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- Fabien Lotte, Junya Fujisawa, Hideaki Touyama, Rika Ito, Michitaka Hirose, Anatole Lécuyer
- Advances in Computer Entertainment Technology
- 2009

Brain-Computer Interfaces (BCI) are communication systems that enable users to interact with computers using only brain activity. This activity is generally measured by ElectroEncephaloGraphy (EEG). A major limitation of BCI is the electrical sensitivity of EEG which causes severe deterioration of the signals when the user is moving. This constrains current… (More)

- Rika Ito, Kenji Suyama, Ryuichi Hirabayashi
- ICASSP
- 2001

- Rika Ito, Tomoyasu Fukui, +6 authors Tsutomu Hirano
- Drugs in R&D
- 2015

INTRODUCTION
It remains unknown whether dipeptidyl peptidase-4 (DPP-4) inhibitors improve early-phase insulin secretion in Japanese patients with type 2 diabetes (T2D), a disease characterized by impaired insulin secretion. We investigated the changes in insulin secretion before and after treatment with the DPP-4 inhibitor teneligliptin in patients with T2D… (More)

- Rika Ito
- 2016

- Tetsuya Fujie, Rika Ito, Kenji Suyama, Ryuichi Hirabayashi
- ISCAS
- 2003

In this paper, we consider design problems of linear phase FIR filter with CSD(or SP2) coefficients. When the total number of non zero SP2 terms is given for the design problem, we have to determine the number of non zero SP2 terms allocated for each filter coefficient respectively, while keeping the total number. However, it is considered this problem… (More)

- Rika Ito, Tetsuya Fujie, Kenji Suyama, Ryuichi Hirabayashi
- ISCAS
- 2002

- Rika Ito
- 2009 17th Euromicro International Conference on…
- 2009

The use of PC cluster systems composed of many PCs is largely spread in these days. It is important to improve system usage keeping proper fair-share policy. This optimization problem is difficult to solve. In scheduler soft-ware, there are many parameters and the effectiveness of many parameters is related with each other complicatedly. Therefore it is… (More)

- Rika Ito, Kenji Suyama, Ryuichi Hirabayashi
- ISCAS
- 2001

The purpose of the pitper is to proposc a new tlcsign method of FIR. filters with discrete coefficients considering optimidity. In the proposed method, the design problem of FIR. filters is formulated as a Mixed Integer Semi-Infinit c Linear Progrimiiiiing problem (MISILP) , which can be solved by a hrancli and bound technique. Then, it is possible to… (More)

- SENSE WedPmPO, Rika Ito, Tetsuya Fujie, Kenji Suyama, Ryuichi Hirabayashi
- 2004

In this paper, we consider design problems of linear phase FIR filter with CSD(or SP2) coefficients. When the total number of non zero SP2 terms is given for the design problem, we have to determine the number of non zero SP2 terms allocated for each filter coefficient respectively while keeping the total number. However, it is considered this problem is… (More)

- Rika Ito
- 2009 International Conference on Complex…
- 2009

The use of PC cluster systems composed of many PCs is largely spread in these days. It is important to improve system usage keeping proper fair-share policy. This optimization problem is difficult to solve. In scheduler software, there are many parameters and the effectiveness of many parameters is related with each other complicatedly. Therefore it is more… (More)