Introducing Julia - Speaker Deck

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Babel guide 5 Languages in 13 Weeks ! Sorami Hisamoto Computational Linguistics Lab. Nara Institute of Science & Technology November 15, 2013 Bruegel - The tower of Babel @ sorami

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To casually introduce the languages I played with this summer.

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I N S P I R AT I O N S ݩ ωλ

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Image: www.photo-ac.com/main/detail/44086

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T O U R D E B A B E L Image: www.ashinari.com/2013/09/11-381896.php Steven Yegge

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T O U R D E B A B E L Image: www.ashinari.com/2013/09/11-381896.php Python  Ruby  Java  Perl  C++  Lisp  C Steven Yegge

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T O U R D E B A B E L Image: www.ashinari.com/2013/09/11-381896.php Original Essay ⽇日本語訳 Python  Ruby  Java  Perl  C++  Lisp  C Steven Yegge

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Image source

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“C++ is the dumbest language on earth” C++は地上でもっともバカな⾔言語だ。 Image source

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“The original brilliant guys and gals here only allowed two languages in Amazon's hallowed source repository: C and Lisp” 初期にいたすばらしい⼈人たちは、Amazonの神聖なるソースリポジトリに 2種類の⾔言語しか⼊入れることを許さなかった。CとLispだ。 “C++ is the dumbest language on earth” C++は地上でもっともバカな⾔言語だ。 “Java is simultaneously the best and the worst thing that has happened to computing in the past 10 years.” Javaは過去10年においてコンピューティングの世界に起きた最良かつ最悪のことだ。 “.. Sperm Whale that exploded in the streets of Taiwan over the summer. Whale guts everywhere, covering cars, motorcycles, pedestrians. That's Perl. It's charming, really.” Perlは夏の台湾の通りの上で破裂したマッコウクジラだ。はらわたがそこら中に飛び散って、⾞車や⾃自転⾞車や歩⾏行者を覆っている。それがPerlだ。本当にチャーミングだ。 Image source

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# 1 P Y T H O N

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Productivity Community Image source

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Productivity Community Speed Image source

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# 2 S C A L A

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Programming Seminars @ NAIST Computational Linguistics Lab.

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Programming Seminars @ NAIST Computational Linguistics Lab.

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Good, but …

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Complex! Good, but …

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# 3 G O

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www.meetup.com/nyhackr/events/132413222/

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www.meetup.com/nyhackr/events/132413222/

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Slide Video Image: golang.org/doc/gopher/

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# 4 C L O J U R E

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Image: en.wikipedia.org/wiki/Rich_Hickey

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Image: en.wikipedia.org/wiki/Rich_Hickey Rich Hickey's Greatest Hits

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Image: arcweb.archives.gov/arc/action/ExternalIdSearch?id=548253 logic programming library core.logic

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http://www.lighttable.com/

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http://getprismatic.com/

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# 5

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New language for Technical Computing 2012~. Started in MIT. Active community.

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New language for Technical Computing 2012~. Started in MIT. Active community. High-level & Dynamic Sophisticated type system. Multiple dispatch.

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New language for Technical Computing 2012~. Started in MIT. Active community. High-level & Dynamic Sophisticated type system. Multiple dispatch. High Performance  JIT Compiler. Comparable to C and Fortran.

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Why new language?

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Why new language? Two-tier Architectures High-level logic in dynamic language e.g. Python Heavy lifting in low-level language e.g. C, Fortran

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Why new language? Compromise between convenience & performance. Two-tier Architectures High-level logic in dynamic language e.g. Python Heavy lifting in low-level language e.g. C, Fortran

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Why new language? Compromise between convenience & performance. Two-tier Architectures We want to do everything in one productive language! High-level logic in dynamic language e.g. Python Heavy lifting in low-level language e.g. C, Fortran

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Speed up existing languages?

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Speed up existing languages? Language design under assumption it would be implemented as an interpreter.

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Speed up existing languages? Language design under assumption it would be implemented as an interpreter. Sabotages ability to generate efﬁcient code.

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Table: julialang.org/

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Graph: github.com/ViralBShah/julia-presentations/raw/master/Fifth-Elephant-2013/Fifth-Elephant-2013.pdf

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Code: julialang.org/

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C github.com/JuliaLang/julia/blob/master/test/perf/micro/perf.c

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C Julia github.com/JuliaLang/julia/blob/master/test/perf/micro/perf.c julialang.org/

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M U LT I P L E D I S PAT C H code: docs.julialang.org/en/latest/manual/methods/

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M U LT I P L E D I S PAT C H code: docs.julialang.org/en/latest/manual/methods/ "The Design Impact of Multiple Dispatch" Stefan Karpinski @ Strange Loop

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H O M O I C O N I C I T Y C O D E A S D ATA

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H O M O I C O N I C I T Y C O D E A S D ATA Macros!

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docs.julialang.org/en/latest/packages/packagelist/

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MCMC, Optimisations, Linear Models, Text Analysis, Time Series, OpenGL, DataFrames, Arduino, CUDA, Visualisation, etc… docs.julialang.org/en/latest/packages/packagelist/

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IJulia Ipython for Julia ! Powerful browser-based graphical notebook Image: julialang.org/

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http://forio.com/julia/

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cpplover.blogspot.jp/2012/04/pythonjulia.html

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cpplover.blogspot.jp/2012/04/pythonjulia.html “I believe Julia and Python is a match made in heaven” - Dag Sverre Seljebotn (Cython core developer) Julia, Python and Cython - julia-dev | Google Groups

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conference.scipy.org/scipy2013/presentation_detail.php?id=203

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W H Y P Y T H O N I S T H E L A S T L A N G U A G E Y O U ' L L H AV E T O L E A R N Jake Vanderplas jakevdp.github.io/blog/2012/09/20/why-python-is-the-last/

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www.mit.edu/~mlubin/juliacomputing.pdf

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ex.nicovideo.jp/denou/tournament/

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ex.nicovideo.jp/denou/tournament/

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ex.nicovideo.jp/denou/tournament/ Julia adpoted by a team at the computer shogi (Japanse chess) tournament.

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メカ⼥女⼦子将棋アピール⽂文書☆

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メカ⼥女⼦子将棋アピール⽂文書☆ “Software re-implemented in Julia overwhelmed existing one in C/C++, so we decided to use the Julia-version for the tournament”

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julialang.org New language for Technical Computing 2012~. Started in MIT. Active community. High-level & Dynamic Sophisticated type system. Multiple dispatch. High Performance  JIT Compiler. Comparable to C and Fortran.

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‣ Julia: A Fast Dynamic Language for Technical Computing Academic paper ‣ An introductory presentation ‣ Learn X in Y minutes - where X=julia ‣ Videos from the Julia tutorial at MIT ‣ Julia tutorial @ DataGotham2013 ‣ Forio Julia tutorial ‣ Project Euler with Julia ‣ Linear Models with Julia ‣ “Julia: A Fast Dynamic Language for Technical Computing” @ SciPy 2012 ‣ “Julia and Python: a dynamic duo for scientific computing” @ SciPy 2013 G E T T I N G S TA R T E D …