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. Daichi Kitamura, "Q11 What is beamforming?," Acousticpedia for Beginners, Acoustical Society of Japan, Eds. Corona Publishing, pp. 44–47, March 2017 (in Japanese).


 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. ??, no. ?, pp. ???–???, March, 2018 (accepted).

  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. 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. ???–???, Calgary, Canada, April, 2018 (accepted).
    (Preprint PDF)

  14. 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. ???–???, Calgary, Canada, April, 2018 (accepted).

  15. Narumi Mae, Koei Yamaoka, Yoshiki Mitsui, Mitsuo Matsumoto, Shoji Makino, Daichi Kitamura, Nobutaka Ono, Takeshi Yamda, 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.

  16. 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).

  17. 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.

  18. 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.

  19. 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.

  20. 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).

  21. 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)

  22. 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)

  23. 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)

  24. 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)

  25. 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)

  26. 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)

  27. 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)

  28. 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)

  29. 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)

  30. 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. Daichi Kitamura, Norihiro Takamune, Shinichi Mogami, Yoshiki Mitsui, Hiroshi Saruwatari, Yu Takahashi, and Kazunobu Kondo, "Sparse noise reduction using nonnegative matrix factorization based on heavy-tailed distributions," Proceedings of 2018 Spring Meeting of Acoustical Society of Japan, 1-4-14, pp. 441–444, Saitama, March 2018 (in Japanese).
    (Slide)

  2. Daichi Kitamura and Nobutaka Ono, "Statistical-independence-based effective initialization for nonnegative matrix factorization," Proceedings of 2016 Spring Meeting of Acoustical Society of Japan, 3-3-5, pp. 619–622, Kanagawa, March 2016 (in Japanese).
    (J-GLOBAL, PDF, Slide)

  3. Daichi Kitamura, Hiroshi Saruwatari, Nobutaka Ono, Hiroshi Sawada, and Hirokazu Kameoka, "Study on source and spatial models for BSS with rank-1 spatial approximation," Proceedings of 2015 Autumn Meeting of Acoustical Society of Japan, 3-6-10, pp. 583–586, Fukushima, September 2015 (in Japanese).
    (J-GLOBAL, PDF, Slide)

  4. Daichi Kitamura, Nobutaka Ono, Hiroshi Sawada, Hirokazu Kameoka, and Hiroshi Saruwatari, "Relaxation of rank-1 spatial model in overdetermined BSS," Proceedings of 2015 Spring Meeting of Acoustical Society of Japan, 3-10-11, pp. 629–632, Tokyo, March 2015 (in Japanese).
    (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 Awaya Prize Young Researcher Award).
    (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 Student Presentation Award).
    (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. Daichi Kitamura and Masahiro Harazono, "String vibration response of improvised hum-backing pickup," Proceedings of the IEICE General Conference, vol. 2011, A-10-6, p. 170, Tokyo, March 2011 (in Japanese).
    (CiNii, Slide)

  10. Daichi Kitamura and Masahiro Harazono, "String vibration response of pseudo hum-backing pickup," Proceedings of the 2010 IEICE Shikoku Section Convention Record, vol. 2010, 16-13, Ehime, September 2010 (in Japanese).
    (J-GLOBAL, Slide)

  11. Daichi Kitamura and Masahiro Harazono, "Simulation of electric guitar response," Proceedings of the 2010 IEICE Shikoku Section Convention Record, vol. 2009, 16-5, Ehime, September 2009 (in Japanese, IEICE Shikoku Section Convention Encouragement Award).
    (J-GLOBAL, Slide)

  12. Hayato Sumino, Daichi Kitamura, Norihiro Takamune, Shinnosuke Takamichi, Hiroshi Saruwatari, and Nobutaka Ono, "Multichannel audio source separation based on independent deeply learned matrix analysis," Proceedings of 2018 Spring Meeting of Acoustical Society of Japan, 1-4-16, pp. 449–452, Saitama, March 2018 (in Japanese).

  13. Yoshiki Mitsui, Norihiro Takamune, Daichi Kitamura, Hiroshi Saruwatari, Yu Takahashi, Kazunobu Kondo, and Hiroaki Nakajima, "Blind source separation based on independent low-rank matrix analysis with spatial-model-based regularization," Proceedings of 2018 Spring Meeting of Acoustical Society of Japan, 1-4-15, pp. 445–448, Saitama, March 2018 (in Japanese).

  14. Kohei Yatabe and Daichi Kitamura, "Blind source separation via proximal splitting algorithm," Proceedings of 2018 Spring Meeting of Acoustical Society of Japan, 1-4-10, pp. 431–434, Saitama, March 2018 (in Japanese).
    (Slide)

  15. Shinichi Mogami, Yoshiki Mitsui, Norihiro Takamune, Daichi Kitamura, Hiroshi Saruwatari, Yu Takahashi, Kazunobu Kondo, Hiroaki Nakajima, and Hirokazu Kameoka, "Experimental evaluation of independent low-rank matrix analysis based on I divergence," Proceedings of 2018 Spring Meeting of Acoustical Society of Japan, 1-4-8, pp. 423–426, Saitama, March 2018 (in Japanese).

  16. Masakazu Une, Yuki Saito, Shinnosuke Takamichi, Daichi Kitamura, Ryoichi Miyazaki, and Hiroshi Saruwatari, "Generative approach using the noise generation models for DNN-based speech synthesis trained from noisy speech," Proceedings of 2018 Spring Meeting of Acoustical Society of Japan, 3-8-8, pp. 243–244, Saitama, March 2018.

  17. Yoshiki Mitsui, Daichi Kitamura, Norihiro Takamune, Hiroshi Saruwatari, Yu Takahashi, and Kazunobu Kondo, "Blind source separation based on independent low-rank matrix analysis with parametric auxiliary function method," Proceedings of 2017 Autumn Meeting of Acoustical Society of Japan, 3-12-13, pp. 519–522, Ehime, September 2017 (in Japanese).

  18. Shinichi Mogami, Daichi Kitamura, Norihiro Takamune, Yoshiki Mitsui, Hiroshi Saruwatari, Nobutaka Ono, Yu Takahashi, and Kazunobu Kondo, "Experimental evaluation of independent low-tank matrix analysis based on complex Student's t-distribution," Proceedings of 2017 Autumn Meeting of Acoustical Society of Japan, 3-12-12, pp. 515–518, Ehime, September 2017 (in Japanese).

  19. Yoshiki Mitsui, Satoshi Mizoguchi, Hiroshi Saruwatari, Daichi Kitamura, Nobutaka Ono, Masaru Ishimura, Narumi Mae, Moe Takakusaki, Yutaro Matsui, Kouei Yamaoka, and Shoji Makino, "Development of high quality blind source separation based on independent low-rank matrix analysis and statistical speech enhancement for flexible hose-shaped robot," Proceedings of The 2016 JSME Conference on Robotics and Mechatronics (ROBOMECH 2017), no. 17-2, 1P2-P04, Fukushima, May 2017 (in Japanese).

  20. Yoshiki Mitsui, Satoshi Mizoguchi, Hiroshi Saruwatari, Daichi Kitamura, Nobutaka Ono, Masaru Ishimura, Narumi Mae, Moe Takakusaki, Yutaro Matsui, Kouei Yamaoka, and Shoji Makino, "Development of blind source separation system for flexible hose-shaped robot using independent low-rank matrix analysis and statistical speech enhancement," Proceedings of 2017 Spring Meeting of Acoustical Society of Japan, 1-P-3, pp. 517–518, Kanagawa, March 2017 (in Japanese).

  21. Yoshiki Mitsui, Daichi Kitamura, Shinnosuke Takamichi, and Hiroshi Saruwatari, "Blind source separation using independent low-rank matrix analysis with sparse regularization for time-series activations," Proceedings of 2016 Autumn Meeting of Acoustical Society of Japan, 1-7-3, pp. 325–328, Toyama, September 2016 (in Japanese).
    (J-GLOBAL, PDF)

  22. Moe Takakusaki, Daichi Kitamura, Nobutaka Ono, Takeshi Yamada, Shoji Makino, and Hiroshi Saruwatari, "Noise reduction for a hose-shaped rescue robot using rank-1 multichannel NMF," Proceedings of The 2016 JSME Conference on Robotics and Mechatronics (ROBOMECH 2016), no. 16-2, 1A2-10a3, Kanagawa, June 2016 (in Japanese).

  23. Moe Takakusaki, Daichi Kitamura, Nobutaka Ono, Takeshi Yamada, Shoji Makino, and Hiroshi Saruwatari, "Noise reduction using rank-1 multichannel NMF for a hose-shaped rescue robot," Proceedings of 2016 IEICE General Conference, A-5-1, Fukuoka, March 2016 (in Japanese).
    (CiNii)

  24. Kazuma Takata, Daichi Kitamura, Hiroaki Nakajima, Shoichi Koyama, Hiroshi Saruwatari, Nobutaka Ono, and Shoji Makino, "Source separation with supervised multichannel NMF and statistical speech enhancement method for hose-shaped rescue robot," Proceedings of 2016 Spring Meeting of Acoustical Society of Japan, 3-3-2, pp. 609–612, Kanagawa, March 2016 (in Japanese).
    (J-GLOBAL, PDF)

  25. Hiroaki Nakajima, Daichi Kitamura, Norihiro Takamune, Shoichi Koyama, Hiroshi Saruwatari, Nobutaka Ono, Yu Takahashi, and Kazunobu Kondo, "Music signal separation using supervised NMF with time-valiant all-pole-model-based basis deformation," Proceedings of 2016 Spring Meeting of Acoustical Society of Japan, 3-3-11, pp. 635–638, Kanagawa, March 2016 (in Japanese).
    (J-GLOBAL, PDF)

  26. 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 basis deformation," Proceedings of 2015 Autumn Meeting of Acoustical Society of Japan, 3-6-7, pp. 573–576, Fukushima, September 2015 (in Japanese, ASJ Student Presentation Award).
    (J-GLOBAL, PDF)

  27. Yuki Murota, Daichi Kitamura, Shoichi Koyama, Hiroshi Saruwatari, and Satoshi Nakamura, "Experimental evaluation of simultaneous adaption method of time-series a priori statistical model and spectral basis for binaural source separation," Proceedings of 2015 Spring Meeting of Acoustical Society of Japan, 1-10-12, pp. 549–552, Tokyo, March 2015 (in Japanese).
    (J-GLOBAL, PDF)

  28. Yuki Murota, Daichi Kitamura, Shoichi Koyama, Hiroshi Saruwatari, and Satoshi Nakamura, "Study on a priori statistical model of target signal for binaural signal source separation," Proceedings of 2014 Autumn Meeting of Acoustical Society of Japan, 1-1-3, pp. 595–598, Hokkaido, September 2014 (in Japanese, ASJ Student Presentation Award).
    (J-GLOBAL, PDF)

  29. Tomo Miyauchi, Daichi Kitamura, Hiroshi Saruwatari, and Satoshi Nakamura, "Depth estimation of sound images using direction of arrival distribution and activation-shared nonnegative matrix factorization," Proceedings of 2014 Spring Meeting of Acoustical Society of Japan, 1-1-5, pp. 947–950, Tokyo, March 2014 (ASJ Student Presentation Award).
    (J-GLOBAL, PDF)

  30. Yuki Murota, Daichi Kitamura, Shunsuke Nakai, Hiroshi Saruwatari, Satoshi Nakamura, Yu Takahashi, and Kazunobu Kondo, "Experimental evaluation of postfilter-based nonnegative matrix factorization with statistical model parameter estimation," Proceedings of 2014 Spring Meeting of Acoustical Society of Japan, 2-1-5, pp. 677–680, Tokyo, March 2014.
    (J-GLOBAL, PDF)

  31. Tomo Miyauchi, Daichi Kitamura, Hiroshi Saruwatari, and Satoshi Nakamura, "Automatic depth estimation of sound images using directional clustering and nonnegative matrix factorization," Proceedings of 2013 Autumn Meeting of Acoustical Society of Japan, 2-1-19, pp. 673–676, Aichi, September 2013 (in Japanese).
    (J-GLOBAL, PDF, Slide)


 Technical Reports
  1. Daichi Kitamura, Hayato Sumino, Norihiro Takamune, Shinnosuke Takamichi, Hiroshi Saruwatari, and Nobutaka Ono, "Experimental evaluation of multichannel audio source separation based on IDLMA," IEICE Technical Report, EA2017-104, vol. 117, no. 515, pp. 13–20, Okinawa, March 2018 (in Japanese).
    (PDF, IEICE Transactions Online, Copyright (c) 2017 IEICE, Slide)

  2. Daichi Kitamura, Nobutaka Ono, Hiroshi Sawada, Hirokazu Kameoka, and Hiroshi Saruwatari, "Blind source separation based on independent low-rank matrix analysis," IEICE Technical Report, EA2017-56, vol. 117, no. 255, pp. 73–80, Toyama, October 2017 (in Japanese, Invited talk).
    (PDF, IEICE Transactions Online, Copyright (c) 2017 IEICE, Slide)

  3. Daichi Kitamura, Nobutaka Ono, Hiroshi Saruwatari, Yu Takahashi, and Kazunobu Kondo, "Effective basis learning for sound source separation by semi-supervised nonnegative matrix factorization," IEICE Technical Report, EA2015-130, vol. 115, no. 521, pp. 355–360, Oita, March 2016 (in Japanese).
    (CiNii, Slide)

  4. Daichi Kitamura, Nobutaka Ono, Hiroshi Sawada, Hirokazu Kameoka, and Hiroshi Saruwatari, "Performance evaluation of source separation in multichannel nonnegative matrix factorization with rank-1 spatial model," Proceedings of 107th IPSJ Special Interest Group on Music and Computer (IPSJ-SIGMUS), vol. 2015-MUS-107, no. 31, Tokyo, May 2015 (in Japanese).
    (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 Young Researcher's Award).
    (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 (in Japanese).
    (IPSJ, Poster)

  9. Daichi Kitamura, Hiroshi Saruwatari, Kiyohiro Shikano, Kazunobu Kondo, and Yu Takahashi, "Signal Separation for real instruments based on supervised NMF with basis deformation," IEICE Technical Report, EA2012-121, vol. 112, no. 388, pp. 13–18, Kyoto, January 2013 (in Japanese).
    (CiNii, Slide)

  10. Shinichi Mogami, Yoshiki Mitsui, Norihiro Takamune, Daichi Kitamura, Hiroshi Saruwatari, Yu Takahashi, and Kazunobu Kondo, "ILRMA using I divergence criterion," Proceedings of 32th Signal Processing Symposium (SIP Symposium), B8-1, pp. 354–359, Iwate, November 2017 (in Japanese).
    (Paper)

  11. Yoshiki Mitsui, Norihiro Takamune, Daichi Kitamura, Hiroshi Saruwatari, Yu Takahashi, and Kazunobu Kondo, "ILRMA incorporating with a priori spatial information," Proceedings of 32th Signal Processing Symposium (SIP Symposium), B8-2, pp. 360–365, Iwate, November 2017 (in Japanese).
    (Paper)

  12. Masakazu Une, Yuki Saito, Shinnosuke Takamichi, Daichi Kitamura, Ryoichi Miyazaki, and Hiroshi Saruwatari, "Generative adversarial training of the noise generation model for speech synthesis using speech in noise," IPSJ SIG Technical Report, 2017-SLP-118, no. 1, pp. 1–6, September, 2017 (in Japanese).

  13. Shinichi Mogami, Daichi Kitamura, Norihiro Takamune, Yoshiki Mitsui, Hiroshi Saruwatari, Nobutaka Ono, Yu Takahashi, and Kazunobu Kondo, "ILRMA with complex Student's t source model," IEICE Technical Report, EA2017-23, vol. 117, no. 138, pp. 131–136, Hokkaido, July 2017 (in Japanese).

  14. Norihiro Takamune, Daichi Kitamura, Nobutaka Ono, and Hiroshi Saruwatari, "Fast optimization in Cauchy NMF Based on a new auxiliary function," Proceedings of 115th IPSJ Special Interest Group on Music and Computer (IPSJ-SIGMUS), vol. 2017-MUS-115, no. 48, Tokyo, Jun 2017 (in Japanese).

  15. Yoshiki Mitsui, Daichi Kitamura, Shinnosuke Takamichi, Nobutaka Ono, and Hiroshi Saruwatari, "Study on efficient solver for independent low-rank matrix analysis with sparse time-series-activity regularization," IEICE Technical Report, EA2016-72, vol. 116, no. 420, pp. 25--30, Kyoto, January 2017 (in Japanese).

  16. Hiroaki Nakajima, Daichi Kitamura, Norihiro Takamune, Shoichi Koyama, Hiroshi Saruwatari, Nobutaka Ono, Yu Takahashi, and Kazunobu Kondo, "Analysis on degree of freedom for supervised NMF with all-pole-model-based basis deformation," IEICE Technical Report, EA2015-42, vol. 115, no. 359, pp. 13–18, Kanazawa, December 2015 (in Japanese).
    (CiNii, Poster)

  17. Yuki Murota, Daichi Kitamura, Shoichi Koyama, Hiroshi Saruwatari, and Satoshi Nakamura, "Simultaneous adaptation of time-series a priori statistical model and spectral basis for binaural source separation," IEICE Technical Report, EA2014-64, vol. 114, no. 423, pp. 27–32, Kyoto, January 2015 (in Japanese).
    (CiNii)

  18. Yuki Murota, Daichi Kitamura, Shoichi Koyama, Hiroshi Saruwatari, and 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. Tomo Miyauchi, Daichi Kitamura, Hiroshi Saruwatari, and Satoshi Nakamura, "Depth estimation of sound images in mixed source using activation-shared nonnegative matrix factorization," IEICE Technical Report, EA2013-117, vol. 113, no. 413, pp. 81–86, Osaka, January 2014 (in Japanese).
    (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)


 Patents
  1. Daichi Kitamura, Hiroaki Nakajima, Hiroshi Saruwatari, Nobutaka Ono, Yu Takahashi, Kazunobu Kondo, "音信号処理方法および音信号処理装置," Japanese Unexamined Patent, Application No. 2016-032489 (submitted on February 23rd, 2016).

  2. Daichi Kitamura, Hiroshi Saruwatari, and Yu Takahashi, "音響処理装置," Japanese Unexamined Patent, Application No. 2013-094475 (submitted on April 26th, 2013), and Publication No. 2014-215544 (published on November 17th, 2014).
    (J-GLOBAL)

  3. Daichi Kitamura, Hiroshi Saruwatari, and Yu Takahashi, "音響解析装置," Japanese Unexamined Patent, Application No. 2013-004375 (submitted on January 15th, 2013), and Publication No. 2014-137389 (published on July 28th, 2014).
    (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," Dataset for Evaluation of Music Source Separation, October 13th, 2017.
    (Details)

  4. Daichi Kitamura, "Acoustic modeling in audio source separation," The Acoustical Society of Japan, Summer Seminar, Invited Talk, 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. Daichi Kitamura, "Q. Why does a pickup affect on the tone of electric guitars?," The Journal of the Acoustical Society of Japan (ASJ), Coffee Break, Q&A Corner, vol. 73, no. 9, September, 2017 (in Japanese).

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

  8. 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)

  9. Daichi Kitamura, "History of independence-based blind source separation and independent low-rank matrix analysis," The University of Tokyo, Department of Information Physics and Computing, Invited Talk, Tokyo, February 27th, 2017.
    (Slide)

  10. Daichi Kitamura, "Blind source separation based on statistical independence and low-rank matrix decomposition –Independent low-rank matrix analysis–," University of Tsukuba, Graduate School of Systems and Information Engineering, Multimedia Laboratory, Invited Talk, Ibaraki, September 26th, 2016.
    (Slide)

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

  12. 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.

  13. Daichi Kitamura and Nobutaka Ono, "How can we listen only vocal or guitar sound from music? Mechanism in source separation and its capability," 2016 National Institute of Informatics (NII) Open House, no. E02, Tokyo, May, 2016.

  14. Daichi Kitamura, "History of independent component analysis for sound media signal processing and its applications," Hitotsubashi University, Graduate School of International Corporate Strategy, MBA Program in Financial Strategy, Faculty Seminar, Invited Talk, Tokyo, February 8th, 2016.
    (HP, Slide)

  15. Daichi Kitamura, "Sound media signal processing for music," 7th Hokuriku Union Acoustic Seminar, Beginner's Meeting, Invited Talk, Ishikawa, December 13th, 2015.
    (HP)

  16. Daichi Kitamura, "Generative model in nonnegative matrix factorization and its application to multichannel sound source separation," Keio University, Science and Technology, Department of Electronics and Electrical Engineeing, Yukawa Laboratory, Invited Talk, Kanagawa, November 24th, 2015.
    (Slide)

  17. Daichi Kitamura, Nobutaka Ono, Hiroshi Sawada, Hirokazu Kameoka, and Hiroshi Saruwatari, "How can we listen only vocal or guitar sound from music? Music source separation using nonnegative matrix factorization," 2015 National Institute of Informatics (NII) Open House, no. E02, Tokyo, June, 2015.
    (Poster)

  18. 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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