Statistical Quality Control, Quality Control, Quality Improvement, SQC at sqc.com |
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Why Wikipedia Articles Vary So Much In QualityDate: Sun, 7. March 2010 15:05:13
Hugh Pickens writes "A new study shows that the patterns of collaboration among Wikipedia contributors directly affect the quality of an article. 'These collaboration patterns either help increase quality or are detrimental to data quality,' says Sudha Ram at the University of Arizona. Wikipedia has an internal quality rating system for entries, with featured articles at the top, followed by A, B, and C-level entries. Ram and graduate student Jun Liu randomly collected 400 articles at each quality level. 'We used data mining techniques and identified various patterns of collaboration based on the provenance or, more specifically, who does what to Wikipedia articles,' says Ram. The researchers identified seven specific roles that Wikipedia contributors play (PDF starting on page 175): Casual Contributor, Starter, Cleaner, Copy Editor, Content Justifier, Watchdog, and All-round Editor. Starters, for example, create sentences but seldom engage in other actions. Content justifiers create sentences and justify them with resources and links. The all-round contributors perform many different functions. 'We then clustered the articles based on these roles and examined the collaboration patterns within each cluster to see what kind of quality resulted,' says Ram. 'We found that all-round contributors dominated the best-quality entries. In the entries with the lowest quality, starters and casual contributors dominated.'"pa href="http://news.slashdot.org/story/10/03/06/1917223/Why-Wikipedia-Articles-Vary-So-Much-In-Quality?from=rss"img src="http://slashdot.org/slashdot-it.pl?from=rssamp;op=imageamp;style=h0amp;sid=10/03/06/1917223"/aa href="http://www.facebook.com/sharer.php?u=http%3A%2F%2Fnews.slashdot.org%2Fstory%2F10%2F03%2F06%2F1917223%2FWhy-Wikipedia-Articles-Vary-So-Much-In-Quality" target="_blank" title="Share on Facebook"img src="http://a.fsdn.com/sd/facebook_icon_large.png"/a
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2008 Vauxhall Astra Design from UK and IrelandDate: Sat, 17. July 2010 06:46:49
A quality build and feel
1999 Nissan Maxima GLE from North AmericaDate: Wed, 2. June 2010 15:33:55
Great quality for the money
2004 Acura MDX 3.5L from North AmericaDate: Sat, 2. January 2010 05:05:26
MDX quality is poor
Pontiac Grand Am SE from North America, manufactured in 2003Date: Thu, 17. July 2008 03:16:41
Excellent quality for the price
Nissan Pathfinder SE from North America, manufactured in 1995Date: Thu, 29. January 2009 03:44:23
For the money they cost, they should be of better quality
Cadillac DeVille SDN from North America, manufactured in 2002Date: Sun, 18. May 2008 09:37:09
Very overpriced with Cadillac quality gone
Honda Civic SE from UK and Ireland, manufactured in 2008Date: Thu, 4. September 2008 15:20:55
Expensive considering the poor quality
1999 Pontiac Grand Am GT from North AmericaDate: Wed, 7. July 2010 06:26:34
What happened to G.M. quality for Pontiac?
2001 Volkswagen Jetta VR6 from North AmericaDate: Fri, 25. June 2010 15:43:37
Car is OK, but expected better quality from VW
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