| Vol-400 Copyright © 2008 for the individual papers by the papers' authors. Copying permitted for private and academic purposes. Re-publication of material from this volume requires permission by the copyright owners.

# OBIES 2008
Ontology-based Information Extraction Systems

### Proceedings of the 1st International and KI-08 Workshop on
Ontology-based Information Extraction Systems (OBIES 2008)
Kaiserslautern, Germany, September 23, 2008.

Edited by

### Benjamin Adrian *
Günter Neumann #
Alexander Troussov +
Borislav Popov $

* DFKI, Knowledge Management Department, Kaiserslautern, Germany
# DFKI, Language Technology Department, Saarbrücken, Germany
+ IBM Dublin, Center for Advanced Studies, Dublin, Ireland
$ Ontotext Lab, Semantic Technology Lab, Sofia, Bulgaria

Proceedings in a single PDF file

## Table of Contents

Preface

1. Scaling up Pattern Induction for Web Relation Extraction through Frequent Itemset Mining
   Sebastian Blohm and Philipp Cimiano
2. Ontology-based Information Extraction in Agents' Hands
   Brigitte Endres-Niggemeyer
3. Information Extraction Based on Extraction Ontologies: Design, Deployment and Evaluation
   Martin Labský, Vojtech Svátek, and Marek Nekvasil
4. Relation Validation via Textual Entailment
   Rui Wang, Günter Neumann

9-Oct-2008: submitted by B. Adrian
9-Oct-2008: published on CEUR-WS.org