Title

Computational Framework for Identifying Suspects in Multiple Situations

Student Classification

Senior

Faculty Mentor

Dr. Albert Esterline

Department

Criminal Justice/Computer Science

Document Type

Poster

Publication Date

Fall 2019

Abstract

We present a framework for identity that addresses how information can be evidence for identity hypotheses and how such evidence can be discounted and combined. The framework (which is computational) is built on three pillars: the situation theory of Barwise and Perry (and Devlin), the Dempster-Shafer theory of evidence, and Semantic Web standards (OWL, RDF, and the use of URIs). According to situation theory, situations support information and some (particularly utterance situations) carry information about other situations. We see a legal case investigating the identity of an agent as a constellation of situations, which provide evidence for identity hypotheses. We have developed OWL ontologies to provide concepts for encoding cases in RDF. The structure captured in these encodings allow us to apply Dempster-Shafer theory in novel ways to discount and combine levels of evidence for various hypotheses. The majority of this poster is an in-depth analysis of our new scenarios that have multiple situations.

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