A new study, conducted by researchers at the Palo Alto Research Center in California, has shown that Wikipedia''s ascendancy to the top of a large pool of online reference sites may be coming to an end because the community-created encyclopaedia has become less welcoming to new contributors.
A new study, conducted by researchers at the Palo Alto Research Center in California, has shown that Wikipedia''s ascendancy to the top of a large pool of online reference sites may be coming to an end because the community-created encyclopaedia has become less welcoming to new contributors.
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The research team has warned that the changes could compromise the encyclopaedia''s quality in the long term.
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"It''s easy to say that Wikipedia will always be here. This research shows that is not a given," New Scientist quoted Dr. Ed Chi, a senior scientist at the Palo Alto Research Center, as saying.
Eight years after launching, Wikipedia contains nearly 3 million articles submitted by users themselves and edited by others in the Wikipedia community.u00a0
However, when the research team analysed a downloaded version of the encyclopaedia they found its growth has peaked.
The researchers found that the number of articles added per month flattened out at 60,000 in 2006 and has since declined by around a third.
They also found that the number of edits made every month and the number of active editors both stopped growing the following year, flattening out at around 5.5 million and 750,000 respectively.
The data suggests the Wikipedia community is becoming resistant to new content and new editors. Those passive editors who make just a single change per month see around a quarter of their changes erased or modified by other, more active editors (the rate was just 10 percent in 2003).u00a0
The resulting exclusion of more varied contributions shifts the balance of power on Wikipedia to those fewer active editors, and in turn could make Wikipedia more like a fraternity than a community-driven social encyclopedia.u00a0
Over time, the research team warns, the quality of Wikipedia could degrade as there would be fewer editors checking for errors and correcting the vandalism that accompanies user-gen Web sites.u00a0
The non-profit Wikimedia Foundation responsible for running Wikipedia has launched an internal review to make sense of the data, but says the numbers could be deceiving.u00a0
For instance, the higher number of modifications to passive contributors'' edits could be the result of human editors removing promotional text added to articles by spam programs, an increasing problem on Wikipedia.u00a0
The research team will present their analysis at the International Symposium on Wikis and Open Collaboration in Orlando, Florida this October.
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