Google Algorithm UpdateICT426 : Search Engine & Retrieval Systems

Toshiaki Tanaka (5509124)

Introduction• About Google

• Google Algorithm Updates

• Google Dance

• Universal Search

• Panda Update

• Penguin Update

• Hummingbird Update

• Sergey Brin & Larry Page (Stanford University)

• Googol (10^100)(1 followed by 100 zeros)

• Founded in 1998

Google Dance• Not steady PageRank due to Google algorithm update (Update

index) (Temporary)

• Not only Google (Other search engine also)

• End in 2003 ( Increase frequency of updates )

Google Universal Search • Result not only website (Image, Video, News)

• Algorithm update in May in 2007

Panda Update• Focus on contents

• Evaluate the quality of contents (For users, Useful or not)

• Result : do not show the poor contents on high rank page

• Algorithm update in February in 2011

Penguin Update• Focus on deleting Black Hat SEO

• Black Hat SEO (= Web spam )(Staffing, Hidden link, Cloaking )

• Algorithm update in April in 2012

Hummingbird Update• Focus on understand complexed natural language correctly (For

voice retrieval)

• Algorithm update in August in 2013

Thank you for listening