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- Ziro MAKI, Masami NAKAGAWA, Shoichi SAKATA
- 2005

A particle mixture theory of neutrino is proposed. assuming the existence of two kinds of neutrinos. Based on the neutrino-mixture theory, a possible unified model of elementary particles is constructed by generalizing the Sakata-Nagoya model.*> Our scheme gives a natural explanation of smallness of leptonic decay rate of hyperons as well as the subtle… (More)

This paper describes an algorithm to improve a computational cost for estimation using the Kriging method with a large number of sampling data. An improved formula to compute the weighting coefficient for Kriging estimation is proposed. The Sherman–Morrison–Woodbury formula is applied to solving an approximated simultaneous equation to determine a weighting… (More)

- Shoichi Sakata
- 2005

Recently, Nishijima-Gell-Mann's rule 1 l for the systematization of new particles has achieved a great success to account for various facts obtained from the experiments with cosmic rays and with high energy accelerators. Nevertheless, it would be desirable from the theoretical standpoint * The content of this letter was read before the annual meeting of… (More)

- Hajime Matsui, S. Sakata, M. Kurihara, Seiichi Mita
- IEEE Transactions on Information Theory
- 2005

We construct a two-dimensional systolic array implementing the Berlekamp-Massey-Sakata (BMS) algorithm to provide error-locator polynomials for codes on selected algebraic curves. This array is constructed by introducing some new polynomials in order to increase the parallelism of the algorithm. The introduced polynomials are used in the majority logic… (More)

- Mitsuo TAKETANI, Shoichi SAKATA
- 2007

- M. Fujisawa, S. Sakata
- Proceedings. International Symposium on…
- 2005

In this paper, we propose a class of regular LDPC codes from a cyclic difference family, which is a kind of combinatorial design. These LDPC codes have no 4-cycles, i.e., cycles of length 4. We clarify the conditions on which these codes with column weight 3 have no 6-cycles and discuss their minimum distance. Finally, we show the performance of the… (More)

- Yuzhen Li, Takashi Imaizumi, S. Sakata, H. Sekiya, Jihong Guan
- 2008 Japan-China Joint Workshop on Frontier of…
- 2008

The Geography Markup Language (GML) has been introduced to standardize the representation of geographical data in Extensible Markup Language (XML), which makes the exchanging and sharing of geographical information easier. As GML becomes the geospatial language of the Web, the compression of GML files becomes a new challenge to the compression research… (More)

- S. Sakata
- Proceedings. International Symposium on…
- 2005

We present a simple modification of the Berlekamp-Massey (BM) algorithm by which one can solve the problem solved by the 'multiple-sequence BM algorithm' [Feng and Tzeng, IEEE IT Trans. 1989, 1991]. The original BM algorithm which we call 'single-sequence BM algorithm' finds a simplest linear feedback shift register (LFSR) capable of generating a given… (More)

- Shoichi Sakata
- 2008

I would first like to thank the Royal Swedish Academy of Sciences and the Nobel Foundation for awarding me this honour, of which I had never even dreamt. I was born in 1940, the son of a furniture craftsman in the city of Nagoya, in Japan. My father wanted to change his job and was taking a correspondence course to become an electrical engineer, while he… (More)