Takeshi TOKUYAMA

A Unified View to Greedy Geometric Routing Algorithms in Ad Hoc Networks
Jinhee CHUN Akiyoshi SHIOURA Truong MINH TIEN Takeshi TOKUYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/06/01
Vol. E97-A  No. 6  pp. 1220-1230
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
geometric routing, ad hoc network, greedy routing, Delaunay graph, 
 Summary | Full Text:PDF(1.2MB)
Efficient Algorithms for Constructing a Pyramid from a Terrain
Jinhee CHUN Kunihiko SADAKANE Takeshi TOKUYAMA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2006/02/01
Vol. E89-D  No. 2  pp. 783-788
Type of Manuscript:  Special Section PAPER (Special Section on Foundations of Computer Science)
Category: Computational Geometry
Keyword: 
algorithm, numeric data, optimal reshaping, unimodal approximation, 
 Summary | Full Text:PDF(350.7KB)
Quantum Algorithms for Intersection and Proximity Problems
Kunihiko SADAKANE Norito SUGAWARA Takeshi TOKUYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/05/01
Vol. E86-A  No. 5  pp. 1113-1119
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
quantum algorithms, computational geometry, intersection, proximity, amplitude amplification, 
 Summary | Full Text:PDF(219.5KB)
On Detecting Digital Line Components in a Binary Image
Tetsuo ASANO Koji OBOKATA Takeshi TOKUYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/05/01
Vol. E84-A  No. 5  pp. 1120-1129
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
algorithm, computer vision, computational geometry, 
 Summary | Full Text:PDF(344.2KB)
FOREWORD
Takeshi TOKUYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/04/25
Vol. E83-A  No. 4  pp. 585-585
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(113.1KB)
Combinatorics on Arrangements and Parametric Matroids: A Bridge between Computational Geometry and Combinatorial Optimization
Takeshi TOKUYAMA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2000/03/25
Vol. E83-D  No. 3  pp. 362-371
Type of Manuscript:  INVITED SURVEY PAPER
Category: Algorithms for Matroids and Related Discrete Systems
Keyword: 
parametric optimization, computational geometry, combinatorics, matroids, 
 Summary | Full Text:PDF(303.5KB)
Topological Walk Revisited
Tetsuo ASANO Takeshi TOKUYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/05/25
Vol. E81-A  No. 5  pp. 751-756
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
algorithm, arrangement of lines, computational geometry, degeneracy, duality transform, 
 Summary | Full Text:PDF(559.3KB)
Interval Finding and Its Application to Data Mining
Takeshi FUKUDA Yasuhiko MORIMOTO Shinichi MORISHITA Takeshi TOKUYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/04/25
Vol. E80-A  No. 4  pp. 620-626
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
computational geometry, algorithms, data mining, interval searching, 
 Summary | Full Text:PDF(615.7KB)
Partial Construction of an Arrangement of Lines and Its Application to Optimal Partitioning of Bichromatic Point Set
Tetsuo ASANO Takeshi TOKUYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/04/25
Vol. E77-A  No. 4  pp. 595-600
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
arrangement of lines, clustering, computational geometry, duality transform, topological walk, 
 Summary | Full Text:PDF(538.1KB)