Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |

IT, EMM |
2022-05-18 12:40 |
Gifu |
Gifu University (Primary: On-site, Secondary: Online) |
On Bayesian Approach for Classification of Context Tree Model Shota Saito (Gunma Univ.) IT2022-11 EMM2022-11 |
This study deals with the Bayesian classification problem, which was investigated by Merhav and Ziv [IEEE Trans. Inf. Th... [more] |
IT2022-11 EMM2022-11 pp.56-60 |

IBISML |
2022-03-08 11:20 |
Online |
Online |
Tree-Structured Generative Model with Latent Variables and Approximate Variational Bayesian Inference Naoki Ichijo, Yuta Nakahara (Waseda Univ.), Shota Saito (Gunma Univ.), Toshiyasu Matsushima (Waseda Univ.) IBISML2021-33 |
[more] |
IBISML2021-33 pp.19-26 |

RCS, SIP, IT |
2022-01-21 09:00 |
Online |
Online |
An Approximation by Meta-Tree Boosting Method to Bayesian Optimal Prediction for Decision Tree Model Wenbin Yu, Koki Kazama, Yuta Nakahara, Naoki Ichijo (Waseda Univ.), Shota Saito (Gunma Univ.), Toshiyasu Matsushima (Waseda Univ.) IT2021-67 SIP2021-75 RCS2021-235 |
[more] |
IT2021-67 SIP2021-75 RCS2021-235 pp.219-224 |

RCS, SIP, IT |
2022-01-21 13:55 |
Online |
Online |
Meta-Bound for Lower Bounds of Bayes Risk Shota Saito (Gunma Univ.) IT2021-82 SIP2021-90 RCS2021-250 |
In the parameter estimation problem of statistics and machine learning, information-theoretic lower bounds of the Bayes ... [more] |
IT2021-82 SIP2021-90 RCS2021-250 pp.301-305 |

IT |
2021-07-09 13:00 |
Online |
Online |
Bayesian Optimal Prediction and Its Approximation Algorithm for the Difference of Response Variables with and without Measures Considering Individual Differences by Assuming Latent Clusters Taisuke Ishiwatari (Waseda Univ.), Shota Saito (Gunma Univ.), Toshiyasu Matsushima (Waseda Univ.) IT2021-23 |
In observational studies, there are problems such as "the measure can be given only once to the target" and "the charact... [more] |
IT2021-23 pp.45-50 |

IT |
2021-07-09 13:25 |
Online |
Online |
A Note on the Reduction of Computational Complexity for Linear Regression Model Including Cluster Explanatory Variables and Regression Explanatory Variables
-- Bayes Optimal Prediction and Sub-Optimal Algorithm -- Sho Kayama (Waseda Univ.), Shota Saito (Gunma Univ.), Toshiyasu Matsushima (Waseda Univ.) IT2021-24 |
By considering the probability model with the structure that the data is divided into clusters and each cluster has an i... [more] |
IT2021-24 pp.51-56 |

WBS, IT, ISEC |
2021-03-04 10:55 |
Online |
Online |
An Efficient Bayes Coding Algorithm for the Source Based on Context Tree Models that Vary from Section to Section Koshi Shimada, Shota Saito, Toshiyasu Matsushima (Waseda Univ.) IT2020-115 ISEC2020-45 WBS2020-34 |
In this paper, we present an efficient coding algorithm for a non-stationary source based on context tree models that ve... [more] |
IT2020-115 ISEC2020-45 WBS2020-34 pp.19-24 |

WBS, IT, ISEC |
2021-03-04 13:20 |
Online |
Online |
[Poster Presentation]
Non-asymptotic converse theorem on the overflow probability of variable-to-fixed length codes Shota Saito, Toshiyasu Matsushima (Waseda Univ.) IT2020-130 ISEC2020-60 WBS2020-49 |
This study considers variable-to-fixed length codes and investigates the non-asymptotic converse theorem on the threshol... [more] |
IT2020-130 ISEC2020-60 WBS2020-49 pp.115-116 |

EA, US, SP, SIP, IPSJ-SLP [detail] |
2021-03-03 16:45 |
Online |
Online |
An optimal prediction of phoneme under Bayes criterion by weighting multiple hidden Markov models Taishi Yamaoka, Shota Saito, Toshiyasu Matsushima (Waseda Univ.) EA2020-76 SIP2020-107 SP2020-41 |
In this paper, we propose a prediction method for prediction problems using a hidden Markov model. Specifically, it is a... [more] |
EA2020-76 SIP2020-107 SP2020-41 pp.97-102 |

IT |
2020-12-02 09:40 |
Online |
Online |
Approximation Method for Bayes Optimal Prediction in Phoneme Recognition Problem Taishi Yamaoka, Shota Saito, Toshiyasu Matsushima (Waseda Univ.) IT2020-30 |
In this paper, we propose a method of phoneme recognition. In the previous studies on phoneme recognition using the Hidd... [more] |
IT2020-30 pp.32-37 |

IT |
2020-12-02 10:30 |
Online |
Online |
Error Probability of Classification Based on the Analysis of the Bayes Code
-- Extension and Example -- Shota Saito, Toshiyasu Matsushima (Waseda Univ.) IT2020-32 |
Suppose that we have two training sequences generated by parametrized distributions $P_{theta^*}$ and $P_{xi^*}$, where ... [more] |
IT2020-32 pp.44-49 |

IT |
2020-07-16 14:45 |
Online |
Online |
Asymptotic Evaluation of $alpha$-divergence between VB Posterior Predictive Distribution and Bayesian Predictive Distribution Kazuki Yamada, Shota Saito, Toshiyasu Matsushima (Waseda Univ.) IT2020-14 |
In this paper, we consider the problem of determining probability distribution of $X_{n+1}$ given ${X_i }_{i=1}^{n}$ fol... [more] |
IT2020-14 pp.19-23 |

IT |
2019-07-25 14:25 |
Tokyo |
NATULUCK-Iidabashi-Higashiguchi Ekimaeten |
Bayes Optimal Prediction and Its Approximative Algorithm on Model Including Cluster Explanatory Variables and Regression Explanatory Variables Haruka Murayama, Shota Saito, Yuta Nakahara, Toshiyasu Matsushima (Waseda Univ.) IT2019-16 |
In this research, data are assumed to be divided in clusters based on a part of the continuous explanatory variables, an... [more] |
IT2019-16 pp.5-10 |

IT |
2019-07-25 14:50 |
Tokyo |
NATULUCK-Iidabashi-Higashiguchi Ekimaeten |
Bayes Optimal Classification on Decision Tree Model and Its Approximative Algorithm Using Ensemble Learning Nao Dobashi, Shota Saito, Toshiyasu Matsushima (Waseda Univ.) IT2019-17 |
In this paper we consider classification problem about discrete category $y$ regarding discrete variables $bm{x}$. Deci... [more] |
IT2019-17 pp.11-16 |

OPE, OCS, LQE |
2018-05-11 16:15 |
Tokyo |
Kikai-Shinko-Kaikan Bldg (Tokyo) |
[Special Invited Talk]
DMD-Unmanaged Long-Haul SDM Transmission Over 2500-km 12-core x 3-mode MC-FMF and 6300-km 3-mode FMF Employing Intermodal Interference Cancelling Technique Kohki Shibahara, Takayuki Mizuno, Doohwan Lee, Yutaka Miyamoto, Hirotaka Ono, Kazuhide Nakajima (NTT), Shota Saitoh, Katsuhiro Takenaga (Fujikura), Kunimasa Saitoh (Hokkaido Univ.) OCS2018-7 OPE2018-7 LQE2018-7 |
This talk provides an overview of advanced space division multiplexing (SDM) technologies that we have developed over th... [more] |
OCS2018-7 OPE2018-7 LQE2018-7 pp.25-27 |

WBS, IT, ISEC |
2018-03-08 09:00 |
Tokyo |
Katsusika Campas, Tokyo University of Science |
Evaluation of Bayes Predictive Distributions under Unknown Parametric Models on Misspecified Models Hirokazu Kono, Shota Saito, Toshiyasu Matsushima (Waseda Univ.) IT2017-103 ISEC2017-91 WBS2017-84 |
In this paper, we discuss a problem to estimate the conditional distribution of $Y_{N+1}$ given $x_{N+1}$ and ${(x_t,y_t... [more] |
IT2017-103 ISEC2017-91 WBS2017-84 pp.1-6 |

IBISML |
2018-03-05 17:25 |
Fukuoka |
Nishijin Plaza, Kyushu University |
Bayesian Independent Component Analysis under Hierarchical Model on Latent Variables Kai Asaba, Shota Saito, Shunsuke Horii, Toshiyasu Matsushima (Waseda Univ.) IBISML2017-97 |
Independent component analysis (ICA) deals with the problem of estimating unknown latent variables which generate the ob... [more] |
IBISML2017-97 pp.49-53 |

IT |
2017-07-14 10:50 |
Chiba |
Chiba University |
Variable-Length Intrinsic Randomness Problem Allowing Non-Vanishing Underflow Probability Jun Yoshizawa, Shota Saito, Toshiyasu Matsushima (Waseda Univ.) IT2017-29 |
This paper deals with the variable-length intrinsic randomness problem for general sources. Previous study adopts the me... [more] |
IT2017-29 pp.73-78 |

OCS, OFT, LSJ (Joint) [detail] |
2016-08-25 14:30 |
Hokkaido |
Chitose-alcadia plaza |
Measurement of inter-core crosstalk in multi-core fibers using a near-infrared camera Shota Saitoh, Yoshimichi Amma, Yusuke Sasaki, Katsuhiro Takenaga, Kazuhiko Aikawa (Fujikura) OCS2016-26 |
The use of multi-core fibers (MCFs) for space-division multiplexing has a great potential for dealing with the traffic g... [more] |
OCS2016-26 pp.7-10 |

OFT, OCS, OPE (Joint) [detail] |
2016-02-19 15:20 |
Okinawa |
Okinawa Univ. |
A principal mode analysis of the group delay spread of homogeneously coupled 3- and 6-core fibers Ren Tojo, Yasuyuki Chida, Takeshi Fujisawa (Hokkaido Univ.), Shota Saitoh, Katsuhiro Takenaga (Fujikura Ltd.), Kunimasa Saitoh (Hokkaido Univ.) OFT2015-71 OPE2015-239 |
(Advance abstract in Japanese is available) [more] |
OFT2015-71 OPE2015-239 pp.89-94(OFT), pp.131-136(OPE) |