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word2vecΛར༻ͨ͠ຒΊࠐΈ෼ੳͱ SWEMΛ༻͍ͨൺֱ࣮ݧ Takanobu Nozawa 2021.02.18 atmaCup#9 ΦϯαΠτσʔλίϯϖৼΓฦΓճ

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ࣗݾ঺հ XPSEWFDͱ͸ XPSEWFDΛJUFNʹԠ༻ 48&.Λ༻͍ͯൺֱ࣮ݧ ·ͱΊ ΞδΣϯμ

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ࣗݾ঺հ

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໊લɿ໺ᖒ఩রʢ/P[BXB5BLBOPCVʣ ॴଐɿίωώτגࣜձࣾ ɹɹɿ!UBLBQZ w ػցֶशʢ/-1ɺਪનγεςϜʣΛϝΠϯʹ΍Γͭͭ"84ͱٔΕ͍ͯ·͢ w σʔλ෼ੳίϯϖͨ͠ΓɺϒϩάʢIUUQTXXXUBLBQZXPSLʣॻ͍ͨΓɺɹɹɹɹɹ ໺ٿͨ͠Γɺϥʔϝϯ৯΂ͨΓ͍ͯ͠·͢ w ࠷ۙϙουΩϟετ🎙 ͸͡Ί·ͨ͠ˠ!HFG@GNʢIUUQTUXJUUFSDPNHFG@GNʣ ࣗݾ঺հ

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ࠓճͷBUNB$VQ͸ҐͰͨ͠ʢਫ਼ਐ͠·͢ʣ ࣗݾ঺հ

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XPSEWFDͱ͸

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˞IUUQTBSYJWPSHBCT XPSEWFDͱ͸ w ೥ʹ(PPHMFͷݚڀऀ͕ൃදͨ͠ख๏ʢ˞ʣ w ಛఆͷ୯ޠͷۙ͘ʹ͋Δ୯ޠ܈Λ༧ଌͰ͖ΔΑ͏ʹ χϡʔϥϧωοτΛֶशͤͯ͞ɺ୯ޠͷ෼ࢄදݱΛऔಘͰ͖Δ w ʮ,JOH.BO8PNBO2VFFOʯ ࿦จ͔ΒҾ༻ʢ˞ʣ

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XPSEWFDͱ͸ $#08ͱTLJQHSBNͷͭͷϞσϧ͕͋Δ ɹྫɿZPVTBZHPPECZFBOE*TBZIFMMP ࢀߟɿIUUQTXXXUBLBQZXPSLFOUSZ

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XPSEWFDͱ͸ ࠓճ༻͍ͨͷ͸TLJQHSBN ʢଟ͘ͷ৔߹ɺ୯ޠͷ෼ࢄදݱͱ͍͏఺ʹ͓͍ ͯ͸ɺTLJQHSBNͷํ͕ྑ͍݁Ռ͕ಘΒΕΔ͜ ͱ͕ଟ͍ʣ ࢀߟɿIUUQTXXXUBLBQZXPSLFOUSZ

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XPSEWFDͱ͸ HFOTJNΛ༻͍Δͱൺֱత༰қʹ࣮૷Մೳ ʢBUNB$VQͷ%JTDVTTJPOʹ࣮૷ίʔυ͋͛ͯ·͢☺ ʣ

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XPSEWFDΛJUFNʹԠ༻

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XPSEWFDΛJUFNʹԠ༻ w εʔύʔ͸جຊతʹಋઢ͕ઃܭ͞Ε͍ͯΔ࣌ܥྻ ੨Ռˠڕˠ೑ˠೕ੡඼ˠ͓՛ࢠˠ૜ࡊˠύϯˠҿྉʜ w ʢܦݧతʹʣεʔύʔߦͬͨΒجຊతʹಉ͡Α͏ͳ΋ͷΛങ͏܏޲ʹ ͋Δ w ճͷങ͍෺ϩάΛͭͷTFOUFODFͱΈͳͤ͹ɺͦΕͳΓͷ෼ࢄදݱ ͕ܭࢉͰ͖ΔͷͰ͸ʁͦΕͰϢʔβʔͷຒΊࠐΈΛܭࢉ͢Ε͹্ख͘ ͍͘ͷͰ͸ʁͱ͍͏͜ͱͰ࣮ݧͨ͠

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σʔλͷ࡞Γํ

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σʔλͷ࡞Γํ w TQFOE@UJNFͷσʔλΛҙਤతʹʮϨδΧʔτىಈʯ ʹͯ͠ܭࢉʹؚΊͨ

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σʔλͷ࡞Γํ w TFTTJPOΛTFOUFODFͱΈͳͯ͠DPSQVTΛੜ੒ DPSQVT

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JUFNWFDͷֶश݁Ռ

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JUFNWFDͷֶश݁Ռ w ͍͔ͭ͘ͷJUFNͰ͍ۙJUFNΛදࣔͯ͠෼ࢄදݱΛఆੑత ʹ֬ೝ

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JUFNWFDͷֶश݁Ռ w 6."1Ͱ̎࣍ݩѹॖͯ֬͠ೝ ʢBEKVTU5FYUͱ͍͏ϥΠϒϥϦΛ࢖͏ͱɺϥϕϧ͕ॏͳΒͳ͍Α͏ʹϓϩοτͰ͖·͢☺ ʣ

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JUFNWFDͷֶश݁Ռ w 6."1Ͱ̎࣍ݩѹॖͯ֬͠ೝ ʢBEKVTU5FYUͱ͍͏ϥΠϒϥϦΛ࢖͏ͱɺϥϕϧ͕ॏͳΒͳ͍Α͏ʹϓϩοτͰ͖·͢☺ ʣ ྑͦ͞͏☺

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JUFNͷ෼ࢄදݱΛಛ௃ྔԽ͢Δ

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JUFNͷ෼ࢄදݱΛಛ௃ྔԽ͢Δ w ֤JUFNͷ෼ࢄදݱ͸ఆੑతʹ֬ೝͯͦ͠ΕͳΓͷ஋͕ܭࢉ͞Ε͍ͯΔ ͜ͱ͕֬ೝͰ͖ͨ w ͜ΕΛֶशʹ࢖͑Δܗʹམͱ͠ࠐΈ͍ͨ ˠࠓճ͸48&.ͱ͍͏ख๏ͰϢʔβʔͷຒΊࠐΈϕΫτϧΛܭࢉ͢Δ

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48&.ͱ͸ʁ w 4JNQMF8PSE&NCFEEJOHCBTFE.FUIPET w ୯ޠຒΊࠐΈͷΈΛར༻ͯ͠จষຒΊࠐΈΛܭࢉ͢Δํ๏ʢ˞ʣ w ࿦จͰ͸Լهͭͷख๏͕ఏҊ͞Ε͍ͯΔ 㾎 48&.BWFSɿ୯ޠͷ෼ࢄදݱʹରͯ͠BWFSBHFQPPMJOH͢Δʢίϯϖظؒத͸࣌ؒ΋ͳ͔ ͬͨͷͰ͜Ε͚ͩΛ࣮ݧʣ 㾎 48&.NBYɿ୯ޠͷ෼ࢄදݱʹରͯ͠NBYQPPMJOH͢Δ 㾎 48&.DPODBUɿ48&.BWFSͱ48&.NBYͷ݁ՌΛ݁߹͢Δ 㾎 48&.IJFSɿOHSBNͷΑ͏ʹݻఆ௕ͷ΢Οϯυ΢ͰBWFSBHFQPPMJOHͨ݁͠Ռʹରͯ͠ NBYQPPMJOH͢Δ ˞ɿIUUQTBSYJWPSHBCTW

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48&.Ͱݕূ

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48&.Ͱݕূ w ࢖༻ͨ͠ಛ௃ྔ " Ϣʔβʔͷଐੑ৘ใʢ೥ྸɾੑผʣ # ങ͍෺ͷ࣌ؒ৘ใʢ೥݄೔ɾ࣌ɾ༵೔ͳͲʣ $ JUFNͷ෼ࢄදݱ͔Βܭࢉͨ͠ϢʔβʔຒΊࠐΈϕΫτϧʢ48&.ʣ ˞UFTUʹ͚ͩଘࡏ͢ΔϢʔβʔ͸೥ྸͷฏۉϕΫτϧͰิ׬ w ͔ͤͬ͘ͳͷͰɺԼهछྨͷಛ௃ྔͰൺֱ࣮ݧΛ࣮ࢪ ‣ "#͚ͩͷಛ௃ྔʢϕʔεϥΠϯʣ ‣ "#$ͷಛ௃ྔʢ$͸લड़ͨ͠छྨ෼ʣ ‣ Ϟσϧ͸-JHIU(#.GPME 48&.ͷ࣮૷ίʔυαϯϓϧ͸(JUIVCϦϙδτϦʹ͋͛·ͨ͠ˠIUUQTHJUIVCDPNUBLBQZHFFL@CMPHCMPCNBTUFSOMQTXFNQZ

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ݕূ݁Ռ

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ݕূ݁Ռ ࣮ݧ Local Public Private ϕʔεϥΠϯʢ24 featuresʣ 0.6037 0.5652 0.5802 SWEM-averʢ74 featuresʣ 0.8057 0.7476 0.7461 SWEM-maxʢ74 featuresʣ 0.7127 0.6599 0.6633 SWEM-concatʢ124 featuresʣ 0.8057 0.7435 0.7424 SWEM-hierʢ74 featuresʣ 0.8092 0.7484 0.7483

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·ͱΊ

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·ͱΊ w XPSEWFDΛ༻͍֤ͯJUFNͷ෼ࢄදݱΛܭࢉ͠ɺ͔ͦ͜Β48&.Ͱ ϢʔβʔͷຒΊࠐΈϕΫτϧΛܭࢉͯ͠Έͨ w ൺֱݕূ͢ΔͱɺຊλεΫͰ͸48&.IJFS͕Ұ൪ྑ͍ਫ਼౓ͩͬͨ w ࠓճ͸Ϣʔβʔ৘ใΛͲ͏΍ͬͯಛ௃ྔʹམͱ͠ࠐΉ͔͕ͭॏཁͳ ϙΠϯτͩͬͨ48&.Ͱࢉग़ͨ͠ϢʔβʔͷຒΊࠐΈϕΫτϧ͸ ͦͦ͜͜༗༻ͳಛ௃ྔʹͳΔ͜ͱ͕෼͔ͬͨ w ӡӦͷօ༷ɺָ͍͠ίϯϖΛ͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ😆🎉

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࠷ޙʹ

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.-ΤϯδχΞઈࢍืूதͰ͢ʂ🧑💻 ɾϥΠϑΠϕϯτ ϥΠϑελΠϧͷ՝୊ղܾΛ͢ΔαʔϏεʹڵຯ͕͋Δํ ɾػցֶशͷࣾձ࣮૷ ϓϩμΫτ։ൃʹڵຯͷ͋Δํ %.PSͦ͘ΊΜ܅ܦ༝PS8BOUFEMZܦ༝ͳͲ͝࿈བྷ͓଴͍ͪͯ͠·͢ʂ ΧδϡΞϧ໘ஊͰ͸౴͑ΒΕΔൣғͰͳΜͰ΋౴͑·͢ʂʢಛʹ४උ͸͍Γ·ͤΜʣ 5XJUUFSˠIUUQTUXJUUFSDPNUBLBQZ 8F`SF)JSJOH

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͓ΘΓ ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ