Porting an Open Information Extraction System from English to German
TL
TL;DR
This paper presents a straightforward approach for adapting PropS, a rule-based predicate-argument analysis for English, to a new language, German, and obtains an Open IE system for German covering 89% of the English rule set.
Abstract
Many downstream NLP tasks can benefit from Open Information Extraction (Open IE) as a semantic representation. While Open IE systems are available for English, many other languages lack such tools. In this paper, we present a straightforward approach for adapting PropS, a rule-based predicate-argument analysis for English, to a new language, German. With this approach, we quickly obtain an Open IE system for German covering 89% of the English rule set. It yields 1.6 extractions per sentence with 60% precision, making it readily usable in downstream applications.
References27 items
1
C4Corpus: Multilingual Web-size Corpus with Free License
2
Universal Dependencies v1: A Multilingual Treebank Collection
3
Getting More Out Of Syntax with PropS
4
Multilingual Open Information Extraction
5