Statistical measure of quality in Wikipedia

Sara Javanmardi · Cristina Videira Lopes

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Wikis in Education and Collaboration Access Control and Trust Expert finding and Q&A systems

Abstract

Wikipedia is commonly viewed as the main online encyclopedia. Its content quality, however, has often been questioned due to the open nature of its editing model. A high--quality contribution by an expert may be followed by a low-quality contribution made by an amateur or a vandal; therefore the quality of each article may fluctuate over time as it goes through iterations of edits by different users. With the increasing use of Wikipedia, the need for a reliable assessment of the quality of the content is also rising. In this study, we model the evolution of content quality in Wikipedia articles in order to estimate the fraction of time during which articles retain high-quality status. To evaluate the model, we assess the quality of Wikipedia's featured and non-featured articles. We show how the model reproduces consistent results with what is expected. As a case study, we use the model in a CalSWIM mashup the content of which is taken from both highly reliable sources and Wikipedia, which may be less so. Integrating CalSWIM with a trust management system enables it to use not only recency but also quality as its criteria, and thus filter out vandalized or poor-quality content.

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2007Wikinomics: how mass collaboration changes everything 2005Internet encyclopaedias go head to head 2008The Future of the Internet--And How to Stop It 2004Studying cooperation and conflict between authors with history flow visualizations 2007He says, she says 2007A content-driven reputation system for the wikipedia 2004Wikipedia as Participatory Journalism: Reliable Sources? Metrics for evaluating collaborative media as a news resource 2008Size matters

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2013Value Production in a Collaborative Environment 2016Measuring Quality of Collaboratively Edited Documents: The Case of Wikipedia 2015Measuring Article Quality in Wikipedia using the Collaboration Network 2017An end-to-end learning solution for assessing the quality of Wikipedia articles 2016Wikipedia vs. Academia: An Investigation into the Role of the Internet in Education, with a Special Focus on Wikipedia 2014What makes a good biography?

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