15. 2012 Google “Highlights”
Jan – 17*
Feb – 40 198 reported
Mar
Apr
– 50
– 52 = 475 projected
May – 39
*Late 2011 and January 2012 were probably under-reported
16. 2012 updates by type
“Minor” updates include spell-check, speed, snippets, sitelinks…
17. What’s in a name?
Panda = 16 updates (3 major, 13 minor) over 17 months
18. How minor is “minor”?
(1) Tweaks to handling of anchor text. [launch codename "PC"] This month
we turned off a classifier related to anchor text (the visible text appearing in
links). Our experimental data suggested that other methods of anchor
processing had greater success, so turning off this component made our
scoring cleaner and more robust.
(2) Keyword stuffing classifier improvement. [project codename "Spam"]
We have classifiers designed to detect when a website is keyword stuffing.
This change made the keyword stuffing classifier better.
(1) “Minor” highlight from March, (2) Part of the “Penguin” update