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参加レポ
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kzmssk
March 26, 2020
Research
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[email protected]
参加レポ
アメリカ人工知能学会の国際会議AAAI2020のレポートです。聴講した中で面白いと思った研究を紹介しています。
kzmssk
March 26, 2020
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Transcript
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ࢀՃϨϙ %XBOHP.FEJB7JMMBHF ࠤʑɹҰຏ
4QFDJBMFWFOUGFBUVSJOHUIF5VSJOH"XBSE8JOOFST :PTIVB#FOHJPਓؒͷແҙࣝతͳػೳʢʹݱࡏͷ"*ʣ͔ΒҙࣝతͳػೳΛ࣋ͬͨγεςϜʹ͚ͯ (FP⒎SFZ&)JOUPOɿ$BQTVMF/FUͷ :BOO-F$VO4FMGTVQFSWJTFEMFBSOJOHJTGVUVSFʢະདྷ༧ଌͷʣ "*)JTUPSZ1BOFM"EWBODJOH"*CZ1MBZJOH(BNFT ήʔϜ͕"*ٕज़ͷൃలʹͲ͏د༩͖ͯͨ͠ͷ͔ Πϕϯτ
%FFQ.JOEͷݚڀऀͨͪʹΑΔXPSLTIPQɻگɻ "UBSJ)&"%"UBSJ)VNBO&ZF5SBDLJOHBOE%FNPOTUSBUJPO%BUBTFU "UBSJͷήʔϜΛਓ͕ؒϓϨΠ͢ΔࡍͷࢹઢσʔλΛऩूͨ͠ݚڀ ࢹઢσʔλ3-ΤʔδΣϯτͷֶशੑೳ্ʹཱͭ͜ͱ͕Θ͔ͬͨ *OWJUFE5BMLCZ(FSSZ5FTBVSP 5%(BNNPO ڧԽֶशͰόοΫΪϟϞϯΛͬͨਓʣ ྺ࢙ͷ FHڧԽֶशΛ࠷ॳʹͬͨͷ୭͔ʁ$MBVEF4IBOOPJO
*OWJUFE5BMLCZ.JDIBFM#PXMJOH ଟਓڠྗήʔϜʮ)BOBCJʯͷઆ໌ 5IFPSZPG.JOE͕ඞཁͳήʔϜσβΠϯͩͱ͍͏ओு *OWJUFE5BMLCZ%BWJE4JMWFS NV;FSPͷ 2"ʮ࿈ଓߦಈͷ֦ுՄೳʁʯˠʮ.$54Λ࿈ଓߦಈʹ֦ுͰ͖Εग़དྷͦ͏ʯ 8PSLTIPQ3FJOGPSDFNFOU-FBSOJOHJO(BNFT [1]
໘ന͍ͱࢥͬͨݚڀͨͪ
ɿ%FFQ2-FBSOJOHͷֶश͕ෆ҆ఆ Ξϓϩʔνͱ࣮ ෳͷ5FBDIFSํࡦΛ༻ҙͦ͠ΕͧΕ͕5%ֶश 3FQMBZ#V⒎FSڞ༗ 4UVEFOUํࡦʹ5FBDIFS͔Βৠཹ ࣮ݧ "5"3*ͷͭͷήʔϜ 5FBDIFSͭΑΓෳͷํ͕ྑ͍݁Ռ ײ 0⒎QPMJDZͷಛΛ׆͔ͨ͠ݚڀ
5FBDIFSํࡦΛͦΕͧΕҧ͏ͷʹม͑ͨΒͲ͏ͳΔ͔ؾʹͳͬͨ &OTFNCMF1PMJDZ%JTUJMMBUJPOJO%FFQ3FJOGPSDFNFOU-FBSOJOH จ Fig.1 ΑΓ [2]
ɿ&YQFSJFODF3FQMBZʹ͓͚Δഁ໓త٫ Ξϓϩʔνͱ࣮ ͨ͘͞Μ๚ΕΔঢ়ଶΛΑΓ༏ઌతʹαϯϓϦϯά͢Δ ๚සʢಛʹ࿈ଓঢ়ଶͷ߹ʹʣܭࢉࠔ 3FQMBZCV⒎FS͔Βͨ͘͞ΜऔΔˠPOQPMJDZͷঢ়ଶͱͷڑ͕͍ۙUPQ,ݸΛͬͯํࡦߋ৽ ڑίαΠϯྨࣅೋޡࠩ ࣮ݧ .V+P$P "UBSJ ੑೳগ͠ྑ͘ͳΔ͕ɺ࠷దԽʹ͔͔Δ͕࣌ؒ༨ܭʹ͔͔ΔʢαϯϓϧΛͨ͘͞Μࣺ͍ͯͯΔͷͰʣ
ײ อकతͳํ๏ 1SJPSJUZΛ5%ޡࠩҎ֎ͷํ๏Ͱܭࢉ͢Δͷྑ͍ΞΠσΞ "UUFOUJWF&YQFSJFODF3FQMBZ [3]
ɿ4BNQMFDPNQMFYJUZ ҰఆͷੑೳΛୡ͢ΔͨΊʹඞཁͳαϯϓϧʣͷߴ͞ ਓؒͷσʔλͳͲͷσϞϯετϨʔγϣϯΛ͏ͱऩଋૣ͍͕σϞΛ͑ΒΕͳ͍ Ξϓϩʔνͱ࣮ɿ ༧ଌͨ͠Ձʹ৴པੑ͕ͳ͍ͱ͖σϞϯετϨʔγϣϯͷ༧ଌΛ͏ʢΞυόΠεʣ ৴པੑՁͷࢄͰଌΔ ࣮ݧ (SJEXPSME 1POH "5"3*
1POHͷ߹ࣄલֶशͨ͠ڧ͍BHFOUΛEFNPOTUSBUPSʹ͢Δ ͲͪΒΞυόΠεͳ͠ɺϥϯμϜͳΞυόΠεͷ߹ΑΓੑೳ্͕ ײ 2"ͰʮֶशରͷํࡦΞυόΠεΛˋड͚ೖΕΔͨΊσϞҎ্ͷੑೳ͕ग़ͳ͍ͷͰͳ͍͔ʯ ͱ͍͏͕ٞ͋ͬͨͷ͕ڵຯਂ͔ͬͨ ऩଋ͖ͯͨ͠ΒٯʹΞυόΠεΛཪΔํ๏Λࢼ͢Α͏ͳώϡʔϦεςΟοΫಋೖͰ͖ͦ͏ 6ODFSUBJOUZ"XBSF"DUJPO"EWJTJOHGPS%FFQ3FJOGPSDFNFOU-FBSOJOH"HFOUT6ODFSUBJOUZ "XBSF"DUJPO"EWJTJOHGPS%FFQ3FJOGPSDFNFOU-FBSOJOH"HFOUT [4]
ɿ4FRVFOUJBMͳܭࢉάϥϑΛޮతʹ࣮ߦͰ͖ΔΑ͏ʹෳͷ$16ʹׂΓ͍ͯͨ ྫɿ5FOTPSqPXͷܭࢉάϥϑͷ࣮ߦσόΠεׂΓͯ εϧʔϓοτ͕࠷େԽ͢ΔΑ͏ͳׂΓͯΛ୳ࡧ͢Δͷ/1ࠔ Ξϓϩʔνͱ࣮ɿ ڧԽֶशͱͯ͠ଊ͑ΔɿσόΠεʢ$16 ͷׂΓͯΛߦಈɺঢ়ଶΛάϥϑɺใुΛεϧʔϓοτ (SBQIDPOWͨ͠ಛྔΛ-45.ͰΈࠐΜͩϞσϧΛ3&*/'03$&Ͱ࠷దԽ γϛϡϨʔλʔΛͬͯεϧʔϓοτΛܭࢉ ࣮ݧɿγϛϡϨʔλʔͰධՁɻܶతʹվળ͠ͳ͔͕ͬͨˋͷྫͰ)FVSJTUJDΑΓྑ͍݁Ռ ײɿ࣮ݧͰ༻ͨ͠άϥϑ͕؆୯͗͢Δؾ͕͢Δ͕ɺγϛϡϨʔλͷਫ਼͕Α͚Εྑͦ͞͏
(FOFSBMJ[BCMF3FTPVSDF"MMPDBUJPOJO4USFBN1SPDFTTJOHWJB%FFQ3FJOGPSDFNFOU-FBSOJOH [5]
ɿϚϧνΤʔδΣϯτͷܥʹ͓͚ΔΤʔδΣϯτؒͷΠϯλϥΫγϣϯΛϞσϦϯά͍ͨ͠ ΠϯλϥΫγϣϯ0 /?E Ͱେม Ξϓϩʔνͱ࣮ ΤʔδΣϯτͷঢ়ଶભҠͱଞΤʔδΣϯτͷग़ྗʢߦಈʣΛͦΕͧΕχϡʔϥϧωοτͰϞσϦϯά ঢ়ଶΨεʹै͏ͱԾఆ͢Δ ΠϯλϥΫγϣϯग़ྗʹʮͲͷΤʔδΣϯτʹରͯ͠ΑΓಇ͖͔͚Δ͔ʯͷ֬Λ͔͚ͨઢܗͱͯ͠දݱ "UUFOUJPOʹͳ͍ͬͯΔɻ0 /
ͷܭࢉྔɻ ࣮ݧ όωͰܨ͕࣭ͬͨɺόεέοτબखͷಈ͖ͳͲͷσʔλΛϞσϦϯάͨ͠ࡍͷ༧ଌޡࠩΛධՁ γϯϓϧͳ-45.ͳͲʹൺͯྑ͍݁Ռ ײ ֬తͳঢ়ଶભҠΛಋೖ͢Δ͜ͱʹΑͬͯγεςϜͷྗֶతͳੑ࣭͕Ͳ͏มΘΔͷ͔͕ؾʹͳͬͨ (FOFSBUJWF"UUFOUJPO/FUXPSLTGPS.VMUJ"HFOU#FIBWJPSBM.PEFMJOH [6]
ϊʔυ͕ؒ౸ୡՄೳ͔Ͳ͏͔͕࣌ؒมԽ͢Δಈతͳແࢦੑάϥϑ Ұఆ࣌ؒʹ9͔Β౸ୡՄೳͰ͋Δͷू߹ʢSFBDIBCJMJUZTFUTʣΛߟ͑Δ άϥϑߏͷΑΓʮࣗવʯͰʮJOGSBTUSVDUVSFGSJFOEMZʯͳૢ࡞ʹΑͬͯSFBDIBCJMJUZTFUT Λ࠷దԽ͍ͨ͠ Ξϓϩʔνͱ࣮ ఏҊૢ࡞ɿ.FSHJOHʢपลͷΤοδͷ౸ୡՄೳ࣌ؒΛϚʔδ͢Δʣ ఏҊૢ࡞ɿ%FMBZJOHʢಛఆͷΤοδͷ౸ୡՄೳ࣌ؒʹΕΛೖΕΔʣ ࣮ݧ .FSHJOH
%FMBZJOHڞʹ/1ࠔͰ͋Δ͜ͱΛূ໌ͨ͠ ͨͩ͠%FMBZJOHͷΕʹ੍ݶ͕ͳ͚ΕۙࣅΞϧΰϦζϜ͕ଘࡏ ײ ఏىతͳจɻಈతͳάϥϑྺ࢙͕ઙ͍ɻ ੩తͳάϥϑʹൺ͍͕ͯ͠ɺϒϥβ্ͷϖʔδભҠϢʔβʔྲྀಈͷղੳͳͲԠ༻ઌ ͨ͘͞Μ͋Γͦ͏ 0QUJNJ[JOH3FBDIBCJMJUZ4FUTJO5FNQPSBM(SBQITCZ%FMBZJOH จ Fig.6 ΑΓ [7]
γʔέϯγϟϧͳϨίϝϯυͰ"UUFOUJPO͖ͷϞσϧ͕ߴ͍ੑೳΛग़͍ͯ͠Δ ͔͠͠طଘख๏Ͱ"UUFOUJPOͷߏ͕λεΫґଘʹͳ͍ͬͯΔ Ξϓϩʔνͱ࣮ "UUFOUJPOϕΫτϧΛϢʔβʔɺΞΠςϜɺΞΠςϜͷڞىߦྻʢΞΠςϜ"Λબͨ͠Ϣʔβʔ#બ͢ΔʣΛͬ ͯٻΊΔ "UUFOUJPOਖ਼نʢ4LFXOPSNBMEJTUSJCVUJPOʣʹै͏ͱԾఆɻ3FQBSBNFUFSJ[BUJPOUSJDL͏ ΞΠςϜͷڞىߦྻΞΠςϜͷϖΞසɺΞΠςϜͷFNCFEEJOHɺϢʔβͷFNCFEEJOHͷͭͷઢܗͰύϥϝλϥ Πζ ࣮ݧ
ଞͷطଘख๏ʹൺͯ༏Ґͳ݁Ռ ֶशʹΑͬͯಘΒΕͨڞىߦྻදݱͰಉ͡өըγϦʔζ͕ߴ͍ʹͳΔ͜ͱ͕؍͞Εͨ ײ "UUFOUJPOʹΛԾఆ͢Δํ๏ଞͷλεΫʹԠ༻Ͱ͖ͦ͏ 4FRVFOUJBM3FDPNNFOEBUJPOXJUI3FMBUJPO"XBSF,FSOFMJ[FE4FMG"UUFOUJPO [8]
େͳΞΠςϜͷϨίϝϯυͷͨΊʹಛྔϕΫτϧΛྨࣅੑΛอͬͨ· ·࣍ݩݮ͍ͨ͠ -PDBMJUZTFOTJUJWFIBTIJOH -4) 3FDPNNFOEBUJPO3FUSJFWBM ͔͠͠ϋογϡؔΦϑϥΠϯͰ֫ಘ͞ΕΔͷͰΞΠςϜϢʔβʔ͕ม ΘΔͱਫ਼͕Լ͕Δ Ξϓϩʔνͱ࣮ ϋογϡʹϕϧψʔΠΛԾఆ
ϢʔβʔͱΞΠςϜͷಛྔϕΫτϧΛޯ๏Ͱ࠷దԽͯ͠ಘΔ ײ U4/&ʹࣅ͍ͯΔ .FUSJDMFBSOJOHͱͷ͕ؔؾʹͳΔ 4UPDIBTUJDBMMZ3PCVTU1FSTPOBMJ[FE3BOLJOHGPS-4)3FDPNNFOEBUJPO3FUSJFWBM จ Fig.3 ΑΓ [9]
<>;IBOH 3VPIBO $BMFO8BMTIF ;IVPEF-JV -JO(VBO ,BSM4.VMMFS +BLF"8ISJUOFS -VYJO;IBOH .BSZ.)BZIPF BOE
%BOB)#BMMBSEl"UBSJ)&"%"UBSJ)VNBO&ZF5SBDLJOHBOE%FNPOTUSBUJPO%BUBTFUz*O"""*/FX:PSL64" <>4VO :VYJBOHl&OTFNCMF1PMJDZ%JTUJMMBUJPOJO%FFQ3FJOGPSDFNFOU-FBSOJOH6ODFSUBJOUZ3FEVDUJPOWJB3FWFSTF,-z*O """* /FX:PSL64" <>4VO 1FJRVBO 8FOHBOH;IPV BOE)PVRJBOH-Jl"UUFOUJWF&YQFSJFODF3FQMBZz*O"""*/FX:PSL64" <>4JMWB 'FMJQF-FOP%B 1BCMP)FSOBOEF[-FBM #JMBM,BSUBM BOE.BUUIFX&5BZMPSl6ODFSUBJOUZ"XBSF"DUJPO"EWJTJOHGPS%FFQ 3FJOGPSDFNFOU-FBSOJOH"HFOUTz*O"""*/FX:PSL64" <>/J 9JBOH +JOH-J .P:V 8BOH;IPV BOE,VO-VOH8Vl(FOFSBMJ[BCMF3FTPVSDF"MMPDBUJPOJO4USFBN1SPDFTTJOHWJB%FFQ 3FJOGPSDFNFOU-FBSOJOHz*O"""*/FX:PSL64" <>-J (VBOHZV #P+JBOH )BP;IV ;IFOHQJOH$IF BOE:BO-JVl(FOFSBUJWF"UUFOUJPO/FUXPSLTGPS.VMUJ"HFOU#FIBWJPSBM .PEFMJOHz*O"""*/FX:PSL64" <>%FMJHLBT "SHZSJPT BOE*HPS1PUBQPWl0QUJNJ[JOH3FBDIBCJMJUZ4FUTJO5FNQPSBM(SBQITCZ%FMBZJOHz*O"""*/FX:PSL 64" <>%FMJHLBT "SHZSJPT BOE*HPS1PUBQPWl0QUJNJ[JOH3FBDIBCJMJUZ4FUTJO5FNQPSBM(SBQITCZ%FMBZJOHz*O"""*/FX:PSL 64" <>-F %VOH% BOE)BEZ8-BVXl4UPDIBTUJDBMMZ3PCVTU1FSTPOBMJ[FE3BOLJOHGPS-4)3FDPNNFOEBUJPO3FUSJFWBMz*O"""* /FX:PSL64" จݙใ