactX

Transfer of DNA X from X to sweater via X wearing sweater two weekd before incident (false, true);

TPRStoY

Transfer of fibers from sweater to Y top during incident (false, true);

TPRUstrangledY

Transfer of DNA U from U to sweater via U strangling Y (false, true);

TPRUtoY

Transfer of fibers from unknown garment to Y top during incdient (false, true);

TPRXstrangledY

Transfer of DNA X from X to sweater via X strangling Y (false, true);

TPRYtoS

Transfer of fibers from Y top to sweater during incident (false, true);

UstrangledY

Unknown person strangled person Y (false, true);

Uworn

Unknown garment worn by offender during incident (false, true);

WhichGarment

Which garment was worn by offender during incident? (sweater, unknown garment);

Xaltact

X wore sweater two weeks before incident (false, true);

XstrangledY

Mr. X strangled person Y (false, true);

Value

An object of class bn.fit. Refer to the documentation of bnlearn for details.

References

Vink, M., de Koeijer, J. A., & Sjerps, M. J. (2024). A template Bayesian network for combining forensic evidence on an item with an uncertain relation to the disputed activities. Forensic Science International: Synergy, 9, 100546.

bnRep documentation built on April 12, 2025, 1:13 a.m.