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A language modelling approach to linking criminal styles with offender characteristics

Bache, Richard ; Crestani, Fabio ; Canter, David ; Youngs, Donna

In: Data & knowledge engineering, 2010, vol. 69, no. 3, p. 303-315

The ability to infer the characteristics of offenders from their criminal behaviour (‘offender profiling’) has only been partially successful since it has relied on subjective judgments based on limited data. Words and structured data used in crime descriptions recorded by the police relate to behavioural features. Thus Language Modelling was applied to an existing police archive to link ...

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Measuring the likelihood property of scoring functions in general retrieval models

Bache, Richard ; Strathclyde, Glasgow, Scotland ; Baillie, Mark ; Glasgow, Scotland ; Crestani, Fabio ; Svizzera

In: Journal of the American society for information science and technology, 2009, vol. 60, no. 6, p. 1294-1297

Although retrieval systems based on probabilistic models will rank the objects (e.g. documents) being retrieved according to the probability of some matching criterion (e.g. relevance) they rarely yield an actual probability and the scoring function is interpreted to be purely ordinal within a given retrieval task. In this paper it is shown that some scoring functions possess the likelihood...

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