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Paper Abstract and Keywords
Presentation 2014-11-21 15:10
Setting of prior probability considering transition probability of letters and BS for P300 speller
Yuki Shiraya, Tomohiro Yoshikawa, Takeshi Furuhashi (Nagoya Univ)
Abstract (in Japanese) (See Japanese page) 
(in English) P300 speller is one of the BCI that can input characters using P300 which is one of the characteristics in brain wave. Because of low S/N ratio in brain waves, it is necessary to average the signals to improve discriminant performance. However, averaging brain waves degrade the performance of input speed. In this paper, we propose a method which considers the appearance probability of `hiragana', transition probability between letters and prior probability after the input of `BS.' Moreover, we compare the proposed method with the conventional method and show that the performance is improved by the proposed method in P300 speller.
Keyword (in Japanese) (See Japanese page) 
(in English) BCI / P300 / N-gram / BackSpace / Reliability-Based Automatic Repeat reQuest / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 326, NC2014-32, pp. 39-42, Nov. 2014.
Paper # NC2014-32 
Date of Issue 2014-11-14 (MBE, NC) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee MBE NC  
Conference Date 2014-11-21 - 2014-11-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To NC 
Conference Code 2014-11-MBE-NC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Setting of prior probability considering transition probability of letters and BS for P300 speller 
Sub Title (in English)  
Keyword(1) BCI  
Keyword(2) P300  
Keyword(3) N-gram  
Keyword(4) BackSpace  
Keyword(5) Reliability-Based Automatic Repeat reQuest  
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1st Author's Name Yuki Shiraya  
1st Author's Affiliation Nagoya University (Nagoya Univ)
2nd Author's Name Tomohiro Yoshikawa  
2nd Author's Affiliation Nagoya University (Nagoya Univ)
3rd Author's Name Takeshi Furuhashi  
3rd Author's Affiliation Nagoya University (Nagoya Univ)
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Speaker
Date Time 2014-11-21 15:10:00 
Presentation Time 25 
Registration for NC 
Paper # IEICE-MBE2014-62,IEICE-NC2014-32 
Volume (vol) IEICE-114 
Number (no) no.325(MBE), no.326(NC) 
Page pp.23-26(MBE), pp.39-42(NC) 
#Pages IEICE-4 
Date of Issue IEICE-MBE-2014-11-14,IEICE-NC-2014-11-14 


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