User:Dcoetzee.html

This user is an administrator on the English Wikipedia. (verify)

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en	This user is a native speaker of English.

fr-2

Cet utilisateur sait contribuer avec un niveau intermédiaire en français.

et-1

See kasutaja suudab eesti keeles kaastööd teha algaja tasemel.

af-0

Hierdie gebruiker kan nie Afrikaans praat nie (of verstaan dit met groot moeite).

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This user has adopted WillT.Net.

This user identifies as polyamorous.

In the interest of promoting good cheer and bonhomie, you are hereby granted the coveted:
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(Explanation and Disclaimer)

Hi! I'm Derrick Coetzee, an American software developer at Microsoft Research carrying a masters in computer science and bachelor degrees in computer science and mathematics, and an administrator on the English Wikipedia and Wikimedia Commons. I'm currently applying to PhD school for Fall 2009. In addition to my primary background I also have some experience with graphical design, photography, and writing, so I wanted to get involved with this project in order to help all the people out there who need the info. Since I joined Wikipedia in 2003 I've found working on articles strangely addicting, and hope to continue to do so, if sparingly, for a long time.

Please feel free to leave a message on my talk page or e-mail me if there's anything I can help you with, or if you just want to chat. If you want to talk on IM, just e-mail me and ask for my contact information.

I am a member of WikiProject Mathematics, WikiProject Computing, and WikiProject Computer science. When I'm on IRC I'm usually on #wikipedia, #wikimedia-social, #wikipedia-en, #wikipedia-en-admins, #wikimedia-commons, and #vandalism-en-wp and my IRC nick is Dcoetzee.

I've contributed a significant amount of content to each of the articles listed in the Articles section below; not all articles I've edited significantly are listed, see my user contributions for more. I've created diagrams and taken photos for several pages, although most of my image work these days is on Wikimedia Commons, where I've also done a lot of image cleanup work (see my user page there). I've also done extensive disambiguation, page moving, link fixing, editing for wording and clarity, RC and new page patrol, fact checking, adding redirects, and many other minor editing tasks — most of my work is not reflected on this page.

To summarize my Wikipedia philosophy: I try to be moderate and give thought to each issue that arises, not consigning myself to labels, but in general I would call myself a tolerant inclusionist. I follow the spirit of the rules but not always their letter; the most important rules to me are don't bite the newbies and "assume ignorance, not malice", because editors are our lifeblood. I tend to prefer normal editing work to administravia despite my status, and I believe the most important contributions are the addition of new raw text and ideas to articles, however unpolished it is. None of this is to say that I don't become very frustrated on occasion; when I feel that I'm losing objectivity, I try to withdraw.

License of my work

Informally, all article changes are public domain, all others are GFDL.

I, Derrick Coetzee, irrevocably release all rights to my text contributions to any main namespace article, template, portal, or category page, granting them into the public domain where this is legally possible. However, I retain ownership under the GFDL of all other changes, including any change to any project page, talk page, or user page. I make no license statement regarding images or contributions on other wikis here.

Todo

Index_(database) - Add info on structure and implementation
Quantified Boolean formula problem - Do merge
Shortest path problem - Diagrams for the various algorithms
Read the STM book and expand Software transactional memory and create subarticles
Bloom filter - fix description of Bloomier filter insertion
Expand Schonhage-Strassen algorithm with example
Expand Bitonic sorter
Diagram for Threaded binary tree
Write Funnelsort, Funnel (data structure), and other cache-oblivious related stuff
Photograph people in my building with Wikipedia articles

Essays

These are essays I've written on various topics related to Wikipedia.

On other wikis

Commons:User:Dcoetzee
See rest in interwiki links on left

Articles

Compilers

Topology

Other math

Bimodal distribution
Connected component
Matroid (weighted matroids and greedy algorithms, proofs of examples' properties, references/most of history)
Nicholas Mercator
Skew line

Entertainment

Horses

Glycogen Branching Enzyme Deficiency
Hyperkalemic Periodic Paralysis (all but intro)
Impressive (horse)
Lethal white syndrome

Other

Images

See also my Commons page.

Music samples

Diagrams

Binary tree (more "random" than BST)
Diagram of a directed acyclic graph
Diagram of a proof that the Euclidean minimum spanning tree is contained in the Delaunay triangulation
Diagram demonstrating overlapping subproblems in Fibonacci sequence, for dynamic programming page
Iterated logarithm diagram
n-ary to binary tree conversion: based strongly on the previous textual version
Red-black tree example
Red-black tree node insertion case 3 diagram
Red-black tree node insertion case 4 diagram
Red-black tree node insertion case 5 diagram
Red-black tree node deletion case 2 diagram
Red-black tree node deletion case 3 diagram
Red-black tree node deletion case 4 diagram
Red-black tree node deletion case 5 diagram
Red-black tree node deletion case 6 diagram
Singly linked list
SSA example 1 figure 1
SSA example 1 figure 2
SSA example 1 figure 3
Tagged union tree: Tree type expressed as a tagged union diagram
Trie example: Trie, not tree
VList
Strait: like the water channel kind
Parabola: Just a parabola, no decorations
Penrose triangle: A piece of Image:Impossible objects.png, for a more specific article
Georgia Tech Student Center Sidewalk: took this photo at school
A complete binary tree stored in an array
Image:Insertionsort-before.png
Image:Insertionsort-after.png
Image:Doubly linked list insert after.png
Image:Singly linked list delete after.png
Image:Singly linked list insert after.png
Image:Network effect.png

Photos

Atlanta from Smyrna
The annual Duluth Fall Festival (actually my mom took this one)
Memorial plaque to Favero family, victims of a particular plane crash
Image:Cadiz courthouse with sign.jpg
Image:Wright City water tower.jpg
Image:GeorgiaTechStudentCenterSidewalk.jpgen:User:Dcoetzeetlh:User:Dcoetzee