Ruby for the machine learning projects

Transcript

1. ػցֶशͷ ϓϩδΣΫτͰ RubyΛ࢖͏ 2018.07.29 TokyuRubyKaigi @cesare a.k.a. SAWADA Tadashi
2. ࣗݾ঺հ ▸ @cesare ▸ ୔ాਖ਼ ▸ Rails ͳαʔϏεͷ։ൃ ▸ ػցֶश ▸ Πϯϑϥۀ ▸ etc
3. ຊ೔ͷςʔϚ ▸ ػցֶशͰ Ruby Λ࢖͏
4. ػցֶशͰ Ruby Λ࢖͏ ▸ Ruby ͰػցֶशΞϧΰϦζϜΛͿΜճ͢
 ͱ͍͏࿩Ͱ͸͋Γ·ͤΜ ▸ ػցֶशͷϓϩδΣΫτͰ΋ Ruby ͷ࢖͍ॴ͋ΔΑʂ
 ͱ͍͏࿩Λ͠·͢
5. ػցֶशͱ͍͑͹ ▸ ͍͍ͩͨ Python Ұ୒ ▸ ϥΠϒϥϦ͕ॆ࣮ͯ͠Δ ▸ numpy, scikit-learn, TensorFlow, etc
6. Ruby ࢖͍ͱ Python ▸ ͋Δ Ruby ࢖͍ᐌ͘
 ʮend ͕ͳ͍ͱམͪண͔ͳ͍ʯ ▸ Θ͔Δ
7. طࢹײ ▸ ͱ͋Δݹͷݴޠ࢖͍ᐌ͘
 ʮׅހ͸ݟ͑ͳ͘ͳΔʯ ▸ ·ͨ·ͨɺ͝৑ஊΛ (defn fetchWikipediaArticleAsynchronously [wikipediaArticleNames] "Fetch a list of Wikipedia articles asynchronously. return Observable<String> of HTML" (Observable/create (rx/action [observer] (let [f (future (doseq [articleName wikipediaArticleNames] (-> observer (.onNext (http/get (str "http://en.wikipedia.org/wi ; after sending response to onnext we complete the sequence (-> observer .onCompleted))] ; a subscription that cancels the future if unsubscribed (.add observer (Subscriptions/create (rx/action [] (future-cancel f))))))) ; To see output (comment (-> (fetchWikipediaArticleAsynchronously ["Tiger" "Elephant"]) (.subscribe (rx/action [v] (println "--- Article ---\n" (subs (:body v) 0 125)
8. Python ͷ৔߹ ▸ ׳ΕΔͱ end ͕ݟ͑ΔΑ͏ʹͳΔ ▸ ͓લ͸ԿΛݴ͍ͬͯΔΜͩ
9. ͪΐͬͱࢼͯ͠Έ·͠ΐ͏ class Foo: def bar(self): if bar == baz: return 123
10. ͪΐͬͱࢼͯ͠Έ·͠ΐ͏ class Foo: def bar(self): if bar == baz: return 123 end end end
11. ͪΐͬͱࢼͯ͠Έ·͠ΐ͏ class Foo: def bar(self): if bar == baz: return 123 end end end
12. ͪΐͬͱࢼͯ͠Έ·͠ΐ͏ class Foo: def bar(self): if bar == baz: return 123 end end end
13. ͪΐͬͱࢼͯ͠Έ·͠ΐ͏ class Foo: def bar(self): if bar == baz: return 123 end end end ͜ͷ͋ͨΓʹ end ͕ ݟ͑ΔΑ͏ͳؾ͕ ͖ͯͨ͠Ͱ͠ΐʁ
14. ݁࿦ ▸ Python ා͘ͳ͍Αʂ
15. ؓ࿩ٳ୊
16. ػցֶशͰͷ Ruby ͷ࢖͍Ͳ͜Ζ ▸ ݁࿦: લॲཧͰग़൪͍ͬͺ͍͋Δ
17. ػցֶशͷϓϩηε ▸ σʔλΛ४උ͢Δ ▸ ֶशɾ൑ఆ͢Δ
18. ػցֶशͷϓϩηε ▸ σʔλΛ४උ͢Δ ▸ ֶशɾ൑ఆ͢Δ TensorFlow ͱ͔ͷ ग़൪͸ίί
19. ػցֶशͷϓϩηε ▸ σʔλΛ४උ͢Δ ▸ ֶशɾ൑ఆ͢Δ TensorFlow ͱ͔ͷ ग़൪͸ίί ͜͜͸ Python Ͱͳͯ͘΋͍͍
20. ػցֶशͷલॲཧʢ֓ཁʣ ▸ ੜσʔλΛ͍ͬͺ͍ूΊΔ ▸ ը૾, RDB, ςΩετ etc ▸ σʔλͷܗࣜΛ੔͑Δ ▸ ը૾αΠζΛἧ͑Δ, ςΩετΛ੔ܗ͢Δ etc ▸ ਺஋͕ೖͬͨߦྻΛ࡞Δ ▸ ͜͜·ͰͰ͖Ε͹ɺ͋ͱ͸ΞϧΰϦζϜʹ৯ΘͤΔ
21. લॲཧͷྫʢࣗવݴޠॲཧͷ৔߹ʣ ▸ Unicode ਖ਼نԽɺදه༳Εରॲ ▸ HTMLλάআڈ ▸ ༨ܭͳจࣈͷআڈ ▸ ܗଶૉղੳ
22. લॲཧͷྫʢࣗવݴޠॲཧͷ৔߹ʣ ▸ Unicode ਖ਼نԽɺදه༳Εରॲ ▸ HTMLλάআڈ ▸ ༨ܭͳจࣈͷআڈ ▸ ܗଶૉղੳ Python Ͱͳͯ͘΋Ͱ͖ΔྖҬ
23. લॲཧ͸ Python Ͱͳͯ͘΋Ͱ͖Δ ▸ Ruby ͷग़൪ ▸ ׳ΕͯΔ͔Β ▸ Python ʹ׳ΕΖͱ͍͏ποίϛ͸ฉ͑͜·ͤΜ
24. ༧૝͞ΕΔٙ໰ ▸ ٙ໰:
 લॲཧ͔Βػցֶश·Ͱ1ϓϩηεͰҰؾ௨؏ʹͨ͠ํ͕ޮ ཰Α͍ͷͰ͸ʁ ▸ ౴͑:
 গͳ͘ͱ΋ɺࢼߦࡨޡஈ֊Ͱ͸ٯޮՌʹͳΔ
25. ػցֶशͷࢼߦࡨޡ ▸ લॲཧ ▸ RDB ͔Βσʔλऔಘ (਺10ສ݅ͱ͔) ▸ Unicode ਖ਼نԽ, HTMLλάআڈ, ܗଶૉղੳ etc ▸ ֶशɾ൑ఆϓϩηε (TensorFlow ͱ͔) ▸ ύϥϝʔλΛௐ੔ͯ͠܁Γฦ͠
26. ػցֶशͷࢼߦࡨޡ ▸ લॲཧ ▸ RDB ͔Βσʔλऔಘ (਺10ສ݅ͱ͔) ▸ Unicode ਖ਼نԽ, HTMLλάআڈ, ܗଶૉղੳ etc ▸ ֶशɾ൑ఆϓϩηε (TensorFlow ͱ͔) ▸ ύϥϝʔλΛௐ੔ͯ͠܁Γฦ͠ ͜͜Λ͍Ζ͍Ζࢼ ͍ͨ͠
27. ػցֶशͷࢼߦࡨޡ ▸ લॲཧ ▸ RDB ͔Βσʔλऔಘ (਺10ສ݅ͱ͔) ▸ Unicode ਖ਼نԽ, HTMLλάআڈ, ܗଶૉղੳ etc ▸ ֶशɾ൑ఆϓϩηε (TensorFlow ͱ͔) ▸ ύϥϝʔλΛௐ੔ͯ͠܁Γฦ͠ ͜͜Λ͍Ζ͍Ζࢼ ͍ͨ͠ ͬͪ͜͸ॲཧࡁΈ ͷ΋ͷΛ࢖͍ճ͠ ͍ͨ
28. ػցֶशͷࢼߦࡨޡ ▸ લॲཧ ▸ RDB ͔Βσʔλऔಘ (਺10ສ݅ͱ͔) ▸ Unicode ਖ਼نԽ, HTMLλάআڈ, ܗଶૉղੳ etc ▸ ֶशɾ൑ఆϓϩηε (TensorFlow ͱ͔) ▸ ύϥϝʔλΛௐ੔ͯ͠܁Γฦ͠ ͜͜Λ͍Ζ͍Ζࢼ ͍ͨ͠ ͬͪ͜͸ॲཧࡁΈ ͷ΋ͷΛ࢖͍ճ͠ ͍ͨ ϓϩηεΛ෼͚ͨํ͕ḿΔ
29. ͱ͍͏Θ͚Ͱɺ ▸ લॲཧͱֶशɾ൑ఆͰ޻ఔΛ෼͚ͨํ͕౎߹͕͍͍ ▸ ޙऀ͸ Python ʹ೚ͤΔ ▸ લऀ͸ Python Ͱͳͯ͘΋͍͍ ▸ ࢖͍׳Εͨ Ruby Ͱ΍Ζ͏ ▸ ͭ·ΓɺػցֶशͷϓϩδΣΫτͰ΋ Ruby ͷग़൪͸͋Δ