- A. Nakabayashi and G. Ueno,

An extension of the ensemble Kalman filter for estimating the observation error covariance matrix based on the variational Bayes's Method

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Monthly Weather Review, Vol. 145, pp. 199-213, 2017. - S. Nakano, K. Suzuki, K. Kawamura, F. Parrenin, and T. Higuchi,

A sequential Bayesian approach for the estimation of the age-depth relationship of the Dome Fuji ice core

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Nonlinear Processes in Geophysics, Vol. 23, pp. 31-44, 2016. - G. Ueno and N. Nakamura,

Bayesian estimation of the observation-error covariance matrix in ensemble-based filters

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Quarterly Journal of the Royal Meteorological Society, Vol. 142, pp. 2055-2080, doi:10.1002/qj.2803, 2016. - S. Nakano, K. Ito, K. Suzuki, and G. Ueno,

Decadal-scale meridional shift of the typhoon recurvature latitude over five decades

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International Journal of Climatology, Vol. 36, pp. 3819-3827, 2016. - H. Kato, A. Yoshizawa, G. Ueno, and S. Obayashi,

A data assimilation methodology for reconstructing turbulent flows around aircraft

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Journal of Computational Physics, Vol. 283, pp. 559-581, 2015. - H. Ikebata, R. Yoshida,

Repulsive parallel MCMC algorithm for discovering diverse motifs from large sequence sets

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Bioinformatics, Vol. 31(10), pp. 1561-1568, 2015. - T. Tokunaga, O. Hirose, S. Kawaguchi, Y. Toyoshima, T. Teramoto,
H. Ikebata, S. Kuge, T. Ishihara, Y. Iino, R. Yoshida,

Automated detection and tracking of many cells by using 4D live-cell imaging data

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Bioinformatics, Vol. 30(12), i43-i51, 2014. - H. Yamashita, T. Higuchi, R. Yoshida,

Atom Environment Kernels on Molecules

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J. Chem. Inf. Model, doi:10.1021/ci400403w, 2014. - S. Nakano, M.-C. Fok, P. C. Brandt, and T. Higuchi,

Estimation of the helium ion density distribution in the plasmasphere based on a single IMAGE/EUV image

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J. Geophys. Res., Vol. 119, pp. 3724-3740, doi:10.1002/2013JA019733, 2014. - S. Nakano, M.-C. Fok, P. C. Brandt, and T. Higuchi,

Estimation of temporal evolution of the helium plasmasphere based on a sequence of IMAGE/EUV images

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J. Geophys. Res., Vol. 119, pp. 3708-3723, doi:10.1002/2013JA019734, 2014. - S. Nakano,

Hybrid algorithm of ensemble transform and importance sampling for assimilation of non-Gaussian observations

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Tellus A, Vol. 66, 21429, doi:10.3402/tellusa.v66.21429, 2014. - G. Ueno and N. Nakamura,

Iterative algorithm for maximum-likelihood estimation of the observation-error covariancematrix for ensemble-based filters

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Quarterly Journal of the Royal Meteorological Society, Vol. 140, pp. 295-315, doi:10.1002/qj.2134, 2014. - M. M. Saito, S. Imoto, R. Yamaguchi, M. Tsubokura, M. Kami, H. Nakada,
H. Sato, S. Miyano, T. Higuchi,

Enhancement of Collective Immunity in Tokyo Metropolitan Area by Selective Vaccination against an Emerging Influenza Pandemic

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PLoS ONE, Vol. 8(9), e72866, doi:10.1371/journal.pone.0072866, 2013. - M. M. Saito, S. Imoto, R. Yamaguchi, M. Kami, H. Nakada, H. Sato,
S. Miyano, T. Higuchi,

Extension and verification of the SEIR model on the 2009 influenza A (H1N1) pandemic in Japan

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Mathematical Biosciences, Vol. 246(1), pp. 47-54, 2013. - H. Nagao, T. Higuchi, S. Miura, and D. Inazu,

Time-series modeling of tide gauge records for monitoring of the crustal activities related to oceanic trench earthquakes around Japan

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The Computer Journal, doi:10.1093/comjnl/bxs139, 2012. - S. Nakano and T. Higuchi,

Non-storm irregular variation of the Dst index

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Annales Geophysicae, vol. 30, pp. 153-162, 2012. - S. Saita, A. Kadokura, N. Sato, S. Fujita, T. Tanaka, Y. Ebihara,
S. Ohtani, G. Ueno, K. Murata, D. Matsuoka, A. Kitamoto, and T. Higuchi,

Displacement of conjugate points during a substorm in a global magnetohydrodynamic simulation

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Journal of Geophysical Research, Vol. 116, A06213, doi:10.1029/2010JA016155, 2011. - T. Ishigaki, T. Higuchi, and K. Watanabe,

Fault detection of a vibration mechanism by spectrum classification with a divergence-based kernel

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IET Signal Processing, Vol. 4, Iss. 5, 518-529, doi:10.1049/iet-spr.2008.0195, 2010. - R. Yoshida, M.M. Saito, H. Nagao, and T. Higuchi,

Bayesian experts in exploring reaction kinetics of transcription circuits

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Bioinformatics, Vol. 26, i589-i595, 2010. - G. Ueno, T. Higuchi, T. Kagimoto, N. Hirose,

Maximum likelihood estimation of error covariances in ensemble-based filters and its application to a coupled atmosphere-ocean model

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Quarterly Journal of the Royal Meteorological Society, Vol.136, 1316-1343, DOI:10.1002/qj.654, 2010. - D. Inazu, T. Higuchi, K. Nakamura,

Optimization of boundary condition and physical parameter in an ocean tide model using an evolutionary algorithm

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Theoretical and Applied Mechanics Japan, Vol. 58, 101-112, 2009. - S. Nakano and T. Higuchi,

Estimation of a long-term variation of a magnetic- storm index using the merging particle filter

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IEICE Trans. Inf. Syst., Vol. E92-D, No.7, pp. 1382-1387, 2009. >> - G. Ueno and T. Tsuchiya,

Covariance regularization in inverse space

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Quarterly Journal of the Royal Meteorological Society, Vol. 135, pp. 1133-1156, 2009. [PDF] - D. Inazu, T. Sato, S. Miura, Y. Ohta, K. Nakamura, H, Fujimoto, C. F. Larsen, and T. Higuchi,

Accurate ocean tide modeling in southeast Alaska and large tidal dissipation around Glacier Bay

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Journal of Oceanography, Vol. 65, No. 3, pp. 335-347, 2009. - K. Nakamura, N. Hirose, B. H. Choi, and T. Higuchi,

Particle filtering in data assimilation and its application to boundary condition of tsunami simulation model

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Data Assimilation for Atmospheric, Oceanic and Hydrologic Applications, edited by S. K. Park and L. Xu, pp. 353-366, Springer, 2009. - S. Nakano, G. Ueno, S. Ohtani, and T. Higuchi,

Impact of the solar-wind dynamic pressure on the Region-2 field-aligned currents

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Journal of Geophysical Research, Vol. 114, A02221, doi:10.1029/2008JA013674, 2009. - R. Yoshida, M. Nagasaki, R. Yamaguchi, S. Imoto, S. Miyano, and T. Higuchi,

Bayesian learning of biological pathways on genomic data assimilation

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Bioinformatics, Vol. 24, No. 22, 2592-2601, 2008. - S. Nakano, G. Ueno, Y. Ebihara, M.-C. Fok, S. Ohtani, P. C. Brandt, D. G. Mitchell, K. Keika, and T. Higuchi,

A method for estimating the ring current structure and the electric potential distribution using ENA data assimilation

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Journal of Geophysical Research, Vol. 113, A05208, doi:10.1029/2006JA011853, 2008. >> - J. Fukuda, S. Miyazaki, T. Higuchi, and T. Kato,

Geodetic inversion for space-time distribution of fault slip with time-varying smoothing regularization

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Geophysical Journal International, Vol. 173, pp. 25-48, 2008. - S. Nakano, G. Ueno, and T. Higuchi,

Merging particle filter for sequential data assimilation

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Nonlinear Processes in Geophysics, Vol. 14, pp. 395-408, 2007. [PDF] - G. Ueno, T. Higuchi, T. Kagimoto, and N. Hirose,

Application of the ensemble Kalman filter and smoother to a coupled atmosphere-ocean model

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Scientific Online Letters on the Atmosphere, Vol. 3, pp. 5-8, 2007. [PDF]

- S. Nakano and Y. Futaana,

Identification of signal and noise components in spacecraft neutral particle data using a bi-level mixture model

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Proceedings of the 4th IEEE International Conference on Data Science and Advanced Analytics, pp. 487-495, doi:10.1109/DSAA.2017.38, 2017. - M. M. Saito, S. Imoto, R. Yamaguchi, S. Miyano, T. Higuchi,

Parameter estimation in multi-compartment SIR model

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Proceedings of 17th International Conference on Information Fusion, 2014. - H. Nagao and T. Higuchi,

Data assimilation system for seismoacoustic waves

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Proceedings of 16th International Conference on Information Fusion, 2013. - M. M. Saito, S. Imoto, R. Yamaguchi, S. Miyano, T. Higuchi,

Estimation of abrupt changes in sentinel observation data of influenza epidemics in Japan

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Proceedings of 16th International Conference on Information Fusion, 2013. - S. Nakano,

A prediction algorithm with a limited number of particles for state estimation of high-dimensional systems

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Proceedings of 16th International Conference on Information Fusion, pp. 1356-1363, 2013. - M. M. Saito, S. Imoto, R. Yamaguchi, S. Miyano, T. Higuchi,

Identifiability of local transmissibility parameters in agent-based pandemic simulation

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Proceedings of 15th International Conference on Information Fusion, 2012. - H. Nagao and T. Higuchi,

Data assimilation of the earth's atmospheric and ionospheric oscillations excited by large earthquakes

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Proceedings of 15th International Conference on Information Fusion, 2012. - S. Nakano and T. Higuchi,

Weight adjustment of the particle filter on distributed computing systems

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Proceedings of 15th International Conference on Information Fusion, 2012. - T. Higuchi,

Embedding reality in a numerical simulation with data assimilation

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Proceedings of 14th International Conference Fusion, 2011. - H. Nagao, N. Kobayashi, S. Nakano and T. Higuchi,

Fault parameter estimation with data assimilation on infrasound variations due to big earthquakes

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Proceedings of 14th International Conference Fusion, 2011. - M. M. Saito, S. Imoto, R. Yamaguchi, S. Miyano and T. Higuchi,

Estimation of macroscopic parameter in agent-based pandemic simulation

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Proceedings of 14th International Conference Fusion, 2011. - K. Hayashi, M. M. Saito, R. Yoshida, T. Higuchi,

Implementation of Sequential Importance Sampling in GPGPU

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Proceedings of the 13th International Conference on Information Fusion, 2010. - H. Nagao, and T. Higuchi,

Web application for time-series analysis based on particle filter available on cloud computing system

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Proceedings of the 13th International Conference on Information Fusion, 2010. - S. Nakano, and T. Higuchi,

A dynamic grouping strategy for implementation of the particle filter on a massively parallel computer

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Proceedings of the 13th International Conference on Information Fusion, 2010. - S. Nakano,

Population-based quasi-Bayesian algorithm for high-dimensional sequential problems and hierarchization of it for distributed computing environments

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Proceedings of 2010 IEEE Congress on Evolutionary Computation, doi:10.1109/CEC.2010.5586535, 2010. - K. Nakamura, R. Yoshida, M. Nagasaki, S. Miyano, and T. Higuchi,

Parameter Estimation of In Silico Biological Pathways with Particle Filtering Towards a Petascale Computing

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The Proceedings of 14th Pacific Symposium on Biocomputing, 227-238, 2009. - T. Ishigaki, and T. Higuchi,

Dynamic Spectrum Classification by Divergence-Based Kernel Machines and Its Application to the Detection of Worn-out banknotes

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The Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing (IEEE ICASSP 2008), 1873-1876, 2008. - T. Ishigaki, and T. Higuchi,

Parameter identification of a pressure regulator with a nonlinear structure using a particle filter based on the nonlinear state space model

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The Proceedings of 11th International Conference of Fusion, 886-891, 2008. - G. Ueno, T. Higuchi, T. Kagimoto, and N. Hirose,

Prediction of ocean state by data assimilation with the ensemble Kalman filter

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SCIS&ISIS 2006, 2006. [PDF] - K. Nakamura, T. Higuchi, and N. Hirose,

Application of Particle Filter to Identification of Tsunami Simulation Model

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SCIS&ISIS 2006, 2006. [PDF] - T. Higuchi and J. Fukuda,

Monte Carlo Mixture Kalman filter and its application to GPS data analysis for spase-time inversion

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13th IFAC Symposium on System Identification, 1299-1304, 2003.