Workshop Program

Tuesday, July 22nd, 2008

09:00-09:30	PAN-08 opening talk Benno Stein
09:30-10:00	Modern Authorship Attribution Efstathios Stamatatos [slides]
10:00-10:30	Coffee Break
10:30-11:00	Towards the Exploitation of Statistical Language Models for Plagiarism Detection with Reference Alberto Barrón-Cedeño, Paolo Rosso [paper] [slides]
11:00-11:30	On Cross-lingual Plagiarism Analysis using a Statistical Model Alberto Barrón-Cedeño, Paolo Rosso, David Pinto and Alfons Juan [paper] [slides]
11:30-12:00	Detecting Fake Content with Relative Entropy Scoring Thomas Lavergne, Tanguy Urvoy, François Yvon [paper] [slides]
12:00-12:30	Pedigree Tracking in the Face of Ancillary Content Eugene R. Creswick, Emi Fujioka, Terrance Goan [paper] [slides]
12:30-14:00	Lunch
14:00-14:30	Panel Discussion Moshe Koppel
14:30	PAN-08 closing remarks

For the entire Proceedings see the publisher website.

Call for Papers

The workshop shall bring together experts and researchers around the exciting and future-oriented topics of plagiarism analysis, authorship identification, and the detection of social software misuse. The development of new solutions for these problems can benefit from the combination of existing technologies, and in this sense the workshop provides a platform that spans different views and approaches. The following list gives examples from the outlined fields for which contributions are welcome, but not restricted to:

• plagiarism detection in general, in Web communities and social networks, and cross-language plagiarism
• identifying near-duplicate and versioned documents of all kinds: text, software, image, music, sound
• technology for high-similarity retrieval such as fingerprinting and similarity hashing

• models for authorship identification, authorship attribution, and writing style
• NLP- and knowledge-based retrieval models to capture personal traits and sentiment
• Web forensics, community fraud, and new Web infringements

• uncovering serial sharing and lobbying
• monitoring vandalism, trolling, or stalking
• trust, psychological and personality-based user studies, social aspects of Web misuse

Some background:

Plagiarism analysis is a collective term for computer-based methods to identify a plagiarism offense. In connection with text documents we distinguish between corpus-based and intrinsic analysis: the former compares suspicious documents against a set of potential original documents, the latter identifies potentially plagiarized passages by analyzing the suspicious document with respect to changes in writing style.

Authorship identification divides into so-called attribution and verification problems. In the authorship attribution problem, one is given examples of the writing of a number of authors and is asked to determine which of them authored given anonymous texts. In the authorship verification problem, one is given examples of the writing of a single author and is asked to determine if given texts were or were not written by this author. As a categorization problem, verification is significantly more difficult than attribution. Authorship verification and intrinsic plagiarism analysis represent two sides of the same coin.

Social software such as Web logs, sharing sites for photos and videos, wikis and on-line forums contribute up to one third of new Web content. "Social Software Misuse" is a collective term for anti-social behavior in online communities; an example is the distribution of spam via the e-mail infrastructure. Interestingly, spam is one of the few misuses for which detection technology is developed at all, though various forms of misuse exist that threaten the different online communities. Our workshop shall close this gap and invites contributions concerned with all kinds of social software misuse.

Submission Guideline

The workshop shall encourage the presentation of novel ideas in a possibly less formal way; however, we are still striving for high-quality contributions. Each contribution will be peer-reviewed by at least two reviewers, accepted papers will be included in the workshop proceedings. Depending on the quality of their contribution the author(s) of an accepted paper are invited to give a long or short presentation of their work. Moreover, we plan to invite the authors of the best papers to submit an overview article of their work for a special issue of an international journal, edited by the organizers with the aid of the program committee.

Submitted papers should be in the ECAI'08 Conference style, see the conference style guide, and may not exceed 5 pages. Submissions must generally be in electronic form using the Portable Document Format (PDF) or Postscript and mailed to pan-08@aisearch.de. The review is doubleblind; please anonymize your submission.

Organizing Committee

• Benno Stein, Bauhaus University Weimar, Germany
• Efstathios Stamatatos, University of the Aegean, Greece
• Moshe Koppel, Bar-Ilan University, Israel

• Shlomo Argamon, Illinois Institute of Technology, USA
• Yaniv Bernstein, Google, Switzerland
• Fazli Can, Bilkent University, Turkey
• Carole Chaski, Institute for Linguistic Evidence, USA
• Christian Gütl, University of Technology Graz, Austria
• Graeme Hirst, University of Toronto, Canada
• Heiko Holzheuer, Lycos Europe, Germany
• Hans Kleine-Büning, University of Paderborn, Germany
• >Moshe Koppel, Bar-Ilan University, Israel
• Hermann Maurer, University of Technology Graz, Austria
• George Mikros, National and Capodestrian University of Athens, Greece
• Sven Meyer zu Eissen, Bauhaus University Weimar, Germany
• Martin Potthast, Bauhaus University Weimar, Germany
• Paolo Rosso, Universidad Politecnica de Valencia, Spain
• Efstathios Stamatatos, University of the Aegean, Greece
• Benno Stein, Bauhaus University Weimar, Germany
• Özlem Uzuner, State University of New York, USA