Grammatical Case Based IS-A Relation Extraction with Boosting for Polish
Abstract
Pattern-based methods of IS-A relation extraction rely heavily on so called Hearst patterns. These are ways of expressing instance enumerations of a class in natural language. While these lexico-syntactic patterns prove quite useful, they may not capture all taxonomical relations expressed in text. Therefore in this paper we describe a novel method of IS-A relation extraction from patterns, which uses morpho-syntactical annotations along with grammatical case of noun phrases that constitute entities participating in IS-A relation. We also describe a method for increasing the number of extracted relations that we call pseudo-subclass boosting which has potential application in any pattern-based relation extraction method. Experiments were conducted on a corpus of about 0.5 billion web documents in Polish language.
Cite
@article{arxiv.1605.02916,
title = {Grammatical Case Based IS-A Relation Extraction with Boosting for Polish},
author = {Paweł Łoziński and Dariusz Czerski and Mieczysław A. Kłopotek},
journal= {arXiv preprint arXiv:1605.02916},
year = {2016}
}