Detecting Multiword Expressions by Dependency Parsing Istvn Nagy - - PowerPoint PPT Presentation

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Detecting Multiword Expressions by Dependency Parsing Istvn Nagy T. and Veronika Vincze University of Szeged, Hungary Department of Informatics PARSEME 2nd General Meeting Athens, Greece, 10-11 March 2014 Introduction Automatic

SLIDE 1

Detecting Multiword Expressions by Dependency Parsing

István Nagy T. and Veronika Vincze

University of Szeged, Hungary Department of Informatics

PARSEME 2nd General Meeting – Athens, Greece, 10-11 March 2014

SLIDE 2

Introduction

Automatic detection of MWEs by dependency

parsers in different languages

3 settings:

– English verb-particle constructions – Hungarian light verb constructions – German light verb constructions

SLIDE 3

Methods

English VPCs

Penn Treebank has VPC annotation Bohnet and Stanford parsers were trained on it Evaulated the parsers on Wiki50 corpus manually annotated for VPCs

German LVCs

TIGER corpus has LVC annotation Bohnet parser trained on TIGER Evaluated this model on the German part of JRC-Acquis manually annotated for LVCs

SLIDE 4

Methods & Results

Hungarian LVCs LVCs were manually annotated in the Szeged Treebank LVC specific dependency relations Trained and evaluated the Bohnet parser in 10-fold manner Results: The Bohnet parser performs well on all the three tasks