Talel Abdessalem

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Talel Abdessalem is an author.

Publications

Only those publications related to wikis are shown here.
Title Keyword(s) Published in Language DateThis property is a special property in this wiki. Abstract R C
A probabilistic XML merging tool Probabilistic XML
Tree merge
XML merge
ACM International Conference Proceeding Series English 2011 This demonstration paper presents a probabilistic XML data merging tool, that represents the outcome of semi-structured document integration as a probabilistic tree. The system is fully automated and integrates methods to evaluate the uncertainty (modeled as probability values) of the result of the merge. It is based on the two-way tree-merge technique and an uncertain data model defined using probabilistic event variables. The resulting probabilistic repository can be queried using a subset of the XPath query language. The demonstration application is based on revisions of the Wikipedia encyclopedia: a Wikipedia article is no longer considered as the latest valid revision but as the merge of all possible revisions, some of which are uncertain. 0 0
Building a signed network from interactions in Wikipedia Online community
Signed networks
Social applications
Web of trust
Wikipedia
DBSocial English 2011 0 1
Casting a web of trust over Wikipedia: An interaction-based approach Online community
Signed networks
Social applications
Web of trust
Wikipedia
Proceedings of the 20th International Conference Companion on World Wide Web, WWW 2011 English 2011 We report in this short paper results on inferring a signed network (a "web of trust") from user interactions. On the Wikipedia network of contributors, from a collection of articles in the politics domain and their revision history, we investigate mechanisms by which relationships between contributors - in the form of signed directed links - can be inferred from their interactions. Our preliminary study provides valuable insight into principles underlying a signed network of Wikipedia contributors that is captured by social interaction. We look into whether this network (called hereafter WikiSigned) represents indeed a plausible configuration of link signs. We assess connections to social theories such as structural balance and status, which have already been considered in online communities. We also evaluate on this network the accuracy of a learned predictor for edge signs. Equipped with learning techniques that have been applied before on three explicit signed networks, we obtain good accuracy over the WikiSigned edges. Moreover, by cross training-testing we obtain strong evidence that our network does reveal an implicit signed configuration and that it has similar characteristics to the explicit ones, even though it is inferred from interactions. We also report on an application of the resulting signed network that impacts Wikipedia readers, namely the classification of Wikipedia articles by importance and quality. 0 0