Semi-automatic Acquisition of Lexical Resources and Grammars for Event Extraction in Bulgarian and Czech

摘要

In this paper we present a semi-automatic approach for acqusition of lexico-syntactic knowledge for event extraction in two Slavic languages, namely Bulgarian and Czech. The method uses several weakly-supervised and unsupervised algorithms, based on distributional semantics. Moreover, an intervention from a language expert is envisaged on different steps in the learning procedure, which increases its accuracy, with respect to unsupervised methods for lexical and grammar learning.