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Discovery of role functions of persons on the basis of knowledge structures

Igor P. Kuznetsov (igor-kuz@mtu-net.ru)

Institute for Informatics Problems of the Russian Academy of Sciences, Moscow

 

Introduction

One of the primary tasks in the area of cognitive technologies is the automatic extraction of knowledge from natural language (NL) texts. It is a complex problem connected with developing linguistic processors which perform automatic formalization of texts, i.e. mapping the texts into formal models or knowledge structures. It should be noted that a lot of relevant information in NL texts is presented in a concealed form. This information is called implicit. An example is the task of assigning certain features to persons on the basis of actions performed by them. In the subject area of Criminology it is assigning such features as victim, suspect, etc. to persons. The methods of implicit information extraction should be considered in the context of the knowledge extraction task, and it is conditioned by the specific features of the linguistic processor. The given paper describes these methods within the framework of the object-oriented linguistic processor developed at the Institute for Informatics Problems of the Russian Academy of Sciences (IIPRAS).

 

Example 2. Text is taken from the summaries of incidents.

01.02.98 yr. 16-30 to the Home Office applied citizen Mitrofanov Victor Mikhaylovich, 1955 yr. bir., liv.: Bohr Highway 38-211, n/w. he stated that 01.02.98 yr. at 10-00 in house 3 at St. Fedosino the unknowns being found in the drunk state made scandal, they expressed themselves by unquotable swearing, they set dog. As a result of what Mitrofanov applied to trauma care center, where the diagnosis was set: the bite of foot.

System explanation:

 

unknowns - suspected,

since - unknowns, being in the drunk state made scandal,

they expressing themselves by unquotable swearing, they set dog

Mitrofanov Victor Mikhaylovich, 1955 r. - suffered,

since applied to OVD citizen Mitrofanov Victor Mikhaylovich, 1955 yr. birth,

since Mitrofanov applied to trauma care centre.

 

 

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