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Artificial Intelligence and Soft Computing: Behavioral ... - Arteimi.info

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23<br />

Case Study I:<br />

Building a System<br />

for Criminal<br />

Investigation<br />

A new hierarchical scheme for criminal investigation, based on multi-sensory<br />

data including voice, fingerprint, facial image <strong>and</strong> incidental description, has<br />

been outlined in this chapter. The proposed system first attempts to classify a<br />

given fingerprint of a suspect into any of the six typical classes <strong>and</strong> then<br />

determines the fingerprint that matches best under the class. In case the<br />

fingerprint matching fails, an automated scheme for matching facial images is<br />

called for. On successful match, the suspect could be identified. In case the<br />

matching results in poor performance, the speaker identification scheme that<br />

works with phoneme analysis is utilized. When no conclusion about the<br />

suspect could be detected by voice, incidental description is used as the<br />

resource for criminal investigation. The incidental description based model is<br />

realized on a Petri net that can h<strong>and</strong>le imprecision <strong>and</strong> inconsistency of data<br />

<strong>and</strong> uncertainty of knowledge about the criminology problem.

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