DEDICATION for Prof. Sueo UENO
Harriet Kagiwada Natsuyama, Yasuko Hasegawa and Sonoyo Mukai

NAI S Journal vol.7 発刊に際してNAIS 支部長

手塚 正義◆Introduction

NASA Goddard Institute for Space Studies, New York. He wasvisiting professor at the University of Southern California, Los

We students of Professor Sueo Ueno dedicate thisAngeles, and at the University of Massachusetts, Amherst.

publication to the living memory of our beloved teacher. We

His editorships included Astrophysics and Space Science andmean by the word, “dedicate,” to give full-heartedly, as Prof.

Applied Mathematics and Computation. He provided active

vol.7の発刊に際してご挨拶申し上げます。これまでの支部長各位が目指

Ueno has dedicated himself to scholarship and teaching. Heleadership in the International Astronomical Union, IEEEされてきた情 報システム（ I n f o r m a t i o n S y s t e m s ）の研 究 領 域の多 様taught us not only complex concepts and techniques andGeoscience and Remote Sensing Society of Tokyo. He wasinspired us to carry out our own research programs, but also

principal investigator of the US-Japan Cooperative Sciencethrough his own example he showed us how to live a fulfilling

Program, Radiative Transfer in Terrestrial Atmosphere. Sueolife. We miss our Professor’s physical presence but his kind

Ueno published the books, Multiple Scattering Processes:

and powerful spirit will always be with us.

Inverse and Direct, 1975, and Terrestrial Radiative Transfer:

情報システム学会日本支部（NAIS）の支部長を2010年11月からお引き受けしている京 都 情 報 大 学 院 大 学 教 授の手 塚です。N A I S J o u r n a l

性 ，ビジネス性 ，グローバル化の重 視という視 点をよりよく発 展させるために，NAISを取り巻く実学環境（新事業応用，社会生活支援などの分野）で具 体 的な連 携テーマを探っていきたいと考えています。最 近の報 道は，Modeling, Computation, and Data Analysis, 1998.

『ジャパンシンドローム』という言 葉をよく取り上げています。世 界に類を見We also dedicate this compilation to the Ueno family: his

ないスピードで進む日本の少子化・高齢化（人口の波）の問題が，廉価な

late wife Misa Kato Ueno, his daughter Sister Cecilia Hisaye,

Sueo Ueno was an internationally renowned astrophysicist

商品ばかりを市場に溢れさせるデフレ・スパイラルや大学新卒者の6割程度

his son Fumihiko, Fumihiko’s son Akihiko, and Akihiko’s sonand information systems scientist. He published two scholarly

しかない就職内定率という雇用不安さを増大させていると分析しています。

Takumi who was born December 2010. They have generously

books on multiple scattering and 270 scientific papers

shared his time and attention with us, his students. To hisin Japanese, French, English and in various internationalfamily we extend our deepest appreciation and our sincerest

journals. He enjoyed close friendships with the world’s leading

best wishes.

scientists such as V.A. Ambarzumian, V. Sobolev, V. Kourganoff,

この状況を打破する処方箋は，付加価値の高い日本固有ブランドの形成です。
その達 成には，世 界トップレベルの技 術 者・研 究 者が切 磋 琢 磨する

S. Chandrasekhar, I. Busbridge, J. Lenoble, R. Bellman, and R.

研究開発環境を国内に用意することを急がねばなりません。NAISにおける学会・研究活動もこれまでの枠を越えて多方面との連携を深め，我々の固有ブランド力を向上させ，差別化を図った厚利小売のビジネスモデルの創造に寄与する道をしっかり歩みたいと考えています。

2 0 1 1 年 1 0月に，元 K C G 情 報 科 学 研 究 所 長で輻 射 輸 達 論の世 界 的権 威の天 体 物 理 学 者 上 野 季 夫 先 生 ，1 1月には京 都 情 報 大 学 院 大 学
第 2 代 学 長・N A I S 前 支 部 長でオペレーションズ・リサーチ研 究の世 界 的権威 長谷川利治先生が永眠されました。kcg.eduグループの教育の展開に多大なるご寄与をいただきました。謹んで哀悼の意を表します。

◆Curriculum Vitae of Sueo Ueno

B.S., 1935; M.S., 1937; Dr. Sci., 1955;

Kalaba.
◆Research

Kyoto Imperial University, Department ofCosmophysics;

It is impossible to capture the scope of the research of Sueo

now Kyoto University, Department of Astronomy

Ueno. Here, we consider the development of his work in

1935-45. Technological Major, Japanese Army, radars andradiative transfer. In 1996 he prepared this list of 13 ofremote sensing
1945-70. Professor, Institute of Astrophysics, Kyoto

his papers which followed upon the work of Ambarzumian,Sobolev, and Chandrasekhar.

University
1970-73. Consultant to RAND Corporation, Santa Monica,
California

1. Invariant imbedding and diffuse reflection from a twodimensional flat layer, 1963.

1973-87. Professor and Director, Information ScienceＡＩＳ（情報システム学会）
は，本部を米国ジョージア州立大学に置き，オーストラリア・ニュージーランド，モロッコ，パキスタン，スロベニア，中国語圏，アイルラン

Laboratory,

2. Invariant imbedding and time-dependent diffuse reflection

Kanazawa Institute of Technology, Kanazawa, Japanof a pencil of radiation by a finite inhomogeneous flat layer - I.

1987-98. Director, Information Science Laboratory,

3. On the identification of systems and the unscrambling ofド，イタリアなどに支部を持つ国際的な学会であり（http：//www.aisnet.org/），

2

Icarus, 1963.

Kyoto School of Computer Science, Kyoto, JapanＩＳ（Information System，情報システム）全般を研究領域としています。特に，

The many honors of Prof. Ueno include Japan’s prestigious

企業における情報システムの管理手法，企業内のＩＴ活動に関する方法論，eビKunsanto Medal, 1983; Jinji Koshin Roku, 1993; Who’s

ジネス／ウェブビジネスについての研究活動などを展開しています。会員は全世

Who in the World, 1999. His research positions included

界で4000名を有し，今後さらなる発展が期待されています。

maitre de recherche, Paris Observatory, Centre National de4. Invariant imbedding and the computation of internal fields

Recherche Scientifique; NSF postdoctoral fellow in astronomy,

for transport processes. Jour. Math. Anal. Appl.,1965.

data. II. An inverse problem in radiative transfer. Proc. Nat.
Acad. Sci. USA, 1965.

3

5. Diffuse transmission of light from a central source throughscattering and transmission function, 1972.

an inhomogeneous spherical shell with isotropic scattering. J.
Math. Phys,. 1968.

A.T. Bharucha-Reid stated in his 1960 book on Markov
processes, “The stochastic approach to the equations of

6. Initial-value methods for integral equations arising inradiative transfer is due to S. Ueno.” We can add that a great

theories of the solar atmosphere. Astrofizika, 1968.

many of the fundamental equations of radiative transfer canA HYBRID ALGORITHM OF FAST INVARIANT IMBEDDING AND
DOUBLING-ADDING METHODS FOR EFFICIENT MULTIPLE SCATTERING CALCULATIONSKiyoshi Kawabata
Department of Physics, College of Science, Tokyo University of Science, Shinjuku-ku, Tokyo 162-8601, Japan
E-mail address : kawabata@rs.kagu.tus.ac.jp

be attributed to S. Ueno.
7. New derivation of the integro-differential equations for
Chandrasekhar’s X and Y functions. J. Math. Phys., 1968.

Prof. Ueno clearly made lasting contributions to the theoryand application of multiple scattering; to remote sensing,

8. Reflection and transmission functions for finite isotropicallysystem identification, and inverse problems; as well as to thescattering atmospheres with specular reflectors. JQSRT, 1969.

analytical and computational aspects of the mathematics ofintegral equations.

9. Some mathematical aspects of multiple scattering in a finite
inhomogeneous slab with anisotropic scattering. Astr. Soc.
Japan., 1970.

In the year 2000, a special issue of Applied Mathematicsand Computation (Vol. 116) honored five decades of researchby Sueo Ueno. A complete list of publications is presented on

10. Radiometric correction for atmospheric and topographic

pp 11-38 of that issue, and the pages of all of his papers haveeffects on Landsat MSS images. Int. J. Remote Sensing, 1988.

been digitized by Kyoto School of Computer Science.

11. Stochastic approach to Cauchy system of Chandrasekhar’◆Summarys planetary problem with specular reflector. Astrophys. Space
Sci., 1988.

Sueo Ueno, the youngest son of the samurai Tokuzo Ueno
and Kuwa Koketsu, certainly made a mark in this world. He

12. Reflection function of linearized Couette flow via

was born on February 26, 1911 and passed away peacefullystochastic approach. ISCIE, 1991.

on October 17, 2011 at age one hundred. He lived throughfour eras, Meiji through Heisei. He helped usher in a new age

13. Searchlight on a target with a diffuse background. J. Math.

of culture and scholarship. He was a man of his time and forPhys., 1993, 1994.

all time.

Here are additional selections from papers published insubsequent years:

We are fortunate to have known Sueo Ueno, an inspiration
to us all. We dedicate our efforts to preserving his legacy.

14. The surface albedo retrieval of mountainous forest areafrom satellite MSS data. Appl. Math. Comput., 1995.
15. The estimation of parameters in time-dependent transport
problems. Comput. Math. Appl., 1999.
16. Cauchy problem for least squares estimation with semidegenerate covariance. Appl. Math. Lett., 1999.
17. Cauchy systems for Fredholm integral equations withparameter imbedding. Appl. Math. Comput., 2000.
Sueo Ueno pioneered in the application of multiple scattering
theory to radiation dosimetry:
18. Invariant imbedding and radiation dosimetry: finite order45