Kaggle Rコンペ解法紹介

Kaggle Tokyo Meetup 裏 #01

Transcript

1. (PPHMF
   "OBMZUJDT
   $VTUPNFS
   3FWFOVF
   1SFEJDUJPO
   1VCMJD
   TU
   4PMVUJPO
   CFGPSF
   UIF
   DPNQFUJUJPO
   SFMBVODI 
   
   
   
   ,BHHMF
   ཪ.FFUVQ
   IBLVCJTIJO 8FMDPNF
   UP
   (PPHMF
   "OBMZUJDT
   $VTUPNFS
   3FWFOVF
   1SFEJDUJPO 1
2. ࣗݾ঺հ !2 ໊લ
   IBLVCJTIJO
   डୗ෼ੳձࣾͷσʔλαΠΤϯςΟετ
   ,BHHMFྺ
   
   
   ࠓ೔࿩͢ίϯϖ
3. ίϯϖͷ֓ཁ !3 w ಺༰
    (PPHMF
   .FSDIBOEJTF
   4UPSFͷސ٬͋ͨΓͷऩӹΛ༧ଌ͢Δ
   w ։࠵ظؒ
    
   ʙ
   
   w ࢖༻σʔλʹ͍ͭͯ
    (PPHMF
   BOBMZUJDTͰऔಘͰ͖Δσʔλ
    ֎෦σʔλΛ࢖༻Մೳ
   w ͦͷଞ
    ௨শ3ίϯϖʢओ࠵͕3TUVEJPʣ
4. w 3.4&
    Z@IBU
   JT
   UIF
   OBUVSBM
   MPH
   PG
   QSFEJDUFE
   SFWFOVF
   GPS
   B
   DVTUPNFS
    Z
   JT
   UIF
   OBUVSBM
   MPH
   PG
   UIF
   BDUVBM
   TVNNFE
   SFWFOVF
   WBMVF
   QMVT
   POF ධՁࢦඪ !4
5. w (PPHMF
   "OBMZUJDT͔ΒऔಘͰ͖Δσʔλͷ͏ͪҰ෦͕ఏڙ͞ΕΔ
    LFZ͸
   GVMMWJTJUPS*E
   WJTJU*E σʔλͷ֓ཁ !5 ม਺໊ ಺༰ ܕ GVMMWJTJUPS*E ϢʔβʔͷJE  WJTJU*E ηογϣϯͷJE  EBUF ηογϣϯͷ೔෇ %BUF USBOTBDUJPO3FWFOVF ηογϣϯதͷऩӹ /VNFSJD EFWJDF Ϣʔβʔͷ୺຤৘ใ $BUFHPSZ USB⒏D4PVSDF τϥϑΟοΫͷࢀরݩ৘ใ $BUFHPSZ HFP/FUXPSL ϢʔβʔͷҐஔ৘ใ $BUFHPSZ UPUBMT ηογϣϯதͷΞΫγϣϯʹؔ͢Δूܭ৘ใ /VNFSJD
6. w USBJOͷظؒ
   
   ʙ
   
   w UFTUͷظؒ
   
   
   ʙ
   
    ༧ଌ஋͸VTFS୯ҐͰࢉग़͢ΔͨΊɺQVCMJDͱQSJWBUFͷظؒ͸Ұக USBJO
   
   UFTU
   ظؒ !6   5SBJOʢ೥ʣ 5FTUʢϲ݄ʣ 
7. ίϯϖͷܦҢ
8. 
   
   MPHTVN
   PS
   TVNMPH
   ໰୊ !8 w ධՁࢦඪ͸ʮMPHTVNʯͰ͋Δ͕ɺԿނ͔ʮTVNMPHʯͰग़ྗͨ݁͠Ռͷ ํ͕-#είΞ͕ྑ͘ͳΔɻ ˣܭࢉ͸ਖ਼࣮͘͠ߦ͞Ε͍ͯΔΒ͍͠
9. 
   
   -FBEFSCPBSE
   6QEBUF ճ໨ !9 w ӡӦଆͷϛεʹΑΓɺʮTVNMPHʯͰ-#͕ܭࢉ͞Ε͍ͯͨ͜ͱ͕൑໌
10. 
    
    1VCMJD
    -#
    PWFSpUUJOH !10 w ͳΜ͔ͩΜͩͰ࢑ఆҐʹͳͬͯتͿ
11. 
    
    -FBLൃ֮ !11 w ωοτʹస͕͍ͬͯͨίϯϖσʔλ
     (PPHMF
    "OBMZUJDTͷσϞΞΧ΢ϯτΛ࢖ͬͯऔಘՄೳ
     UFTUͷظؒ͸ίϯϖ։࠵࣌ΑΓ΋લͰɺUFTUͷ৘ใ΋औಘͰ͖Δ
12. 
    
    -FBEFSCPBSE
    6QEBUF ճ໨ w σʔλظؒΛ৭ʑͱมߋͯ͠࠶ελʔτ   5SBJOʢ೥ϲ݄ʣ 1VCMJD
    ʢ̒ϲ݄ʣ  1SJWBUF
    ʢϲ݄ʣ     5SBJOʢ೥ʣ 5FTU ʢϲ݄ʣ  !12 ࠶ελʔτޙͷઃఆ ࠷ॳͷઃఆ
13. ղ๏঺հ
14. Ϟσϧͷશମ૾ !14 w ηογϣϯ୯ҐͷϞσϧͱϢʔβʔ୯ҐͷϞσϧͷΞϯαϯϒϧ ηογϣϯ୯ҐͷϞσϧ
    MJHIUHCN
    ηογϣϯຖͷऩӹΛ༧ଌ Ϣʔβʔ୯ҐͷϞσϧ
    MJHIUHCN
    Ϣʔβʔຖͷ૯ऩӹΛ༧ଌ Ϣʔβʔ୯ҐͷϞσϧ
    MJHIUHCN
    લஈͷ༧ଌ஋ͷجૅ౷ܭྔΛ
 ಛ௃ྔͱͯ͠࢖༻ ΞϯαϯϒϧʢFMBTUJDOFU
    TUBDLJOHʣ 1PTUQSPDFTTJOH
 UPUBM
    CPVODFT
15. w ࣌ؒํ޲Ͱަࠩݕূ͢ΔͷͰ͸ͳ͘ɺϢʔβʔຖʹ۠੾࣮ͬͯࢪ
     ηογϣϯ୯ҐͷϞσϧˠ(SPVQ,'PMEʢϢʔβʔͰ੾Δʣ
     Ϣʔβʔ୯ҐͷϞσϧˠ,'PMEʢηογϣϯ୯ҐϞσϧʹ߹ΘͤΔʣ
     ཧ༝ͱͯ͠͸
    㾎ΞϯαϯϒϧͷͨΊʹɺUSBJOσʔλͷશϢʔβʔͷPPG
    WBMVF USBJOظؒதͷ༧ଌऩӹͷ૯࿨ ͕ཉ͍͠
    㾎UJNFTQMJU΋࠷ॳͷஈ֊Ͱࢼ͍ͯ͠Δɻൺֱͨ݁͠ՌɺHSPVQLGPME Ͱ΋໰୊ͳͦ͞͏ͩͬͨ
    㾎QVCMJDͱQSJWBUFͷظؒ͸ಉ͡ͳͷͰɺίϯαόʹWBMJEBUJPOΛઃఆ ͠ͳͯ͘΋໰୊ͳ͍ͩΖ͏ͱ൑அʢQVCMJDΛ౰ͯʹ͍͚͹ྑ͍ʣ $7ʹ͍ͭͯ !15
16. w ͲͷΧςΰϦ৘ใ΋ׂͱϊΠδʔ
     ެ։LFSOFMͷ໊دͤॲཧͷ࠾༻ʴखಈ໊دͤΛ࣮ࢪ
     ޙͷಛ௃ྔ࡞੒Ͱޮ͍ͯ͘Δ෦෼ɺ͜͜ʹҰ൪࣌ؒΛ͔͚ͨ ΧςΰϦσʔλͷ໊دͤ !16 lEFWJDFPQFSBUJOH4ZTUFNzͷྫ
17. w ΧςΰϦσʔλͷಛ௃ྔ
     EFWJDFܥɺUSB⒏D4PVSDFܥ͸໊دͤͯ͠ΧςΰϦม਺Խ
     ਺஋σʔλΛΧςΰϦຖʹू໿ͯ͠ΤϯίʔσΟϯά
     ΧςΰϦม਺ͷຒΊࠐΈදݱʢ-%"ʣ
     5BSHFU
    FODPEJOH
     'SFRVFODZ
    FODPEJOH
    w ਺஋σʔλͷಛ௃ྔ
     UPUBMܥ
    
    CPVODFT
    IJUT
    QBHFWJFXT
    IJUT QBHFWJFXT  #BTJD
    'FBUVSFʢηογϣϯ୯Ґʣ !17
18. w ಛ௃ྔੜ੒ର৅ϨίʔυͷηογϣϯΛى఺ͱͯ͠ɺ௚ۙ௚ޙͷ৘ใΛ ू໿ͯ͠ಛ௃ྔͱͯ͠࠾༻͢Δ
     ݱ࣌఺ͷηογϣϯ͔Βকདྷ·ͨ͸աڈO೔ؒʹ͓͚Δ๚໰ճ਺
     ݱ࣌఺ͷηογϣϯ͔Βকདྷ·ͨ͸աڈO೔ؒʹ͓͚ΔIJUT
    QBHFWJFXT
    ͷ૯࿨
     ͭઌ·ͨ͸ͭޙͷηογϣϯ·Ͱͷܦա࣌ؒ 5JNF
    'FBUVSFʢηογϣϯ୯Ґʣ !18
19. w ΧςΰϦσʔλͷಛ௃ྔ
     FODPEJOH͔ͯ͠ΒϢʔβʔຖʹू໿
    w ਺஋σʔλͷಛ௃ྔ
     UPUBMܥ
    
    CPVODFT
    IJUT
    QBHFWJFXT
    IJUT QBHFWJFXT  Λ
 Ϣʔβʔ୯Ґʹू໿ #BTJD
    'FBUVSFʢϢʔβʔ୯Ґʣ !19
20. w ηογϣϯͷ࣌ؒ৘ใͷू໿
     65$ɺ-PDBM5JNFͷEBUF৘ใ EBZPGXFFL
    IPVS
    EBZ ΛɺDPT
    TJOʹ ෼ղ͔ͯ͠Βू໿ 5JNF
    'FBUVSFʢϢʔβʔ୯Ґʣ !20
21. w ηογϣϯͷ߹ܭώοτ਺ͱ߹ܭϖʔδϏϡʔ਺ͷൺ཰
     $7͸্͕Δ͕-#͸Լ͕Δ
     EJTDVTTJPOͷ౤ߘΛݟͯ΋ɺଞͷࢀՃऀ΋ಉ༷ͷݱ৅
     ཧ༝͸݁ہෆ໌͕ͩɺQBHFWJFXT
    
    IJUT
    SBUJPʹؔ͢Δಛ௃ྔΛݢฒ Έআ֎͢Δ͜ͱͰ-#͕େ্͖͘ঢ QBHFWJFXTIJUT
    SBUJPಛ௃ྔͷআ֎ !21 IUUQTXXXLBHHMFDPNDHBDVTUPNFSSFWFOVFQSFEJDUJPOEJTDVTTJPOMBUFTU
22. w CPVODFTͷ৘ใΛ࢖༻ͨ͠ޙॲཧ
     ίϯϖॳظ͔Βग़͍ͯͨ৘ใ
     ηογϣϯͷ௚ؼ৘ใϑϥάʢUPUBMTCPVODFTʣཱ͕͍ͬͯΔ͔Ͳ͏ ͔Ͱऩӹ͕͋Δ͔ͳ͍͔͕൑அՄೳ
     ϑϥάཱ͕͍ͬͯΔηογϣϯͷऩӹ༧ଌ஋Λʹஔ׵ 1PTUQSPDFTTJOH !22 IUUQTXXXLBHHMFDPNDHBDVTUPNFSSFWFOVFQSFEJDUJPOEJTDVTTJPOMBUFTU