| Vol-830 urn:nbn:de:0074-830-7 Copyright © 2011 for the individual papers by the papers' authors. Copying permitted only for private and academic purposes. This volume is published and copyrighted by its editor.

# SDoW2011
Social Data on the Web

### Proceedings of the 4th International Workshop on Social Data on the Web

#### In conjunction with the International Semantic Web Conference (ISWC2011)

### Bonn, Germany, October 23, 2011.

Edited by

### Alexandre Passant *
Sergio Fernández #
John Breslin *
Uldis Bojārs +

* DERI, National University of Ireland, Galway, Ireland
# Fundación CTIC, Gijón, Asturias, Spain
+ University of Latvia, Latvia

## Table of Contents

1. Pragmatic Metadata Matters: How Data about the Usage of Data Effects Semantic User Models.
   Claudia Wagner, Markus Strohmaier, Yulan He.
2. Linked Opinions: Describing Sentiments on the Structured Web of Data.
   Adam Westerski, Carlos A. Iglesias, Fernando Tapia Rico.
3. Semantic Annotation from Social Data.
   Geir Solskinnsbakk, Jon Atle Gulla.
4. Using SKOS to Integrate Social Networking Sites with Scholarly Information Portals.
   Arnim Bleier, Benjamin Zapilko, Mark Thamm, Peter Mutschke.
5. Social Semantic Web Access Control.
   Serena Villata, Nicolas Delaforge, Fabien Gandon, Amelie Gyrard.
6. LexiTags: An Interlingua for the Social Semantic Web.
   Csaba Veres.
7. Volatile Classification of Point of Interests based on Social Activity Streams.
   Amparo E. Cano, Andrea Varga, Fabio Ciravegna.
8. Semantic Technologies to Support the User-Centric Analysis of Activity Data.
   Mathieu D'Aquin, Salman Elahi, Enrico Motta.
9. Social Network Aggregation Using Face-Recognition.
   Patrick Minder, Abraham Bernstein.
10. Towards Mining Semantic Maturity in Social Bookmarking Systems.
    Martin Atzmueller, Dominik Benz, Andreas Hotho, Gerd Stumme.

The proceedings can also be accessed as a single PDF file.

## Citing the Proceedings

The proceedings are usually cited as follows:

    Alexandre Passant, Sergio Fernández, John Breslin, Uldis Bojārs (eds.): Proceedings of the
    Fourth International Workshop on Social Data on the Web Workshop (SDoW2011), Bonn (Germany),
    October 23, 2011. CEUR Workshop Proceedings, ISSN 1613-0073 online at CEUR-WS.org/Vol-830/ .

30-Jan-2012: submitted by Sergio Fernández
31-Jan-2012: published on CEUR-WS.org