w λʔϯͷऴྃ࣌ʢ&OEQPJOUʣΛݕग़͢Δ w ϊΠζͷӨڹൃ్தͷҰ࣌ఀࢭͰݕग़͕ࠔ w ൃߦҝʢ4QFFDI"DUʣҙਤΛΓऔͬͯจࣗମ͕ݴٴ͢Δ͜ͱ w ओཁͳ̐Ϋϥεʹྨʢ͠खج४ʣ $POTUBUJWFTɿԿ͔͕֬ఆ͍ͯ͠Δͱݴٴ͢Δ %JSFDUJWFTɿฉ͖खʹԿ͔ͤ͞Α͏ͱ͢Δʢ໋ྩɼېࢭͳͲʣ $PNNJTTJWFTɿকདྷͷߦҝΛଋʢܖɼܭըͳͲʣ "DLOPXMFEHFNFOUTɿࣾձతߦҝʹ͍ͭͯͷଶʢײँɼँࡑͳͲʣ w άϥϯσΟϯάʢ(SPVOEJOH ج൫Խʣ૬ޓཧղΛཱͤ͞Δ͜ͱ
ࠞ߹ओಋʢҰൠతͳձʣɼϢʔβओಋɼγεςϜओಋ w ਪͱؚҙ w نతؚҙΛਪ͢Δ w FYʣ"ɿࢢॴʹߦ͖͍ͨΜͰ͚͢ͲɺͲ͜ʹ͋Δ͔͝ଘͰ͔͢ʁ ɹɹ#؍ޫ٬ͳͷͰɻ͢Έ·ͤΜɻ w ؔ࿈ੑͳͲ 1SPQFSUJFTPG)VNBO$POWFSTBUJPO ˞ɿIUUQXXXUVGTBDKQUTQFSTPOBMOPNPUPIBOEPVU*NQMJDBUVSFQEG ˞
w //Λ༻͍ͨख๏ q C r q, C r $PSQVTCBTFEDIBUCPUT responcse(q, C) = argmax r∈C q ⋅ r |q||r| hq = BERTQ (q)[CLS] hr = BERTR (r)[CLS] response(q, C) = argmax r∈C (hq ⋅ hr )
ରߦҝྨɿ࣭ɼߠఆPS൱ఆͷԠͷ۠ผ w ࣮ w (15ΛผʑͰfiOFUVOJOH w ڞײతͳରͷσʔληοτʢ&NQBUIFUJD%JBMPHVFTʣ w 8JLJQFEJBʹΑΔݴ͍͑ w ϢʔβͷԠͷྨثɼөըͱԻָʹؔ͢ΔϧʔϧϕʔεʹΑΔੜث w ੜثΛ༏ઌॱҐͰࢦఆ͢Δ ˞ɿIUUQTBSYJWPSHBCT ˞
ϑϨʔϜͷ֤εϩοτͷ࣭ྫ 4MPU 5ZQF 2VFTUJPO5FNQMBUF 03*(*/ $*5: l'SPNXIBUDJUZBSFZPVMFBWJOH z %&45*/"5*0/ $*5: l8IFSFBSFZPVHPJOH z %&1"3563& 5*.& l8IFOXPVMEZPVMJLFUPMFBWF z %&1"3563& %"5& l8IBUEBZXPVMEZPVMJLFUPMFBWF z "33*7"- 5*.& l8IFOEPZPVXBOUUPBSSJWF z "33*7"- %"5& l8IBUEBZXPVMEZPVMJLFUPBSSJWF z
w ຒΊΔ͖εϩοτʹΑͬͯϑϨʔϜΛΓସ͑Δ w Ϣʔβͷҙਤ͕࣮ߦՄೳʹͳΕɼͦΕʹै͏ΞΫγϣϯΛ࣮ߦ͢Δ ˞̐ɿIUUQTXXXBOMQKQQSPDFFEJOHTBOOVBM@NFFUJOHQEG@EJS1QEG %FUFSNJOJOH%PNBJO *OUFOU BOE4MPUGJMMFSTJO(64 w (64ʹ͓͚ΔϢʔβൃݴ͔Βநग़ w υϝΠϯྨɿϚϧνυϝΠϯ͕ݱͷඪ४ w ҙਤܾఆɿϢʔβ͕ୡ͠Α͏ͱ͢ΔλεΫΛܾఆ w खॻ͖ϧʔϧͷεϩοτຒΊɿ݅ʔΞΫγϣϯʢจ຺ࣗ༝จ๏ʣ w େنͷҙຯจ๏ʹΑΔखॻ͖ઃܭʢ1IPFOJYTZTUFNʣ
w //ɿಡղΞʔΩςΫνϟΛ༻͍ͨϞσϧͱεύϯ༧ଌϞσϧͷΈ߹Θͤ w ಛघέʔεɿमਖ਼ߦҝݕग़ w ԻͷޡೝࣝʹΑͬͯߦ͏Ϣʔβͷमਖ਼ߦҝΛೝࣝ͢Δඞཁ͕͋Δ w मਖ਼ߦҝͷಛ ޠኮ l͍͍͑z zగਖ਼z z͠ͳ͍zͳͲɽฉ͖औΓͮΒ͍ݴ༿ ҙຯ ઌߦൃͱగਖ਼ީิͷྨࣅ Իӆ ઌߦൃͱగਖ਼ީิͷԻॏෳ ӆ Իઅɼ'ൣғɼϙʔζ࣌ؒɼ୯ޠ࣌ؒͷ૿ՃͳͲ "43 "43ͷ৴པɼݴޠϞσϧͷ֬
ݕࡧɾ֬ೝɾ࣭ͷબΛεϩοτදݱͷޭͳͲͷใु͔Β֫ಘ w ֬ೝ w ໌ࣔత֬ೝɿର͕ෆࣗવͰ͕͘͞ͳΔɼޡೝࣝͷमਖ਼͕༻ҙ w ҉ࣔత֬ೝɿάϥϯσΟϯάΛ༻͍ͨରߦҝͷੜ w ڋ൱ w QSPHSFTTJWFQSPNQUJOHɿڋ൱ʹରͯ͠ҊΨΠμϯεΛ༩͑Δ w ରঢ়ଶදݱҎ֎ɿ"43ͷ৴པ ̂ Ai = argmax Ai ∈A P(Ai |Framei−1 , Ai−1 , Ui−1 )
ઃܭͱςετͷ܁Γฦ͠ w Ϣʔβͷ҆શੑ w ةݥͰޡͬͨΞυόΠεϢʔβͷ߈ܸతൃݴɼਓछࠩผͳͲͷภݟΛ࣋ͭ ʢ.JDSPTPGU5BZʣ ˠݴޠੜϞσϧʹόΠΞε͕͔͔Δ w ϓϥΠόγʔɿϢʔβͷϓϥΠϕʔτใͷಗ໊Խ w ରࡦ w ༗ͳจΛݕͯ͠దʹରॲ͢Δ &UIJDBM*TTVFTJO%JBMPHVF4ZTUFN%FTJHO
εϩοτΛߏ͢ΔϑϨʔϜΛ༻͍ͯɼγεςϜ͕Ϣʔβʹ࣭ͯ͠εϩοτΛຒΊ͍ͯ͘ɽ w ରঢ়ଶΞʔΩςΫνϟɼϑϨʔϜಛఆͷͨΊͷରߦҝɼ ରߦҝੜͷͨΊͷରࡦɼࣗવݴޠੜΛ(64ʹՃͨ͠ͷͰ͋Δɽ w ରγεςϜɼਓؒͱίϯϐϡʔλͷ૬ޓ࡞༻ͷҰछͰ͋Γɼ ઃܭʹɼϢʔβͷׂɼγϛϡϨʔγϣϯɼઃܭςετͷ܁Γฦ͠ͷॏཁੑͳͲɼ ώϡʔϚϯίϯϐϡʔλΠϯλϥΫγϣϯͷݪଇ͕ద༻͞ΕΔɽ