This is a sort of a frequently occurring phenomena.
One recent examples from the english Wikipedia :
If we excluded the possibility of failure during data acquisition or data processing, it is very hard to predict the exact reasons, specially on large Wikimedia projects due to the high complexity of the site structure, and the continues changes taking place on it.
One of the general reasons for this could be adding a link at a highly accessed page (e.g. main page, welcome template, mediawiki page .. etc) or making the existing links more visible or emphasized, and then reverting these change after a few days.
Wish this was helpful.
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Haitham Shammaa
Contribution Research Manager
Wikimedia Foundation
Hello researchers near and far -
I was notified by some people from the Portuguese Wikipedia community about an anomaly in the page view statistics between May 30-June 15 for several of their help pages:
There is not a matching increase in number of page views of the main page[4], nor is there a similar spike in other language projects.
They are wondering if anyone has any thoughts on why this could be, or suggestions on ways they could answer some further questions. Has anyone seen something like this previously?
Thanks in advance for the help!
Jessie
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Jessie Wild
Global Development, Manager
Wikimedia Foundation
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