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第4回ソーイAI勉強会:自然言語処理
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sewii
July 04, 2025
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第4回ソーイAI勉強会:自然言語処理
sewii
July 04, 2025
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Transcript
ୈճɿࣗવݴޠॲཧ
ࣗવݴޠॲཧͱ
ࣗવݴޠɿ ຊޠӳޠͳͲɺਓ͕ੜ·Εͳ͕Βʹ͏ݴ༿ͷ͜ͱ ࣗવݴޠॲཧɿ ᐆດ͞ΛؚΉࣗવݴޠΛίϯϐϡʔλʹཧղͤ͞ΔͨΊ ͷٕज़
ࣗવݴޠॲཧͷྲྀΕ ਂֶशҎલ FOEUPFOEֶश ج൫Ϟσϧ େنݴޠϞσϧ
ࣗવݴޠॲཧͷྲྀΕ ਂֶशҎલ FOEUPFOEֶश ج൫Ϟσϧ େنݴޠϞσϧ ਂֶशϒʔϜ͕࢝·Δ
ݚڀ͕ຊ֨తʹ࢝·ͬͨͷ ʹϩγΞޠ͔ΒӳޠͷίϯϐϡʔλʹΑΔػց༁࣮ݧ ͕ެ։͞Ε͍ͯΔɻ ˞༁ͱ͍ͬͯɺݶΒΕͨ୯ޠͷஔ͖͑ͱฒͼସ͑ϧʔϧͰߏ͞Εͨͷ
ࣗવݴޠॲཧͦ͠͏ˠత༻్ʹΑͬͯλεΫʹׂʂʂ λεΫ આ໌ ػց༁ ςΩετΛଞͷݴޠʹ༁͢Δɻ ײੳ ςΩετͷײʢωΨϙδʣΛఆ͢Δɻ ςΩετཁ ςΩετͷཁΛநग़͍ͯ͠ཁΛ࡞͢Δɻ ࣭Ԡ
࣭ʹର͢Δ͑Λݟ͚ͭΔɻ จষੜ ৽͍͠จষΛੜ͢Δɻ ςΩετྨ ςΩετΛಛఆͷΧςΰϦʹྨ͢Δɻ ಛநग़ ςΩετ͔ΒಛఆͷใΛநग़͢Δɻ ҙຯղੳ ୯ޠจͷҙຯΛཧղ͢Δɻ ςΩετϚΠχϯά େྔͷςΩετσʔλ͔ΒύλʔϯτϨϯυΛநग़͢Δɻ ରγεςϜ ਓؒͱίϯϐϡʔλͷձΛߦ͏ɻ
λεΫΛ͞Βʹ αϒλεΫʹׂ ਂֶशҎલ จষΛ୯ޠʹ͚Δʢܗଶૉղੳʣ ୯ޠͷରԠؔΛݟ͚ͭΔ ༁తͳ༁จީิ ༁ͷࣗવ͞ΛධՁ ࠷ऴతͳ༁จΛ࡞Δ ػց༁λεΫ
ɿਂֶश͕ϒʔϜ ˠ֤λεΫͷධՁࢦඪਓؒʹ͍͖ͭ࢝Ίͨ
XPSE7FDֵ໋͕Λى͜͢ʂʂ
୯ޠΛϕΫτϧʹม͢Δͷ ˠ୯ޠͷҙຯΛԽ XPSE7FDͱʁ ҙຯ͕ࣅ͍ͯΔʂʂ
XPSEWFDʹΑΔ୯ޠͷྨࣅੑΛՄࢹԽ
ਂֶशͷར༻͕ਐΉ ˠFOEUPFOEֶश͕Մೳʹʂʂ
ਂֶशҎલ αϒλεΫ αϒλεΫ αϒλεΫ σʔλ ग़ྗ ਂ χϡʔϥϧ ωοτϫʔΫ σʔλ
ग़ྗ FOEUPFOEֶश
ج൫ϞσϧʹΑͬͯ͞Βʹʂʂ
ج൫Ϟσϧɿ ʮ൚༻తͳݴޠೳྗʯΛ֫ಘͨ͠ χϡʔϥϧݴޠϞσϧ λεΫ͝ͱʹඍௐ͢Δ͜ͱʹΑ Γ༻͢Δ େن Ϟσϧ େن σʔλ ࣗݾڭࢣ
͋Γ ඍௐ σʔλ ग़ྗ
ˠܶతͳਫ਼ͷ্ ˠλεΫݴޠΛԣஅͯ͠ɺΛղ͘͜ͱ ج൫ϞσϧͰՄೳʹͳͬͨ͜ͱ
ج൫Ϟσϧ͔ΒେنݴޠϞσϧ
େنݴޠϞσϧ ˠෳͷλεΫ͕ඍௐͳ͠Ͱ ରԠՄೳʹ େن ݴޠ Ϟσϧ େن σʔλ ࣗݾڭࢣ ͋Γ
ϓϩϯϓτ ʴ σʔλ ग़ྗ
ࣗવݴޠॲཧͷྲྀΕ·ͱΊ ਂֶशҎલ FOEUPFOEֶश ج൫Ϟσϧ େنݴޠϞσϧ
ͲͷΑ͏ʹࣗવݴޠΛཧղͤ͞Δ͔ʁ
ਓ͕ؒจষΛཧղ͢Δ࣌ɺແҙࣝʹจઅ୯ޠʹղ͢Δ ίϯϐϡʔλ͕จΛѻ͏߹ ·ͣѻ͑Δ෦ͷղ͔Β࢝ΊΔ
ͲͷΑ͏ʹจষΛղ͢Δͷ͔ʁ
ݱࡏαϒϫʔυʢจࣈͱ୯ޠͷதؒͷ୯ҐʣͰׂ͍ͯ͠Δ JOUFSOBUJPOBM *OUFSOʜ JOUFSOBUJPOBM JOUFSOBUJPOBM จࣈ ୯ޠ αϒϫʔυ
จࣈ ୯ޠ αϒϫʔυ τʔΫϯɿׂ୯Ґͷ͜ͱ ˞τʔΫφΠβʔɿτʔΫϯʹׂ͢Δπʔϧ
ͳͥ୯ޠจࣈͰׂ͢Δͱμϝͳͷ͔ʁ
ͱͱ୯ޠʹΑΔׂ͕Ұൠతͩͬͨ *IBWFBQFO ࢲϖϯΛ͍࣋ͬͯΔ *IBWFBQFO ࢲϖϯΛ͍࣋ͬͯΔ ۭന ܗଶૉղੳث
ܗଶૉղੳثɿ ࣙॻʹج͍ͮͯ୯ޠׂ Λߦ͏πʔϧ .F$BC+VNBO ͕͋Δ ࢲϖϯΛ͍࣋ͬͯΔ ࢲϖϯΛ͍࣋ͬͯΔ ࣙॻ ܗଶૉղੳث
୯ޠʹΑΔׂͷ ҙຯͷґଘ େͳޠኮ ະޠͷରԠ
ҙຯͷґଘ ٿ ٿ
ٿ ٿ ղ͢Δͱ ݩͷҙຯ͕յΕͯ͠·͏ʂʂ
ߴߍٿ ߴߍ ٿ ߴߍٿͩͱׂͰ͖ͦ͏
ߴߍٿͷΠϝʔδ͕ࣦΘΕͯ͠·͏ͷͰͳ͍͔ʁ ՆͷԌఱԼ ߕࢠԂ ݩ͔ΒͷԠԉ టष͞ ੨य़
ҙຯΛ࣋ͬͨ୯ޠͰ͚Δͱ ͲΕΛ̍ޠͱѻ͏͔͕ᐆດ
ࣙॻʹࡌ͍ͬͯͳ͍୯ޠ ਖ਼ׂ͘͠Ͱ͖ͳ͍ ະޠͷରԠ ࢲϖϯΛ͍࣋ͬͯΔ ࢲϖϯΛ͍࣋ͬͯΔ ࣙॻ ܗଶૉղੳث
*1"%*$ɿ .F$BCʹඪ४Ͱଐ͍ͯ͠Δجຊతͳࣙॻɻʢສޠʣ NFDBCJQBEJD/&PMPHEɿ *1"%*$Λϕʔεʹɺ৽ޠݻ༗໊ࢺʢܳೳਓɾ໊ɾωοτε ϥϯάͳͲʣΛେྔʹՃ֦ͨ͠ுࣙॻɻʢ*1"%*$ ສޠʣ ˞࣌ େͳޠኮ
*1"%*$ɿ .F$BCʹඪ४Ͱଐ͍ͯ͠Δجຊతͳࣙॻɻʢສޠʣ NFDBCJQBEJD/&PMPHEɿ *1"%*$Λϕʔεʹɺ৽ޠݻ༗໊ࢺʢܳೳਓɾ໊ɾωοτε ϥϯάͳͲʣΛେྔʹՃ֦ͨ͠ுࣙॻɻʢ*1"%*$ ສޠʣ ˞࣌ େͳޠኮ ίϯϐϡʔλॲཧͷେ͖ͳোʹͳͬͯ͠·͏ʂʂ
୯ޠʹΑΔׂͷ ҙຯͷґଘ େͳޠኮ ະޠͷରԠ
୯ޠʹΑΔׂͷ ҙຯͷґଘ େͳޠኮ ະޠͷରԠ จࣈͰͷׂͲ͏͔ʁ
จࣈͷछྨ͕ଟ͗͢Δ ৽͘͠Ճ͞ΕΔจࣈͷରԠ͕ࠔ 6OJDPEF ࣌ ສࣈʂʂ จࣈͰͷׂͲ͏͔ʁ
ͳͥαϒϫʔυΛ͏ͷ͔ʁ
αϒϫʔυɿจࣈͱ୯ޠͷதؒͷ୯Ґ
େྔͷςΩετσʔλ͔Β౷ܭతʹʮසൟʹొ͠ɺ͔ͭҙຯ ͷ͋Δ·ͱ·ΓʯΛֶश *OUFSOFU ࠃࡍతͳωοτϫʔΫ JOUFSBDUJPO ૬ޓ࡞༻ JOUFSTUFMMBS ߃ؒͷ JOUFSˠʮԿ͔ͱԿ͔ͷؒʯʮ૬ޓʯ
ˠະޠʹରԠͰ͖Δʂʂ Ϟσϧ͕Ұݟͨ͜ͱͷͳ͍JOUFSGBDFͱ͍͏ະޠ͕ग़ ͖ͯͯ<JOUFS GBDF>ͱׂ͠ҙຯΛղऍ ˠׂ͕ҙຯʹґଘ͠ͳ͍
ੈքΛද͢Δ"*ϞσϧͰɺ͓Αͦສʙສఔͷαϒϫ ʔυͷΈ߹ΘͤͰɺਓ͕ؒ͏ແͷݴ༿ΛදݱͰ͖Δ ˠܭࢉෛՙͷݮʂʂ ଟݴޠରԠϞσϧͩͱສʙສҎ্
୯ޠʹΑΔׂͷ ҙຯͷґଘ େͳޠኮ ະޠͷରԠ αϒϫʔυͰͯ͢ղܾʂʂ
͜ͷαϒϫʔυͷҙຯΛ ͲͷΑ͏ʹίϯϐϡʔλʹཧղͤ͞Δͷʁ ࣍ճ
࣍ճͷ༧ఆ
XPSEWFD ຒΊࠐΈϕΫτϧ