Atsushi Takizawa

Theoretical and Practical Issues of Evacuation Planning in Urban Areas (2008)

Naoyuki Kamiyama, Naoki Katoh, Atsushi Takizawa

In December 2004, the Sumatra-Andaman earthquake occurred. It triggered tsunamis, and tragedy fell upon many people. Not only earthquakes but also diverse disasters occurred and caused serious...

Arc-disjoint in-trees in directed graphs (2008)

Kamiyama, Naoyuki, Katoh, Naoki, Takizawa, Atsushi

Proceedings of the Nineteenth Annual ACM-SIAM Symposium on Dis crete Algorithms, San Francisco, CA, January 20-22, 2008 ; This symposium was sponsored by the ACM Special Interest Group on Algorithms...

An Efficient Algorithm for the Evacuation Problem in a Certain Class of a Network with Uniform Path-Lengths (Algorithmic Aspects in Information and Management) (2008)

Kamiyama, Naoyuki, Katoh, Naoki, Takizawa, Atsushi

Algorithmic aspects in information and management : Third International Conference, AAIM 2007, Portland, OR, USA, June 6-8, 2007 : proceedings : (Lecture notes in computer science ; 4508)

Multi-Objective Optimization of Spatial Truss Structures by Genetic Algorithm (2007)

Yasuhiro Kida, Hiroshi Kawamura, Akinori Tani, Atsushi Takizawa

Abstract. In this paper, architectural constructions composed of spatial truss units are considered by using a new technique of artificial life. Such spatial truss structure has flexibility and...

Applying Graph Mining to Discover Substructures of Room Layouts which Affect the Rent of Apartments (2007)

Takizawa, Atsushi, Yoshida, Kazuma, Katoh, Naoki

2007 IEEE International Conference on Systems, Man and Cybernetics, Mo ntreal, QC, Canada, 7-10 October 2007. : IEEE catalog number: CFP07SMC-PRT

An Efficient Algorithm for Evacuation Problems in Dynamic Network Flows with Uniform Arc Capacity (Algorithmic aspects in information and management) (2006)

Kamiyama, Naoyuki, Katoh, Naoki, Takizawa, Atsushi

Algorithmic aspects in information and management : Second International Conference, AAIM 2006, Hong Kong, China, June 20-22, 2006 : proceedings : (Lecture notes in computer science ; 4041)

An Efficient Algorithm for Evacuation Problem in Dynamic Network Flows with Uniform Arc Capacity (2006)

KAMIYAMA, Naoyuki, KATOH, Naoki, TAKIZAWA, Atsushi

In this paper, we consider the quickest flow problem in a network which consists of a directed graph with capacities and transit times on its arcs. We present an O(n log n) time algorithm for the...