- S. Makino, Te-Won Lee, and
**H. Sawada**, Blind Speech Separation, Springer, Sep. 2007.

**H. Sawada**, Z. Koldovsky, "Independent Component and Vector Analysis," in Audio Source Separation and Speech Enhancement, E. Vincent, T. Virtanen, and S. Gannot, Eds, Wiley, pp. 263-288, Jul. 2018.- H. Kameoka,
**H. Sawada**, T. Higuchi, "General Formulation of Multichannel Extensions of NMF Variants," in Audio Source Separation, S. Makino, Ed, Springer, pp. 95-124, 2018. - D. Kitamura, N. Ono,
**H. Sawada**, H. Kameoka, H. Saruwatari, "Determined Blind Source Separation with Independent Low-Rank Matrix Analysis," in Audio Source Separation, S. Makino, Ed, Springer, pp. 125-155, 2018. **H. Sawada**, S. Araki, S. Makino, "Frequency-Domain Blind Source Separation," in Blind Speech Separation, S. Makino, Te-Won Lee, and H. Sawada, Eds, Springer, pp. 47-78, Sep. 2007.**H. Sawada**, R. Mukai, S. Araki, S. Makino, "Frequency-domain blind source separation," in Speech Enhancement, J. Benesty, S. Makino, J. Chen, Eds., Springer, pp. 299-327, Mar. 2005.

- N. Ito and
**H. Sawada**, "A Unified Framework for Underdetermined and Determined Blind Audio Source Separation," EUSIPCO 2020, Online, Jan. 2021. **H. Sawada**, N. Ono, H. Kameoka, D. Kitamura, "Blind Audio Source Separation on Tensor Representation," ICASSP 2018, Calgary, April 2018. (Slide: PDF)- S. Makino,
**H. Sawada**, "Blind Speech Separation based on Independent Component Analysis and Sparse Component Analysis," Interspeech 2011, Florence, Aug. 2011. (Slide: PDF) - S. Makino,
**H. Sawada**, "Audio Source Separation based on Independent Component Analysis," IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2007), April 2007. (Handout: PDF)

**H. Sawada**, R. Ikeshita, K. Kinoshita, T. Nakatani, "Multi-frame Full-rank Spatial Covariance Analysis for Underdetermined Blind Source Separation and Dereverberation," IEEE/ACM Trans. Audio, Speech, and Language Processing, vol. 31, pp. 3589-3602, 2023, doi: 10.1109/TASLP.2023.3313446. (Paper: PDF, Sample code: https://github.com/nttcslab-sp/mfFCA)- Y.K. Wakabayashi, T. Otsuka, Y. Krockenberger,
**H. Sawada**, Y. Taniyasu, H. Yamamoto, "Stoichiometric growth of SrTiO3 films via Bayesian optimization with adaptive prior mean," APL Machine Learning, vol.1, no.2, 2023. (Paper: Open Access) - K. Niwa, N. Ueda,
**H. Sawada**, A. Fujino, S. Takeda, G. Zhang, W. B. Kleijn, "CoordiNet: Constrained Dynamics Learning for State Coordination Over Graph," IEEE Trans. Signal and Information Processing over Networks, vol.9, pp.242-257, 2023. - Y.K. Wakabayashi, T. Otsuka, Y. Krockenberger,
**H. Sawada**, Y. Taniyasu, H. Yamamoto, "Bayesian optimization with experimental failure for high-throughput materials growth," npj Computational Materials, vol.8, no.1, 2022. (Paper: Open Access) - T. Nakatani, R. Ikeshita, K. Kinoshita,
**H. Sawada**, N. Kamo, S. Araki, "Switching independent vector analysis and its extension to blind and spatially guided convolutional beamforming algorithms," IEEE/ACM Trans. Audio, Speech, and Language Processing, vol.30, pp.1032-1047, 2022. - N. Ito, R. Ikeshita,
**H. Sawada**, T. Nakatani, "A joint diagonalization based efficient approach to underdetermined blind audio source separation using the multichannel Wiener filter," IEEE/ACM Trans. Audio, Speech, and Language Processing, vol.29, pp.1950-1965, 2021. - K. Takiguchi, Y.K. Wakabayashi, H. Irie, Y. Krockenberger, T. Otsuka,
**H. Sawada**, S.A. Nikolaev, H. Das, M. Tanaka, Y. Taniyasu, H. Yamamoto, "Quantum transport evidence of Weyl fermions in an epitaxial ferromagnetic oxide," Nature communications, vol.11, no.1, 2020. (Paper: Open Access) - Y.K. Wakabayashi, T. Otsuka, Y. Krockenberger,
**H. Sawada**, Y. Taniyasu, H. Yamamoto, "Machine-learning-assisted thin-film growth: Bayesian optimization in molecular beam epitaxy of SrRuO3 thin films," APL Materials, vol.7, no.10, 2019. (Paper: Open Access) **H. Sawada**, N. Ono, H. Kameoka, D. Kitamura and H. Saruwatari, "A review of blind source separation methods: two converging routes to ILRMA originating from ICA and NMF," APSIPA Transactions on Signal and Information Processing, vol. 8, May 2019. (Paper: Open Access)- M. Kohjima, T. Matsubayashi and
**H. Sawada**, "Learning of Nonnegative Matrix Factorization Models for Inconsistent Resolution Dataset Analysis," IEICE Transactions on Information and Systems, vol. 102, no. 4, Apr. 2019. (Paper: Open Access) - A. Rolet, V. Seguy, M. Blondel and
**H. Sawada**, "Blind source separation with optimal transport non-negative matrix factorization," EURASIP Journal on Advances in Signal Processing, vol. 2018, no. 53, Sep. 2018. (Paper: Open Access) - D. Kitamura, N. Ono,
**H. Sawada**, H. Kameoka, and H. Saruwatari, "Determined blind source separation unifying independent vector analysis and nonnegative matrix factorization," IEEE/ACM Trans. Speech, Audio, and Language Processing, vol.24, no. 9, pp. 1626-1641, Sep. 2016. - T. Otsuka, K. Ishiguro, T. Yoshioka,
**H. Sawada**, and H.G. Okuno, "Multichannel sound source dereverberation and separation for arbitrary number of sources based on bayesian nonparametrics," IEEE/ACM Trans. Audio, Speech, and Language Processing, vol.22, no.12, pp.2218-2232, Dec. 2014. - T. Otsuka, K. Ishiguro,
**H. Sawada**, and H.G. Okuno, "Bayesian nonparametrics for microphone array processing," IEEE/ACM Trans. Audio, Speech, and Language Processing, vol.22, no. 2, pp.493-504, 2014. - M. Souden, S. Araki, K. Kinoshita, T. Nakatani, and
**H. Sawada**, "A multichannel MMSE-based framework for speech source separation and noise reduction," IEEE Trans. Audio, Speech, and Language Processing, vol.21, no.9, pp.1913-1928, 2013. **H. Sawada**, H. Kameoka, S. Araki, N. Ueda, "Multichannel Extensions of Non-negative Matrix Factorization with Complex-valued Data," IEEE Trans. Audio, Speech, and Language Processing, vol.21, no.5, pp.971-982, May 2013. (Paper: PDF)**H. Sawada**, S. Araki, S. Makino, "Underdetermined Convolutive Blind Source Separation via Frequency Bin-Wise Clustering and Permutation Alignment," IEEE Trans. Audio, Speech, and Language Processing, vol.19, no.3, pp.516-527, March 2011. (Paper: PDF)**H. Sawada**, S. Araki, R. Mukai, S. Makino, "Grouping Separated Frequency Components with Estimating Propagation Model Parameters in Frequency-Domain Blind Source Separation," IEEE Trans. Audio, Speech, and Language Processing, vol.15, no.5, pp.1592-1604, July 2007. (Paper: PDF)- S.C. Douglas, M. Gupta,
**H. Sawada**, S. Makino, "Spatio-Temporal FastICA Algorithm for the Blind Separation of Convolutive Mixtures," IEEE Trans. Audio, Speech, and Language Processing, vol.15, no.5, pp.1511-1620, July 2007. - S. Winter, W. Kellermann,
**H. Sawada**, S. Makino, "MAP-Based Underdetermined Blind Source Separation of Convolutive Mixtures by Hierarchical Clustering and l1-Norm Minimization," EURASIP Journal on Advances in Signal Processing, vol.2007, Article ID 24717, 12 pages, 2007. (Paper: PDF) **H. Sawada**, S. Araki, R. Mukai, S. Makino, "Blind Extraction of Dominant Target Sources Using ICA and Time-Frequency Masking," IEEE Trans. Audio, Speech, and Language Processing, vol.14, no.6, pp.2165-2173, Nov. 2006 (Paper: PDF)- S. Winter,
**H. Sawada**, S. Makino, "Geometrical Interpretation of the PCA Subspace Approach for Overdetermined Blind Source Separation," EURASIP Journal on Applied Signal Processing, vol.2006, Article ID 71632, 11 pages, 2006. (Paper: PDF) **H. Sawada**, R. Mukai, S. Araki, S. Makino, "Estimating the Number of Sources using Independent Component Analysis," Acoustical Science and Technology, the Acoustical Society of Japan, vol.26, no.5, Sep. 2005.- S. C. Douglas,
**H. Sawada**, S. Makino, "Natural Gradient Multichannel Blind Deconvolution and Speech Separation Using Causal FIR Filters," IEEE Trans. Speech and Audio Processing, vol.13, no. 1, pp. 92-104, Jan. 2005. **H. Sawada**, R. Mukai, S. Araki, S. Makino, "A Robust and Precise Method for Solving the Permutation Problem of Frequency-Domain Blind Source Separation," IEEE Trans. Speech and Audio Processing, vol.12, no. 5, pp. 530-538, Sep. 2004. (Paper: PDF, Errata)**H. Sawada**, R. Mukai, S. Araki, S. Makino, "Convolutive Blind Source Separation for more than Two Sources in the Frequency Domain," Acoustical Science and Technology, the Acoustical Society of Japan, vol.25, no.4, July 2004.**H. Sawada**, R. Mukai, S. Araki, S. Makino, "Polar Coordinate based Nonlinear Function for Frequency Domain Blind Source Separation," IEICE Trans. Fundamentals, vol.E86-A, no.3, pp. 590-596, March 2003. (Paper: PDF)- S. Yamashita,
**H. Sawada**and A. Nagoya, "A General Framework to Use Various Decomposition Methods for LUT Network Synthesis," IEICE Trans. Fundamentals, Vol. E84-A, No. 11, pp. 2915-2922, Nov. 2001. - S. Yamashita,
**H. Sawada**and A. Nagoya, "A new notion for functional flexibility: a summary," IEEE Circuits and Systems Magazine, Vol. 2, No. 2, pp. 52-54, 2002. - T. Suyama, M. Yokoo,
**H. Sawada**and A. Nagoya, "Solving satisfiability problems using reconfigurable computing," IEEE Trans. Very Large Scale Integration (VLSI) Systems, Vol. 9, No. 1, pp. 109-116, Feb. 2001. **H. Sawada**, S. Yamashita and A. Nagoya, "Efficient Kernel Generation based on Implicit Cube Set Representations and Its Applications," IEICE Trans. Fundamentals, Vol. E83-A, No. 12, pp. 2513-2519, Dec. 2000.- S. Yamashita,
**H. Sawada**and A. Nagoya, "SPFD: A new method to express functional flexibility," IEEE Trans. Computer-Aided Design of Integrated Circuits and Systems, Vol. 19, No. 8, pp. 840-849, Aug. 2000. **H. Sawada**, S. Yamashita and A. Nagoya, "Restructuring Logic Representations with Simple Disjunctive Decompositions," IEICE Trans. Fundamentals, Vol. E81-A, No. 12, pp. 2538-2544, Dec. 1998.- S. Yamashita,
**H. Sawada**and A. Nagoya, "An Efficient Method for Finding an Optimal Bi-Decomposition," IEICE Trans. Fundamentals, Vol. E81-A, No. 12, pp. 2529-2537, Dec. 1998. **H. Sawada**, T. Suyama and A. Nagoya, "Logic Synthesis for Look-Up Table based FPGAs using Functional Decomposition and Boolean Resubstitution," IEICE Trans. Information and Systems, Vol. E80-D, No. 10, pp. 1017-1023, Oct. 1997.**H. Sawada**, Y. Takenaga and S. Yajima, "On the Computational Power of Binary Decision Diagrams," IEICE Trans. Information and Systems, Vol. E77-D, No. 6, pp. 611-618, Jun. 1994.

**H. Sawada**, R. Ikeshita, K. Kinoshita, T. Nakatani, "Multi-frame full-rank spatial covariance analysis for underdetermined bss in reverberant environments," IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2022) May, 2022.- K. Aoyama,
**H. Sawada**, "Acceleration method for learning fine-layered optical neural networks," IEEE/ACM International Conference On Computer Aided Design (ICCAD 2021), pp.1-9, Nov. 2021 - K. Niwa, G. Zhang, W.B. Kleijn, N. Harada,
**H. Sawada**, A. Fujino, "Asynchronous decentralized optimization with implicit stochastic variance reduction," International Conference on Machine Learning (ICML 2021), pp.8195-8204, Jul., 2021 **H. Sawada**, K. Aoyama, "Computational Acceleration and Smart Initialization of Full-rank Spatial Covariance Analysis," European Signal Processing Conference (EUSIPCO 2019), Sep., 2019.**H. Sawada**, "Similarity Search-based Blind Source Separation," IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2019), pp. 7888-7892, May, 2019.**H. Sawada**, "Blind signal separation by synchronized joint diagonalization," International Conference on Latent Variable Analysis and Signal Separation (LVA/ICA 2018), pp. 217-227, Jul., 2018.**H. Sawada**, H. Kameoka, S. Araki, N. Ueda, "Efficient Algorithms for Multichannel Extensions of Itakura-Saito Nonnegative Matrix Factorization," IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2012), pp. 261-264, Mar., 2012. (Paper: PDF)**H. Sawada**, H. Kameoka, S. Araki, N. Ueda, "New Formulations and Efficient Algorithms for Multichannel NMF," IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA 2011), pp. 153-156, Oct. 2011.**H. Sawada**, H. Kameoka, S. Araki, N. Ueda, "Formulations and Algorithms for Multichannel Complex NMF," IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2011), pp. 229-232, May, 2011.**H. Sawada**, S. Araki, S. Makino, "A Two-Stage Frequency-Domain Blind Source Separation Method for Underdetermined Convolutive Mixtures," IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA 2007), pp. 139-142, Oct. 2007.- E. Vincent,
**H. Sawada**, P. Bofill, S. Makino, J. P. Rosca, "First Stereo Audio Source Separation Evaluation Campaign: Data, Algorithms and Results," Proc. ICA 2007, pp. 552-559, Sep. 2007. (Paper: PDF) **H. Sawada**, S. Araki, S. Makino, "MLSP 2007 Data Analysis Competition: Frequency-Domain Blind Source Separation for Convolutive Mixtures of Speech/Audio Signals," IEEE International Workshop on Machine Learning for Signal Processing (MLSP 2007), pp. 45-50, Aug. 2007. (Paper: PDF)**H. Sawada**, S. Araki, S. Makino, "Measuring Dependence of Bin-wise Separated Signals for Permutation Alignment in Frequency-domain BSS," IEEE International Symposium on Circuits and Systems (ISCAS 2007), pp. 3247-3250, May 2007.**H. Sawada**, S. Araki, R. Mukai, S. Makino, "Blind Separation and Localization of Speeches in a Meeting Situation," Asilomar Conference on Signals, Systems and Computers (Asilomar 2006), pp. 1407-1411, Oct. 2006. (Paper: PDF)- D. Kolossa,
**H. Sawada**, R. F. Astudillo, R. Orglmeister, S. Makino, "Recognition of Convolutive Speech Mixtures by Missing Feature Techniques for ICA," Asilomar Conference on Signals, Systems and Computers (Asilomar 2006), pp. 1397-1401, Oct. 2006. **H. Sawada**, S. Araki, R. Mukai, S. Makino, "Solving the Permutation Problem of Frequency-Domain BSS when Spatial Aliasing Occurs with Wide Sensor Spacing," IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2006), vol. V, pp. 77-80, May 2006.**H. Sawada**, S. Araki, R. Mukai, S. Makino, "On Calculating the Inverse of Separation Matrix in Frequency-Domain Blind Source Separation," Proc. ICA 2006 (LNCS 3889, © Springer), pp. 691-699, Mar. 2006.**H. Sawada**, R. Mukai, S. Araki, S. Makino, "Real-time blind extraction of dominant target sources from many background interferences," International Workshop on Acoustic Echo and Noise Control (IWAENC 2005), Sep. 2005. (Paper: PDF)**H. Sawada**, R. Mukai, S. Araki, S. Makino, "Multiple Source Localization using Independent Component Analysis," IEEE AP-S International Symposium and USNC/URSI National Radio Science Meeting (AP-S/URSI 2005), July 2005.**H. Sawada**, S. Araki, R. Mukai, S. Makino, "Blind extraction of a dominant source from mixtures of many sources using ICA and time-frequency masking," IEEE International Symposium on Circuits and Systems (ISCAS 2005), pp. 5882-5885, May 2005.**H. Sawada**, S. Araki, R. Mukai, S. Makino, "Blind Extraction of a Dominant Source Signal from Mixtures of Many Sources," IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2005), vol. III, pp. 61-64, Mar. 2005.- S. C. Douglas,
**H. Sawada**, S. Makino, "A Spatio-Temporal FastICA Algorithm for Separating Convolutive Mixtures," IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2005), vol. V, pp. 165-168, Mar. 2005. **H. Sawada**, R. Mukai, S. Araki, S. Makino, "Frequency-domain Blind Source Separation without Array Geometry Information," Joint Workshop on Hands-Free Speech Communication and Microphone Arrays (HSCMA2005), Mar. 2005.- S. Winter,
**H. Sawada**, S. Araki, S. Makino, "Hierarchical clustering applied to overcomplete BSS for convolutive mixtures," ISCA Tutorial and Research Workshop on Statistical and Perceptual Audio Processing (SAPA 2004), Oct. 2004. (Paper: PDF) **H. Sawada**, S. Winter, R. Mukai, S. Araki, S. Makino, "Estimating the Number of Sources for Frequency-Domain Blind Source Separation," Proc. ICA 2004 (LNCS 3195, © Springer), pp. 610-617, Sep. 2004.- S. C. Douglas,
**H. Sawada**, S. Makino, "On Coefficient Delay in Natural Gradient Blind Deconvolution and Source Separation Algorithms," Proc. ICA 2004 (LNCS 3195, © Springer), pp. 634-642, Sep. 2004. - S. Winter,
**H. Sawada**, S. Araki, S. Makino, "Overcomplete BSS for convolutive mixtures based on hierarchical clustering," Proc. ICA 2004 (LNCS 3195, © Springer), pp. 652-660, Sep. 2004. **H. Sawada**, R. Mukai, S. Araki, S. Makino, "Convolutive Blind Source Separation for more than Two Sources in the Frequency Domain," IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2004), vol. III, pp. 885-888, May. 2004.- S. C. Douglas,
**H. Sawada**, S. Makino, "Natural Gradient Multichannel Blind Deconvolution and Source Separation using Causal FIR Filters," IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2004), vol. V, pp. 477-480, May. 2004. - S. C. Douglas,
**H. Sawada**, S. Makino, "A Causal Frequency-Domain Implementation of a Natural Gradient Multichannel Blind Deconvolution and Source Separation Algorithm," International Congress on Acoustics, p. I-85, Apr. 2004. **H. Sawada**, R. Mukai, S. Araki, S. Makino, "Solving the Permutation and the Circularity Problem of Frequency-Domain Blind Source Separation," International Congress on Acoustics, pp. I-89, Apr. 2004. (Paper: PDF)- S. C. Douglas,
**H. Sawada**, S. Makino, "Natural Gradient Multichannel Blind Deconvolution and Speech Separation Using Causal FIR Filters," Asilomar Conference on Signals, Systems, and Computers, MP2-3, Nov. 2003. - S. Winter,
**H. Sawada**, S. Makino, "Geometrical Understanding of the PCA Subspace Method for Overdetermined Blind Source Separation," International Workshop on Acoustic Echo and Noise Control (IWAENC2003), pp. 231-234, Sep. 2003. (Paper: PDF) **H. Sawada**, R. Mukai, S. de la Kethulle, S. Araki, S. Makino, "Spectral Smoothing for Frequency-Domain Blind Source Separation," International Workshop on Acoustic Echo and Noise Control (IWAENC2003), pp. 311-314, Sep. 2003. (Paper: PDF)**H. Sawada**, R. Mukai, S. Makino, "Direction of Arrival Estimation for Multiple Source Signals using Independent Component Analysis," Seventh International Symposium on Signal Processing and its Applications (ISSPA 2003), vol. 2, pp. 411-414, July 2003. (Paper: PDF)**H. Sawada**, R. Mukai, S. Araki, S. Makino, "A Robust Approach to the Permutation Problem of Frequency-Domain Blind Source Separation," IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2003), vol. V, pp. 381-384, Apr. 2003.- S. Winter,
**H. Sawada**, S. Makino, "Geometrical understanding of the PCA subspace method for overdetermined blind source separation," IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2003), vol. II, pp. 769-772, Apr. 2003. **H. Sawada**, R. Mukai, S. Araki, S. Makino, "A Robust and Precise Method for Solving the Permutation Problem of Frequency-Domain Blind Source Separation," 4th International Symposium on Independent Component Analysis and Blind Signal Separation (ICA2003), pp. 505-510, Apr. 2003. (Paper: PDF)- S. Winter,
**H. Sawada**, S. Makino, "Geometrical interpretation of the PCA subspace method for overdetermined blind source separation," 4th International Symposium on Independent Component Analysis and Blind Signal Separation (ICA2003), pp. 775-780, Apr. 2003. **H. Sawada**, S. Araki, R. Mukai, S. Makino, "Blind Source Separation with Different Sensor Spacing and Filter Length for Each Frequency Range," IEEE International Workshop on Neural Networks for Signal Processing (NNSP2002), pp. 465-474, Sep. 2002.**H. Sawada**, R. Mukai, S. Araki, S. Makino, "Polar Coordinate based Nonlinear Function for Frequency Domain Blind Source Separation," IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2002), vol. I, pp. 1001-1004, May 2002.**H. Sawada**, R. Mukai, S. Araki and S. Makino, "A Polar-Coordinate based Activation Function for Frequency Domain Blind Source Separation," 3rd International Conference on Independent Component Analysis and Blind Signal Separation (ICA2001), pp. 663-668, Dec. 2001. (Paper: PDF)**H. Sawada**, S. Yamashita and A. Nagoya, "SPFD: A Method to Express Functional Flexibility," 10th International Workshop on Post-Binary ULSI Systems, May 2001.- K. Aoyama,
**H. Sawada**, A. Nagoya and K. Nakajima "A Threshold Logic-based Reconfigurable Element with a Novel Programming Technology," International Workshop on Field Programmable Logic and Applications (FPL 2000), August 2000. - S. Yamashita,
**H. Sawada**and A. Nagoya, "A Layout Driven Logic Decomposition Model," International Workshop on Logic Synthesis (IWLS 2000), May 2000. **H. Sawada**, S. Yamashita and A. Nagoya, "A Boolean Division Algorithm based on Implicit Cube Set Representations," Workshop on Synthesis and System Integration of Mixed Technologies (SASIMI 2000), pp. 279-283, April 2000.- S. Yamashita,
**H. Sawada**and A. Nagoya, "An Efficient Framework of Using Various Decomposition Methods to Synthesize LUT Networks and Its Evaluation," Asia and South Pacific Design Automation Conference (ASP-DAC 2000), pp. 253-258, January 2000. **H. Sawada**, S. Yamashita and A. Nagoya, "An Efficient Method for Generating Kernels on Implicit Cube Set Representations," International Workshop on Logic Synthesis (IWLS '99), pp. 260-263, June 1999. (Paper: PDF)- S. Yamashita,
**H. Sawada**and A. Nagoya, "An Integrated Approach for Synthesizing LUT Networks," Proc. of the 9th Great Lakes Symposium on VLSI (GLS-VLSI '99), pp. 136-139, Feb. 1999. **H. Sawada**, S. Yamashita and A. Nagoya, "Efficient Methods for a Simple Disjoint Decomposition and Non-Disjoint Bi-Decomposition," 7th International Workshop on Post-Binary ULSI Systems, pp. 34-37, May 1998. (Handout: PDF)**H. Sawada**, S. Yamashita and A. Nagoya, "Restructuring Logic Representations with Easily Detectable Simple Disjunctive Decompositions," Proc. Design, Automation and Test in Europe Conf. (DATE '98), pp. 755-759, Feb. 1998. (Paper: PDF)- S. Yamashita,
**H. Sawada**and A. Nagoya, "New Methods to Find Optimal Non-Disjoint Bi-Decompositions," Proc. of Asia and South Pacific Design Automation Conference 1998 (ASP-DAC '98), pp. 59-68, Feb. 1998. - T. Suyama, M. Yokoo, and
**H. Sawada**, "Solving Satisfiability Problems Using Logic Synthesis and Reconfigurable Hardware," Proc. of the 31st Annual Hawaii International Conference on System Sciences (HICSS-31), Vol. VII, pp. 179-186, Jan. 1998. **H. Sawada**, S. Yamashita and A. Nagoya, "Restricted Simple Disjunctive Decompositions Based on Grouping Symmetric Variables," Proc. the Seventh Great Lakes Symposium on VLSI (GLS-VLSI '97), pp. 39-44, Mar. 1997.- S. Yamashita,
**H. Sawada**and A. Nagoya, "A New Method to Express Functional Permissibilities for LUT based FPGAs and Its Applications," Proc. Int'l Conf. Computer-Aided Design (ICCAD '96), pp. 254-261, Nov. 1996. - T. Suyama, M. Yokoo, and
**H. Sawada**, "Solving Satisfiability Problems on FPGAs," Proc. of the 6th International Workshop on Field Programmable Logic and Applications (FPL '96), pp. 136-145, Sep. 1996. - M. Yokoo, T. Suyama,
**H. Sawada**, "Solving Satisfiability Problems using Field Programmable Gate Arrays: First Results," Second International Conference on Principles and Practice of Constraint Programming (CP-96), pp. 497-509, Aug. 1996. - T. Suyama,
**H. Sawada**and A. Nagoya, "LUT-based FPGA Technology Mapping using Permissible Functions," Proc. of the 9th International Conference on VLSI Design (VLSI Design '96), pp. 215-218, Jan. 1996. **H. Sawada**, T. Suyama and A. Nagoya, "Logic Synthesis for Look-Up Table based FPGAs using Functional Decomposition and Support Minimization," Proc. Int'l Conf. Computer-Aided Design (ICCAD '95), pp. 353-358, Nov. 1995.**H. Sawada**, T. Suyama and A. Nagoya, "Logic Synthesis Method for Look-Up Table Architectures using Functional Decomposition and Support Minimization," Proc. SASIMI, pp. 161-168, Aug. 1995.- N. Ishiura,
**H. Sawada**and S. Yajima, "Minimization of Binary Decision Diagrams based on Exchanges of Variables," Proc. Int'l Conf. Computer-Aided Design (ICCAD '91), pp. 472-475, Nov. 1991.

- "Computational Power of Binary Decision Diagrams," Master Thesis, Department of Information Science, Faculty of Engineering, Kyoto University, Feb. 1993.

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