| Vol-447 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.

# First Workshop on Trust and Privacy on the Social and Semantic Web (SPOT2009)

### Proceedings of the ESWC2009 Workshop on Trust and Privacy on the Social and Semantic Web (SPOT2009)
Heraklion, Greece, June 1, 2009.

Edited by

### Michael Hausenblas *
Philipp Kärger #
Daniel Olmedilla %
Alexandre Passant *
Axel Polleres *

* DERI, National University of Ireland, Galway, Ireland
# L3S Research Center, Hannover, Germany
% Telefonica R&D, Madrid, Spain

Complete workshop proceedings as one file (~19 MB).

## Table of Contents

### Preface

- Trust and Privacy on the Social and Semantic Web (SPOT 2009)
  Michael Hausenblas, Philipp Kärger, Daniel Olmedilla, Alexandre Passant and Axel Polleres

### Keynote

- A Comparison of Terminological and Rule-based Policy Languages
  Piero A. Bonatti

### Workshop Papers

#### Trust Models for the Social and Semantic Web

- QUATRO Plus: Quality You Can Trust?
  Phil Archer, Elena Ferrari, Vangelis Karkaletsis, Stasinos Konstantopoulos, Antonis Koukourikos and Andrea Perego
- Assessing Trust: Contextual Accountability
  Matthew Rowe and Jonathan Butters

#### Policy-based Access Control

- Ontology Driven Community Access Control
  Fausto Giunchiglia, Rui Zhang and Bruno Crispo
- Using Natural Language Policies for Privacy Control in Social Platforms
  Juri Luca De Coi, Philipp Kärger, Daniel Olmedilla and Sergej Zerr

#### Privacy Protection on the Social and Semantic Web

- FOAF+TLS: RESTful Authentication for the Social Web
  Henry Story, Bruno Harbulot, Ian Jacobi and Mike Jones
- A scalable architecture for peer privacy on the Web
  Spyros Kotoulas and Ruud Stegers
- Privacy Concerns of FOAF-Based Linked Data
  Peyman Nasirifard, Michael Hausenblas and Stefan Decker

#### Data Provenance on the Social and Semantic Web

- Data Republishing on the Social Semantic Web
  Claudia Wagner and Enrico Motta
- Provenance: The Missing Component of the Semantic Web
  Harry Halpin

## Citing the Proceedings

The proceedings are usually cited as follows:

    Michael Hausenblas, Philipp Kärger, Daniel Olmedilla, Alexandre Passant, Axel Polleres (eds.):
    Proceedings of the First Workshop on Trust and Privacy on the Social and Semantic Web (SPOT2009),
    Heraklion, Greece, June 1, 2009, CEUR Workshop Proceedings, ISSN 1613-0073, online CEUR-WS.org/Vol-447/.

A paper in CEUR-WS.org should be cited using its online URL, for example

    Spyros Kotoulas and Ruud Stegers: A scalable architecture for peer privacy on the Web.
    In: Proceedings of the First Workshop on Trust and Privacy on the Social and Semantic Web (SPOT2009),
    Heraklion, Greece, June 1, 2009, CEUR Workshop Proceedings, ISSN 1613-0073, online CEUR-WS.org/Vol-447/paper1.pdf

## Bibtex File

The proceedings can also be cited using this bibtex file.

30-Apr-2009: submitted by Alexandre Passant
01-May-2009: published on CEUR-WS.org