Freebase
Freebase, created by Metaweb Technologies in 2006[1] (acquired by Google in 2010[2][3] and due to be phased out[4] then retired in 2015[5]), is an open database of the world’s information. It’s built by the community and for the community – free for anyone to query, contribute to, build applications on top of, or integrate into their websites.
By the time their public beta period wrapped up and they considered their platform "production-ready" in the summer of 2007, Freebase already covered millions of topics in hundreds of categories. Drawing from large open data sets like Wikipedia, MusicBrainz, and the SEC archives, it contains structured information on many popular topics, including movies, music, people and locations – all reconciled and freely available via an open API. This information is supplemented by the efforts of a passionate global community of users who are working together to add structured information on everything from philosophy to European railway stations to the chemical properties of common food ingredients.
By structuring the world’s data in this manner, the Freebase community is creating a global resource that will one day allow people and machines everywhere to access information far more easily and quickly than they can today. [6]
Contents
Wikidata
NOTE: Freebase will be shutdown as of July 2015, all data will be transferred to Wikidata and maintained by the WikiMedia foundation.
Wikidata is a project of the Wikimedia Foundation: a free, collaborative, multilingual, secondary database, collecting structured data to provide support for Wikipedia, Wikimedia Commons, the other Wikimedia projects, and well beyond that.[7]
- Wikidata: http://www.wikidata.org/wiki/Wikidata:Main_Page (Google & Wikimedia foundation's jointly-proposed replacement for Freebase)[8]
- WikiData API: http://www.mediawiki.org/wiki/Wikibase/API
- WikiData - DATA DUMPS: http://dumps.wikimedia.org/wikidatawiki/
Specifications
- Freebase Schema: http://www.freebase.com/schema/
- Freebase - Metaweb Query Language (MQL): http://wiki.freebase.com/wiki/MQL
Interfaces
Freebase BOT
The largest contributor to Freebase, BOT is a collector of information from sources all over the web, such as Wikipedia and IMDB.
- Meet the Freebase BOTs: http://blog.freebase.com/2009/01/06/meet-the-freebase-bots/
Freebase RDF
- Freebase RDF data dump: http://rdf.freebase.com/
- Google API - Freebase RDF dump overview: https://developers.google.com/freebase/v1/rdf-overview (new Google developers' page) | DEMO
- BaseKB - Freebase RDF filter: http://basekb.com/ (converts Freebase RDF to more standardized and usable RDF)
Freebase OWL
- Allows you to extract out definitions from freebase.com with PHP, and transform them into OWL / RDF / etc: http://code.google.com/p/freebase-owl/
Freebase UBIQUITY
- Freebase UBIQUITY commands (JavaScript): http://hamstersoup.com/freebase/ubiquity/
Freebase ACRE
- Freebase RSS (an ACRE application): http://rss.avh.user.dev.freebaseapps.com/
- Sample Acre app -- Genderizer: http://genderizer.freebaseapps.com/queue?mode=fictional
- Wiggleback - Acre App: http://www.wiggleback.com/wiggleback.html?day=10-19&from_year=1983&to_year=&domain=&types=&property=
DEMOS
- Freebase PARALLAX: http://mqlx.com/~david/parallax/
- Freebase Type Viewer: http://dev.mqlx.com/~darin/ftv/
- Freebase Raw Data Browser: http://mjtemplate.org/examples/schemas/domain.html?id=/medicine
- Freebase Movie Guide DEMO: http://kidbombay.com/clients/freebase/filmSpin/
Mashups
- CreativeCommons Car Pictures: http://carpictures.cc/
Example 1
Find all influences of Carl Jung:
[ { "influenced" : [], "influenced_by" : [], "name" : "Carl Jung", "peers" : [], "type" : "/influence/influence_node" } ]
Tools
- Freebase API - code generator: http://codify.freebaseapps.com/
- Freebase Sandbox: http://sandbox.freebase.com
- Freebase MQL Query Builder: http://www.freebase.com/queryeditor (formerly http://dev.scissor.com/querybuilder/)
- Freebase ACRE Application Development Environment: http://www.freebase.com/view/guid/9202a8c04000641f8000000006de254d
- MQL Reference Guide: http://mql.freebaseapps.com/
- Schema Introspection Cookbook : http://www.freebase.com/view/en/schema_introspection_cookbook
- The MQL Cookbook: http://www.freebase.com/view/en/the_mql_cookbook
- Getting started - Freebase App Builder Demo: http://www.freebase.com/tools/appeditor#app=/user/jdouglas/hello&file=index
- Make something with Freebase (Make a Base): getting started is easy!: http://www.freebase.com/make
- SchemaViz (Freebase schema visualization tool): http://schemaviz.freebaseapps.com/?domain=%2Fuser%2Fbcmoney%2Fmobile_tv
- Check daily quota/usage (enter Freebase username as final part of URL): http://quota.tfmorris.user.dev.freebaseapps.com/index?user=/user/bcmoney
Resources
- Google Knowledge Graph Search API: https://developers.google.com/knowledge-graph/ (replacement for Freebase Suggest service/widget, now powered by Wikidata)[11]
- Knowledge Graph cards: https://developers.google.com/search/docs/guides/search-features#knowledge_graph (Google API - part of Search API)
- Freebase (Google) v1.0 API: http://wiki.freebase.com/wiki/ApiSearch[12] | EXAMPLE
- Research area for Developers looking to use Freebase: http://research.freebase.com/
- Freebase Suggest project (on Google): http://code.google.com/p/freebase-suggest/
- Freebase Suggest and restricting to multiple types: http://niallohiggins.com/2008/11/14/freebase-suggest-and-restricting-to-multiple-types/
- Freebase ID system: http://wiki.freebase.com/wiki/Id
- Freebase - MQLread property gallery: http://api.freebase.com/api/service/mqlread?help=gallery | Freebase QueryEditor Reflection Example[13][14]
- Introducing Acre - Freebase’s integrated app development and hosting environment: http://dev.freebaseapps.com/
- OFFICIAL - Freebase Reference Guide: http://mql.freebaseapps.com/index
Tutorials
- Creating Freebase applications with PHP5: http://dev.mqlx.com/~jamie/php/php_example_text.html
- Freebase PHP - albumlist - building a simple app: http://blog.hamstersoup.com/2007/07/05/freebase-php-albumlist-building-a-simple-app/
- Really Simple Freebase Interface: http://mikelove.wordpress.com/2008/04/23/really-simple-freebase-interface/
- Chapter 4. Metaweb Read Services: http://mql.freebaseapps.com/ch04.html
- Freebase Suggest and restricting to multiple types: http://niallohiggins.com/2008/11/14/freebase-suggest-and-restricting-to-multiple-types/
- About Freebase Query Editor 2.0: http://www.freebase.com/app/queryeditor/about
- Trivially show an image for anything - Freebase ID to Image service: http://niallohiggins.com/2008/11/02/trivially-show-an-image-for-anything-freebase-id-to-image-service/
- Getting Started With Freebase API: http://wern-ancheta.com/blog/2013/02/11/getting-started-with-freebase-api/
- Freebase - building a Semantic Web app: http://tesladocet.com/programming/freebase-semantic-web-app-google-semantic-search/
- PHP and JSON Query to pull data from Freebase: http://stackoverflow.com/questions/8621913/php-and-json-query-to-pull-data-from-freebase
External Links
- Freebase gets a new look and introduces Acre: http://mndoci.com/blog/2008/10/31/freebase-gets-a-new-look-and-introduces-acre/
- Previewing Acre, a Freebase app builder: http://blog.freebase.com/2008/04/30/previewing-acre-a-freebase-app-builder/
- OpenSearch Visual Search support for Freebase: http://visualsearch.sblom.user.dev.freebaseapps.com/
- [Developers] "Unique query may have at most one result" Error: http://lists.freebase.com/pipermail/developers/2007-September/000641.html
- Playlist Builder using Freebase Suggest: http://hublog.hubmed.org/archives/001752.html
- Freebase -- An Overview: http://alexiskold.wordpress.com/2008/05/29/freebase-an-overview/
- Freebase Sets: http://sets.narphorium.user.dev.freebaseapps.com/find?topic=/guid/9202a8c04000641f80000000000a49e7&topic=/en/calgary_alberta&topic=&topic=&topic=
- Freebase Contribution Guidelines : http://www.freebase.com/view/en/freebase_contribution_guidelines
- A quick tour of Freebase : http://infotrope.net/blog/2007/09/09/a-quick-tour-of-freebase/
- Basic Search Demo (in Flash): http://kidbombay.com/clients/freebase/examples/search/
- MQL Monday: http://blog.freebase.com/tag/mql/
- Google buys Metaweb and its sprawling database: http://news.cnet.com/8301-30685_3-20010832-264.html?tag=contentMain;contentBody
- Freebase, RDF and the Semantic Web: http://www.slideshare.net/jamietaylor/freebase-rdf-and-the-semantic-web-1455414
- Freebase Shutting Down in 2015, Transferring All Data to Wikidata: http://semanticweb.com/freebase-shutting-2015-transferring-data-wikidata_b45364
- The Knowledge Graph team at Google announces shutdown of Freebase, transfer to WikiData: http://plus.google.com/u/0/109936836907132434202/posts/bu3z2wVqcQc?cfem=1
- Google Acquires Metaweb To Make Search Smarter: http://techcrunch.com/2010/07/16/google-acquires-metaweb-to-make-search-smarter/
- What will happen to Google Trends when Google shuts down Freebase in favor of Wikidata?: http://www.quora.com/What-will-happen-to-Google-Trends-when-Google-shuts-down-Freebase-in-favor-of-Wikidata
References
- ↑ wikipedia: Metaweb
- ↑ Google Acquires Metaweb: http://mashable.com/2010/07/16/google-acquires-metaweb/
- ↑ Google Acquires Metaweb To Make Search Smarter: http://techcrunch.com/2010/07/16/google-acquires-metaweb-to-make-search-smarter/
- ↑ When we publicly launched Freebase back in 2007, we thought of it as a "Wikipedia for structured data.": http://plus.google.com/109936836907132434202/posts/bu3z2wVqcQc
- ↑ As previously announced [1], Freebase will be going read-only next Tuesday, March 31st. This means that the website will no longer accept edits and the MQL write API will be retired. Full decommissioning of Freebase API/Website in favor of "Google Knowledge Graph" was due for June 30th, 2015... pushed to August 30th, 2015: http://plus.google.com/109936836907132434202/posts/3aYFVNf92A1
- ↑ Freebase: http://www.freebase.com/
- ↑ Wikidata - Introduction: http://www.wikidata.org/wiki/Wikidata:Introduction
- ↑ Google's Freebase To Close After Migrating To Wikidata -- Knowledge Graph Impact?: http://www.seroundtable.com/google-freebase-wikidata-knowledge-graph-19591.html
- ↑ Introducing Mozilla Labs' Ubiquity - It Doesn’t Have to be This Way (An experiment into connecting the Web with language): http://labs.mozilla.com/2008/08/introducing-ubiquity/
- ↑ Powerset demo pulling Freebase data, including influences: http://mikelove.wordpress.com/2008/04/11/powerset-demo-pulling-freebase-data-including-influences/
- ↑ Wikidata Meets the Google Knowledge Graph: https://www.searchenginejournal.com/wikidata-meets-google-knowledge-graph/130459/
- ↑ Freebase API Reference: http://www.freebase.com/view/guid/9202a8c04000641f8000000008c0e536
- ↑ http://www.freebase.com/query?lang=/lang/en&q={"/type/reflect/any_master":[{"link":null,"name":null,"id":null,"optional":true}],"/type/reflect/any_reverse":[{"link":null,"name":null,"id":null,"optional":true}],"id":"/en/armin_wolf","/type/reflect/any_value":[{"value":null,"link":null,"optional":true}]}
- ↑ https://www.googleapis.com/freebase/v1/mqlread/?lang=/lang/en&query={+"/type/reflect/any_master":+[{+"link":+null,+"name":+null,+"id":+null,+"optional":+true+}],+"/type/reflect/any_reverse":+[{+"link":+null,+"name":+null,+"id":+null,+"optional":+true+}],+"id":+"/en/armin_wolf",+"/type/reflect/any_value":+[{+"value":+null,+"link":+null,+"optional":+true+}]+}
See Also
Semantic Web | YQL | Google