Masaru Itoh - Academia.edu (original) (raw)
Papers by Masaru Itoh
IEEJ Transactions on Electronics, Information and Systems, 2004
This paper presents an optimization method for guitar fingering. The fingering is to determine a ... more This paper presents an optimization method for guitar fingering. The fingering is to determine a unique combination of string, fret and finger corresponding to the note. The method aims to generate the best fingering pattern for guitar robots rather than beginners. Furthermore, it can be applied to any musical score on single notes. A fingering action can be decomposed into three motions, that is, a motion of press string, release string and move fretting hand. The cost for moving the hand is estimated on the basis of Manhattan distance which is the sum of distances along fret and string directions. The objective is to minimize the total fingering costs, subject to fret, string and finger constraints. As a sequence of notes on the score forms a line on time series, the optimization for guitar fingering can be resolved into a multistage decision problem. Dynamic programming is exceedingly effective to solve such a problem. A level concept is introduced into rendering states so as to make multiple DP solutions lead a unique one among the DP backward processes. For example, if two fingerings have the same value of cost at different states on a stage, then the low position would be taken precedence over the high position, and the index finger would be over the middle finger.
Transactions of the Society of Instrument and Control Engineers, 1996
2009 First International Conference on Information Science and Engineering, 2009
... Geophys. Res. Lett., 21(14): 1559-1560, 1994. [11] SR Prabhakaran Nayar, VNRadhika, K. Revath... more ... Geophys. Res. Lett., 21(14): 1559-1560, 1994. [11] SR Prabhakaran Nayar, VNRadhika, K. Revathy, V. Ramadas, Wavelet analysis of solar, solar wind and geomagnetic parameters, Solar Physics, 208(2): 359-373, 2002. [12 ...
Electrical Engineering in Japan, 1989
Modern Physics Letters B, 2011
Financial market is a complex system whose characteristic behaviors can be caught in correspondin... more Financial market is a complex system whose characteristic behaviors can be caught in corresponding time series. Analyzing such time series by appropriate methods will aid in making inferences and predictions. Here phase synchronization approach is used for visual pattern recognition of crises. Based on Empirical Mode Decomposition and the Hilbert transform, phase evolution of various rhythmic components exiting in the market is extracted. Then the concept of synchronization can be successfully applied to crises detection. Unlike other approaches, this detection distinguishes crises from normal state according to variations of interaction among rhythmic components. The empirical results mentioned here convince us of the fact that financial crises take place at the time when the adjustment processes of other quasi-periodic oscillations and the trend are out of synchronization. On the contrary, when other rhythmic oscillations can be synchronized with the trend, the market will develop...
International Journal of Systems Science, 1992
ABSTRACT
IEEE Transactions on Power Systems, 1989
IEEE Transactions on Power Systems, 1987
This paper presents a new method for solving efficiently a large-scale optimal unit conmitmnt pro... more This paper presents a new method for solving efficiently a large-scale optimal unit conmitmnt problem. Our problen includes three types of units (i) usual thermal units, (ii) fuel constrained thermal units and (iii) punped-storage Recently a paper similar to our paper has
IEEE Transactions on Power Delivery, 1989
IEEE Transactions on Power Delivery, 1988
IEEE Transactions on Power Delivery, 1990
In this paper, several algorithms and methods are proposed, Which tend to be left unnoticed but a... more In this paper, several algorithms and methods are proposed, Which tend to be left unnoticed but are important for the realization of an automatic ard systematic switching operation in a distribution system. To explain the importance of these algorithms and methods, the concept of an operating state is introduced and the correlation of different purpose switching operations is illustrated.Each proposed algorithm or method is proved to be practical by real scale simulation or a field test.
IEEJ Transactions on Electronics, Information and Systems
IEEJ Transactions on Electronics, Information and Systems, 2004
This paper presents an optimization method for guitar fingering. The fingering is to determine a ... more This paper presents an optimization method for guitar fingering. The fingering is to determine a unique combination of string, fret and finger corresponding to the note. The method aims to generate the best fingering pattern for guitar robots rather than beginners. Furthermore, it can be applied to any musical score on single notes. A fingering action can be decomposed into three motions, that is, a motion of press string, release string and move fretting hand. The cost for moving the hand is estimated on the basis of Manhattan distance which is the sum of distances along fret and string directions. The objective is to minimize the total fingering costs, subject to fret, string and finger constraints. As a sequence of notes on the score forms a line on time series, the optimization for guitar fingering can be resolved into a multistage decision problem. Dynamic programming is exceedingly effective to solve such a problem. A level concept is introduced into rendering states so as to make multiple DP solutions lead a unique one among the DP backward processes. For example, if two fingerings have the same value of cost at different states on a stage, then the low position would be taken precedence over the high position, and the index finger would be over the middle finger.
Transactions of the Society of Instrument and Control Engineers, 1996
2009 First International Conference on Information Science and Engineering, 2009
... Geophys. Res. Lett., 21(14): 1559-1560, 1994. [11] SR Prabhakaran Nayar, VNRadhika, K. Revath... more ... Geophys. Res. Lett., 21(14): 1559-1560, 1994. [11] SR Prabhakaran Nayar, VNRadhika, K. Revathy, V. Ramadas, Wavelet analysis of solar, solar wind and geomagnetic parameters, Solar Physics, 208(2): 359-373, 2002. [12 ...
Electrical Engineering in Japan, 1989
Modern Physics Letters B, 2011
Financial market is a complex system whose characteristic behaviors can be caught in correspondin... more Financial market is a complex system whose characteristic behaviors can be caught in corresponding time series. Analyzing such time series by appropriate methods will aid in making inferences and predictions. Here phase synchronization approach is used for visual pattern recognition of crises. Based on Empirical Mode Decomposition and the Hilbert transform, phase evolution of various rhythmic components exiting in the market is extracted. Then the concept of synchronization can be successfully applied to crises detection. Unlike other approaches, this detection distinguishes crises from normal state according to variations of interaction among rhythmic components. The empirical results mentioned here convince us of the fact that financial crises take place at the time when the adjustment processes of other quasi-periodic oscillations and the trend are out of synchronization. On the contrary, when other rhythmic oscillations can be synchronized with the trend, the market will develop...
International Journal of Systems Science, 1992
ABSTRACT
IEEE Transactions on Power Systems, 1989
IEEE Transactions on Power Systems, 1987
This paper presents a new method for solving efficiently a large-scale optimal unit conmitmnt pro... more This paper presents a new method for solving efficiently a large-scale optimal unit conmitmnt problem. Our problen includes three types of units (i) usual thermal units, (ii) fuel constrained thermal units and (iii) punped-storage Recently a paper similar to our paper has
IEEE Transactions on Power Delivery, 1989
IEEE Transactions on Power Delivery, 1988
IEEE Transactions on Power Delivery, 1990
In this paper, several algorithms and methods are proposed, Which tend to be left unnoticed but a... more In this paper, several algorithms and methods are proposed, Which tend to be left unnoticed but are important for the realization of an automatic ard systematic switching operation in a distribution system. To explain the importance of these algorithms and methods, the concept of an operating state is introduced and the correlation of different purpose switching operations is illustrated.Each proposed algorithm or method is proved to be practical by real scale simulation or a field test.
IEEJ Transactions on Electronics, Information and Systems