Methodology for Building Extraction Templates for Russian Language in Knowledge-Based IE Systems

 Methodology for Building Extraction Templates for Russian Language in Knowledge-Based IE Systems. Valery Solovyev, Vladimir Ivanov, Rinat Gareev, Sergey Serebryakov, Natalia Vassilieva HP Laboratories HPL-2012-211 event extraction; dictionaries; rules; patterns; meaning-text model; Chomsky grammars In this technical report we describe methodology for building information extraction (IE) rules. Rules are usually developed by experts and are widely used in knowledge-based IE systems. They consist of two parts: the left-hand side (LHS) of a rule is a template that matches a certain syntactico-semantic structure (SSS) and the right-hand side is an action that is executed when LHS template is matched against a particular text fragment. In the report we describe the process of building a more complex LHS part (template). This methodology was used for developing the information extraction system that extracts business events from news articles written in Russian language. External Posting Date: October 6, 2012 [Fulltext] Approved for External Publication Internal Posting Date: October 6, 2012 [Fulltext] Copyright 2012 Hewlett-Packard Development Company, L.P. Methodology for Building Extraction Templates for Russian Language in Knowledge-Based IE Systems Valery Solovyev Kazan Federal University Kazan, Russia [email protected] Vladimir Ivanov Kazan Federal University Kazan, Russia [email protected] Rinat Gareev Kazan Federal University Kazan, Russia [email protected] Sergey Serebryakov Hewlett-Packard Laboratories Saint-Petersburg, Russia [email protected] Natalia Vassilieva Hewlett-Packard Laboratories Saint-Petersburg, Russia [email protected]