OHAYO players. - Kampei Baba; Mitsuhiro Oga; Yuji Nodera; Ken'ichiro Tanaka; Haruyuki Imai; Jun Kitazawa; Masayoshi Boku (SIGGRAPH Web Graphics, 2004)

On necessary and sufficient conditions for numerical verification of double turning points. - Ken'ichiro Tanaka; Sunao Murashige; Shin'ichi Oishi (Numerische Mathematik, 2004)

Numerical indefinite integration by double exponential sinc method. - Ken'ichiro Tanaka; Masaaki Sugihara; Kazuo Murota (Math. Comput., 2005)

A Steepest Descent Algorithm for M-Convex Functions on Jump Systems. - Kazuo Murota; Ken'ichiro Tanaka (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2006)

Operations on M-Convex Functions on Jump Systems. - Yusuke Kobayashi 001; Kazuo Murota; Ken'ichiro Tanaka (SIAM J. Discret. Math., 2007)

Polynomial-Time Algorithms for Linear and Convex Optimization on Jump Systems. - Akiyoshi Shioura; Ken'ichiro Tanaka (SIAM J. Discret. Math., 2007)

Function classes for successful DE-Sinc approximations. - Ken'ichiro Tanaka; Masaaki Sugihara; Kazuo Murota (Math. Comput., 2009)

Function classes for double exponential integration formulas. - Ken'ichiro Tanaka; Masaaki Sugihara; Kazuo Murota; Masatake Mori (Numerische Mathematik, 2009)

A Sinc Method for an Eigenvalue Problem of a Differential Operator with Periodic Coefficients and Its Comparison with Hill's Method. - Ken'ichiro Tanaka (ITNG, 2013)

A new method for fast computation of cumulative distribution functions by fractional FFT. - Ken'ichiro Tanaka (JSIAM Lett., 2013)

DE-Sinc methods have almost the same convergence property as SE-Sinc methods even for a family of functions fitting the SE-Sinc methods. - Tomoaki Okayama; Ken'ichiro Tanaka; Takayasu Matsuo; Masaaki Sugihara (Numerische Mathematik, 2013)

Error control of a numerical formula for the Fourier transform by Ooura's continuous Euler transform and fractional FFT. - Ken'ichiro Tanaka (J. Comput. Appl. Math., 2014)

Discretizing Distributions with Exact Moments: Error Estimate and Convergence Analysis. - Ken'ichiro Tanaka; Alexis Akira Toda (SIAM J. Numer. Anal., 2015)

Extremely precise position estimation for sensorless control of permanent magnet synchronous motors using all-pass filters and band-pass filters. - Ken'ichiro Tanaka; Atsushi Matsumoto; Masaru Hasegawa (ICIT, 2016)

An optimal approximation formula for functions with singularities. - Ken'ichiro Tanaka; Tomoaki Okayama; Masaaki Sugihara (J. Approx. Theory, 2018)

Construction of conformal maps based on the locations of singularities for improving the double exponential formula. - Shunki Kyoya; Ken'ichiro Tanaka (CoRR, 2019)

Convergence analysis of approximation formulas for analytic functions via duality for potential energy minimization. - Satoshi Hayakawa; Ken'ichiro Tanaka (CoRR, 2019)

Generation of collocation points in the method of fundamental solutions for 2D Laplace's equation. - Hiroaki Hirano; Ken'ichiro Tanaka (JSIAM Lett., 2019)

Improvement of the double exponential formula with conformal maps based on the locations of singularities. - Shunki Kyoya; Ken'ichiro Tanaka (JSIAM Lett., 2019)

Monte Carlo construction of cubature on Wiener space. - Satoshi Hayakawa; Ken'ichiro Tanaka (CoRR, 2020)

Error bounds of potential theoretic numerical integration formulas in weighted Hardy spaces. - Satoshi Hayakawa; Ken'ichiro Tanaka (JSIAM Lett., 2020)

Effective methods for obtaining good points for quadrature in reproducing kernel Hilbert spaces. - Ryunosuke Oshiro; Ken'ichiro Tanaka (JSIAM Lett., 2020)

Counting Integral Points in Polytopes via Numerical Analysis of Contour Integration. - Hiroshi Hirai 001; Ryunosuke Oshiro; Ken'ichiro Tanaka (Math. Oper. Res., 2020)

Generation of point sets by convex optimization for interpolation in reproducing kernel Hilbert spaces. - Ken'ichiro Tanaka (Numer. Algorithms, 2020)

Kernel quadrature by applying a point-wise gradient descent method to discrete energies. - Ken'ichiro Tanaka (CoRR, 2021)

Acceleration of the kernel herding algorithm by improved gradient approximation. - Kazuma Tsuji; Ken'ichiro Tanaka (CoRR, 2021)

Kernel-based interpolation at approximate Fekete points. - Toni Karvonen; Simo Särkkä; Ken'ichiro Tanaka (Numer. Algorithms, 2021)

Correction to: Kernel-based interpolation at approximate Fekete points. - Toni Karvonen; Simo Särkkä; Ken'ichiro Tanaka (Numer. Algorithms, 2021)

Maximum likelihood estimation of the Fisher-Bingham distribution via efficient calculation of its normalizing constant. - Yici Chen; Ken'ichiro Tanaka (Stat. Comput., 2021)

Pairwise Conditional Gradients without Swap Steps and Sparser Kernel Herding. - Kazuma Tsuji; Ken'ichiro Tanaka; Sebastian Pokutta (ICML, 2022)

Yet another DE-Sinc indefinite integration formula. - Tomoaki Okayama; Ken'ichiro Tanaka (CoRR, 2022)

Skeleton structure inherent in discrete-time quantum walks. - Tomoki Yamagami; Etsuo Segawa; Ken'ichiro Tanaka; Takatomo Mihana; André Röhm; Ryoichi Horisaki; Makoto Naruse (CoRR, 2022)

Quadratures over graphs via the Frank-Wolfe method and its variant. - Ryunosuke Oshiro; Ken'ichiro Tanaka (JSIAM Lett., 2022)

Accelerated gradient descent method for functionals of probability measures by new convexity and smoothness based on transport maps. - Ken'ichiro Tanaka (CoRR, 2023)

Error analysis of approximation of derivatives by means of the Sinc approximation for double-exponentially decaying functions. - Tomoaki Okayama; Ken'ichiro Tanaka (JSIAM Lett., 2023)

Computation of the exponential function of matrices by a formula without oscillatory integrals on infinite intervals. - Masato Suzuki; Ken'ichiro Tanaka (CoRR, 2024)

Wavelet characterization of exponentially weighted Besov space with dominating mixed smoothness and its application to function approximation. - Yoshihiro Kogure; Ken'ichiro Tanaka (J. Approx. Theory, 2024)

Analysis of continuous dynamical system models with Hessians derived from optimization methods. - Tomoya Kamijima; Shun Sato 001; Kansei Ushiyama; Takayasu Matsuo; Ken'ichiro Tanaka (JSIAM Lett., 2024)

How Sharp Are Error Bounds? -Lower Bounds on Quadrature Worst-Case Errors for Analytic Functions-. - Takashi Goda; Yoshihito Kazashi; Ken'ichiro Tanaka (SIAM J. Numer. Anal., 2024)