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Jeet Sukumaran
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My trees go from top down, because it is easier to "grow" them that way when drawing on a white board. But in our field, trees also grow upwards as well as sideways. So I will try to avoid terms like "up" and "down" in formal documentation, using, if I can, the clumsier terms "rootward" and "tipward" (as well as distance-from-root, distance-from-tip, node age etc.) to avoid confusion. http://dpb.bitbucket.org/the-direction-of-the-tree-in-computer-science.html

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Automatically summarize the highlights of a soccer game based on volume of crowd in 25 lines of Python.
http://zulko.github.io/blog/2014/07/04/automatic-soccer-highlights-compilations-with-python/

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Yet another language performance comparison. Highlights include:
- "C++ and Fortran are still considerably faster than any other alternative"
- Python: "In the Pypy implementation, it runs around 44 times slower than in C++. In the default CPython interpreter, the code runs between 155 and 269 times slower than in C++. " 
- "R runs between 500 to 700 times slower than C++. If the code is compiled, the code is only between 240 to 340 times slower."
- "C++ compilers have advanced enough that, contrary to the situation in the 1990s and some folk wisdom, C++ code runs slightly faster (5-7 percent) than Fortran code."

http://economics.sas.upenn.edu/~jesusfv/comparison_languages.pdf

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Semantic highlighting instead of syntax highlighting. 

https://medium.com/programming-ideas-tutorial-and-experience/3a6db2743a1e

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Nice! Probably not going to replace my Zeiss 21 mm f/2.8 or Canon TS-E 24 mm f/2.8 for landscapes, but as a travel photography lens, a good complement to the (excellent) EF 70-200 f/4 IS L. 

http://www.the-digital-picture.com/News/News-Post.aspx?News=9678

Another few hundred reasons why R should not be used as a general purpose programming language (as opposed to a DSL for statistical computing and visualization). 

http://www.r-bloggers.com/you-can-scrap-it-and-write-something-better-but-let-me-keep-r/
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