Committee 
Date Time 
Place 
Paper Title / Authors 
Abstract 
Paper # 
PRMU 
20221216 16:15 
Toyama 
Toyama International Conference Center (Primary: Onsite, Secondary: Online) 
On partitioning of the space of onedimensional normal distributions based on e(m)divergence Jun Fujiki (Fukuoka Univ.), Shotaro Akaho (AIST) PRMU202254 
Partitioning of the space of onedimensional normal distributions based on e(m)divergence is useful when clustering and... [more] 
PRMU202254 pp.116121 
NLP, MICT, MBE, NC (Joint) [detail] 
20220123 11:20 
Online 
Online 
Towards 2class classification via e(m)PCA Jun Fujiki (Fukuoka Univ.), Shotaro Akaho (AIST) NC202143 
In many data analysis methods, observed data are treated as points in highdimensional Euclidean space, called feature s... [more] 
NC202143 pp.5558 
IBISML 
20200109 13:50 
Tokyo 
ISM 
Dimensionality reduction method for gaussian process posteriors based on information geometry Hideaki Ishibashi (Kyutech), Shotaro Akaho (AIST/RIKEN) IBISML201920 
This paper proposes an extension of principal component analysis for gaussian process posteriors which is denoted by GP... [more] 
IBISML201920 pp.1724 
NC, IBISML, IPSJMPS, IPSJBIO [detail] 
20190618 10:50 
Okinawa 
Okinawa Institute of Science and Technology 
A sleep state analysis from calcium imaging data using nonnegative matrix factorization Mizuo Nagayama, Toshimitsu Aritake (Waseda Univ.), Hideitsu Hino (ISM), Takeshi Kanda, Takehiro Miyazaki, Masashi Yanagisawa (Univ. of Tsukuba), Shotaro Akaho (AIST), Noboru Murata (Waseda Univ.) NC201914 IBISML201912 
Sleep is an essential process for the survival of animals, however, its phenomenon is poorly understood. We aim to disco... [more] 
NC201914 IBISML201912 pp.5761(NC), pp.7983(IBISML) 
NC, IBISML, IPSJBIO, IPSJMPS [detail] 
20180613 15:25 
Okinawa 
Okinawa Institute of Science and Technology 
Current Dipole Localization from EEG with BirthDeath Process Keita Nakamura (Waseda Univ.), Sho Sonoda (RIKEN), Hideitsu Hino (ISM), Masahiro Kawasaki (Univ. of Tsukuba), Shotaro Akaho (AIST), Noboru Murata (Waseda Univ.) IBISML201810 
We explore the EEG source localization problem as the estimation of current dipoles. We formulate the relation between c... [more] 
IBISML201810 pp.6774 
IBISML 
20180305 13:25 
Fukuoka 
Nishijin Plaza, Kyushu University 
Information Geometry of Modal Linear Regression Keishi Sando (Univ. of Tsukuba), Shotaro Akaho (AIST), Noboru Murata (Waseda Univ.), Hideitsu Hino (Univ. of Tsukuba) IBISML201791 
(To be available after the conference date) [more] 
IBISML201791 pp.714 
IBISML 
20180305 16:10 
Fukuoka 
Nishijin Plaza, Kyushu University 
Bootstrap Outlier Test Hayato Watanabe (Waseda Univ.), Hideitsu Hino (Univ. of Tsukuba/RIKEN), Shotaro Akaho (AIST), Noboru Murata (Waseda Univ.) IBISML201794 
[more] 
IBISML201794 pp.2733 
IBISML 
20171109 13:00 
Tokyo 
Univ. of Tokyo 
Evaluation of KLdivergence between Gaussian process posteriors by finite dimensional normal distributions Hideaki Ishibashi, Tetsuo Furukawa (Kyutech), Shotaro Akaho (AIST) IBISML201755 
[more] 
IBISML201755 pp.155160 
IBISML 
20171110 13:00 
Tokyo 
Univ. of Tokyo 
[Poster Presentation]
Effect of maximum likelihood estimation after L1 regularization in learning of loglinear models Kazuya Takabatake, Shotaro Akaho (AIST) IBISML201786 
$L_1$ regularization has two functions.
One function is the structure learning by parameter reduction, and another func... [more] 
IBISML201786 pp.369375 
MBE, NC (Joint) 
20161119 11:35 
Miyagi 
Tohoku University 
Estimation of Neural Connections from Partially Observed Spikes Taishi Iwasaki (Waseda Univ.), Hideitsu Hino (Tsukuba Univ.), Masami Tatsuno (Lethbridge Univ.), Shotaro Akaho (AIST), Noboru Murata (Waseda Univ.) NC201636 
Estimation of neural connections from spike data is an important problem for investigating information processing in bra... [more] 
NC201636 pp.2126 
PRMU, IPSJCVIM, IBISML [detail] 
20160906 11:45 
Toyama 

PRMU201685 IBISML201640 
(To be available after the conference date) [more] 
PRMU201685 IBISML201640 pp.233240 
IBISML 
20160318 10:25 
Tokyo 
Institute of Statistical Mathematics 
Entropy Estimator Based on Polynomial Regression with Poisson Error Structure Hideitsu Hino (Univ. of Tsukuba), Shotaro Akaho (AIST), Noboru Murata (Waseda Univ.) IBISML2015100 
[more] 
IBISML2015100 pp.4753 
IBISML 
20151126 15:00 
Ibaraki 
Epochal Tsukuba 
[Poster Presentation]
Nonparametric emixture Estimation Ken Takano (Waseda Univ.), Hideitsu Hino (Univ. of Tsukuba), Shotaro Akaho (AIST), Noboru Murata (Waseda Univ.) IBISML201559 
Mixture modeling is one of the simplest ways to represent complicated probability density functions, and to integrate in... [more] 
IBISML201559 pp.4552 
IBISML 
20151126 15:00 
Ibaraki 
Epochal Tsukuba 
[Poster Presentation]
Information Geometry of Nonnegative Matrix Factorization Neneka Nara, Ken Takano (Waseda Univ.), Hideitsu Hino (Univ. of Tsukuba), Shotaro Akaho (AIST), Noboru Murata (Waseda Univ.) IBISML201560 
[more] 
IBISML201560 pp.5359 
IBISML 
20151126 15:00 
Ibaraki 
Epochal Tsukuba 
[Poster Presentation]
Fullspan loglinear model with L1 reguralization and its performance Kazuya Takabatake, Shotaro Akaho (AIST) IBISML201573 
The fullspan loglinear model is a loglinear model that has sufficient number of basis functions so that it is able to... [more] 
IBISML201573 pp.153157 
IBISML 
20151127 14:00 
Ibaraki 
Epochal Tsukuba 
[Poster Presentation]
Nonnegative matrix factorization of test scores Atsunori Kanemura (AIST), Hiroko Onari, Manabu Shikauchi, Masataka Hashimoto (Recruit Career), Shotaro Akaho (AIST) IBISML201580 
When assessing skills of humans or designing itemsets, having fewer number of items is costefficient both in time and m... [more] 
IBISML201580 pp.203208 
PRMU, IBISML, IPSJCVIM [detail] 
20150914 13:30 
Ehime 

Curved exponential family fitting in the space of normal distribution Jun Fujiki, Masaru Tanaka (Fukuoka Univ.), Shotaro Akaho (AIST) PRMU201570 IBISML201530 
We consider the manifold fitting to a given set of points in the space
of probability distributions.
Although only t... [more] 
PRMU201570 IBISML201530 pp.1924 
IBISML 
20141118 15:00 
Aichi 
Nagoya Univ. 
[Poster Presentation]
Basis functions for fast learning of loglinear models Kazuya Takabatake, Shotaro Akaho (AIST) IBISML201476 
We propose basis functions for loglinear models and a fast learning algorithm that works on these bases.
These bases a... [more] 
IBISML201476 pp.307312 
PRMU, IBISML, IPSJCVIM [detail] 
20140901 17:00 
Ibaraki 

Analysing the Fairness of Fairnessaware Classifiers Toshihiro Kamishima, Shotaro Akaho, Hideki Asoh (AIST), Jun Sakuma (Univ. of Tsukuba) PRMU201447 IBISML201428 
Calders and Verwer's twonaiveBayes is one of fairnessaware classifiers, which classify objects while excluding the in... [more] 
PRMU201447 IBISML201428 pp.8592 
IBISML 
20131112 15:45 
Tokyo 
Tokyo Institute of Technology, KuramaeKaikan 
[Poster Presentation]
Performance Comparisons between Dependency Networks and Bayesian Networks Kazuya Takabatake, Shotaro Akaho (AIST) IBISML201341 
Dependency networks are graphical models in which tasks of learning are done by totally local and simple algorithms of i... [more] 
IBISML201341 pp.3944 