Publications


 Book Chapters
  1. Daichi Kitamura, Nobutaka Ono, Hiroshi Sawada, Hirokazu Kameoka, and Hiroshi Saruwatari, "Determined blind source separation with independent low-rank matrix analysis," Audio Source Separation. Signals and Communication Technology., Shoji Makino, Ed. Springer, Cham, pp. 125–155, March 2018.
    (Springer Link)

  2. 北村大地, "Q11 ビームフォーミングって何ですか?," 音響学入門ペディア, 日本音響学会編, コロナ社, pp. 44–47, March 2017.


 Journal Papers
  1. Daichi Kitamura, Shinichi Mogami, Yoshiki Mitsui, Norihiro Takamune, Hiroshi Saruwatari, Nobutaka Ono, Yu Takahashi, and Kazunobu Kondo, "Generalized independent low-rank matrix analysis using heavy-tailed distributions for blind source separation," EURASIP Journal on Advances in Signal Processing, vol. 2018, no. 1, p. 28, May, 2018.
    (EURASIP JASP)

  2. Daichi Kitamura, Nobutaka Ono, Hiroshi Sawada, Hirokazu Kameoka, and Hiroshi Saruwatari, "Determined blind source separation unifying independent vector analysis and nonnegative matrix factorization," IEEE/ACM Transactions on Audio, Speech, and Language Processing, vol. 24, no. 9, pp. 1626–1641, September, 2016 (ACM Computing Reviews Annual Best of Computing Notable Books and Articles in Computing, IEEE SPS Japan Best Paper Award).
    (IEEE Xplore, Supporting document)

  3. Daichi Kitamura, Hiroshi Saruwatari, Hirokazu Kameoka, Yu Takahashi, Kazunobu Kondo, and Satoshi Nakamura, "Multichannel signal separation combining directional clustering and nonnegative matrix factorization with spectrogram restoration," IEEE/ACM Transactions on Audio, Speech, and Language Processing, vol. 23, no. 4, pp. 654–669, April 2015 (TAF The Telecom System Technology Student Award).
    (IEEE Xplore)

  4. Daichi Kitamura, Hiroshi Saruwatari, Kosuke Yagi, Kiyohiro Shikano, Yu Takahashi, and Kazunobu Kondo, "Music signal separation based on supervised nonnegative matrix factorization with orthogonality and maximum-divergence penalties," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol. E97-A, no. 5, pp. 1113–1118, May 2014.
    (IEICE, PDF, IEICE Transactions Online, Copyright (c) 2014 IEICE)

  5. Yoshiaki Bando, Hiroshi Saruwatari, Nobutaka Ono, Shoji Makino, Katsutoshi Itoyama, Daichi Kitamura, Masaru Ishimura, Moe Takakusaki, Narumi Mae, Kouei Yamaoka, Yutaro Matsui, Yuichi Ambe, Masashi Konyo, Satoshi Tadokoro, Kazuyoshi Yoshii, and Hiroshi G. Okuno, "Low-latency and high-quality two-stage human-voice-enhancement system for a hose-shaped rescue robot," Journal of Robotics and Mechatronics, vol. 29, no. 1, pp.198–212, February 2017.
    (Fuji Technology Press Ltd.)

  6. Tomo Miyauchi, Daichi Kitamura, Hiroshi Saruwatari, and Satoshi Nakamura, "Depth estimation of sound images using directional clustering and activation-shared nonnegative matrix factorization," Journal of Signal Processing, vol. 18, no. 4, pp. 217–220, July 2014 (corresponding author).
    (J-STAGE)

  7. Masahiro Harazono, Daichi Kitamura, and Masashi Nakayama, "Humbucking pickup response excited by string vibration," Acoustical Science and Technology, vol. 33, no. 5, pp. 301–309, September 2012.
    (J-STAGE)


 Peer-Reviewed International Conference Proceedings
  1. Daichi Kitamura, Nobutaka Ono, and Hiroshi Saruwatari, "Experimental analysis of optimal window length for independent low-rank matrix analysis," Proceedings of European Signal Processing Conference (EUSIPCO 2017), pp. 1210–1214, Kos, Greece, August 2017 (Invited Special Session).
    (PDF, Slide)

  2. Daichi Kitamura and Nobutaka Ono, "Efficient initialization for nonnegative matrix factorization based on nonnegative independent component analysis," Proceedings of International Workshop on Acoustic Signal Enhancement (IWAENC 2016), Xi'an, China, September 2016 (IWAENC Student Paper Competition Finalist).
    (IEEE Xplore, Slide)

  3. Daichi Kitamura, Nobutaka Ono, Hiroshi Saruwatari, Yu Takahashi, and Kazunobu Kondo, "Discriminative and reconstructive basis training for audio source separation with semi-supervised nonnegative matrix factorization," Proceedings of International Workshop on Acoustic Signal Enhancement (IWAENC 2016), Xi'an, China, September 2016.
    (IEEE Xplore, Poster)

  4. Daichi Kitamura, Nobutaka Ono, Hiroshi Sawada, Hirokazu Kameoka, and Hiroshi Saruwatari, "Relaxation of rank-1 spatial constraint in overdetermined blind source separation," Proceedings of European Signal Processing Conference (EUSIPCO 2015), pp. 1271–1275, Nice, France, August 2015 (Invited Special Session).
    (PDF, Slide)

  5. Daichi Kitamura, Nobutaka Ono, Hiroshi Sawada, Hirokazu Kameoka, and Hiroshi Saruwatari, "Efficient multichannel nonnegative matrix factorization exploiting rank-1 spatial model," Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2015), pp. 276–280, Brisbane, Australia, April 2015 (IEEE SPS Japan Student Conference Paper Award).
    (IEEE Xplore, Poster)

  6. Daichi Kitamura, Hiroshi Saruwatari, Satoshi Nakamura, Yu Takahashi, Kazunobu Kondo, and Hirokazu Kameoka, "Hybrid multichannel signal separation using supervised nonnegative matrix factorization with spectrogram restoration," Proceedings of Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC 2014), Siem Reap, Cambodia, December 2014 (Invited Special Session).
    (IEEE Xplore, Slide)

  7. Daichi Kitamura, Hiroshi Saruwatari, Satoshi Nakamura, Yu Takahashi, Kazunobu Kondo, and Hirokazu Kameoka, "Divergence optimization in nonnegative matrix factorization with spectrogram restoration for multichannel signal separation," Proceedings of Joint Workshop on Hands-free Speech Communication and Microphone Arrays (HSCMA 2014), pp. 92–96, Nancy, France, May 2014.
    (IEEE Xplore, Slide)

  8. Daichi Kitamura, Hiroshi Saruwatari, Satoshi Nakamura, Yu Takahashi, Kazunobu Kondo, and Hirokazu Kameoka, "Online divergence switching for superresolution-based nonnegative matrix factorization," Proceedings of RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP 2014), pp. 485–488, Hawaii, U.S.A., March 2014 (NCSP Student Paper Award).
    (Slide)

  9. Daichi Kitamura, Hiroshi Saruwatari, Kosuke Yagi, Kiyohiro Shikano, Yu Takahashi, and Kazunobu Kondo, "Robust music signal separation based on supervised nonnegative matrix factorization with prevention of basis sharing," Proceedings of IEEE International Symposium on Signal Processing and Information Technology (ISSPIT 2013), pp. 392–397, Athens, Greece, December 2013.
    (IEEE Xplore, Slide)

  10. Daichi Kitamura, Hiroshi Saruwatari, Kiyohiro Shikano, Kazunobu Kondo, and Yu Takahashi, "Music signal separation by supervised nonnegative matrix factorization with basis deformation," Proceedings of IEEE International Conference on Digital Signal Processing (DSP 2013), Santorini, Greece, July 2013.
    (IEEE Xplore, Poster)

  11. Daichi Kitamura, Hiroshi Saruwatari, Yusuke Iwao, Kiyohiro Shikano, Kazunobu Kondo, and Yu Takahashi, "Superresolution-based stereo signal separation via supervised nonnegative matrix factorization," Proceedings of IEEE International Conference on Digital Signal Processing (DSP 2013), Santorini, Greece, July 2013.
    (IEEE Xplore, Slide)

  12. Daichi Kitamura, Hiroshi Saruwatari, Kiyohiro Shikano, Kazunobu Kondo, and Yu Takahashi, "Regularized superresolution-based binaural signal separation with nonnegative matrix factorization," Proceedings of International Conference on 3D Systems and Applications (3DSA 2013), Osaka, Japan, June 2013.
    (PDF, Slide)

  13. Shinichi Mogami, Hayato Sumino, Daichi Kitamura, Norihiro Takamune, Shinnosuke Takamichi, Hiroshi Saruwatari, and Nobutaka Ono, "Independent deeply learned matrix analysis for multichannel audio source separation," Proceedings of European Signal Processing Conference (EUSIPCO 2018), pp. ???–???, Roma, Italy, September, 2018 (accepted).

  14. Kohei Yatabe and Daichi Kitamura, "Determined blind source separation via proximal splitting algorithm," Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2018), pp. 776–780, Calgary, Canada, April, 2018.
    (Preprint PDF)

  15. Yoshiki Mitsui, Norihiro Takamune, Daichi Kitamura, Hiroshi Saruwatari, Yu Takahashi, and Kazunobu Kondo, "Vectorwise coordinate descent algorithm for spatially regularized independent low-rank matrix analysis," Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2018), pp. 746–750, Calgary, Canada, April, 2018.

  16. Narumi Mae, Koei Yamaoka, Yoshiki Mitsui, Mitsuo Matsumoto, Shoji Makino, Daichi Kitamura, Nobutaka Ono, Takeshi Yamada, and Hiroshi Saruwatari, "Ego noise reduction and sound localization adapted to human ears using hose-shaped rescue robot," Proceedings of RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP 2018), pp. 371–374, Hawaii, USA, March 2018.

  17. Moe Takakusaki, Daichi Kitamura, Nobutaka Ono, Shoji Makino, Takeshi Yamada, and Hiroshi Saruwatari, "Ego-noise reduction for hose-shaped rescue robot using basis-shared semi-supervised independent low-rank matrix analysis," Proceedings of RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP 2018), pp. 351–354, Hawaii, USA, March 2018 (Student Paper Award).

  18. Narumi Mae, Yoshiki Mitsui, Shoji Makino, Daichi Kitamura, Nobutaka Ono, Takeshi Yamada, and Hiroshi Saruwatari, "Sound source localization using binaural different for hose-shaped rescue robot," Proceedings of Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC 2017), Kuala Lumpur, Malaysia, December, 2017.

  19. Yoshiki Mitsui, Daichi Kitamura, Norihiro Takamune, Hiroshi Saruwatari, Yu Takahashi, and Kazunobu Kondo, "Independent low-rank matrix analysis based on parametric majorization-equalization algorithm," Proceedings of IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP 2017), pp. 98–102, Curaçao, Dutch Antilles, December, 2017.

  20. Shinichi Mogami, Daichi Kitamura, Yoshiki Mitsui, Norihiro Takamune, Hiroshi Saruwatari, and Nobutaka Ono, "Independent low-rank matrix analysis based on complex Student's t-distribution for blind audio source separation," Proceedings of IEEE International Workshop on Machine Learning for Signal Processing (MLSP 2017), Tokyo, Japan, September 2017.

  21. Yoshiki Mitsui, Daichi Kitamura, Shinnosuke Takamichi, Nobutaka Ono, and Hiroshi Saruwatari, "Blind source separation based on independent low-rank matrix analysis with sparse regularization for time-series activity," Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2017), pp. 21–25, New Orleans, U.S.A., March, 2017 (ICASSP Student Paper Contest Finalist, IEEE SPS Japan Student Conference Paper Award).

  22. Antoine Liutkus, Fabian-Robert Stöter, Zafar Rafii, Daichi Kitamura, Bertrand Rivet, Nobutaka Ito, Nobutaka Ono, and Julie Fontecave, "The 2016 signal separation evaluation campaign," Proceedings of International Conference on Latent Variable Analysis and Signal Separation (LVA/ICA 2017), pp. 323–332, Grenoble, France, February, 2017.
    (Springer Link, PDF)

  23. Narumi Mae, Masaru Ishimura, Daichi Kitamura, Nobutaka Ono, Takeshi Yamada, Shoji Makino, and Hiroshi Saruwatari, "Ego noise reduction for hose-shaped rescue robot combining independent low-rank matrix analysis and multichannel noise cancellation," Proceedings of International Conference on Latent Variable Analysis and Signal Separation (LVA/ICA 2017), pp. 141–151, Grenoble, France, February, 2017.
    (Springer Link)

  24. Narumi Mae, Daichi Kitamura, Masaru Ishimura, Takeshi Yamada, and Shoji Makino, "Ego noise reduction for hose-shaped rescue robot combining independent low-rank matrix analysis and noise cancellation," Proceedings of Asia-Pacific Signal and Information Process Processing Association Annual Summit and Conference (APSIPA ASC 2016), Jeju, Korea, December 2016.
    (IEEE Xplore)

  25. Hiroaki Nakajima, Daichi Kitamura, Norihiro Takamune, Shoichi Koyama, Hiroshi Saruwatari, Yu Takahashi, and Kazunobu Kondo, "Audio signal separation using supervised NMF with time-variant all-pole-model-based basis deformation," Proceedings of Asia-Pacific Signal and Information Process Processing Association Annual Summit and Conference (APSIPA ASC 2016), Jeju, Korea, December 2016.
    (IEEE Xplore)

  26. Moe Takakusaki, Daichi Kitamura, Nobutaka Ono, Takeshi Yamada, Shoji Makino, and Hiroshi Saruwatari, "Ego-noise reduction for a hose-shaped rescue robot using determined rank-1 multichannel nonnegative matrix factorization," Proceedings of International Workshop on Acoustic Signal Enhancement (IWAENC 2016), Xi'an, China, September 2016.
    (IEEE Xplore)

  27. Hiroaki Nakajima, Daichi Kitamura, Norihiro Takamune, Shoichi Koyama, Hiroshi Saruwatari, Nobutaka Ono, Yu Takahashi, and Kazunobu Kondo, "Music signal separation using supervised NMF with all-pole-model-based discriminative basis deformation," Proceedings of European Signal Processing Conference (EUSIPCO 2016), pp.1143–1147, Budapest, Hungary, August 2016.
    (PDF, Poster)

  28. Nobutaka Ono, Zafar Rafii, Daichi Kitamura, Nobutaka Ito, and Antoine Liutkus, "The 2015 signal separation evaluation campaign," Proceedings of International Conference on Latent Variable Analysis and Signal Separation (LVA/ICA 2015), Liberec, Czech, August 2015.
    (ACM Digital Library, PDF)

  29. Yuki Murota, Daichi Kitamura, Shoichi Koyama, Hiroshi Saruwatari, and Satoshi Nakamura, "Statistical modeling of binaural signal and its application to binaural source separation," Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2015), pp. 494–498, Brisbane, Australia, April 2015.
    (IEEE Xplore)

  30. Yuki Murota, Daichi Kitamura, Hiroshi Saruwatari, Satoshi Nakamura, Yu Takahashi, and Kazunobu Kondo, "Music signal separation based on Bayesian spectral amplitude estimator with automatic target prior adaptation," Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2014), pp. 7540–7544, Florence, Italy, May 2014.
    (IEEE Xplore, Poster)

  31. Tomo Miyauchi, Daichi Kitamura, Hiroshi Saruwatari, and Satoshi Nakamura, "Depth estimation of sound images using directional clustering and activation-shared nonnegative matrix factorization," Proceedings of RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP 2014), pp. 437–440, Hawaii, U.S.A., March 2014 (NCSP Student Paper Award).
    (Slide)


 Domestic Workshop Proceedings
  1. 北村大地, 高宗典玄, 最上伸一, 三井祥幹, 猿渡洋, 高橋祐, 近藤多伸, "ヘビーテイルな分布に基づく⾮負値⾏列因⼦分解を⽤いたスパース雑⾳除去," 日本音響学会 2018年春季研究発表会講演論文集, 1-4-14, pp. 441–444, Saitama, March 2018.
    (Slide)

  2. 北村大地, 小野順貴, "独立性基準を用いた非負値行列因子分解の効果的な初期値決定法," 日本音響学会 2016年春季研究発表会講演論文集, 3-3-5, pp. 619–622, Kanagawa, March 2016.
    (J-GLOBAL, PDF, Slide)

  3. 北村大地, 猿渡洋, 小野順貴, 澤田宏, 亀岡弘和, "ランク1空間近似を用いたBSSにおける音源及び空間モデルの考察," 日本音響学会 2015年秋季研究発表会講演論文集, 3-6-10, pp. 583–586, Fukushima, September 2015.
    (J-GLOBAL, PDF, Slide)

  4. 北村大地, 小野順貴, 澤田宏, 亀岡弘和, 猿渡洋, "過決定条件BSSにおけるランク1 空間制約の緩和," 日本音響学会 2015年春季研究発表会講演論文集, 3-10-11, pp. 629–632, Tokyo, March 2015.
    (J-GLOBAL, PDF, Slide)

  5. Daichi Kitamura, Nobutaka Ono, Hiroshi Sawada, Hirokazu Kameoka, and Hiroshi Saruwatari, "Efficient multichannel nonnegative matrix factorization with rank-1 spatial model," Proceedings of 2014 Autumn Meeting of Acoustical Society of Japan, 2-1-11, pp. 579–582, Hokkaido, September 2014 (in Japanese, ASJ 粟屋 潔学術奨励賞).
    (J-GLOBAL, PDF, Slide)

  6. Daichi Kitamura, Hiroshi Saruwatari, Satoshi Nakamura, Kazunobu Kondo, Yu Takahashi, and Hirokazu Kameoka, "Optimal divergence diversity for superresolution-based nonnegative matrix factorization," Proceedings of 2014 Spring Meeting of Acoustical Society of Japan, 3-2-9, pp. 727–730, Tokyo, March 2014.
    (J-GLOBAL, PDF, Slide)

  7. Daichi Kitamura, Hiroshi Saruwatari, Satoshi Nakamura, Kazunobu Kondo, and Yu Takahashi, "Divergence optimization based on trade-off between separation and extrapolation abilities in superresolution-based nonnegative matrix factorization," Proceedings of 2013 Autumn Meeting of Acoustical Society of Japan, 1-1-6, pp. 583–586, Aichi, September 2013 (ASJ 学生優秀発表賞).
    (J-GLOBAL, PDF, Slide)

  8. Daichi Kitamura, Hiroshi Saruwatari, Kiyohiro Shikano, Kazunobu Kondo, and Yu Takahashi, "Evaluation of separation accuracy for various real instruments based on supervised NMF with basis deformation," Proceedings of 2013 Spring Meeting of Acoustical Society of Japan, 3-1-11, pp. 1057–1060, Tokyo, March 2013.
    (J-GLOBAL, PDF, Slide)

  9. 北村大地, 原囿正博, "模擬ハムバッキング・ピックアップの弦振動応答," 電子情報通信学会 2011年総合大会講演論文集, vol. 2011, A-10-6, p. 170, Tokyo, March 2011.
    (CiNii, Slide)

  10. 北村大地, 原囿正博, "擬似ハムバッキングピックアップの弦振動応答," 電気関係学会 2010年四国支部連合大会講演論文集, vol. 2010, 16-13, Ehime, September 2010.
    (J-GLOBAL, Slide)

  11. 北村大地, 原囿正博, "エレクトリックギター音のシミュレーション," 電気関係学会 2009年四国支部連合大会講演論文集, vol. 2009, 16-5, Ehime, September 2009 (IEICE四国支部連合大会 奨励賞).
    (J-GLOBAL, Slide)

  12. 角野隼斗, 北村大地, 高宗典玄, 高道慎之介, 猿渡洋, 小野順貴, "独立深層学習行列分析に基づく多チャネル音源分離," 日本音響学会 2018年春季研究発表会講演論文集, 1-4-16, pp. 449–452, Saitama, March 2018.

  13. 三井祥幹, 高宗典玄, 北村大地, 猿渡洋, 高橋祐, 近藤多伸, 中嶋広明, "空間モデル正則化を⽤いた独⽴低ランク⾏列分析に基づくブラインド⾳源分離," 日本音響学会 2018年春季研究発表会講演論文集, 1-4-15, pp. 445–448, Saitama, March 2018.

  14. 矢田部浩平, 北村大地, "近接分離最適化によるブラインド⾳源分離," 日本音響学会 2018年春季研究発表会講演論文集, 1-4-10, pp. 431–434, Saitama, March 2018.
    (Slide)

  15. 最上伸一, 三井祥幹, 高宗典玄, 北村大地, 猿渡洋, 高橋祐, 近藤多伸, 中嶋広明, 亀岡弘和, "Iダイバージェンスに基づく独⽴低ランク⾏列分析の実験的評価," 日本音響学会 2018年春季研究発表会講演論文集, 1-4-8, pp. 423–426, Saitama, March 2018.

  16. 宇根昌和, 齋藤佑樹, 高道慎之介, 北村大地, 宮崎亮一, 猿渡 洋, "雑音環境下音声を用いたDNN音声合成のための雑音生成モデルの敵対的学習," 日本音響学会 2018年春季研究発表会講演論文集, 3-8-8, pp. 243–244, Saitama, March 2018.

  17. 三井祥幹, 北村大地, 高宗典玄, 猿渡洋, 高橋祐, 近藤多伸, "パラメトリック補助関数法に基づく独立低ランク行列分析を用いたブラインド音源分離," 日本音響学会 2017年秋季研究発表会講演論文集, 3-12-13, pp. 519–522, Ehime, September 2017.

  18. 最上伸一, 北村大地, 高宗典玄, 三井祥幹, 猿渡洋, 小野順貴, 高橋祐, 近藤多伸, "複素Student's t分布に基づく独立低ランク行列分析の実験的評価," 日本音響学会 2017年秋季研究発表会講演論文集, 3-12-12, pp. 515–518, Ehime, September 2017.

  19. 三井祥幹, 溝口聡, 猿渡洋, 越智景子, 北村大地, 小野順貴, 石村大, 前成美, 高草木萌, 松井裕太郎, 山岡洸瑛, 牧野昭二, "柔軟索状ロボットにおける独立低ランク行列分析と統計的音声強調に基づく高品質ブラインド音源分離の開発," 日本機械学会 ロボティクス・メカトロニクス講演会 (ROBOMECH 2017)講演論文集, no. 17-2, 1P2-P04, Fukushima, May 2017.

  20. 三井祥幹, 溝口聡, 猿渡洋, 越智景子, 北村大地, 小野順貴, 石村大, 前成美, 高草木萌, 松井裕太郎, 山岡洸瑛, 牧野昭二, "独立低ランク行列分析と統計的音声強調を用いた柔軟索状ロボットにおけるブラインド音源分離システムの開発," 日本音響学会 2017年春季研究発表会講演論文集, 1-P-3, pp. 517–518, Kanagawa, March 2017.

  21. 三井祥幹, 北村大地, 高道慎之介, 猿渡洋, "スパース時系列正則化に基づく独立低ランク行列分析を用いたブラインド音源分離," 日本音響学会 2016年秋季研究発表会講演論文集, 1-7-3, pp. 325–328, Toyama, September 2016.
    (J-GLOBAL, PDF)

  22. 高草木萌, 北村大地, 小野順貴, 山田武志, 牧野昭二, 猿渡洋, "ランク1空間モデル制約付き多チャネルNMFを用いた柔軟索状ロボットにおける雑音抑圧," 日本機械学会 ロボティクス・メカトロニクス講演会 (ROBOMECH 2016)講演論文集, no. 16-2, 1A2-10a3, Kanagawa, June 2016.

  23. 高草木萌, 北村大地, 小野順貴, 山田武志, 牧野昭二, 猿渡洋, "ランク1空間モデル制約付き多チャネルNMFを用いた雑音抑圧の柔軟索状ロボットへの適用," 電子情報通信学会 2016年総合大会講演論文集, A-5-1, Fukuoka, March 2016.
    (CiNii)

  24. 高田一真, 北村大地, 中嶋広明, 小山翔一, 猿渡洋, 小野順貴, 牧野昭二, "教師あり多チャネルNMFと統計的音声強調を用いた柔軟索状ロボットにおける音源分離," 日本音響学会 2016年春季研究発表会講演論文集, 3-3-2, pp. 609–612, Kanagawa, March 2016.
    (J-GLOBAL, PDF)

  25. 中嶋広明, 北村大地, 高宗典玄, 小山翔一, 猿渡洋, 小野順貴, 高橋祐, 近藤多伸, "時変な全極モデルを用いた基底変形型教師ありNMFによる音楽信号分離," 日本音響学会 2016年春季研究発表会講演論文集, 3-3-11, pp. 635–638, Kanagawa, March 2016.
    (J-GLOBAL, PDF)

  26. 中嶋広明, 北村大地, 高宗典玄, 小山翔一, 猿渡洋, 小野順貴, 高橋祐, 近藤多伸, "全極モデルを用いた基底変形型教師ありNMFによる音楽信号分離," 日本音響学会 2015年秋季研究発表会講演論文集, 3-6-7, pp. 573–576, Fukushima, September 2015 (ASJ 学生優秀発表賞).
    (J-GLOBAL, PDF)

  27. 室田勇騎, 北村大地, 小山翔一, 猿渡洋, 中村哲, "時系列事前分布モデルとスペクトル基底の同時適応を用いたバイノーラル音源分離の実験的評価," 日本音響学会 2015年春季研究発表会講演論文集, 1-10-12, pp. 549–552, Tokyo, March 2015.
    (J-GLOBAL, PDF)

  28. 室田勇騎, 北村大地, 小山翔一, 猿渡洋, 中村哲, "バイノーラル信号音源分離における両耳事前分布モデルの考察," 日本音響学会 2014年秋季研究発表会講演論文集, 1-1-3, pp. 595–598, Hokkaido, September 2014 (ASJ 学生優秀発表賞).
    (J-GLOBAL, PDF)

  29. 宮内智, 北村大地, 猿渡洋, 中村哲, "音源到来方向分布とアクティベーション共有型非負値行列因子分解を用いた音像深度推定," 日本音響学会 2014年春季研究発表会講演論文集, 1-1-5, pp. 947–950, Tokyo, March 2014 (ASJ 学生優秀発表賞).
    (J-GLOBAL, PDF)

  30. 室田勇騎, 北村大地, 中井駿介, 猿渡洋, 中村哲, 高橋祐, 近藤多伸, "統計モデルパラメータ推定を用いたポストフィルタに基づく非負値行列因子分解の実験的評価," 日本音響学会 2014年春季研究発表会講演論文集, 2-1-5, pp. 677–680, Tokyo, March 2014.
    (J-GLOBAL, PDF)

  31. 宮内智, 北村大地, 猿渡洋, 中村哲, "方位クラスタリングと非負値行列因子分解を用いた音像深度自動推定," 日本音響学会 2013年秋季研究発表会講演論文集, 2-1-19, pp. 673–676, Aichi, September 2013.
    (J-GLOBAL, PDF, Slide)


 Technical Reports
  1. 北村大地, 角野隼斗, 高宗典玄, 高道慎之介, 猿渡洋, 猿渡洋, 小野順貴, "独立深層学習行列分析に基づく多チャネル音源分離の実験的評価," IEICE Technical Report, EA2017-104, vol. 117, no. 515, pp. 13–20, Okinawa, March 2018.
    (PDF, IEICE Transactions Online, Copyright (c) 2017 IEICE, Slide)

  2. 北村大地, 小野順貴, 澤田宏, 亀岡弘和, 猿渡洋, "独立低ランク行列分析に基づくブラインド音源分離," IEICE Technical Report, EA2017-56, vol. 117, no. 255, pp. 73–80, Toyama, October 2017 (招待講演).
    (PDF, IEICE Transactions Online, Copyright (c) 2017 IEICE, Slide)

  3. 北村大地, 小野順貴, 猿渡洋, 高橋祐, 近藤多伸, "半教師あり非負値行列因子分解における音源分離性能向上のための効果的な基底学習法," IEICE Technical Report, EA2015-130, vol. 115, no. 521, pp. 355–360, Oita, March 2016.
    (CiNii, Slide)

  4. 北村大地, 小野順貴, 澤田宏, 亀岡弘和, 猿渡洋, "多チャネル非負値行列因子分解におけるランク1空間モデルの音源分離性能評価," Proceedings of 107th IPSJ Special Interest Group on Music and Computer (IPSJ-SIGMUS), vol. 2015-MUS-107, no. 31, Tokyo, May 2015.
    (IPSJ, Poster)

  5. Daichi Kitamura, Hiroshi Saruwatari, Satoshi Nakamura, Yu Takahashi, Kazunobu Kondo, and Hirokazu Kameoka, "Experimental evaluation of superresolution-based nonnegative matrix factorization for binaural recording," Proceedings of 103th IPSJ Special Interest Group on Music and Computer (IPSJ-SIGMUS), vol. 2014-MUS-103, no. 38, Tokyo, May 2014.
    (IPSJ, Poster)

  6. Daichi Kitamura, Hiroshi Saruwatari, Kosuke Yagi, Kiyohiro Shikano, Yu Takahashi, and Kazunobu Kondo, "Music signal separation using supervised nonnegative matrix factorization with orthogonality and maximum-divergence penalties," Proceedings of 28th Signal Processing Symposium (SIP Symposium), C1-4, pp. 539–544, Yamaguchi, November 2013 (SIP 信号処理若手奨励賞).
    (Slide)

  7. Daichi Kitamura, Hiroshi Saruwatari, Kiyohiro Shikano, Kazunobu Kondo, and Yu Takahashi, "Study on optimal divergence for superresolution-based supervised nonnegative matrix factorization," IEICE technical Report, EA2013-14, vol. 113, no. 27, pp. 79–84, Okayama, May 2013.
    (CiNii, Slide)

  8. Daichi Kitamura, Hiroshi Saruwatari, Kiyohiro Shikano, Kazunobu Kondo, and Yu Takahashi, "Importance of regularization in superresolution-based multichannel signal separation with nonnegative matrix factorization," Proceedings of 99th IPSJ Special Interest Group on Music and Computer (IPSJ-SIGMUS), vol. 2013-MUS-99, no. 14, pp. 1–6, Tokyo, May 2013.
    (IPSJ, Poster)

  9. 北村大地, 猿渡洋, 鹿野清宏, 近藤多伸, 高橋祐, "基底変形型教師ありNMFによる実楽器信号分離," IEICE Technical Report, EA2012-121, vol. 112, no. 388, pp. 13–18, Kyoto, January 2013.
    (CiNii, Slide)

  10. 最上伸一, 三井祥幹, 高宗典玄, 北村大地, 猿渡洋, 高橋祐, 近藤多伸, "Iダイバージェンスを用いた独立低ランク行列分析," Proceedings of 32th Signal Processing Symposium (SIP Symposium), B8-1, pp. 354–359, Iwate, November 2017.
    (Paper)

  11. 三井祥幹, 高宗典玄, 北村大地, 猿渡洋, 高橋祐, 近藤多伸, "空間事前情報を用いた独立低ランク行列分析," Proceedings of 32th Signal Processing Symposium (SIP Symposium), B8-2, pp. 360–365, Iwate, November 2017.
    (Paper)

  12. 宇根昌和, 齋藤佑樹, 高道慎之介, 北村大地, 宮崎亮一, 猿渡洋, "雑音環境下音声を用いた音声合成のための雑音生成モデルの敵対的学習," IPSJ SIG Technical Report, 2017-SLP-118, no. 1, pp. 1–6, September, 2017.

  13. 最上伸一, 北村大地, 高宗典玄, 三井祥幹, 猿渡洋, 小野順貴, 高橋祐, 近藤多伸, "複素Student's t分布に基づく独立低ランク行列分析," IEICE Technical Report, EA2017-23, vol. 117, no. 138, pp. 131–136, Hokkaido, July 2017.

  14. 高宗典玄, 北村大地, 小野順貴, 猿渡洋, "新しい補助関数を用いたCauchy NMFの高速最適化," Proceedings of 115th IPSJ Special Interest Group on Music and Computer (IPSJ-SIGMUS), vol. 2017-MUS-115, no. 48, Tokyo, Jun 2017.

  15. 三井祥幹, 北村大地, 高道慎之介, 猿渡洋, "スパース時系列正則化付き独立低ランク行列分析における効率的な解法の検討," IEICE Technical Report, EA2016-72, vol. 116, no. 420, pp. 25–30, Kyoto, January 2017.

  16. 中嶋広明, 北村大地, 高宗典玄, 小山翔一, 猿渡洋, 小野順貴, 高橋祐, 近藤多伸, "全極モデルを用いた基底変形型教師ありNMFにおける変形自由度に関する研究," IEICE Technical Report, EA2015-42, vol. 115, no. 359, pp. 13–18, Kanazawa, December 2015.
    (CiNii, Poster)

  17. 室田勇騎, 北村大地, 小山翔一, 猿渡洋, 中村哲, "バイノーラル音源分離における時系列事前分布モデルとスペクトル基底の同時適応," IEICE Technical Report, EA2014-64, vol. 114, no. 423, pp. 27–32, Kyoto, January 2015.
    (CiNii)

  18. Yuki Murota, Daichi Kitamura, Shoichi Koyama, Hiroshi Saruwatari, Satoshi Nakamura, "Localization-preserved binaural source separation using channel-wise target prior estimation and equi-binaural spectral gain," Proceedings of 29th Signal Processing Symposium (SIP Symposium), P5-6, pp. 486–491, Kyoto, November 2014.
    (Paper)

  19. 宮内智, 北村大地, 猿渡洋, 中村哲, "アクティベーション共有型非負値行列因子分解を用いた混合音源中の音像深度推定," IEICE Technical Report, EA2013-117, vol. 113, no. 413, pp. 81–86, Osaka, January 2014.
    (CiNii)

  20. Yuki Murota, Daichi Kitamura, Shunsuke Nakai, Hiroshi Saruwatari, Satoshi Nakamura, Yu Takahashi, and Kazunobu Kondo, "Postfilter-based nonnegative matrix factorization with statistical model parameter estimation," IEICE Technical Report, EA2013-116, vol. 113, no. 413, pp. 75–80, Osaka, January 2014.
    (CiNii)

  21. 宮内智, 北村大地, 猿渡洋, 中村哲, "アクティベーション共有型非負値行列因子分解を用いた音像深度推定," 日本音響学会関西支部 若手研究者交流研究会 (若手の会), Osaka, November 2013 (支部局長特別賞受賞).
    (Poster)

 Patents
  1. 北村大地, 中嶋広明, 猿渡洋, 小野順貴, 高橋祐, 近藤多伸, "音信号処理方法および音信号処理装置," 特願2016-032489 (2016年2月23日出願).

  2. 北村大地, 猿渡洋, 高橋祐, "音響処理装置," 特願2013-094475 (2013年4月26日出願), 特開2014-215544 (2014年11月17日公開).
    (J-GLOBAL)

  3. 北村大地, 猿渡洋, 高橋祐, "音響解析装置," 特願2013-004375 (2013年1月15日出願), 特開2014-137389 (2014年7月28日公開).
    (J-GLOBAL)

 Miscellaneous Works
  1. Hiroshi Sawada, Nobutaka Ono, Hirokazu Kameoka, and Daichi Kitamura, "T-1 Blind audio source separation on tensor representation," 2018 IEEE International Conference on Acoustics, Speech and Signal Processing, April 16th, 2018.
    (HP)

  2. Daichi Kitamura, "Blind source separation based on independent low-rank matrix analysis and its extensions," Ohio State University, Invited Lecture, December 15th, 2017.
    (Slide)

  3. Daichi Kitamura, "Dataset: songKitamura," 音楽音源分離評価用データセット, October 13th, 2017.
    (Details)

  4. 北村大地, "音源分離における音響モデリング," 日本音響学会 サマーセミナー 招待講演, September 11th, 2017.
    (Slide)

  5. Daichi Kitamura, "Blind source separation based on independent low-rank matrix analysis and its extension to Student's t-distribution," Télécom ParisTech, Invited Lecture, September 4th, 2017.
    (Slide)

  6. 北村大地, "Q. エレキギターの音色がピックアップによって変わるのはなぜでしょうか。," 日本音響学会誌 コーヒーブレイク Q&Aコーナー, vol. 73, no. 9, September, 2017.

  7. Daichi Kitamura, "AASP-L3: Deep Learning for Source(北村担当分)," ICASSP読み会(関東編), Jun 24th, 2017.
    (Slide)

  8. Daichi Kitamura, "Audio source separation based on low-rank structure and statistical independence," Nagoya University, Invited Lecture, May 30th, 2017.
    (Slide)

  9. Daichi Kitamura, "Effective optimization algorithms for blind and supervised music source separation with nonnegative matrix factorization," SOKENDAI (The Graduate University for Advanced Studies), Doctoral Dissertation, March, 2017 (SOKENDAI Nagakura Research Incentive Award).
    (PDF)

  10. 北村大地, "独立性に基づくブラインド音源分離の発展と独立低ランク行列分析," 東京大学システム情報談話会, 招待講演, Tokyo, February 27th, 2017.
    (Slide)

  11. 北村大地, "統計的独立性と低ランク行列分解理論に基づくブラインド音源分離 –独立低ランク行列分析–," 筑波大学システム情報工学研究科マルチメディア研究室, 招待講演, Ibaraki, September 26th, 2016.
    (Slide)

  12. Daichi Kitamura, "Algorithms for independent low-rank matrix analysis," Supporting document, August, 2016 (PDF).

  13. Daichi Kitamura, "Blind music separation based on independent low-rank matrix analysis," Speech PhD Summit 2016, Google Inc., Invited Talk, London, UK, Jun 15th, 2016.

  14. 北村大地, 小野順貴, "混ざった音を分ける技術!音楽からボーカルだけ, ギターだけを聴くには?音源分離技術のメカニズムとその実力とは," 平成28年度 国立情報学研究所(NII) オープンハウス, no. E02, Tokyo, May, 2016.

  15. 北村大地, "音響メディア信号処理における独立成分分析の発展と応用," 一橋大学大学院国際企業戦略研究科金融戦略・経営財務コース ファカルティセミナー, 招待講演, Tokyo, February 8th, 2016.
    (HP, Slide)

  16. 北村大地, "音楽を対象とした音響メディア信号処理," 第7回北陸合同音響セミナービギナー成果発表会, 招待講演, Ishikawa, December 13th, 2015.
    (HP)

  17. 北村大地, "非負値行列分解の確率的生成モデルと多チャネル音源分離への応用," 慶應義塾大学理工学部電子工学科湯川研究室 招待講演, Kanagawa, November 24th, 2015.
    (Slide)

  18. 北村大地, 小野順貴, 澤田宏, 亀岡弘和, 猿渡洋, "混ざった音を分ける技術!音楽からボーカルだけ, ギターだけを聴くには?非負値行列因子分解を用いた音楽信号分離," 平成27年度 国立情報学研究所(NII) オープンハウス, no. E02, Tokyo, June, 2015.
    (Poster)

  19. Daichi Kitamura, "Music signal separation combining directional clustering and nonnegative matrix factorization with spectrogram restoration," Nara Institute of Science and Technology, Master Thesis, March, 2014.
    (PDF)



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