Fabian Flöck2

Aus Aifbportal
Wechseln zu:Navigation, Suche

Making Authorship and Social Interactions Transparent in Collaboratively Written and Revisioned Text – The Use Case of Wikipedia


When readers judge the credibility of a newspaper report or a blog post, one major factor is who wrote the piece in question. Yet, when reading the products of digital collaborative writing systems, individual author attribution is usually not available. Even more telling for assessing the quality of a text – of a newspaper or a Wikipedia article – might it be to understand how it was composed, i.e., the (collaborative) processes behind the content production. For Wikipedia, we argue that certain (and which) meso-level "social mechanisms" exist that are typical to emerge between editors writing a document together – such as claiming ownership of a collaborative document or non-cooperative behavior – which can impair the workflow for creating high-quality content. Still, they cannot be sufficiently analyzed, as appropriate methods for mining and explicitly representing editor interactions are lacking.

We hence present a method for revisioned, collaborative writing systems to extract the fine-grained interactions of editors with each other and with the content over time and represent them in a way that best models the underlying reality of the socio-technical system, based on the raw text revisions produced by the editors.

The first part of this approach is an algorithm to mine authorship of single text tokens from the revision history of a document. The solution we present is the first to be evaluated at over 95% correct attributions; and it decreases execution time by at least one order of magnitude compared to previous techniques.

Next, through a user pre-study, we establish that state-of-the-art detection of editor interactions is based on modeling disagreement (reverts) at a very coarse-grained level and isn’t able to capture large portions of occurring disagreements.

Based on those insights we present an extension of the authorship algorithm to mine interactions of users with each other on top of the accurate authorship and change attributions to infer detailed "agreement" and "disagreement" relations.

Finally, leveraging the extracted data, we built two working prototypes of web-based visualizations for end users, which make editor-editor interactions, authorship and additional collaboration metrics transparent.

To conclude we outline how our solutions can be used in other collaborative writing systems and what further research can be conducted using the mined data.

(Fabian Flöck)

Start: 10. Juli 2015 um 14:00
Ende: 10. Juli 2015 um 15:00

Im Gebäude 11.40, Raum: 231

Veranstaltung vormerken: (iCal)

Veranstalter: Forschungsgruppe(n) Wissensmanagement
Information: Media:1Flöck.pdf