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May is often a big month for us in Search, and 2012 has been no exception. This month we had exciting announcements including the Knowledge Graph, better search for users in mainland China, and an updated Search App for iPhone. We also released new sports features, deeper detection of hacked pages, and much more.
Improvements to Penguin. [launch codename "twref2", project codename "Page Quality"] This month we rolled out a couple minor tweaks to improve signals and refresh the data used by the penguin algorithm.
Freshness algorithm simplifications. [launch codename “febofu", project codename "Freshness"] This month we rolled out a simplification to our freshness algorithms, which will make it easier to understand bugs and tune signals.
Two of these changes are specific to search results on tablet computers
The data refresh was all that he mentioned, not the "minor tweaks."
Why deliver different results? My tablets have 10" screens like a netbook
I'm guessing that the user requirements are a bit different and so search results get ranked differently
Simpler logic for serving results from diverse domains. [launch codename "hc1", project codename "Other Ranking Components"] We have algorithms to help return a diverse set of domains when relevant to the user query. This change simplifies the logic behind those algorithms.
Why deliver different results?
This change replaces a number of thresholds used for identifying fresh documents with more continuous functions.What do you suppose continuous functions means?
The most frustrating thing for one of my website is that despite working hard to wean it off Google, it's still being *indirectly* affected by these Google algorithm changes.
[edited by: tedster at 4:15 am (utc) on Jun 12, 2012]