RankBrain

RankBrain is a machine learning-based search engine algorithm, the use of which was confirmed by Google on 26 October 2015.[1] It helps Google to process search results and provide more relevant search results for users.[2] In a 2015 interview, Google commented that RankBrain was the third most important factor in the ranking algorithm along with links and content.[2] As of 2015, "RankBrain was used for less than 15% of queries." [3] The results show that RankBrain produces results that are well within 10% of the Google search engine engineer team.[4]

If RankBrain sees a word or phrase it isn’t familiar with, the machine can make a guess as to what words or phrases might have a similar meaning and filter the result accordingly, making it more effective at handling never-before-seen search queries or keywords. Search queries are sorted into word vectors, also known as “distributed representations,” which are close to each other in terms of linguistic similarity. RankBrain attempts to map this query into words (entities) or clusters of words that have the best chance of matching it. Therefore, RankBrain attempts to guess what people mean and records the results, which adapts the results to provide better user satisfaction.[5]

There are over 200 different ranking factors which make up the ranking algorithm, whose exact functions in the Google algorithm are not fully disclosed. Behind content and links,[6] RankBrain is considered the third most important signal in determining ranking on Google search.[7][3] Although Google has not admitted to any order of importance, only that RankBrain is one of the three most important of its search ranking signals.[8] When offline, RankBrain is given batches of past searches and learns by matching search results. Studies showed how RankBrain better interpreted the relationships between words. This can include the use of stop words in a search query ("the," "and," "without," etc) – words that were historically ignored previously by Google but are sometimes of a major importance to fully understanding the meaning or intent behind a person’s search query. It’s also able to parse patterns between searches that are seemingly unconnected, to understand how those searches are similar to each other.[9] Once RankBrain's results are verified by Google's team the system is updated and goes live again.[10]

Google has stated that it uses tensor processing unit (TPU) ASICs for processing RankBrain requests.[11]

Impact on digital marketing

RankBrain has allowed Google to speed up the algorithmic testing it does for keyword categories to attempt to choose the best content for any particular keyword search. This means that old methods of gaming the rankings with false signals are becoming less and less effective and the highest quality content from a human perspective is being ranked higher in Google. [12]

RankBrain has helped Hummingbird provide more accurate results because it can learn words and phrases it may not know. It also learns them specifically for the country, as well as language, in which a query is made. So, if one looks up a query with the word boot in it within the United States, one will get information on footwear. However, if the query comes through the UK, then the information could also be in regards to storage spaces in cars.[13]

References
  1. "Google: RankBrain Archives". Search Engine Land. Retrieved 2020-11-03.
  2. Clark, Jack. "Google Turning Its Lucrative Web Search Over to AI Machines". Bloomberg Business. Bloomberg. Retrieved 28 October 2015.
  3. "Google uses RankBrain for every search, impacts rankings of "lots" of them". Search Engine Land. 2016-06-23. Retrieved 2017-04-14.
  4. "Google RankBrain 權威指南 | Whoops SEO". seo.whoops.com.tw (in Chinese). Retrieved 2018-01-15.
  5. Capala, Matthew (2016-09-02). "Machine learning just got more human with Google's RankBrain". The Next Web. Retrieved 2017-01-19.
  6. "Rankbrain 2017". Pay-Website (Edith). 2017-05-12. Retrieved 2017-08-21.
  7. "Now we know: Here are Google's top 3 search ranking factors". Search Engine Land. 2016-03-24. Retrieved 2017-04-14.
  8. "Google Releases the Top 3 Ranking Factors | SEJ". Search Engine Journal. 2016-03-25. Retrieved 2017-04-14.
  9. "The real impact of Google's RankBrain on search traffic". The Next Web. Retrieved 2017-05-22.
  10. Sullivan, Danny. "FAQ: All About The New Google RankBrain Algorithm". Search Engine Land. Retrieved 28 October 2015.
  11. "Google's Tensor Processing Unit could advance Moore's Law 7 years into the future". PCWorld. Retrieved 2017-01-19.
  12. "NonTechie RankBrain Guide [Infographic]". www.logicbasedmarketing.com. Retrieved 2018-02-16.
  13. "The Google RankBrain Algorithm Explained - Best for SEO". www.seonewsagency.com. Retrieved 2018-11-13.
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