Lee Daniel Crocker

Last updated
Lee Daniel Crocker
Lee Daniel Crocker.JPG
Crocker in 2008
Born
Lee Daniel Crocker

(1963-07-03) July 3, 1963 (age 60)
Occupation Computer programmer
Lee Daniel Crocker at Internet Archive, 2008 Feb 2008 San Francisco Wikimedia Meetup 05.jpg
Lee Daniel Crocker at Internet Archive, 2008

Lee Daniel Crocker (born July 3, 1963) is an American computer programmer. He is best known for rewriting the software upon which Wikipedia runs, to address scalability problems. This software, originally known as "Phase III", went live in July 2002 and became the foundation of what is now called MediaWiki. MediaWiki's code repository was still named "phase3" until the move from Subversion to Git in March 2012.

Contents

He is a co-author of the PNG specification, and was also involved in the creation of the GIF and JPEG image file formats. He invented the per-scanline variable pre-filtering compression method used by PNG, the sum-of-abs heuristic used by many encoding programs. [1] In 1998, he was one of the 23 original creators of the "Transhumanist Declaration". [2] As of 1999, he was a member of the Extropians futurist society. [3]

In June 2010, Crocker was among those recognized by the Software Tools Users Group (STUG) as a major contributor to MediaWiki when they awarded MediaWiki and the Wikimedia Foundation the USENIX Advanced Computing Technical Association STUG award for "the largest collaboratively edited reference projects in the world, including Wikipedia". [4]

See also

Related Research Articles

<span class="mw-page-title-main">Alan Kay</span> American computer scientist (born 1940)

Alan Curtis Kay is an American computer scientist best known for his pioneering work on object-oriented programming and windowing graphical user interface (GUI) design. At Xerox PARC he led the design and development of the first modern windowed computer desktop interface. There he also led the development of the influential object-oriented programming language Smalltalk, both personally designing most of the early versions of the language and coining the term "object-oriented." He has been elected a Fellow of the American Academy of Arts and Sciences, the National Academy of Engineering, and the Royal Society of Arts. He received the Turing award in 2003.

<span class="mw-page-title-main">Vorbis</span> Royalty-free lossy audio encoding format

Vorbis is a free and open-source software project headed by the Xiph.Org Foundation. The project produces an audio coding format and software reference encoder/decoder (codec) for lossy audio compression, libvorbis. Vorbis is most commonly used in conjunction with the Ogg container format and it is therefore often referred to as Ogg Vorbis.

<span class="mw-page-title-main">Wiki</span> Type of website that visitors can edit

A wiki is a form of online hypertext publication that is collaboratively edited and managed by its own audience directly through a web browser. A typical wiki contains multiple pages for the subjects or scope of the project, and could be either open to the public or limited to use within an organization for maintaining its internal knowledge base.

<span class="mw-page-title-main">Douglas McIlroy</span> American mathematician and computer scientist

Malcolm Douglas McIlroy is an American mathematician, engineer, and programmer. As of 2019 he is an Adjunct Professor of Computer Science at Dartmouth College. McIlroy is best known for having originally proposed Unix pipelines and developed several Unix tools, such as spell, diff, sort, join, graph, speak, and tr. He was also one of the pioneering researchers of macro processors and programming language extensibility. He participated in the design of multiple influential programming languages, particularly PL/I, SNOBOL, ALTRAN, TMG and C++.

<span class="mw-page-title-main">USENIX</span> Organization supporting operating system research

USENIX is an American 501(c)(3) nonprofit membership organization based in Berkeley, California and founded in 1975 that supports advanced computing systems, operating system (OS), and computer networking research. It organizes several conferences in these fields.

<span class="mw-page-title-main">MediaWiki</span> Free and open-source wiki software

MediaWiki is free and open-source wiki software originally developed by Magnus Manske for use on Wikipedia on January 25, 2002, and further improved by Lee Daniel Crocker, after which it has been coordinated by the Wikimedia Foundation. It powers several wiki hosting websites across the Internet, as well as most websites hosted by the Foundation including Wikipedia, Wiktionary, Wikimedia Commons, Wikiquote, Meta-Wiki and Wikidata, which define a large part of the set requirements for the software. MediaWiki is written in the PHP programming language and stores all text content into a database. The software is optimized to efficiently handle large projects, which can have terabytes of content and hundreds of thousands of views per second. Because Wikipedia is one of the world's largest and most visited websites, achieving scalability through multiple layers of caching and database replication has been a major concern for developers. Another major aspect of MediaWiki is its internationalization; its interface is available in more than 400 languages. The software has more than 1,000 configuration settings and more than 1,800 extensions available for enabling various features to be added or changed. Besides its usage on Wikimedia sites, MediaWiki has been used as a knowledge management and content management system on websites such as Fandom, wikiHow and major internal installations like Intellipedia and Diplopedia.

The Computer Science Network (CSNET) was a computer network that began operation in 1981 in the United States. Its purpose was to extend networking benefits, for computer science departments at academic and research institutions that could not be directly connected to ARPANET, due to funding or authorization limitations. It played a significant role in spreading awareness of, and access to, national networking and was a major milestone on the path to development of the global Internet. CSNET was funded by the National Science Foundation for an initial three-year period from 1981 to 1984.

<span class="mw-page-title-main">Web 2.0</span> World Wide Web sites that use technology beyond the static pages of earlier Web sites

Web 2.0 refers to websites that emphasize user-generated content, ease of use, participatory culture and interoperability for end users.

<span class="mw-page-title-main">Magnus Manske</span> German biochemist and MediaWiki developer

Heinrich Magnus Manske is a German biochemist, who is a leading researcher on malaria. He is a senior staff scientist at the Wellcome Sanger Institute in Cambridge, UK and a software developer of one of the first versions of the MediaWiki software, which powers Wikipedia and a number of other wiki-based websites.

<span class="mw-page-title-main">Wikimedia movement</span> Group of global contributors to Wikimedia projects

The Wikimedia movement is the global community of contributors to the Wikimedia projects, including Wikipedia. This community directly builds and administers these projects with the commitment of achieving this using open standards and software.

<span class="mw-page-title-main">History of wikis</span> History of wiki collaborative platforms

The history of wikis began in 1994, when Ward Cunningham gave the name "WikiWikiWeb" to the knowledge base, which ran on his company's website at c2.com, and the wiki software that powered it. The wiki went public in March 1995, the date used in anniversary celebrations of the wiki's origins. c2.com is thus the first true wiki, or a website with pages and links that can be easily edited via the browser, with a reliable version history for each page. He chose "WikiWikiWeb" as the name based on his memories of the "Wiki Wiki Shuttle" at Honolulu International Airport, and because "wiki" is the Hawaiian word for "quick".

<span class="mw-page-title-main">Mark Adler</span> American software engineer

Mark Adler is an American software engineer. He is best known for his work in the field of data compression as the author of the Adler-32 checksum function, and a co-author together with Jean-loup Gailly of the zlib compression library and gzip. He has contributed to Info-ZIP, and has participated in developing the Portable Network Graphics (PNG) image format. Adler was also the Spirit Cruise Mission Manager for the Mars Exploration Rover mission.

<span class="mw-page-title-main">Wikimedia Foundation</span> American charitable organization

The Wikimedia Foundation, Inc. (WMF) is an American 501(c)(3) nonprofit organization headquartered in San Francisco, California, and registered as a charitable foundation under local laws. It is best known as the host platform for Wikipedia, the largest crowdsourced online encyclopedia and the seventh most visited website in the world, but also hosts other related projects and MediaWiki, a wiki software.

<span class="mw-page-title-main">Wikimedia Commons</span> Online repository of free-use images, sounds and other media

Wikimedia Commons is a wiki-based media repository of free-to-use images, sounds, videos and other media. It is a project of the Wikimedia Foundation.

<span class="mw-page-title-main">GroupLens Research</span> Computer science research lab

GroupLens Research is a human–computer interaction research lab in the Department of Computer Science and Engineering at the University of Minnesota, Twin Cities specializing in recommender systems and online communities. GroupLens also works with mobile and ubiquitous technologies, digital libraries, and local geographic information systems.

<span class="mw-page-title-main">KMGi Group</span>

KMGi Group is a private holding of Internet companies, which includes KMGi Studios, Intuic, TransparentBusiness, and WikiExperts.

<span class="mw-page-title-main">WikiTrust</span> Software to assist in detecting vandalism and dubious edits

WikiTrust was a software product, available as a Firefox Plugin, which aimed to assist editors in detecting vandalism and dubious edits by highlighting the "untrustworthy" text with a yellow or orange background. As of September 2017, the server is offline, but the code is still available for download.

<span class="mw-page-title-main">Outline of Wikipedia</span> Overview of and topical guide to Wikipedia

The following outline is provided as an overview of and a topical guide to Wikipedia:

<span class="mw-page-title-main">Software Tools Users Group</span>

The Software Tools Users Group (STUG) was a technical organization started in 1976, in parallel with Usenix. The STUG goal was to develop a powerful and portable Unix-like system that could be implemented on top of virtually any operating system, providing the capabilities and features of Unix in a non-proprietary system. With its focus on building clean, portable, reusable code shared amongst multiple applications and runnable on any operating system, the Software Tools movement reestablished the tradition of open source and the concepts of empowering users to define, develop, control, and freely distribute their computing environment.

References

  1. Friedland, Gerald; Jain, Ramesh (July 28, 2014). Multimedia Computing. Cambridge University Press. p. 151. ISBN   978-0521764513.
  2. More, Max; Vita-More, Natasha (March 5, 2013). "Transhumanist Declaration 2012". The Transhumanist Reader: Classical and Contemporary Essays on the Science, Technology, and Philosophy of the Human Future. John Wiley & Sons. ISBN   978-1118555996.
  3. Brin, David (1999). The Transparent Society. Basic Books. p. 102. ISBN   9780738201443.
  4. "STUG Award". USENIX . 6 December 2011. Retrieved 2023-03-13.