python 機械学習について

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1. ςΩετ ػցֶशʹ͍ͭͯ ླ໦޹೭ɹ2016/04/30
2. ػցֶशͱ͸ ίϯϐϡʔλʔͰΞϧΰϦζϜΛߏங͠ɺֶशσʔ λΛಡΈࠐ·ͤΔ͜ͱͰɺࣗಈతʹࠓ͋ΔσʔλΛ ෼ྨˍ·ͩݟ͵σʔλΛ༧ଌͰ͖ΔΑ͏ʹ͢Δ΋ͷ ώτͷ৘ใॲཧೳྗΛ௒͑ͯɺෳࡶͳσʔλΛ෼ྨ ˍ༧ଌͰ͖ΔΑ͏ʹ͢Δ΋ͷ
3. Scikit-learnͬͯͳʹʁ PythonͰ࡞ΒΕͨػցֶशϥΠϒϥϦ ແྉɾ༗ྉؚΊͯɺίϨ΄Ͳॆ࣮ͨ͠ϥΠϒϥϦ͸ଞʹͳ͍ ๛෋ͳ෼ྨثͱ(΄΅)౷ҰԽ͞ΕͨAPI ݕূ࡞ۀΛࢧ͑Δػೳ Numpy, ScipyΛ࢖༻ͨ͠ߴ଎ͳԋࢉ http://scikit-learn.org/
4. ਎ͷճΓʹ͋Δػցֶशͷࣄྫ εύϜ൑ఆɿ ϝʔϧ͕εύϜ͔൱͔Λ൑ఆ Ϧίϝϯυɿʮ͜ͷ঎඼Λങͬͨਓ͸͜Μͳ঎඼΋ ങ͍ͬͯ·͢ʯ ը૾ೝࣝɿ PicasaͷإೝࣝػೳͳͲ
5. ػցֶश͕ಘҙͱ͢Δ໰୊ େྔͷσʔλΛ࢖ͬͯɺະ஌ͷσʔλΛ෼ྨ ※গྔσʔλͳΒਓ͕ؒؤுͬͨํ͕ૣ͍ ⚪⚪ͱ͍͏୯ޠ͕͋Ε͹εύϜɺͱ͍͏ύλʔϯΛ࡞ ੒
6. ػցֶशͷ෼ྨ ڭࢣ෇͖ ਖ਼ղσʔλ͕༩͑ΒΕ͍ͯΔ ະ஌ͷσʔλʹର͢Δ༧ଌΛߦ͏ ڭࢣͳ͠ ਖ਼ղσʔλ͕༩͑ΒΕ͍ͯͳ͍ ະ஌ͷσʔλ͔ΒنଇੑΛൃݟ͢Δ
7. ڭࢣ෇͖ͱڭࢣͳֶ͠शͷҧ͍ ڭࢣ෇͖ ڭࢣͳ͠ ը૾σʔλ͕͋Δ͚ͩͰɺֶ शΞϧΰϦζϜ͸ɺ ͜ͷσʔλ͚ͩΛΈͯ͜ͷσʔ λͷੑ࣭Λ୳Γ·͢ɻ ͢Δͱɺେମ0͔Β9·Ͱͷ10 छྨͷύλʔϯʹେ͖͘෼͚ Δ͜ͱ͕Ͱ͖·͢ɻ ͜ͷΑ͏ ʹσʔλ͚͔ͩΒͦͷنଇੑ ΛֶͼऔΔͷ͕ڭࢣͳֶ͠श Ͱ͢ɻ
8. ڭࢣ෇ֶ͖शͷֶशํ๏(ೖྗ) ೖྗͱɺͦΕʹର͢Δग़ྗ(ਖ਼ղ)ͷϖΞΛͨ͘͞Μ༻ ҙ͢Δ ͨ͘͞Μଟ͚Ε͹ଟ͍΄͏͕๬·͍͕͠1000Ҏ্͸ ཉ͍͠ →σʔλͷαϯϓϧ͋Γ
9. ڭࢣ෇ֶ͖शͷग़ྗͷදݱ ظ଴͢Δ݁ՌΛચ͍ग़͠ɺ਺஋Խ͢Δ ਺஋͸ҙຯ͕͋Δ৔߹ͱ୯ͳΔϥϕϦϯάͷ৔߹͕͋ Δ ਺஋ը૾ͷྫͰ͋Ε͹ɺ0ʙ9 ϥϕϧͷྫ Έ͔Μ → 1, ΓΜ͝ → 2, όφφ → 3, …
10. ࠓճ΍Δ͜ͱ ڭࢣ෇ֶ͖शͰੵઇͷ༗ແΛ༧ଌ͢Δɻ ؾ৅ிͷؾ৅σʔλ͔Βɺੵઇͷଟ͍෋ࢁݝͷ౑೾ࢢͷ ؾ৅σʔλΛֶशσʔλͱͯ͠࢖༻ ্هͷؾ৅ிͷαΠτͰ͸ඞཁͳ߲໨Λબ΂ΔͷͰ͕͢ɺ ؾԹ ɺੵઇ ɺ෩଎ ɺ෩޲ ɺ߱ਫྔ Λબ୒͠·ͨ͠ɻ 2004೥͔Β2015೥ͷ2݄ɺ3݄ͷσʔλ
11. CSVσʔλαϯϓϧ μ΢ϯϩʔυͨ࣌͠ࠁɿ2016/03/20 20:31:19 ,౑೾,౑೾,౑೾,౑೾,౑೾,౑೾,౑೾,౑೾,౑೾,౑೾,౑೾,౑೾,౑೾,౑೾ ೥݄೔࣌,ؾԹ(℃),ؾԹ(℃),ؾԹ(℃),ੵઇ(cm),ੵઇ(cm),ੵઇ(cm),෩଎(m/s),෩଎(m/s),෩଎(m/s),෩଎(m/s),෩଎(m/s), ߱ਫྔ(mm),߱ਫྔ(mm),߱ਫྔ(mm) ,,,,,,,,,෩޲,෩޲,,,, ,,඼࣭৘ใ,ۉ࣭൪߸,,඼࣭৘ใ,ۉ࣭൪߸,,඼࣭৘ใ,,඼࣭৘ใ,ۉ࣭൪߸,,඼࣭৘ใ,ۉ࣭൪߸ 2013/2/1 1:00:00,-3.3,8,1,3,8,1,0.4,8,੢,8,1,0.0,8,1 2013/2/1 2:00:00,-3.7,8,1,3,8,1,0.3,8,๺,8,1,0.0,8,1 2013/2/1 3:00:00,-4.0,8,1,3,8,1,0.2,8,੩Ժ,8,1,0.0,8,1 2013/2/1 4:00:00,-4.8,8,1,3,8,1,0.9,8,ೆೆ౦,8,1,0.0,8,1
12. ࣮ߦͷྲྀΕ ᶃؾ৅ிͷCSVσʔλΛ ಡΈࠐΜͰɺઇ͕ੵ΋Δ ύλʔϯΛֶश ੵઇྔ(cm)Λड͚औΓɺ ੵઇ͕͋Ε͹̍ɺͳ͚Ε͹0Λฦ͢ ̍Ϩίʔυ୯ҐͰੵઇϑϥά͕ ཱͭΠϝʔδ ᶄֶ֤शϞσϧͷλΠϓผʹείΞΛ ܭࢉ͠ɺ΋ͬͱ΋είΞͷߴ͍ λΠϓͷΦϒδΣΫτΛ Πϯελϯεม਺ʹͱ͓ͬͯ͘. ᶄϦΫΤετ͔ΒૹΒΕ͖ͯͨ ύϥϝʔλΛݩʹࠓ·Ͱͷ৘ใΛ ݩʹੵઇʹͳΔ͔༧ଌ͢Δ pythonͷγΣϧΛ࣮ߦ
13. ࠓޙ΍ͬͯΈ͍ͨ͜ͱ Ϣʔβͷଐੑ෼ੳ هࣄͷϨίϝϯυ →CSVσʔλΛಡΈࠐΜͰɺϥϕϧ෇͚ͷج४Λॻ ͖׵͑Ε͹Ԡ༻͖͖ͦ͏ ͳͲ
14. ࢀߟจݙ http://www.slideshare.net/AtsushiKanaya/scikitlearn? next_slideshow=1 http://qiita.com/hiroeorz@github/items/ 997577f0dbbb9460957d