Hiroshi SAWADA


Efficient K-Nearest Neighbor Graph Construction Using MapReduce for Large-Scale Data Sets
Tomohiro WARASHINA Kazuo AOYAMA Hiroshi SAWADA Takashi HATTORI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2014/12/01
Vol. E97-D  No. 12  pp. 3142-3154
Type of Manuscript:  PAPER
Category: Data Engineering, Web Information Systems
Keyword: 
k-nearest neighbor graphHadoop MapReducedistributed computing
 Summary | Full Text:PDF(1.5MB)

FOREWORD
Hiroshi SAWADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/10/01
Vol. E96-A  No. 10  pp. 1917-1917
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(191.4KB)

Blind Source Separation of Convolutive Mixtures of Speech in Frequency Domain
Shoji MAKINO Hiroshi SAWADA Ryo MUKAI Shoko ARAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/07/01
Vol. E88-A  No. 7  pp. 1640-1655
Type of Manuscript:  INVITED PAPER (Special Section on Multi-channel Acoustic Signal Processing)
Category: 
Keyword: 
blind source separationconvolutive mixturesindependent component analysisfrequency-domain BSSmicrophone arrayadaptive beamformer
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Multistage SIMO-Model-Based Blind Source Separation Combining Frequency-Domain ICA and Time-Domain ICA
Satoshi UKAI Tomoya TAKATANI Hiroshi SARUWATARI Kiyohiro SHIKANO Ryo MUKAI Hiroshi SAWADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/03/01
Vol. E88-A  No. 3  pp. 642-650
Type of Manuscript:  Special Section PAPER (Special Section on Adaptive Signal Processing and Its Applications)
Category: 
Keyword: 
blind source separationmicrophone arrayindependent component analysisSIMO model
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Blind Source Separation for Moving Speech Signals Using Blockwise ICA and Residual Crosstalk Subtraction
Ryo MUKAI Hiroshi SAWADA Shoko ARAKI Shoji MAKINO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/08/01
Vol. E87-A  No. 8  pp. 1941-1948
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: Speech/Acoustic Signal Processing
Keyword: 
blind source separationindependent component analysisconvolutive mixturesrealtimespectral subtractionpost processing
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Polar Coordinate Based Nonlinear Function for Frequency-Domain Blind Source Separation
Hiroshi SAWADA Ryo MUKAI Shoko ARAKI Shoji MAKINO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/03/01
Vol. E86-A  No. 3  pp. 590-596
Type of Manuscript:  Special Section PAPER (Special Section on Blind Signal Processing: Independent Component Analysis and Signal Separation)
Category: Convolutive Systems
Keyword: 
independent component analysisfrequency domaincomplex-valued signalpolar coordinateCartesian coordinate
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A General Framework to Use Various Decomposition Methods for LUT Network Synthesis
Shigeru YAMASHITA Hiroshi SAWADA Akira NAGOYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/11/01
Vol. E84-A  No. 11  pp. 2915-2922
Type of Manuscript:  PAPER
Category: VLSI Design Technology and CAD
Keyword: 
functional decompositionalgebraic decompositionfield programmable gate array (FPGA)look-up table (LUT)
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Efficient Kernel Generation Based on Implicit Cube Set Representations and Its Applications
Hiroshi SAWADA Shigeru YAMASHITA Akira NAGOYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/12/25
Vol. E83-A  No. 12  pp. 2513-2519
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Logic Synthesis
Keyword: 
multi-level logic synthesissum-of-products expressionimplicit cube set representationkernel
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Restructuring Logic Representations with Simple Disjunctive Decompositions
Hiroshi SAWADA Shigeru YAMASHITA Akira NAGOYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/12/25
Vol. E81-A  No. 12  pp. 2538-2544
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Logic Synthesis
Keyword: 
simple disjunctive decompositionsymmetric variables ordered binary decision diagrammulti-level logic circuit
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An Efficient Method for Finding an Optimal Bi-Decomposition
Shigeru YAMASHITA Hiroshi SAWADA Akira NAGOYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/12/25
Vol. E81-A  No. 12  pp. 2529-2537
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Logic Synthesis
Keyword: 
functional decompositionbi-decompositionANDXORlook-up table
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Logic Synthesis for Look-Up Table Based FPGAs Using Functional Decomposition and Boolean Resubstitution
Hiroshi SAWADA Takayuki SUYAMA Akira NAGOYA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1997/10/25
Vol. E80-D  No. 10  pp. 1017-1023
Type of Manuscript:  Special Section PAPER (Special Issue on Synthesis and Verification of Hardware Design)
Category: Logic Design
Keyword: 
FPGAlook-up table (LUT)functional decompositionBoolean resubstitutionsupport minimization
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Microwave CT Imaging for a Human Forearm at 3GHz
Takayuki NAKAJIMA Hiroshi SAWADA Itsuo YAMAURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/06/25
Vol. E78-B  No. 6  pp. 874-876
Type of Manuscript:  Special Section LETTER (Special Issue on Medical Applications of Electromagnetic Techniques)
Category: 
Keyword: 
microwave imagingmicrowave transmission CTbiological imagingspatial resolutioncorrection of diffraction effectssmall-sized horn antenna
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On the Computational Power of Binary Decision Diagrams
Hiroshi SAWADA Yasuhiko TAKENAGA Shuzo YAJIMA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1994/06/25
Vol. E77-D  No. 6  pp. 611-618
Type of Manuscript:  PAPER
Category: Automata, Languages and Theory of Computing
Keyword: 
binary decision diagramon-line Turing machineplaner circuitpermutationcomplete language
 Summary | Full Text:PDF(640.9KB)