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新幹線の話(2)
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yutakau
September 02, 2017
Technology
240
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新幹線の話(2)
新幹線の動画の音声レベルから、新幹線が来ているかどうかを判定した試みについてLTした資料です
yutakau
September 02, 2017
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Transcript
৽װઢͷࣸਅͷ ʢ̎ʣ
ࣗݾհ :VUBLB6TVJ ΤϯδχΞ ڵຯͷ͋Δɿɹిࢠ࡞ɺ'1("ɺ ɹɹɹɹɹɹɹɹɹ̏%ϓϦϯςΟϯά
ࣗͷϕϥϯμ͔Βͷ෩ܠ
৽װઢ͕Α͘ݟ͑Δ
ͱ͜Ζ͕ ͜͏͍͏ϨΞͳ͕͍ͭͬͯΔͷΛݟͨ͜ͱ͕ͳ͍
લճͷ·ͱΊ ػցֶशͰ ৽װઢؚ͕·ΕΔը૾Λબผ ͋ΔఔͰ͖͕ͨɺඍົͳ݁Ռɻ ʢ͖ͪΜͱධՁͰ͖ͣʣ
લճͷ·ͱΊ ػցֶशͰ ৽װઢؚ͕·ΕΔը૾Λબผ ͋ΔఔͰ͖͕ͨɺඍົͳ݁Ռɻ ʢ͖ͪΜͱධՁͰ͖ͣʣ
લճ͍ͨΞυόΠε ී௨ʹԻΛͬͯ৽װઢͷ͋Γͳ͠ఆͨ͠ ํ͕ྑ͍ͷͰͳ͍͔ʁ ԻͰͬͯΈͨ
खॱ ಈըσʔλ ̍,)[ͰϦαϯϓϦϯά ԻΓग़͠
Իσʔλ ·ͣɺ୯७ʹ͖͍͠Ҏ্͔Ͱఆͯ͠ΈΔ ͋ΔϨϕϧҎ্ͷԻͳΒ৽װઢ͋Γɺͱ͢Δ
ఆྔతͳੳ ఆϓϩάϥϜ࡞ ਖ਼ղσʔλΛ࡞ ͷಈըΛɺ̍ඵ͝ͱʹΓग़͠ɻ ৽װઢͷ༗ແΛख࡞ۀͰϥϕϦϯά ˠݸͷϥϕϧσʔλ XBWσʔλΛ̍ඵ͝ͱʹΓग़͠ɺ ͖͍͠ͱൺֱͯ͠ఆॲཧ
$POGVTJPO.BUSJY ྨ݁ՌΛ·ͱΊͨද ఆΫϥε Positive Negative ࣮ࡍͷ Ϋϥε Positive True Positive
False Negative Negative False Positive True Negative ఆΫϥεɿఆͷ݁Ռ ࣮ࡍͷΫϥεɿ࣮ࡍͷσʔλ
$POGVTJPO.BUSJY ৽װઢʹͯΊΔͱ ఆΫϥε Positive Negative ࣮ࡍͷ Ϋϥε Positive True Positive
False Negative Negative False Positive True Negative ৽װઢདྷ͍ͯΔ ৽װઢདྷ͍ͯͳ͍ ৽װઢདྷ͍ͯΔ ͱఆ ৽װઢདྷ͍ͯͳ͍ ͱఆ 513ʹ51ʗʢ51ʴ'/ʣ '13ʹ'1ʗʢ'1ʴ5/ʣ
$POGVTJPO.BUSJY ৽װઢσʔλʹͯΊΔͱ ఆΫϥε Positive Negative ࣮ࡍͷ Ϋϥε Positive True Positive
False Negative Negative False Positive True Negative ৽װઢདྷ͍ͯΔ ৽װઢདྷ͍ͯͳ͍ ৽װઢདྷ͍ͯΔ ͱఆ ৽װઢདྷ͍ͯͳ͍ ͱఆ ޡఆ औΓ͜΅͠
$POGVTJPO.BUSJY ৽װઢσʔλʹͯΊΔͱ ఆΫϥε Positive Negative ࣮ࡍͷ Ϋϥε Positive True Positive
False Negative Negative False Positive True Negative ৽װઢདྷ͍ͯΔ ৽װઢདྷ͍ͯͳ͍ ৽װઢདྷ͍ͯΔ ͱఆ ৽װઢདྷ͍ͯͳ͍ ͱఆ 513ɿ࣮ࡍʹ৽װઢདྷ͍ͯΔ࣌ʹདྷ͍ͯΔͱఆͨ͠ '13৽װઢདྷ͍ͯͳ͍࣌ʹɺདྷ͍ͯΔͱఆͨ͠
݁Ռ 513 '13
ੳͨ݁͠Ռ εϨογϣϧυΛͲ͏ܾΊΔ͔ ̍ɹ৽װઢҎ֎ͷ૽Իɹ ɹɹόΠΫɺࣗಈंͷԻɺαΠϨϯ ̎ɹ৽װઢͷԻେ͖͕͞ҧ͏ ɹɹ౦ژߦ͖ͱ৽େࡕߦ͖ͰԻϨϕϧ͕ҧ͏ ɹɹεϐʔυ͕ҧ͏ʁ ̏ɹͦͦ ৽װઢ͘Δ͔ͳΓલ͔ΒԻೖͬͯ͘Δ