| Vol-491 Copyright © 2009 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. This volume is published by its editors.

# SemSearch 2009

### Proceedings of the Workshop on Semantic Search (SemSearch 2009) at the 18th International World Wide Web Conference (WWW 2009)

### Madrid, Spain, April 21, 2009.

Edited by

### Marko Grobelnik, Jozef Stefan Institute, Ljubljana, Slovenia
Peter Mika, Yahoo! Research, Barcelona, Spain
Thanh Tran Douc, Institute AIFB, University of Karlsruhe, Germany
Haofen Wang, Apex Data & Knowledge Management Lab, Shanghai Jiao Tong University, China

## Table of Contents

### Regular Papers

Investigating the Demand Side of Semantic Search through Query Log Analysis
Edgar Meij, Peter Mika and Hugo Zaragoza , pages 2-5

Wanderlust: Extracting Semantic Relations from Natural Language Text Using Dependency Grammar Patterns
Alan Akbik and Juergen Bross, pages 6-15

Towards ECSSE: Live Web of Data Search and Integration
Michele Catasta, Richard Cyganiak and Giovanni Tummarello, pages 16-23

Question Answering Based on Semantic Graphs
Lorand Dali, Delia Rusu, Blaž Fortuna, Dunja Mladenić and Marko Grobelnik, pages 24-30

Relevance Feedback Between Hypertext and Semantic Search
Harry Halpin and Victor Lavrenko, pages 31-40

Using TREC for Cross-comparison Between Classic IR and Ontology-based Search Models at a Web Scale
Miriam Fernandez, Vanesa Lopez, David Vallet, Pablo Castells, Enrico Motta, Marta Sabou and Victoria Uren, pages 41-50

### Posters

Semantic Search for Enterprise 2.0
Alexandre Passant, Philippe Laublet, John Breslin and Stefan Decker, pages 51-52

Improving Search Results with Lightweight Semantic Search: Discussion Paper
Marián Šimko and Maria Bielikova, pages 53-54

Story Link Detection With Entity Resolution
Tadej Štajner and Marko Grobelnik, pages 55-56

Retrieval and Ranking of Semantic Entities for Enterprise Knowledge Management Tasks
Chad Cumby, Katharina Probst and Rayid Ghani, pages 57-58

P2P Concept Search: Some Preliminary Results
Fausto Giunchiglia, Uladzimir Kharkevich and S.R.H Noori, pages 59-60

Managing Collaboration Projects using Semantic Email
MDyaa Albakour, Udo Kruschwitz, Rob Blackwell and Simon Lucas, pages 60-61

Searching and Ranking in RDF documents and Social Networks
Sibel Adali, Alvaro Graves and Konstantin Mertsalov, pages 61-62

18-Aug-2009: submitted by Peter Mika
19-Aug-2009: published on CEUR-WS.org