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実践 PyTorch Lightning (2019/11/30 分析コンペLT会 #1)
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fam_taro
November 30, 2019
Technology
3
4.5k
実践 PyTorch Lightning (2019/11/30 分析コンペLT会 #1)
2019/11/30 分析コンペLT会 #1 で LT させていただいたスライドです。
https://kaggle-friends.connpass.com/event/154881/
fam_taro
November 30, 2019
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Transcript
࣮ફ 1Z5PSDI-JHIUOJOH !GBN@UBSP ੳίϯϖ-5ձ !͔͙ΔʔͲ
ࣗݾհ ໊લ౻ຊ༟հ 5XJUUFS!GBN@UBSP ུྺ ૣҴాେֶେֶӃम࢜՝ఔमྃ ࣗવݴޠॲཧ
4*FS ۚ༥ܥ ݣձࣾ 42- /PX-1*9&- ۦ͚ग़͠ ,BHHMF.BTUFS ઌʑि ͳΓ·ͨ͠ʂ
࠷ۙͷίϯϖྺ ࣌ظ ,BHHMFίϯϖ ίϝϯτ ݄ 4**."$31OFVNPUIPSBY 4FHNFOUBUJPO ؾڳίϯϖ 5PQ
ॳ(PME ɻͨͩ͠ 1Z5PSDIʹΑΔେ͖ͳෛͷҨ࢈Λ ࡞ͬͯ͠·ͬͨ ݄ 4FWFSTUBM4UFFM%FGFDU %FUFDUJPO మίϯϖ 5PQ 1Z5PSDI-JHIUOJOHσϏϡʔ രࢮ ݄ 34/"*OUSBDSBOJBM )FNPSSIBHF%FUFDUJPO ίϯϖ 5PQ Θʔ͍ʂʢ!"QQJBO͞ΜͷίʔυΛؙύΫϦͯࣗ͠ Ͱॻ͜͏ͱ͠ͳ͔ͬͨʣ ݄ 6OEFSTUBOEJOH$MPVETGSPN 4BUFMMJUF*NBHFT Ӣίϯϖ 5PQ 1Z5PSDI-JHIUOJOHϦϕϯδ ͳΜͱ͔ 4PMP4JMWFS
࣍ എܠ 1Z5PSDI-JHIUOJOHͱ 4UBSU1Z5PSDI-JHIUOJOH 1Z5PSDI-JHIUOJOHͷҙ
ײͱ݁ ͓·͚ɿίϯϖʹ͑͏Δ 1Z5PSDI-JHIUOJOH
ҙࣄ߲ • 1Z5PSDIͷ༻͕લఏͱͳ͍ͬͯ·͢ • ͍ͬͯͳ͍ਓ͝ΊΜͳ͍͞ʢศར͔ͩΒ͓͢͢ΊͰ͢Αʣ • ͔ͭ͋Δఔͬͨਓ͕ϝΠϯλʔήοτͰ͢ • ͱ͜ΖͲ͜ΖςΫχΧϧͳ୯ޠ͕͋Δ͔͠Ε·ͤΜ •
ύοτݟΑ͔͘Βͳ͔ͬͨΒ͍ͭͰฉ͍͍ͯͩ͘͞ • ࠓճͷίʔυ Ӣίϯϖ༻ Լهʹஔ͍ͯ͋Γ·͢ • IUUQTHJUIVCDPNZVLLZP,BHHMF6OEFSTUBOEJOH$MPVETUITPMVUJPO • ͜ͷ -5Ͱ QZUPSDIMJHIUOJOHΛఆ͍ͯ͠·͢ • ͢Ͱʹ࠷৽൛ Ͱ͢͝ΊΜͳ͍͞
എܠ • 1Z5PSDIͨͷ͍͠ʂ • ωοτϫʔΫߏม͑Δͷָ • -PTTपΓ͍͡Δͷָ • ࣗͰ৭ʑ͍͡ΕΔͷͰཧղ͍͢͠ •
ͳΜ͔ͨͷ͍͠ʂ • 1Z5PSDIͰίϯϖࢀՃ͢Δͷ΄Μͱͨͷ͠ʔʂ
ؾڳίϯϖΛऴ͑ͨ͋Δͷ͜ͱʜ ͞ʔͯͷ ̈(PME4PMVUJPÖ ͍·Θͪ͠Ό͏ͧʔʂ
͕͔ͩ͠͠ʜ
• ίʔυԚ͗͢ • ϝιου͗͢ • ৭Μͳͱ͜Ζʹ৭Μͳͷ͕͋Δ • ୭ͩΑ͜ͷίʔυॻ͍ͨͷ • ͪΖΜࣗͰ͋Δ
• ίϯϖதແզເத͚ͩͬͨͲʜ • ͏͍ͨ͘ͳ͍
Ԛ͘ͳͬͨཁҼ • ࣗͰॻ͘ USBJO@B@FQPDI • ແݶʹਂ͘ͳΔ GPSϧʔϓʢFQPDI CBUDI FUDʜ •
ແݶʹ૿͑ΔҾ • ࣗͰΔ MFBSOJOH@SBUF@TDIFEVMFSTUFQ • ࣗͰΰχϣΰχϣͯ͠͠·͏ (SBEJFOU"DDVNVMBUJPO • (SBEJFOU"DDVNVMBUJPO ޯྦྷੵ ɿύϥϝʔλߋ৽ PQUJNJ[FSTUFQ Λόονʹճʹ͢Δ͜ͱͰ #4Λ૿͢͜ͱʹ͍ۙॲཧΛ͢Δ • #4େ͖͘͢Δ͜ͱͱશʹՁͰͳ͍ͷͰҙ • ࣗͰΰχϣΰχϣ͢Δ UREN • FUDʜ
Ԛ͘ͳͬͨཁҼ • ࣗͰॻ͘ USBJO@B@FQPDI • ແݶʹਂ͘ͳΔ GPSϧʔϓʢFQPDI CBUDI FUDʜ •
ແݶʹ૿͑ΔҾ • ࣗͰΔ MFBSOJOH@SBUF@TDIFEVMFSTUFQ • ࣗͰΰχϣΰχϣͯ͠͠·͏ (SBEJFOU"DDVNVMBUJPO • (SBEJFOU"DDVNVMBUJPO ޯྦྷੵ ɿύϥϝʔλߋ৽ PQUJNJ[FSTUFQ Λόονʹճʹ͢Δ͜ͱͰ #4Λ૿͢͜ͱʹ͍ۙॲཧΛ͢Δ • #4େ͖͘͢Δ͜ͱͱશʹՁͰͳ͍ͷͰҙ • ࣗͰΰχϣΰχϣ͢Δ UREN • FUDʜ ͲΕίϯϖͰઓ͏্Ͱ ຊ࣭తͰͳ͍
ΦϨΦϨ 5SBJOFSΫϥεॻ͚Δ͚Ͳʜ • ઈରԚ͘ͳΔ • 8JOOFSTPMVUJPODPEFͰΑ͘ݟ͔͚Δ͚ͲେମԚ͍ • Ճ͑ͯඍົʹͦΕͧΕݸੑग़͖ͯͯ͠ਏ͍ • ͦͷ͏ͪؾ͔ͮͣʹόάຒΊࠐΈͦ͏
• Ͱ͖ΕͪΌΜͱͨ͠ઃܭʹԊ͍͍ͨ • ଞਓ ະདྷͷؚࣗΊ ͕Ҡ২͢Δͱ͖ʹָʹҠ২Ͱ͖ͯ΄͍͠ • ࣗͰϝϯς͢ΔؾʹͳΕͳ͍ • ઈରਏ͍ • ͋ʔͲ͔͜ʹΑΓڧͦ͏ͳͻͱ͕ϝϯςͯ͘͠ΕΔ 5SBJOFS Ͷʔ͔ͳʔʁʁʁ
ͦΜͳ͋ͳͨʹ
1Z5PSDI-JHIUOJOHͱ • ԼهΛαϙʔτͯ͘͠ΕΔ 1Z5PSDIXSBQQFS • 4DBMFZPVSNPEFMT • .VMUJ(16ɾ.VMUJ/PEF5SBJOJOHɾOWJEJBBQFY .JYFE 1SFDJTJPO5SBJOJOH
• ઃఆධՁࢦඪɾֶशࡁXFJHIUͷอଘͳͲ • 8SJUFMFTTCPJMFSQMBUF ఆܕจͷলུ
• ӈਤެࣜϖʔδΑΓ • IUUQTHJUIVCDPNX JMMJBN'BMDPOQZUPSDI MJHIUOJOH • 1-ӈͷփ৭ͷ෦ ΛΧόʔͯ͘͠ΕΔ •
ࢲୡ੨͍෦͚ͩू த͢Εྑ͍ʂʂ • ఔΑཻ͍ʂ
1Z5PSDI-JHIUOJOHͱ େ͖͘ҎԼ ͭͷཁૉ͕͋Δ • -JHIUOJOH.PEVMF • 㲈 .PEFM %BUBTFU -PTT
0QUJNJ[FS • USBJOJOH WBMJEBUJPOͷ֤ TUFQͷಈ࡞ͳͲΛఆٛ • WBMJEBUJPOFOE࣌ʹ݁ՌΛͲ͏ू͢Δ͔ͱ͔ఆٛՄ • 5SBJOFS • %FWJDF (16PS$16 .JYFE1SFDJTJPO • .VMUJ(165ZQF %1PS%%1 • 8FJHIU MPHͷอଘॴ • $BMMCBDL FBSMZTUPQQJOHͱ͔ • (SBEJFOU"DDVNVMBUJPO
4UBSU1Z5PSDI-JHIUOJOH • 4UFQQJQJOTUBMMQZUPSDIMJHIUOJOH • 4UFQ ඞཁͳਓ OWJEJBBQFYΛผ్Πϯετʔϧ • 1Z5PSDI-JHIUOJOHΛ͏͚ͩͳΒඞਢͰͳ͍ •
ͰศརͳͷͰݸਓతʹਪ • 4UFQ-JHIUOJOH.PEVMFͷ࡞ • 4UFQ5SBJOFSͷ࡞ • 4UFQUSBJOFSGJU NZ@MJHIUOJOH@NPEVMF
4UFQ-JHIUOJOH.PEVMFͷ࡞ • -JHIUOJOH.PEVMF Λܧঝ • ҎԼͷؔΛఆٛ • ඞਢ 3FRVJSFE •
USBJOJOH@TUFQ • DPOGJHVSF@PQUJNJ[FST • 999@EBUBMPBEFS • ࣗ༝ 0QUJPOBM • WBMJEBUJPO@TUFQ • WBMJEBUJPO@FOE
4UFQ-JHIUOJOH.PEVMFͷ࡞ ೖྗ͔Β -PTTΛܭࢉͯ͠ฦ͢ ೖྗ͔Β -PTTΛܭࢉͯ͠ฦ͢ -PTT͚ͩ͡Όͳ֤͘ධՁࢦඪՄೳ
4UFQ-JHIUOJOH.PEVMFͷ࡞ -PTTͷ߹ܭͱ͔৭ʑฦ͢ ίϯιʔϧදࣔ༻ QSPHSFTT@CBS MPH༻ MPH ɺ DBMMCBDL༻ WBM@MPTT ͱ͔ࣗͰ໊͚Δ
ͳͲΛฦͤΔ PQUJNJ[FSΛฦ͢ TDIFEVMFS͋ͬͯͳͯ͘Մ
4UFQ5SBJOFSͷ࡞ -PHͷอଘํ๏ ԿΛอଘ͢Δ͔ 8FJHIUͷอଘํ MBUFTUPS CFTUMPTT &BSMZ4UPQQJOH .VMUJ(16ͷΦϓγϣϯબΔʂ ຯʹ͏Ε͍͠
HSBE@BDD Φϓγϣϯ
4UFQ5SBJOFSGJU QM@NPEVMF ˠ࣮ߦ ,FSBT -JLF
1Z5PSDI-JHIUOJOHͷҙ • ·ͩ 4UBCMFͳόʔδϣϯͰͳ͍ • ޙํޓੑͳΜͯ͑ͳ͍ όʔδϣϯΞοϓ ॻ͖͠ඞਢ • 1Z$IBSNͱ͔ͷؔδϟϯϓػೳඞਢʢ1Z5PSDIॳͷਓʹඇਪʣ
• .VMUJ(16º .JYFE1SFDJTJPO5SBJOJOH ͷબࢶ͕ %%1ͷΈ • 1Z5PSDIͰ .VMUJ(16Λ͏ͨΊͷબࢶ %1ͱ %%1 • %1 %BUB1BSBMMFM • Πϝʔδ֤(16Λ߹ମͯ͠େ͖͍(16Λ࡞Δ • %%1 %JTUSJCVUFE%BUB1BSBMMFM • Πϝʔδ֤(16Ͱಠཱͯ͠ॲཧΛਐΊΔײ͡ • %BUBTFUΛ(16ຖʹׂ͢Δ • %1ͱ %%1ͷࠩԼه͕Ұ൪͔Γ͍͢ • IUUQXXXUFMFTFOTDPEJTUSJCVUFEEBUBQBSBMMFMUSBJOJOH VTJOHQZUPSDIPOBXT
1Z5PSDI-JHIUOJOHͷҙ • %%1࣌ʹ 7BMJE%BUB-PBEFSΛׂ͢Δͱ 7BMJE4DPSF͕ਖ਼ ͘͠ܭࢉͰ͖ͳ͍ Ұ෦͔͠ΘΕͳ͍ • ݱঢ়ׂ͢Δͱ (16ͷ
7BMJE4DPSF͔͠อଘ͞Εͳ͍ • ֤ (16Ͱܭࢉͨ͠ 7BMJE4DPSFΛू SFEVDF Ͱ͖ͳ͍ • IUUQTHJUIVCDPNXJMMJBN'BMDPOQZUPSDIMJHIUOJOHJTTVFT • ͪΌΜͱ 7BMJE4DPSFΛܭࢉ͢ΔͨΊʹ 7BMJE%BUB-PBEFSΛ ׂͤͣʹ֤ (16Ͱܭࢉͤ͞Δ ༨ͳܭࢉΛ͠ͳ͍ͱ͍͚ͳ͍ • গ͚͕͔͔ͩ࣌ؒ͠Δ • ͋͘·Ͱ 7BMJEͳͷͰ 5SBJO࣌ؒʹൺΕڐͤΔ͕
1Z5PSDI-JHIUOJOHͷҙ • ॻ͘ίʔυྔ͕ΊͪΌͪ͘ΌݮΔΘ͚Ͱͳ͍ • ͦΕͳΓʹॻ͘ • ͍͚ͨͩ͘͠ͳΒ GBTUBJ ʹߦ͖͘ •
ʮ1Z5PSDI-JHIUOJOHʯ ˠ ʮΦϨΦϨϧʔϓʯͷҠߦָ
ͬͯΈͨײ • ·ͩ·ͩൃల్্͚ͩͲظେ • ݸਓతʹ 1Z5PSDI*HOJUFΑΓ͖ • ΄ͲΑࣗ͘༝ͷͬͨςϯϓϨʔτͰ͋Γɺڧ੍తʹͳ ϧʔϓΛׂ͢ΔΑ͏ʹͳΔͷͰݸਓతʹخ͍͠ •
ඞͣॻ͕ܾؔ͘·͍ͬͯΔͷͰɺଞλεΫ࢝ΊΔͱ͖࢝Ί͍͢ • ࠓ͍࢝ΊΔͱʑؔδϟϯϓΛΘ͟ΔΛ͑ͳ͍͚Ͳɺ ιʔείʔυΛಡΉ͜ͱͰ৭ʑษڧʹͳͬͨ • %JTUSJCVUFE%BUB4BNQMFSͱ͔
݁ • .VMUJ(16पΓͷڍಈΛআ͚͍͍ͩͨຬʂ • 4JOHMF(16ͳΒؾʹͳΔͱ͜Ζͳ͍ • ,BHHMFͰ 1Z5PSDI$BUBMZTUྲྀߦͦ͠͏ͳͷͰཁνΣοΫ • $BUBMZTU
4FHNFOUBUJPOUVUPSJBM͕ΫΦϦςΟߴ͔ͬͨͰ͢ • ྆ํͬͯࣗʹ߹ͬͨ΄͏Λ͏ͷ͕ྑ͍ͱࢥ͍·͢ • ࢼ͢ʹ͕͔͔࣌ؒΔ͚Ͳʜ • ͍ͣΕૉͷ 1Z5PSDIΑΓடংΛײ͡ΒΕΔ • ؾʹͳΔਓԼهͰݕࡧͯ͠Έ·͠ΐ͏ • lQZUPSDI JHOJUFz lQZUPSDI DBUBMZTUz lQZUPSDI MJHIUOJOHz • ্ه͍ͣΕެࣜ IUUQTQZUPSDIPSHFDPTZTUFN Ͱհ͞ΕͯΔ
͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠
͓·͚ɿੳίϯϖ-5ձͷ࢝·Γ
͓·͚ɿੳίϯϖ-5ձͷ࢝·Γ
͓·͚ɿੳίϯϖ-5ձͷ࢝·Γ
͓·͚ɿίϯϖʹ͑͏Δ 1Z5PSDI-JHIUOJOH • ͔͜͜Β ,BHHMFͷ l6OEFSTUBOEJOH$MPVETGSPN 4BUFMMJUF*NBHFT Ӣίϯϖ z༻ʹͨ͠෦Λհ͠·͢ •
IUUQTHJUIVCDPNZVLLZP,BHHMF6OEFSTUBOEJOH$MPVETUITPMVUJPO • ΦϨΦϨ 1Z5PSDI-JHIUOJOHʹͳͬͯ͠·ͬͯΔͷͰҙ • ࣗ͝Ͱ֦ு͢ΔώϯτʹͳΕͱࢥ͍·͢ • FY͜͜ΒΜΛม͍͑ͨͱ͖͜͜Λมߋͪ͠Ό͑ྑ͍Μͩͳ
͓·͚ɿίϯϖʹ͑͏Δ 1Z5PSDI-JHIUOJOH • ओͳมߋ • %JTUSJCVUFE4BNQMFS 1Z5PSDI-JHIUOJOHؔͳ͍ • ࢦఆͨ͠ QPTJUJWFOFHBUJWFൺΛ༻͢Δ
• 5SBJOFS ӢίϯϖͰద༻͠·ͤΜͰ͕ͨ͠ʜ • ຖ FQPDIຖʹ QPTJUJWFOFHBUJWFΛมߋͰ͖ΔΑ͏ʹͨ͠ • -PHHFS -JHIUOJOH-PHHFS#BTF • ෆཁͳͷΛอଘ͠ͳ͍Α͏ʹͯ͠࠷ݶͷͷ͚ͩอଘ͢ΔΑ͏ʹͨ͠ • ೖྗύϥϝʔλҰཡͱ͔ࣗͰ :".-Ͱอ࣋ͯ͠ΔͷͰʜ • $IFDLQPJOU .PEFM$IFDLQPJOU • ҎԼͷೋछྨͷॏΈΛ྆ํอଘͰ͖ΔΑ͏ʹͨ͠ σϑΥϧτยํͷΈ • ࠷৽ FQPDIͷ XFJHIU MBUFTUQU #FTU-PTTͷ XFJHIU CFTU@MPTTQU • ͜Ε JTTVFͳΜͩΑͳ • l DLQUzʹ͢Δͱ 1Z5PSDI-JHIUOJOHͷ໋໊نଇʹै͏ඞཁ͋Γ ໘
5SBJOFS ӢίϯϖͰະద༻ • ຖ FQPDIຖʹ QPTJUJWFOFHBUJWFΛมߋͰ͖ΔΑ͏ʹͨ͠ • SVO@UOH@FQPDI Λ PWFSSJEFͯ͠
TBNQMFSΛຖ FQPDI͍͡Δ
-PHHFS -JHIUOJOH-PHHFS#BTF Λܧঝͯ͠ • ࣗͷอଘ͍ͨ͠ͷ͚ͩอ ଘ͢ΔΑ͏ʹͨ͠ • !SBOL@[FSP@POMZ NVMUJ
HQV ࣌ʹ (16ͷΈ࣮ߦ ͢ΔͨΊͷσίϨʔλ
$IFDLQPJOU .PEFM$IFDLQPJOU • -BUFTUͱ #FTU.FUSJDTͷೋछྨͷ XFJHIUΛอଘͰ͖ΔΑ͏ʹ
͓ΘΓ