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E-mail: ͊s-nakamura@is.naist.jp࠶ࡽࡲࡋ ᮏⓎ⾲࡛ࡣ㸪㡢ኌ⩻ヂࢆ㡢ኌฎ⌮࡜⮬↛ゝㄒฎ⌮ࡢ⼥ྜ࡜ᤊ࠼㸪ࡇࢀࡲ࡛ࡢ◊✲㸪ࡑࡋ࡚㸪௒ᚋࡢ◊✲ࡢ᪉ྥᛶ࡟ࡘ࠸࡚⪃ᐹࡍࡿ㸬࣮࣮࢟࣡ࢻ 㡢ኌ⩻ヂ㸪㡢ኌㄆ㆑㸪ᶵᲔ⩻ヂ㸪⤫ィࣔࢹࣝ

[Invited Talk] Towards Fusion of Speech and Natural Language Processing
Research㸫 Past and Future of Speech Translation Research 㸫Satoshi Nakamura͊͊Graduate School of Information Science, Nara Institute of Science and Technology
8916-5 Takayama Ikoma, Nara, Japan,
E-mail: ͊s-nakamura@is.naist.jp
Keywords Speech Translation, Speech Recognition, Machine Translation, Statistical Modelling

1. 㡢 ኌ ⩻ ヂ ◊ ✲ ࡢ ࡇ ࢀ ࡲ ࡛1.1. 㡢 ኌ ⩻ ヂ ◊ ✲ 䛾๰ ⏕ ᮇ

1.2. 㡢 ኌ ㄆ ㆑ 䛻䛚䛡䜛㡢 㡪 䝰䝕䝹䛸ゝ ㄒ 䝰䝕䝹1980 ᖺ ௦ ࡟ 㡢 ኌ ㄆ ㆑ ࡣ ᝟ ሗ ⌮ ㄽ ࢆ ࣋ ࣮ ࢫ ࡟ ࡋ ࡓ ⤫⮬ศࡢヰࡋࡓ㡢ኌࢆࡑࡢሙ࡛ㄆ㆑㸪⩻ヂ㸪㡢ኌྜᡂィ ࣔ ࢹ ࣝ ࡢ ᫬ ௦ ࢆ ㏄ ࠼ ࡿ 㸬㞃 ࢀ ࣐ ࣝ ࢥ ࣇ ࣔ ࢹ ࣝ㸦 HMM㸧ࡋ࡚┦ᡭゝㄒ࡛ฟຊࡋ㸪␗࡞ࡿゝㄒࢆヰࡍேࠎ࡜ ࡢ⮬࡟ࡼࡾ㸪㡢ኌࡢⓎヰẖࡢኚືࢆṇつศᕸࡢ㞟ྜ࠿ࡽࡢ⏤࡞ࢥ࣑ࣗࢽࢣ࣮ࢩࣙࣥࢆᐇ⌧ࡍࡿࡇ࡜ࡣ㸪ே㢮ࡢ㛗⏕㉳☜⋡࡛⾲⌧࡛ࡁ㸪᫬㛫ኚືࢆ≧ែ㑄⛣☜⋡࡟ࡼࡾᖺ ࡢ ክ ࡛ ࠶ ࡿ 㸬 ᡃ ࡀ ᅜ ࡣ ୡ ⏺ ࡟ ඛ 㥑 ࡅ ࡚ 1986 ᖺ ࡟ ᅜ⾲⌧࡛ࡁࡿࡼ࠺࡟࡞ࡗࡓ㸬ࡉࡽ࡟㸪༢ㄒิࡢ☜⋡ࢆ⾲㝿 㟁 Ẽ ㏻ ಙ ᇶ ♏ ᢏ ⾡ ◊ ✲ ᡤ 㸦 ATR㸧 ෆ ࡟ 㸦 ᰴ 㸧 ATR ⮬⌧ ࡍ ࡿ N-gram ゝ ㄒ ࣔ ࢹ ࣝ ࢆ ⏝ ࠸ ࡿ ࡇ ࡜ ࡛ 㸪 㐃 ⥆ Ⓨ ヰື⩻ヂ㟁ヰ◊✲ᡤࢆⓎ㊊ࡉࡏ㸪࠸ࡕ᪩ࡃࡇࡢ◊✲ㄢ㢟㡢ኌࡢ᭱ᑬ᚟ྕ࡜࠸࠺ᙧ࡛௵ពࡢ༢ㄒิࢆㄆ㆑࡛ࡁࡿ࡟ ╔ ᡭ ࡋ ࡓ 㸬1980 ᖺ ௨ ๓ ࡢ 㡢 ኌ ㄆ ㆑ ࡣ ಙ ྕ ฎ ⌮ 㸪ࣃ ࢱࡼ࠺࡟࡞ࡗࡓ㸬ࡑࢀࡲ࡛㸪࣮࢜ࢺ࣐ࢺࣥ࡟ࡼࡿỴᐃⓗ࣮ࣥㄆ㆑㸪ືⓗィ⏬ἲ࡞࡝ࢆᇶ♏࡜ࡋ㸪㡢ኌྜᡂࡣኌ࡞ᩥἲ࡟ᇶ࡙ࡃືⓗィ⏬ἲࡀ⏝࠸ࡽࢀ࡚࠸ࡓࡀ㸪㡢ኌ㐨㸪㡢※ࣔࢹࣝ࡟ᇶ࡙ࡃඹ᣺㸪཯ඹ᣺࡟ࡼࡿ㡢ኌྜ ᡂㄆ㆑඲యࡀ᭱ᑬ᚟ྕࡢᙧ࡛෌ᐃ⩏ࡉࢀ㸪☜⋡ࢆ⏝࠸࡚ࣇ࢕ࣝࢱ➼ࢆᇶ♏࡜ࡋ࡚࠸ࡓ㸬୍᪉࡛㸪⮬↛ゝㄒฎ⌮㡢㡪ࣔࢹࣝ࡜ゝㄒࣔࢹࣝࡀ⤫ྜࡉࢀࡿࡇ࡜࡟࡞ࡗࡓ㸬ࡣ㸪ᩥἲ⌮ㄽ㸪ࣟࢪࢵࢡࢆ࣮࣋ࢫ࡜ࡋ࡚࠾ࡾ㸪␗࡞ࡿࡇࡢ᫬Ⅼࡀ㸪㡢ኌฎ⌮࡜ゝㄒฎ⌮ࡢ᭱ึࡢᮏ᱁ⓗ࡞ฟ◊✲ศ㔝࡛࠶ࡗࡓ㸬㡢ኌ⩻ヂࡣࡇࢀࡽࡢࣔࢪ࣮ࣗࣝࡢ఍ ࠸ ࡛ ࠶ ࡗ ࡓ ࡜ ᛮ ࢃ ࢀ ࡿ 㸬1990 ᖺ ௦ ࡟ ධ ࡾ 㸪ATR ࡛ ࡣ⤫ ྜ ᢏ ⾡ ࡛ ࠶ ࡾ 㸪ࡑ ࠺ ࠸ ࠺ ព ࿡ ࡛ 㸪 ATR ࡢ 㡢 ኌ ⩻ ヂ ࣉN-gram ࠿ ࡽ ࡼ ࡾ ᗈ ࠸ ᩥ ἲ ࡢ ࢡ ࣛ ࢫ ࢆ ᢅ ࠺ ࡇ ࡜ ࡢ ࡛ ࡁࣟࢪ࢙ࢡࢺࡣ᭱ึࡢ㡢ኌ◊✲⪅࡜⮬↛ゝㄒฎ⌮◊✲⪅ࡿ ࢩ ࣇ ࢺ ࣜ ࢹ ࣗ ࣮ ࢫ ࣃ ࣮ ࢨ ࢆ HMM ࡟ ⤌ ࡳ ྜ ࢃ ࡏ ࡓࡢඹྠసᴗࡢሙ࡛࠶ࡗࡓ࡜ゝ࠼ࡿ㸬➹⪅ࡣࡇࡢࣉࣟࢪHMM-LR 㡢 ኌ ㄆ ㆑ ࡀ ◊ ✲ ࡉ ࢀ ࡓ [3]㸬 ࡉ ࡽ ࡟ 㸪 1990 ᖺ࢙ࢡࢺ࡟ࡑࡢึᮇ࠿ࡽⰍࠎ࡞ᙧ࡛㛵ࢃࡗ࡚ࡁࡓ㸬ᮏ✏௦ ึ ᮇ ࡟ ࡣ ➨ 2 ᮇ ࡢ ࢽ ࣗ ࣮ ࣛ ࣝ ࢿ ࢵ ࢺ㸦 NN㸧◊ ✲ ࡀ ጞ࡛ࡣ㸪㡢ኌ⩻ヂࡢࡇࢀࡲ࡛࡜௒ᚋ࡟ࡘ࠸࡚㸪㡢ኌ◊✲ࡲ ࡾ 㸪 NN ࡟ ࡼ ࡿ ゝ ㄒ ࣔ ࢹ ࣝ ࡢ ᭱ ึ ࡢ ヨ ࡳ ࡶ ⾜ ࢃ ࢀ ࡓ࡜ゝㄒ◊✲ࡢ⼥ྜ࡜࠸࠺どⅬ࡛㏙࡭ࡿ㸬㡢ኌ⩻ヂ࡟㛵[4]㸬ࡋ ࠿ ࡋ 㸪ࡇ ࡢ ᫬ ௦ ࡣ 㸪㡢 ኌ ◊ ✲ ⪅ ࡀ N-gram, NN ➼ࡍ ࡿ ࡼ ࡾ ヲ ⣽ ࡞ ゎ ㄝ ࡣ 㹙 1,2㹛 ࢆ ཧ ↷ ࡉ ࢀ ࡓ ࠸ 㸬࡟ࡼࡿ⤫ィⓗࣔࢹࣝ࡟ࡼࡾゝㄒ᝟ሗࢆά⏝ࡋጞࡵࡓẁThis article is a technical report without peer review, and its polished and/or extended version may be published elsewhere.
This article is a technical report without peer review, and its polished and/or extended version may be publishedelsewhere.
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Copyright ©2016 by IEICE㝵࡛࠶ࡗࡓ㸬ࣛ ゝ ㄒ ᝟ ሗ ࡢ ◊ ✲ ࢆ ⾜ ࠺ ᚲ せ ࡀ ࠶ ࡿ [6]㸬1.3. ⤫ ィ ⓗ ᶵ Ე ⩻ ヂ 䛻䜘䜛㡢 ኌ 䠈ゝ ㄒ 䝰䝕䝹

2.3. 㡢 ኌ ⩻ ヂ 䛸ᑐ ヰ ไ ᚚ1990 ᖺ ࡟ IBM ࠿ ࡽ ⤫ ィ ⓗ ᶵ Ე ⩻ ヂ ࡢ ㄽ ᩥ ࡀ Ⓨ ⾲ ࡉࡇࢀࡲ࡛㸪㡢ኌ⩻ヂࡣࢸ࢟ࢫࢺ⩻ヂ࡟㡢ኌධฟຊࢆࢀ 㸪 2002 ᖺ ࡟ ከ ᩘ ࡢ ⣲ ᛶ ࢆ ⏝ ࠸ ࡿ ࡓ ࡵ ࡢ Loglinear ἲ௜୚ࡋࡓࡶࡢ࡜ᤊ࠼ࡽࢀ࡚ࡁࡓࡀ㸪᪑⾜఍ヰ࡛ࡣධฟࡀ 㸪2003 ᖺ ࡟ ࣇ ࣞ ࣮ ࢬ ࣋ ࣮ ࢫ ⤫ ィ ⩻ ヂ ࡀ ᥦ ᱌ ࡉ ࢀ 㸪⤫ຊࡀ␗࡞ࡿゝㄒ࡛⾜ࢃࢀࡿ┠ⓗᣦྥࡢᑐヰ࡜ᤊ࠼ࡿࡇィⓗᶵᲔ⩻ヂࡢࢥ࢔࡟࡞ࡿ⌮ㄽࡀ☜❧ࡉࢀࡓ㸬ࡇࡢ⤫࡜ࡶ࡛ࡁࡿ㸬㡢ኌ⩻ヂ࡛ࡶ࢔ࣉࣜࢣ࣮ࢩࣙࣥ࡜ࡋ࡚ࡣィ⩻ヂࡣ㸪㞧㡢ࡢ࠶ࡿ㏻ಙ㊰ࣔࢹࣝ࡟ᇶ࡙ ࡁ㸪ཎゝㄒ┠ⓗࡀ㐩ᡂ࡛ࡁࡓ࠿࡝࠺࠿ࡀ᭱⤊ࡢホ౯ᇶ‽࡟࡞ࡿ࠿ࡢᩥࢆ⩻ヂࣔࢹࣝ㸪ㄒ㡰ධ᭰࠼ࣔࢹࣝ㸪ᑐ㇟ゝㄒࡢゝࡽ࡛࠶ࡿ㸬≉࡟㸪᪥ᮏㄒࡣᩥ⬦౫Ꮡゝㄒ࡛࠶ࡾ㸪ヰࡋㄒࣔࢹࣝ࡟ࡼࡾྠ᫬࡟᚟ྕࡍࡿ㸬⫼ᬒ࡟࡞ࡿ㏻ಙ㊰ࣔゝⴥ࡛ࡣࡼࡾࡑࡢᛶ㉁ࡀᙉ࠸ࡓࡵ㸪ᑐヰ୰࡟୺ㄒ┬␎ࢹࣝࡀྠ୍࡛࠶ࡿࡓࡵ㸪㡢ኌㄆ㆑࡜ᶵᲔ⩻ヂࡣ࡯ࡰྠࡸ୙᏶඲ᩥࡀከⓎࡍࡿ㸬୍ ࡢ ᯟ ⤌ ࡳ ࡛ ⾜ ࠼ ࡿ 㸬 ATR ࡣ 2000 ᖺ ࠿ ࡽ ࡇ ࡢ ᯟ ⤌ ࡬2.4. 䝙䝳䞊䝷䝹䝛䝑䝖䛸ᶵ Ე ⩻ ヂࡢ᪉㔪ኚ᭦࡟ྲྀࡾ⤌ࢇࡔ㸬ࡇࢀ࡟ࡼࡾ㸪 ࣉࣟࢪ࢙ࢡࢺMikolov ࡽ ࡟ ࡼ ࡾ ศ ᩓ ⾲ ⌧ ࡀ ᥦ ᱌ ࡉ ࢀ 㸪 ⮬ ↛ ゝ ㄒ ࡟㛤 ጞ ࠿ ࡽ 14 ᖺ ࢆ ⤒ 㐣 ࡋ ࡚ ࡸ ࡗ ࡜ 㡢 ኌ ◊ ✲ ⪅ ࡜ ゝ ㄒ ฎ࠾ࡅࡿ༢ㄒ⾲⌧ࡀ㐃⥆✵㛫ࡢ࣋ࢡࢺࣝ࡜ࡋ࡚ྲྀࡾᢅ࠼⌮◊✲⪅ࡀྠࡌゝⴥ࡛㆟ㄽࡀ⾜࠼ࡿ᫬௦ࡀ฿᮶ࡋࡓ㸬ࡿࡼ࠺࡟࡞ࡗࡓ㸬ࡇࢀ࡟ࡼࡾ㡢ኌฎ⌮࡜඲ࡃྠᵝ࡞ࣔᑬᗘ᭱኱໬㸪ㄗࡾ᭱ᑠ໬࡟ࡼࡿࣔࢹࣝᏛ⩦➼㸪ྠᵝࡢࢹ ࣜ ࣥ ࢢ ࡀ ฼ ⏝ ࡛ ࡁ ࡿ 㸬 ࡲ ࡓ 㸪 2014 ᖺ ࡟ Sutskever ࡽ᪉ ἲ ࡀ 㐺 ⏝ ࡛ ࡁ ࡿ ࡼ ࠺ ࡟ ࡞ ࡗ ࡓ 㸬ᐇ ᛂ ⏝ ࢆ ┠ ᣦ ࡋ 㸪ATR࡟ ࡼ ࡾ ࢽ ࣗ ࣮ ࣛ ࣝ ࢿ ࢵ ࢺ ࡟ ᇶ ࡙ ࡃ ᶵ Ე ⩻ ヂ㸦 NMT㸧ࡀ࡛ࡣᑐ㇟ศ㔝ࢆ᪑⾜఍ヰ࡜タᐃࡋᚲせ࡞ᑐヂࢥ࣮ࣃࢫᥦ ᱌ ࡉ ࢀ ࡓ 㸬 ␚ ࡳ ㎸ ࡳ 㹌 㹌 㸦 CNN 㸧㸪 ᫬ 㛫 㐜 ࢀ NNࡢ཰㞟ࢆ⾜ࡗࡓ㸬ከᵝ࡞ヰࡋゝⴥ࡬ࡢᑐᛂ㸪ᑐヂᩥࡢ㸦 TDNN㸧㸪෌ ᖐ ᆺ NN㸪Long-Short Term Memory(LSTM)ከゝㄒ⩻ヂ࡟ࡼࡿゝㄒᑐࡢᣑᙇ 㸪ᐇᛂ⏝ࢹ࣮ࢱࡢ཰㞟➼ࡣ᪤࡟▱ࡽࢀ࡚࠸ࡓࡀ㸪ᶵᲔ⩻ヂ࡟ᑟධࡉࢀ኱ࡁ࡞࡜ᨵၿࡢ࢚ࢥ࣮ࣝࣉࡢᙧᡂࡀྍ⬟࡜࡞ࡾ㸪⌧ᅾࡢ㡢ኌᨵ ၿ ࢆ ࡶ ࡓ ࡽ ࡋ ࡓ 㸬 2015 ᖺ ࡟ ࡣ Bahdanau ࡽ ࡟ ࡼ ࡾ ὀ⩻ヂࡢᐇ⏝ᒎ㛤࡟⧅ࡀࡗ࡚࠸ࡿ㸬ព ᶵ ᵓ ௜ ࡁ LSTM ࡀ ᥦ ᱌ ࡉ ࢀ 㸪⌧ ᫬ Ⅼ ࡛ ᭱ ࡶ 㧗 ࠸ ᛶ ⬟2. ௒ ᚋ ࡢ ᒎ 㛤ࢆᐇ⌧ࡋ࡚࠸ࡿ㸬༢ㄒࡸᩥࢆ㐃⥆್⾲⌧ࡍࡿ᪉ἲࡢⓏ2.1. 㡢 ኌ ྠ ᫬ ㏻ ヂሙ࡟ࡼࡾ㸪㡢ኌࡶ⮬↛ゝㄒࡶࡍ࡭࡚ྠᵝࡢࣔࢹࣜࣥࢢ㡢ኌ⩻ヂࡢ✲ᴟࡢ┠ᶆࡣ㸪ே㛫ࡢྠ᫬㏻ヂ⪅࡟༉ᩛࢆᑟධ࡛ࡁࡿࡼ࠺࡟࡞ࡾࡘࡘ࠶ࡿ㸬ㄆ㆑ࡣධຊ㡢ኌ࡟ⱝᖸ㐜ᘏࡋ࡚ฎ⌮ࡀྍ⬟࡛ࡣ࠶ࡿࡀ㸪

3. ࡲ ࡜ ࡵゝㄒ᝟ሗ࡟ຍ࠼࡚ࣃࣛゝㄒ᝟ሗࢆ㡢ኌ࠿ࡽᢳฟࡋ㸪ೃ⿵ࡢ☜ᐃࡣⓎヰ༊ษࡾࢆ☜ᐃࡋ࡚࠿ࡽ࡛࡞࠸࡜࡛ࡁゎᯒ㸪ኚ᥮ࡍࡿࡇ࡜ࡣ㠀ᖖ࡟⯆࿡῝࠸ㄢ㢟࡛࠶ࡿ㸬ࡲࡎ㸪ࡲࡓ㸪ᶵᲔ⩻ヂࡣⓎヰᩥࡀ☜ᐃࡋ࡚࠿ࡽࡋ࠿⾜࠼ࡓ㸪㡢ኌ⩻ヂ඲యࢆ୍ࡘࡢࢩࢫࢸ࣒࡜ࡋ࡚ᢅ࠼ࡿࡇ࡜

ࡍࡿྠ᫬㏻ヂࡢ㐩ᡂ࡛࠶ࡿ㸬⌧ᅾࡢ㡢ኌ⩻ヂࡣ㸪㡢ኌ࡞࠸㸬ࡉࡽ࡟㸪㡢ኌྜᡂࡣᶵᲔ⩻ヂฟຊࡀ☜ᐃࡋ࡚࠿ࡀ ࡛ ࡁ ࢀ ࡤ 㸪 ⩻ ヂ ⢭ ᗘ ࡟ ᇶ ࡙ ࡃ ࣔ ࢪ ࣗ ࣮ ࣝ ᭱ 㐺 ໬ 㹙 7㹛ࡽࡋ࠿⾜࠼࡞࠸㸬㡢ኌྠ᫬㏻ヂࡢࡓࡵ࡟ࡣ㸪㡢ኌࡢ࣏ࡸ 㸪 End-to-end ࡢ ᙉ ໬ Ꮫ ⩦ ࡞ ࡝ ࡶ ྍ ⬟ ࡟ ࡞ ࡿ 㸬 ௒ ᚋ 㸪࣮ࢬ㸪ᇶᮏ࿘Ἴᩘ࡞࡝ࡢ㡩ᚊ࡞࡝ࢆ⏝࠸ࡓⓎヰ༊ษࡾ㡢ኌฎ⌮࡜⮬↛ゝㄒฎ⌮ࡢ◊✲඲యࢆಠ▔ࡋࡓ᪂ࡋ࠸ࡢ᳨ฟ㸪ᵓᩥᵓ㐀ࡢ᥎ᐃ㸪㏲ḟ㡢ኌㄆ㆑⤖ᯝࡢฟຊࡀᣮᡓⓗ࡞◊✲ࡀ⏕ࡲࢀࡿࡇ࡜ࢆᮇᚅࡍࡿ㸬 ከࡃࡢඹྠᚲせ࡛࠶ࡾ㸪ࡉࡽ࡟ࡣ㸪ゝㄒ㛫ࡢᩥᵓ㐀ࡢ㐪࠸ࢆ⪃៖◊✲⪅㸪Ꮫ⏕ㅖྩ࡟ࡇࡢሙࢆ೉ࡾ࡚῝ㅰࡍࡿ㸬ࡋ ࡓ ⩻ ヂ ไ ᚚ ࣓ ࢝ ࢽ ࢬ ࣒ ࡀ ᚲ せ ࡛ ࠶ ࡿ 㹙 5㹛㸬 ࡇ ࢀ ࠿ ࡽࡢ㡢ኌྠ᫬㏻ヂ࡟ࡣ㸪ࣃࣛゝㄒ㸪ゝㄒ᝟ሗ㸪⤫ㄒ᝟ሗ
ࢆ⼥ྜ㸪⤫ྜࡋ㸪ά⏝ࡍࡿᚲせࡀ࠶ࡿ㸬

2.2. 䝟䝷ゝ ㄒ ᝟ ሗ 䛾ᚲ せ ᛶே㛫ࡀᮏ᮶ࢥ࣑ࣗࢽࢣ࣮ࢩࣙࣥ࡟⏝࠸࡚࠸ࡿ᝟ሗࡣ㸪ゝㄒ᝟ሗ㸦㏻ᖖࡢࢸ࢟ࢫࢺ᝟ሗ㸧࡟ຍ࠼࡚㸪ࣃࣛゝ ㄒ ᝟ ሗ㸦 㡩 ᚊ 㸪ᙉ ㄪ 㸪ឤ ᝟ 㸧㸪㠀 ゝ ㄒ ᝟ ሗ㸦 ಶ ே ᛶ ➼ 㸧ࡀ࠶ࡿ㸬ࡇࢀࡲ࡛㸪㡢ኌㄆ㆑࡛ࡣዴఱ࡟ṇ☜࡟㡢ኌࢆᩥᏐ໬ࡍࡿ࠿ࡀ◊✲ᑐ㇟࡛㸪ᶵᲔ⩻ヂ࡛ࡣỗ⏝ࡢࢸ࢟ࢫࢺ⩻ヂࡢᛶ⬟ࢆᨵၿࡋ㡢ኌ⩻ヂ࡟㐺⏝ࡍࡿ࠿ࡀ୺║࡛࠶ࡗࡓࡓࡵ㸪ࣃࣛゝㄒ᝟ሗ࡟ὀ┠ࡍࡿࡇ࡜ࡀ࡞࠿ࡗࡓ 㸬ࡋ ࠿ ࡋ 㸪ࢥ ࣑ ࣗ ࢽ ࢣ ࣮ ࢩ ࣙ ࣥ ࡟ ࠾ ࡅ ࡿ ᝟ ሗ ఏ 㐩 ᗘ 㸪ពᅗࡢఏ㐩ᗘࢆ⪃៖ࡍࡿ࡜㸪ࣃࣛゝㄒ᝟ሗࡀ㠀ᖖ࡟㔜せ࡞ᙺ๭ࢆᢸࡗ࡚࠸ࡿ㸬௒ᚋࡣ ࣜ࢔ࣝࢱ࢖࣒ࡢ㡢ኌࢥ࣑ࣗࢽࢣ࣮ࢩࣙࣥ࡟࠾࠸࡚㔜せ࡞ࣇ࢓ࢡࢱ࣮࡜ࡋ࡚ࣃ

ᩥ⊩[1] ୰ ᮧ  ဴ , ͆ ヰ ࡋ ゝ ⴥ ࡢ 㡢 ኌ ⩻ ヂ ᢏ ⾡ ,͇ 㟁 Ꮚ ᝟ ሗ㏻ ಙ Ꮫ ఍ ㄅ , vol.96(11), pp865-873, 2013.11[2] ୰ ᮧ  ဴ 㸪 ” 㡢 ኌ ⩻ ヂ ᢏ ⾡ ᴫ ほ ͆ 㸪 㟁 Ꮚ ᝟ ሗ ㏻ ಙᏛ ఍ ㄅ 㸪 vol 98(8), pp.702-709, 2015.08[3] T.Hanazawa,et al., “ATR HMM-LR continuous speech
recognition system”, Proc. ICASSP 1990
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ICASSP 1990
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Translation,” Proc. of INTERSPEECH 2013[6] Q.T.Do,et al., “Transferring Emphasis in Speech
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