Knowledge Graph

For other uses of "Knowledge engine", see Knowledge engine (disambiguation).
Knowledge Graph data about Thomas Jefferson displayed on Google Web Search, as of January 2015.

The Knowledge Graph is a knowledge base used by Google to enhance its search engine's search results with semantic-search information gathered from a wide variety of sources. Knowledge Graph display was added to Google's search engine in 2012, starting in the United States, having been announced on May 16, 2012.[1] It provides structured and detailed information about the topic in addition to a list of links to other sites. The goal is that users would be able to use this information to resolve their query without having to navigate to other sites and assemble the information themselves.[2] The short summary provided in the knowledge graph is often used as a spoken answer in Google Now searches.[3]

According to some news websites, the implementation of Google's Knowledge Graph has played a role in the page view decline of various language versions of Wikipedia.[4][5][6][7]

History

According to Google, the information in the Knowledge Graph is derived from many sources, including the CIA World Factbook, Wikidata, and Wikipedia.[1] The feature is similar in intent to answer engines such as Wolfram Alpha and efforts such as Linked Data and DBpedia.

As of 2012, its semantic network contained over 570 million objects and more than 18 billion facts about and relationships between different objects that are used to understand the meaning of the keywords entered for the search.[8][9]

On December 4, 2012, the Knowledge Graph was introduced in seven more languages: Spanish, French, German, Portuguese, Japanese, Russian, and Italian.[10][11]

During the Google I/O conference in May 2013, Google's Amit Singhal presented on the future of search, explaining that a search engine's three primary functions will need to evolve and that search will need to: 1. Answer, 2. Converse, and 3. Anticipate.[12] As part of his keynote talk Singhal asked: "A computer you can talk to? And it will answer everything you ask it?"[13]

In August 2014, Google announced a new initiative, the Knowledge Vault, which derives much of its data from the Knowledge Graph and the sources thereof, as well as harvesting its own data, ranking its reliability and compiling all results into a database of over 1.6 billion facts collected by machine learning algorithms. On December 16, 2014 the Freebase and Knowledge Graph team at Google announced that Freebase would shut-down in late 2015 and that they would help to transfer all of its data over to Wikidata.[14]

Competition

Microsoft Bing's knowledge base, named Satori Knowledge Base, was revealed to the public in mid-2013,[15] but further details were not released. Other companies such as Yahoo! and Baidu have also been working on knowledge graphs.

See also

References

  1. 1 2 Singhal, Amit (May 16, 2012). "Introducing the Knowledge Graph: Things, Not Strings". Official Blog (of Google). Retrieved May 18, 2012.
  2. ↑ (registration required) Waters, Richard (May 16, 2012). "Google To Unveil Search Results Overhaul". Financial Times. Retrieved May 16, 2012.
  3. ↑ Bohn, Dieter. "Google Now: behind the predictive future of search". The Verge. Vox Media, Inc. Retrieved 23 March 2015.
  4. ↑ Orlowski, Andrew (13 January 2014). "Google stabs Wikipedia in the front". The Register. Retrieved 15 January 2014.
  5. ↑ Kohs, Gregory (6 January 2014). "Google’s Knowledge Graph Boxes: killing Wikipedia?". Wikipediocracy. Retrieved 15 January 2014.
  6. ↑ Marshall, Gary. "Like Harvey Dent, Google has become Two Face". TechRadar. Retrieved 15 January 2014.
  7. ↑ Andrieu, Olivier (14 January 2014). "Le Knowledge Graph de Google ferait baisser le trafic de Wikipedia" (in French). Abondance. Retrieved 15 January 2014.
  8. ↑ Staff (December 4, 2012). "Get smarter answers from the Knowledge Graph from Português to 日本語 to русский". Google. Retrieved December 4, 2012.
  9. ↑ Akesson, Andrew (August 27, 2014). "Google My Business Profiles Start Ranking In Non-Branded Searches". Retrieved September 9, 2014.
  10. ↑ Newton, Casey (December 14, 2012). "How Google is taking the Knowledge Graph global". CNET.
  11. ↑ Brown, Aaron (December 12, 2012). "Get smarter answers from the Knowledge Graph from Português to 日本語 to русский". Inside Search (Google).
  12. ↑ Google (May 15, 2013). "Google I/O 2013: Keynote".
  13. ↑ Jessica Lee (16 May 2013). "OK Google: 'The End of Search as We Know It'". Search Engine Watch. Incisive Interactive Marketing LLC. Retrieved 20 May 2013.
  14. ↑ "Transferring Data to Wikidata and Shutting Down". Google+. Dec 16, 2014. Retrieved Dec 18, 2014.
  15. ↑ http://blogs.bing.com/search/2013/03/21/understand-your-world-with-bing/

External links

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