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2017_B3_Seminar_3
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kakubari
February 10, 2017
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2017_B3_Seminar_3
長岡技術科学大学
自然言語処理研究室
角張竜晴
kakubari
February 10, 2017
Transcript
21 slides
Ԭٕज़Պֶେֶ ిؾిࢠใֶ՝ఔ ֶ෦ɹ֯ுཽ ࣗવݴޠݚڀࣨ ɹ#̏θϛ ʙୈճʙ ϏοΫσʔλղੳೖ
目次 ˔ϏοΫσʔλͱ ˔ϏοΫσʔλͷཧ 6/*9 ˔౷ܭॲཧͷܭࢉޡࠩ
ビックデータとは ˔ϏοΫσʔλͱ ɹʮ̏7ʯଈͪɺ7PMVNF ༰ྔ 7BSJFUZ
छྨ 7FMPDJUZ ੵස Ὃ σʔλͷ༰ྔ͕େ͖͘ɺσʔλͷछྨ͕ଟ༷Ͱɺ σʔλͷੵස͕ଟ͍ɻ
ビックデータの管理(UNIX) ˔ϏοΫσʔλͷ༰Λ֬ೝ͢Δ σʔλͷ༰ΛΔ͜ͱͰɺߦ͏͖ղੳํ๏͕ܾ ·Δ ɹ⾣DBUɿϑΝΠϧͷதΛશͯදࣔ ɹ⾣MFTTɿදࣔϞʔυͱͳΓɺϑΝΠϧͷதΛදࣔ ɹɹRΛԡ͢͜ͱͰऴྃ͢Δ
DBUpMFDTW MFTTpMFDTW
ビックデータの管理(UNIX) ɹ⾣IFBEOɿϑΝΠϧͷઌ಄͔ΒOߦ͚ͩදࣔ ɹ⾣dcIFBEɿʮʛʢύΠϓʣʯΑΓલͷ࣮ߦ݁Ռ ɹɹɹɹɹɹɹΛ࠷ॳͷߦ͚ͩදࣔ ɹ⾣UBJMrOɿϑΝΠϧͷ࠷ޙ͔ΒOߦ͚ͩදࣔ
IFBErOpMFDTW TBNQMFQZpMFDTWcIFBE UBJMrOpMFDTW
ビックデータの管理(UNIX) ˔ϏοΫσʔλΛཧ͢Δ ղੳ͕͍͢͠Α͏ʹɺσʔλͷஔநग़Λߦ͏ ɹ⾣TFEɿσʔλͷஔ ɹɹTͷ࣍ͷͷؒͷจࣈ͕ɺ ɹɹɹHͷલͷͷؒͷจࣈʹஔ͞ΕΔ TFElT HzpMFDTW
ビックデータの管理(UNIX) ɹ⾣zT @zɿҰߦͷΧϯϚΛ@ʹஔ ɹ⾣TFElddzɿηϛίϩϯͰ۠Δ͜ͱͰɺ ɹɹɹɹɹɹɹɹͭͳ͛ͯॲཧΛهड़Ͱ͖Δ ɹ⾣ ϦμΠϨΫτ ɿग़ྗ݁ՌΛϑΝΠϧʹॻࠐΈ
TFElT @T HzpMFDTWPVUQVUUYU
ビックデータの管理(UNIX) ɹ⾣BXLɿඞཁͳ߲ͷநग़ ɹɹɹɹҰߦͣͭ۠Γ͋ΔจࣈྻΛॲཧ͢Δ ɹɹ'
ɿΧϯϚ۠ΓͰॲཧ͢Δ͜ͱΛ໌ࣔ ɹɹɹɹʢσϑΥϧτͰεϖʔε۠Γʣ BXLr' b\QSJOU^`pMFDTWPVUQVUUYU pMFDTW BQQMF PSBOHF CBOBOB PVUQVUUYU
ビックデータの管理(UNIX) ɹ⾣BXLϓϩάϥϛϯάݴޠ ɹɹQSJOUG GPSจ JGจͳͲ͕͑Δ BXLr'b\QSJOUG lTEݸaOz ^`pMFDTWPVUQVUUYU
pMFDTW BQQMF PSBOHF CBOBOB PVUQVUUYU BQQMFݸ PSBOHFݸ CBOBOBݸ
ビックデータの管理(UNIX) ɹ⾣HSFQldzɿσʔλͷத͔ΒdΛؚΉߦΛݕࡧ ɹ ɹ⾣HSFQrWldzɿσʔλͷத͔ΒdΛؚ·ͳ͍ߦΛݕࡧ HSFQlFzpMFDTWPVUQVUUYU pMFDTW
BQQMF PSBOHF CBOBOB PVUQVUUYU BQQMF PSBOHF HSFQrWlFzpMFDTWPVUQVUUYU PVUQVUUYU CBOBOB
ビックデータの管理(UNIX) ɹ⾣TPSUɿσʔλͷฒͼସ͑ ɹɹྦྷੵؔσʔλͷ࠷খɾ࠷େ ɹɹɹΛ֬ೝ͢Δ߹ʹ༻͍Δ ɹLҰྻʹண͠ɺHࣈͰฒͼସ͑Δɻ
ɹU ΧϯϚ۠ΓͷϑΝΠϧͰ͋Δ͜ͱΛද͢ɻ TPSUrLHrU pMFDTW pMFDTW BQQMF PSBOHF CBOBOB PVUQVUUYU CBOBOB BQQMF PSBOHF
ビックデータの管理(UNIX) ɹ⾣VOJRɿಉ͡σʔλΛ·ͱΊΔ ɹ⾣VOJRrDɿಉ͡σʔλΛ·ͱΊɺΧϯτ͢Δ
ɹ TPSUrLHpMFDTWcVOJR pMFDTW PVUQVUUYU TPSUrLHVpMFDTW TPSUrLHpMFDTWcVOJRD PVUQVUUYU
統計処理の計算誤差 ˔ޡࠩ ɹϏοΫσʔλղੳΛ͢Δ্Ͱɺʮظ͞ΕΔͱɺ ଌఆܭࢉͳͲͰಘΒΕͨͱͷࠩʯ ˔ޡࠩͷྨ ɹ⾣ϞσϧԽޡࠩ ɹ⾣ۙࣅޡࠩ ɹ⾣ܥ౷ޡࠩɺۮવޡࠩ ɹ⾣ܭࢉޡࠩ
統計処理の計算誤差 ⾣ϞσϧԽޡࠩ ɹϞσϧԽͷࡍʹෳࡶԽΛආ͚ΔͨΊʹແࢹ͞Εͨཁ ૉ͕ͨΒ͢ޡࠩ ɹྫʣৼΓࢠͷӡಈํఔࣜ ɹɹɹɾۭؾ߅Λແࢹ ɹɹɹɾมҟ͕ඍখͳͷ
統計処理の計算誤差 ⾣ۙࣅޡࠩ ɹܭࢉͷ؆ૉԽͷͨΊʹۙࣅࣜΛ༻͍Δ͜ͱʹΑΔޡࠩ ɹྫʣTJO Λܭࢉ ɹɹɹTJO Y dYͰۙࣅ͢Δͱɺ
TJO d ɹɹɹ࣮ࡍʹɺ TJO ɹɹɹΑͬͯɺ͕ۙࣅޡࠩ
統計処理の計算誤差 ⾣ܥ౷ޡࠩ ɹଌఆͷํ๏ʹΑͬͯݱΕͯ͠·͏ޡࠩ ɹҰͭͷଌఆํ๏Ͱଌఆ͢ΔݶΓɺࢼߦճΛॏͶ ͯऔΓআ͔Εͣɺ౷ܭతʹͣΕ͕؍ଌ͞ΕΔ ⾣ۮવޡࠩ ɹଌఆ͝ͱʹଌఆʹΒ͖͕ͭੜ·ΕΔ͜ͱʹΑΔޡࠩ
統計処理の計算誤差 ⾣ܭࢉޡࠩ ɹ1$ͰܭࢉΛߦ͏ࡍʹɺແݶΛѻ͑ͳ͍͜ͱʹΑΔޡࠩ ɹʙܭࢉޡࠩͷछྨʙ ɹɹ˗ؙΊޡࠩ ɹɹ˗ଧͪΓޡࠩ ɹɹ˗ใམͪ
統計処理の計算誤差 ˗ؙΊޡࠩ ɹ༗ޮࣈൣғ֎ͷ෦͕ࣺͯΒΕΔ͜ͱʹΑΔޡࠩ ɹྫʣʜ ɹɹɹ༗ޮࣈ͕ܻ̏ͷ߹ɺ ɹɹɹ͜ͷͱ͖ɺʜ
統計処理の計算誤差 ˔ଧͪΓޡࠩ ɹֶͰ༻͍ΔࣜͰɺཧతͳͱͯ͠ແݶݸͷΛ ߟ͑Δɻेʹۃݶڃʹ͍ۙͱஅܻͨ͠ Ͱଧͪͬͨͱ͖ͷޡࠩɹ ɹྫʣ
ʜ ɹ
統計処理の計算誤差 ˔ใམͪɹ ɹઈରʹେ͖ͳ͕ࠩ͋ΔೋͭͷͷՃݮΛߦͬͨ ߹ʹɺܭࢉ͕·ͱʹߦΘΕͳ͍͜ͱʹΑΔޡࠩ ɹྫʣ༗ޮࣈܻ̑ͷ Y Zº Y Z
ɹɹɹ༗ޮࣈܻ̑ͰΓམͱ͢ͱ
参考文献 ˔ߴ҆ඒࠤࢠฤஶɺాଜޫଠɾࡾӜߤஶɺ ɹʮֶੜɾٕज़ऀͷͨΊͷϏοΫσʔλղੳೖʯ ʢୈ̍ষʙୈ̏ষʣɺ ɹגࣜձࣾຊධࣾɺ݄
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