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日本語の形態素解析
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Yumeto Inaoka
January 26, 2017
Technology
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460
日本語の形態素解析
2017/01/26のB3ゼミで発表
Yumeto Inaoka
January 26, 2017
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Transcript
ຊޠͷܗଶૉղੳ #θϛ ࣗવݴޠॲཧݚڀࣨɹֶ෦ɹҴԬເਓ
ࢀߟʹͨ͠ॻ੶
ൃද༰ ˗ ܗଶૉղੳͰߦ͏͜ͱ ˗ ୯ޠࣙॻɾ࿈Մೳੑߦྻ ˗ ܗଶૉղੳީิͷྻڍ ˗ ղੳީิ͔Βղͷܾఆ ˗
ະޠͷॲཧ
ܗଶૉղੳ ˗ จΛ୯ޠຖʹ۠Δ ˗ ࢺΛೝࣝ͢Δ ˗ ׆༻Λೝࣝ͢Δ
ܗଶૉղੳ ˗ จΛ୯ޠຖʹ۠Δ ˗ ࢺΛೝࣝ͢Δ ˗ ׆༻Λೝࣝ͢Δ ͓ۚͰങ͑ͳ͍Ձ͕͋Δɻ
ܗଶૉղੳ ˗ จΛ୯ޠຖʹ۠Δ ˗ ࢺΛೝࣝ͢Δ ˗ ׆༻Λೝࣝ͢Δ ͓ ۚ
Ͱ ങ͑ ͳ͍ Ձ ͕ ͋Δ ɻ
ܗଶૉղੳ ˗ จΛ୯ޠຖʹ۠Δ ˗ ࢺΛೝࣝ͢Δ ˗ ׆༻Λೝࣝ͢Δ ͓ ಄ࣙ
ۚ ໊ࢺ Ͱ ॿࢺ ങ͑ ಈࢺ ͳ͍ ॿಈࢺ Ձ ໊ࢺ ͕ ॿࢺ ͋Δ ಈࢺ ɻ ۟
ܗଶૉղੳ ˗ จΛ୯ޠຖʹ۠Δ ˗ ࢺΛೝࣝ͢Δ ˗ ׆༻Λೝࣝ͢Δ ͓ ಄ࣙ
ۚ ໊ࢺ Ͱ ॿࢺ ങ͑ ಈࢺ ԼҰஈະવܗ ͳ͍ ॿಈࢺ ࿈ମܗ Ձ ໊ࢺ ͕ ॿࢺ ͋Δ ಈࢺ ޒஈऴࢭܗ ɻ ۟
୯ޠࣙॻ ୯ޠͷදهɺࢺɺ׆༻ͳͲΛ هड़ͨࣙ͠ॻ දه ࢺ ׆༻ ݩؾ ໊ࢺ ʔ
୫ ໊ࢺ ʔ ͳΔ ಈࢺ ޒஈ ʹ ॿࢺ ʔ ୲͏ ಈࢺ ޒஈ ࠜ ໊ࢺ ʔ ৸Δ ಈࢺ ԼҰஈ Β ඌࣙ ʔ
࿈Մೳੑߦྻ ͲͷΑ͏ͳࢺͷ୯ޠ͕จதͰ࿈ଓ͠ಘΔ͔Λද͢ จ ໊ࢺ ಈࢺ ॿࢺ ඌࣙ จ಄
໊ࢺ ಈࢺ ॿࢺ ඌࣙ
࿈Մೳੑߦྻ ͲͷΑ͏ͳࢺͷ୯ޠ͕จதͰ࿈ଓ͠ಘΔ͔Λද͢ จ ໊ࢺ ಈࢺ ॿࢺ ඌࣙ จ಄
໊ࢺ ಈࢺ ॿࢺ ඌࣙ
࿈Մೳੑߦྻ ͲͷΑ͏ͳࢺͷ୯ޠ͕จதͰ࿈ଓ͠ಘΔ͔Λද͢ จ ໊ࢺ ಈࢺ ॿࢺ ඌࣙ จ಄
໊ࢺ ಈࢺ ॿࢺ ඌࣙ
ܗଶૉղੳީิͷྻڍ จ಄ ͶͨΒݩؾʹͳͬͨ
ܗଶૉղੳީิͷྻڍ จ಄ Ͷ ࠜ ໊ࢺ Ͷͨ ৸Δ
ಈࢺ ͶͨΒ ৸Δ ಈࢺ ͶͨΒݩؾʹͳͬͨ
ܗଶૉղੳީิͷྻڍ จ಄ Ͷ ࠜ ໊ࢺ ͨΒ ୫
໊ࢺ Ͷͨ ৸Δ ಈࢺ ͶͨΒ ৸Δ ಈࢺ ͶͨΒݩؾʹͳͬͨ
ܗଶૉղੳީิͷྻڍ จ಄ Ͷ ࠜ ໊ࢺ ͨΒ ୫
໊ࢺ Ͷͨ ৸Δ ಈࢺ Β ඌࣙ ͶͨΒ ৸Δ ಈࢺ ͶͨΒݩؾʹͳͬͨ
ܗଶૉղੳީิͷྻڍ จ಄ Ͷ ࠜ ໊ࢺ ͨΒ ୫
໊ࢺ Ͷͨ ৸Δ ಈࢺ Β ඌࣙ ͶͨΒ ৸Δ ಈࢺ ͶͨΒݩؾʹͳͬͨ º จ ໊ࢺ ಈࢺ ॿࢺ ඌࣙ จ಄ ໊ࢺ ಈࢺ ॿࢺ ඌࣙ
ܗଶૉղੳީิͷྻڍ จ಄ Ͷ ࠜ ໊ࢺ ͨΒ ୫
໊ࢺ Ͷͨ ৸Δ ಈࢺ Β ඌࣙ ͶͨΒ ৸Δ ಈࢺ ͶͨΒݩؾʹͳͬͨ º
ܗଶૉղੳީิͷྻڍ จ಄ Ͷ ࠜ ໊ࢺ ͨΒ ୫
໊ࢺ ݩؾ ໊ࢺ Ͷͨ ৸Δ ಈࢺ Β ඌࣙ ͶͨΒ ৸Δ ಈࢺ ͶͨΒݩؾʹͳͬͨ º
ܗଶૉղੳީิͷྻڍ จ಄ Ͷ ࠜ ໊ࢺ ͨΒ ୫
໊ࢺ ݩؾ ໊ࢺ Ͷͨ ৸Δ ಈࢺ Β ඌࣙ ͶͨΒ ৸Δ ಈࢺ ʹ ॿࢺ ͳͬͨ ͳΔ ಈࢺ ʹͳͬͨ ୲͏ ಈࢺ จ º ͶͨΒݩؾʹͳͬͨ ϥςΟεදݱ
ܗଶૉղੳީิͷྻڍ จ಄ Ͷ ࠜ ໊ࢺ ͨΒ ୫
໊ࢺ ݩؾ ໊ࢺ Ͷͨ ৸Δ ಈࢺ Β ඌࣙ ͶͨΒ ৸Δ ಈࢺ ʹ ॿࢺ ͳͬͨ ͳΔ ಈࢺ ʹͳͬͨ ୲͏ ಈࢺ จ º ͶͨΒݩؾʹͳͬͨ
ܗଶૉղੳީิͷྻڍ จ಄ Ͷ ࠜ ໊ࢺ ͨΒ ୫
໊ࢺ ݩؾ ໊ࢺ Ͷͨ ৸Δ ಈࢺ Β ඌࣙ ͶͨΒ ৸Δ ಈࢺ ʹ ॿࢺ ͳͬͨ ͳΔ ಈࢺ ʹͳͬͨ ୲͏ ಈࢺ จ º ͶͨΒݩؾʹͳͬͨ
ܗଶૉղੳީิͷྻڍ จ಄ Ͷ ࠜ ໊ࢺ ͨΒ ୫
໊ࢺ ݩؾ ໊ࢺ Ͷͨ ৸Δ ಈࢺ Β ඌࣙ ͶͨΒ ৸Δ ಈࢺ ʹ ॿࢺ ͳͬͨ ͳΔ ಈࢺ ʹͳͬͨ ୲͏ ಈࢺ จ º ͶͨΒݩؾʹͳͬͨ
ܗଶૉղੳީิͷྻڍ จ಄ Ͷ ࠜ ໊ࢺ ͨΒ ୫
໊ࢺ ݩؾ ໊ࢺ Ͷͨ ৸Δ ಈࢺ Β ඌࣙ ͶͨΒ ৸Δ ಈࢺ ʹ ॿࢺ ͳͬͨ ͳΔ ಈࢺ ʹͳͬͨ ୲͏ ಈࢺ จ º ͶͨΒݩؾʹͳͬͨ
ղੳީิ͔Βղͷܾఆ ˗ ୯ޠࣙॻɺ࿈Մೳߦྻ͚ͩͰղΛܾఆͰ͖ͳ͍ ˗ ϥςΟεߏίετΛ༩ ˗ ίετͷ࠷͍ީิΛղͱ͢Δʢίετ࠷খ๏ʣ
ϥςΟεߏͷίετͷ༩ จ಄ Ͷ ࠜ ໊ࢺ ͨΒ ୫
໊ࢺ ݩؾ ໊ࢺ Ͷͨ ৸Δ ಈࢺ Β ඌࣙ ͶͨΒ ৸Δ ಈࢺ ʹ ॿࢺ ͳͬͨ ͳΔ ಈࢺ ʹͳͬͨ ୲͏ ಈࢺ จ º
ϥςΟεߏͷίετͷ༩ จ಄ Ͷ ࠜ ໊ࢺ ͨΒ ୫
໊ࢺ ݩؾ ໊ࢺ Ͷͨ ৸Δ ಈࢺ Β ඌࣙ ͶͨΒ ৸Δ ಈࢺ ʹ ॿࢺ ͳͬͨ ͳΔ ಈࢺ ʹͳͬͨ ୲͏ ಈࢺ จ º
ϥςΟεߏͷίετͷ༩ จ಄ Ͷ ࠜ ໊ࢺ ͨΒ ୫
໊ࢺ ݩؾ ໊ࢺ Ͷͨ ৸Δ ಈࢺ Β ඌࣙ ͶͨΒ ৸Δ ಈࢺ ʹ ॿࢺ ͳͬͨ ͳΔ ಈࢺ ʹͳͬͨ ୲͏ ಈࢺ จ º
֤ީิͷίετͷࢉग़ จ಄ Ͷ ࠜ ໊ࢺ ͨΒ ୫
໊ࢺ ݩؾ ໊ࢺ Ͷͨ ৸Δ ಈࢺ Β ඌࣙ ͶͨΒ ৸Δ ಈࢺ ʹ ॿࢺ ͳͬͨ ͳΔ ಈࢺ ʹͳͬͨ ୲͏ ಈࢺ จ º
֤ީิͷίετͷࢉग़ จ಄ Ͷ ࠜ ໊ࢺ ͨΒ ୫
໊ࢺ ݩؾ ໊ࢺ Ͷͨ ৸Δ ಈࢺ Β ඌࣙ ͶͨΒ ৸Δ ಈࢺ ʹ ॿࢺ ͳͬͨ ͳΔ ಈࢺ ʹͳͬͨ ୲͏ ಈࢺ จ º
֤ީิͷίετͷࢉग़ ˗ ࠜɹ୫ɹݩؾɹʹɹͳͬͨ ˗ ࠜɹ୫ɹݩؾɹ୲ͬͨ ˗ ৸ͨΒɹݩؾɹʹɹͳͬͨ ˗ ৸ͨΒɹݩؾɹ୲ͬͨ
ˠ ˠ ˠ ࠷খ ˠ
࠷খίετͷީิͷ୳ࡧ ˗ ޠኮͷ૿ՃɺೖྗจͷจԽͰީิരൃతʹ૿Ճ ˠશީิͷίετࢉग़࣮࣭ෆՄೳ ˗ ೖྗจΛׂ͠ɺͦΕͧΕͷ݁ՌΛ౷߹ ˠೖྗจͷจԽʹΑΔީิͷ૿ՃΛ͑ΒΕΔ
ϏλϏΞϧΰϦζϜ ˗ ಈతܭը๏ %ZOBNJD1SPHSBNNJOH%1 ͷͻͱͭ ˗ .F$BCɺ$IBTFOͰ࠾༻͞Ε͍ͯΔ ˗ ӳจͷࢺղੳͳͲʹ༻͞Ε͍ͯΔ
ϏλϏΞϧΰϦζϜ จ಄ Ͷ ࠜ ໊ࢺ ͨΒ ୫
໊ࢺ ݩؾ ໊ࢺ Ͷͨ ৸Δ ಈࢺ Β ඌࣙ ͶͨΒ ৸Δ ಈࢺ ʹ ॿࢺ ͳͬͨ ͳΔ ಈࢺ ʹͳͬͨ ୲͏ ಈࢺ จ º
ϏλϏΞϧΰϦζϜ จ಄ Ͷ ࠜ ໊ࢺ ͨΒ ୫
໊ࢺ ݩؾ ໊ࢺ Ͷͨ ৸Δ ಈࢺ Β ඌࣙ ͶͨΒ ৸Δ ಈࢺ ʹ ॿࢺ ͳͬͨ ͳΔ ಈࢺ ʹͳͬͨ ୲͏ ಈࢺ จ º
ϏλϏΞϧΰϦζϜ จ಄ Ͷ ࠜ ໊ࢺ ͨΒ ୫
໊ࢺ ݩؾ ໊ࢺ Ͷͨ ৸Δ ಈࢺ Β ඌࣙ ͶͨΒ ৸Δ ಈࢺ ʹ ॿࢺ ͳͬͨ ͳΔ ಈࢺ ʹͳͬͨ ୲͏ ಈࢺ จ º
ະޠͷॲཧ ˗ จதʹະޠ͕ग़ΔͱϥςΟεߏ͕࡞ΒΕͳ͍ ˠղੳΛߦ͏͜ͱ͕Ͱ͖ͳ͍ ˗ ࣈɾΧλΧφͷ࿈ଓΛҰޠͱ͠ɺߴ͍ίετΛ༩ ˠࣙॻͷޠͷΈͰղऍͰ͖ΔͳΒͦͪΒΛ༻ ˠແཧ͕͋ΔͳΒٖࣅతͳޠΛ༻
ൃදͨ͠༰ ˗ ܗଶૉղੳͰߦ͏͜ͱ ˗ ୯ޠࣙॻɾ࿈Մೳੑߦྻ ˗ ܗଶૉղੳީิͷྻڍ ˗ ղੳީิ͔Βղͷܾఆ ˗
ະޠͷॲཧ