Ryuhei Uehara

Orcid: 0000-0003-0895-3765

Affiliations:
  • Japan Advanced Institute of Science and Technology, Japan


According to our database1, Ryuhei Uehara authored at least 191 papers between 1995 and 2025.

Collaborative distances:
  • Dijkstra number2 of three.
  • Erdős number3 of two.

Timeline

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Bibliography

2025
Gathering on a circle with limited visibility by anonymous oblivious robots.
Theor. Comput. Sci., 2025

2024
Computational complexity of jumping block puzzles.
Theor. Comput. Sci., February, 2024

Efficient enumeration of non-isomorphic distance-hereditary graphs and related graphs.
Discret. Appl. Math., January, 2024

Reconfiguration of vertex-disjoint shortest paths on graphs.
J. Graph Algorithms Appl., 2024

Combinatorial Reconfiguration with Answer Set Programming: Algorithms, Encodings, and Empirical Analysis.
Proceedings of the WALCOM: Algorithms and Computation, 2024

On the Computational Complexity of Generalized Common Shape Puzzles.
Proceedings of the SOFSEM 2024: Theory and Practice of Computer Science, 2024

Computational Complexity of Matching Match Puzzle.
Proceedings of the 12th International Conference on Fun with Algorithms, 2024

2023
Efficient Folding Algorithms for Convex Polyhedra.
Discret. Comput. Geom., December, 2023

Sorting balls and water: Equivalence and computational complexity.
Theor. Comput. Sci., November, 2023

Any platonic solid can transform to another by <i>O</i>(1) refoldings.
Comput. Geom., August, 2023

Mathematical characterizations and computational complexity of anti-slide puzzles.
Theor. Comput. Sci., 2023

Developing a tetramonohedron with minimum cut length.
Comput. Geom., 2023

Overlapping of Lattice Unfolding for Cuboids.
Proceedings of the 35th Canadian Conference on Computational Geometry, 2023

2022
Token shifting on graphs.
Int. J. Comput. Math. Comput. Syst. Theory, October, 2022

Logical Matrix Representations in Map Folding.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., October, 2022

Guest Editors' Foreword.
J. Graph Algorithms Appl., 2022

Cyclic Shift Problems on Graphs.
IEICE Trans. Inf. Syst., 2022

Research on Dissections of a Net of a Cube into Nets of Cubes.
IEICE Trans. Inf. Syst., 2022

Bicolored Path Embedding Problems Inspired by Protein Folding Models.
IEICE Trans. Inf. Syst., 2022

Efficient segment folding is hard.
Comput. Geom., 2022

Ununfoldable polyhedra with 6 vertices or 6 faces.
Comput. Geom., 2022

Compacting Squares: Input-Sensitive In-Place Reconfiguration of Sliding Squares.
Proceedings of the 18th Scandinavian Symposium and Workshops on Algorithm Theory, 2022

Rolling Polyhedra on Tessellations.
Proceedings of the 11th International Conference on Fun with Algorithms, 2022

Quasi-Twisting Convex Polyhedra.
Proceedings of the 34th Canadian Conference on Computational Geometry, 2022

Computational Complexity of One-Dimensional Origami and Its Application to Digital Signature.
Proceedings of the 34th Canadian Conference on Computational Geometry, 2022

Computational Complexity of Flattening Fixed-Angle Orthogonal Chains.
Proceedings of the 34th Canadian Conference on Computational Geometry, 2022

Discretization to Prove the Nonexistence of "Small" Common Unfoldings Between Polyhedra.
Proceedings of the 34th Canadian Conference on Computational Geometry, 2022

2021
Shortest reconfiguration of sliding tokens on subclasses of interval graphs.
Theor. Comput. Sci., 2021

Research on Map Folding with Boundary Order on Simple Fold.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2021

Max-Min 3-Dispersion Problems.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2021

Algorithmic enumeration of surrounding polygons.
Discret. Appl. Math., 2021

Solving Rep-tile by Computers: Performance of Solvers and Analyses of Solutions.
CoRR, 2021

Efficient Enumeration of Non-isomorphic Distance-Hereditary Graphs and Ptolemaic Graphs.
Proceedings of the WALCOM: Algorithms and Computation, 2021

Computational Complexity of Jumping Block Puzzles.
Proceedings of the Computing and Combinatorics - 27th International Conference, 2021

Any Regular Polyhedron Can Transform to Another by O(1) Refoldings.
Proceedings of the 33rd Canadian Conference on Computational Geometry, 2021

2020
Enumeration of nonisomorphic interval graphs and nonisomorphic permutation graphs.
Theor. Comput. Sci., 2020

Minimum Forcing Sets for Single-vertex Crease Pattern.
J. Inf. Process., 2020

Valid Orderings of Layers When Simple-Folding a Map.
J. Inf. Process., 2020

Efficient Algorithm for 2 × <i>n</i> Map Folding with a Box-pleated Crease Pattern.
J. Inf. Process., 2020

Rectangular Unfoldings of Polycubes.
J. Inf. Process., 2020

Efficient Algorithm for Box Folding.
J. Graph Algorithms Appl., 2020

Complexity of the Maximum <i>k</i>-Path Vertex Cover Problem.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2020

Parameterized complexity of independent set reconfiguration problems.
Discret. Appl. Math., 2020

Symmetric assembly puzzles are hard, beyond a few pieces.
Comput. Geom., 2020

Efficient Enumeration of Non-isomorphic Ptolemaic Graphs.
Proceedings of the WALCOM: Algorithms and Computation - 14th International Conference, 2020

Efficient Folding Algorithms for Regular Polyhedra.
Proceedings of the 32nd Canadian Conference on Computational Geometry, 2020

Introduction to Computational Origami - The World of New Computational Geometry
Springer, ISBN: 978-981-15-4469-9, 2020

2019
Sequentially Swapping Colored Tokens on Graphs.
J. Graph Algorithms Appl., 2019

Guest Editors' Foreword.
J. Graph Algorithms Appl., 2019

On Computational Complexity of Pipe Puzzles.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2019

Efficient Enumeration of Flat-Foldable Single Vertex Crease Patterns.
IEICE Trans. Inf. Syst., 2019

Reconfiguring Undirected Paths.
Proceedings of the Algorithms and Data Structures - 16th International Symposium, 2019

On the Complexity of Lattice Puzzles.
Proceedings of the 30th International Symposium on Algorithms and Computation, 2019

Shortest Reconfiguration Sequence for Sliding Tokens on Spiders.
Proceedings of the Algorithms and Complexity - 11th International Conference, 2019

Simple Fold and Cut Problem for Line Segments.
Proceedings of the 31st Canadian Conference on Computational Geometry, 2019

Ecient Segment Folding is Hard.
Proceedings of the 31st Canadian Conference on Computational Geometry, 2019

Rectangular Unfoldings of Polycubes.
Proceedings of the 31st Canadian Conference on Computational Geometry, 2019

First Course in Algorithms Through Puzzles
Springer, ISBN: 978-981-13-3187-9, 2019

2018
Swapping colored tokens on graphs.
Theor. Comput. Sci., 2018

Flat foldings of plane graphs with prescribed angles and edge lengths.
J. Comput. Geom., 2018

Rep-Cubes: Dissection of a Cube into Nets.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2018

Bumpy pyramid folding.
Comput. Geom., 2018

Special Issue on Reconfiguration Problems.
Algorithms, 2018

Complexity of the Maximum k-Path Vertex Cover Problem.
Proceedings of the WALCOM: Algorithms and Computation - 12th International Conference, 2018

Packing Cube Nets into Rectangles with O(1) Holes.
Proceedings of the Discrete and Computational Geometry, Graphs, and Games, 2018

Toward Unfolding Doubly Covered n-Stars.
Proceedings of the Discrete and Computational Geometry, Graphs, and Games, 2018

Computational Complexity of Robot Arm Simulation Problems.
Proceedings of the Combinatorial Algorithms - 29th International Workshop, 2018

Exact Algorithms for the Max-Min Dispersion Problem.
Proceedings of the Frontiers in Algorithmics - 12th International Workshop, 2018

2017
Sankaku-tori: An Old Western-Japanese Game Played on a Point Set.
J. Inf. Process., 2017

Unfolding and Dissection of Multiple Cubes, Tetrahedra, and Doubly Covered Squares.
J. Inf. Process., 2017

Report from EATCS Japan Chapter.
Bull. EATCS, 2017

Complexity of Tiling a Polygon with Trominoes or Bars.
Discret. Comput. Geom., 2017

Ferrers dimension of grid intersection graphs.
Discret. Appl. Math., 2017

Common developments of three incongruent boxes of area 30.
Comput. Geom., 2017

Sliding Tokens on Block Graphs.
Proceedings of the WALCOM: Algorithms and Computation, 2017

Rep-cubes: Unfolding and Dissection of Cubes.
Proceedings of the 29th Canadian Conference on Computational Geometry, 2017

2016
Common Unfolding of Regular Tetrahedron and Johnson-Zalgaller Solid.
J. Graph Algorithms Appl., 2016

Folding a paper strip to minimize thickness.
J. Discrete Algorithms, 2016

The Convex Configurations of "Sei Shonagon Chie no Ita, " Tangram, and Other Silhouette Puzzles with Seven Pieces.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2016

Polynomial-time algorithms for Subgraph Isomorphism in small graph classes of perfect graphs.
Discret. Appl. Math., 2016

Single-Player and Two-Player Buttons & Scissors Games.
CoRR, 2016

A polynomial-time approximation scheme for the geometric unique coverage problem on unit squares.
Comput. Geom., 2016

Shortest Reconfiguration of Sliding Tokens on a Caterpillar.
Proceedings of the WALCOM: Algorithms and Computation - 10th International Workshop, 2016

Sliding Tokens on a Cactus.
Proceedings of the 27th International Symposium on Algorithms and Computation, 2016

Convex Configurations on Nana-kin-san Puzzle.
Proceedings of the 8th International Conference on Fun with Algorithms, 2016

2015
Linear-time algorithm for sliding tokens on trees.
Theor. Comput. Sci., 2015

Secure Sets and Defensive Alliances in Graphs: A Faster Algorithm and Improved Bounds.
IEICE Trans. Inf. Syst., 2015

Swapping Colored Tokens on Graphs.
Proceedings of the Algorithms and Data Structures - 14th International Symposium, 2015

Competitive Diffusion on Weighted Graphs.
Proceedings of the Algorithms and Data Structures - 14th International Symposium, 2015

Single-Player and Two-Player Buttons & Scissors Games - (Extended Abstract).
Proceedings of the Discrete and Computational Geometry and Graphs - 18th Japan Conference, 2015

Box Pleating is Hard.
Proceedings of the Discrete and Computational Geometry and Graphs - 18th Japan Conference, 2015

Sliding Token on Bipartite Permutation Graphs.
Proceedings of the Algorithms and Computation - 26th International Symposium, 2015

2014
A 4.31-approximation for the geometric unique coverage problem on unit disks.
Theor. Comput. Sci., 2014

UNO is hard, even for a single player.
Theor. Comput. Sci., 2014

Base-object location problems for base-monotone regions.
Theor. Comput. Sci., 2014

The height of random <i>k</i>-trees and related branching processes.
Random Struct. Algorithms, 2014

Computational Complexity and an Integer Programming Model of Shakashaka.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2014

Computational Complexity of Piano-Hinged Dissections.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2014

The graph isomorphism problem on geometric graphs.
Discret. Math. Theor. Comput. Sci., 2014

Cell-Paths in Mono- and Bichromatic Line Arrangements in the Plane.
Discret. Math. Theor. Comput. Sci., 2014

Computational Complexity of Competitive Diffusion on (Un)weighted Graphs.
CoRR, 2014

On the Parameterized Complexity for Token Jumping on Graphs.
Proceedings of the Theory and Applications of Models of Computation, 2014

Intersection Dimension of Bipartite Graphs.
Proceedings of the Theory and Applications of Models of Computation, 2014

Polynomial-Time Algorithm for Sliding Tokens on Trees.
Proceedings of the Algorithms and Computation - 25th International Symposium, 2014

Depth-First Search Using O(n) Bits.
Proceedings of the Algorithms and Computation - 25th International Symposium, 2014

Sankaku-Tori: An Old Western-Japanese Game Played on a Point Set.
Proceedings of the Fun with Algorithms - 7th International Conference, 2014

The Convex Configurations of "Sei Shonagon Chie no Ita" and Other Dissection Puzzles.
Proceedings of the 26th Canadian Conference on Computational Geometry, 2014

2013
The complexity of the stamp folding problem.
Theor. Comput. Sci., 2013

Efficient algorithms for a simple network design problem.
Networks, 2013

Coverage with k-transmitters in the presence of obstacles.
J. Comb. Optim., 2013

Common Developments of Three Incongruent Orthogonal Boxes.
Int. J. Comput. Geom. Appl., 2013

Reconstruction Algorithms for Permutation Graphs and Distance-Hereditary Graphs.
IEICE Trans. Inf. Syst., 2013

The Japanese Chapter.
Bull. EATCS, 2013

Bounding the Number of Reduced Trees, Cographs, and Series-Parallel Graphs by Compression.
Discret. Math. Algorithms Appl., 2013

Tractabilities and Intractabilities on Geometric Intersection Graphs.
Algorithms, 2013

Route-Enabling Graph Orientation Problems.
Algorithmica, 2013

Base Location Problems for Base-Monotone Regions.
Proceedings of the WALCOM: Algorithms and Computation, 7th International Workshop, 2013

Zipper Unfoldability of Domes and Prismoids.
Proceedings of the 25th Canadian Conference on Computational Geometry, 2013

Cell-Paths in Mono- and Bichromatic Line Arrangements in the Plane.
Proceedings of the 25th Canadian Conference on Computational Geometry, 2013

Variations on Instant Insanity.
Proceedings of the Space-Efficient Data Structures, 2013

2012
NP-completeness of generalized Kaboozle.
J. Inf. Process., 2012

Random generation and enumeration of bipartite permutation graphs.
J. Discrete Algorithms, 2012

Faster computation of the Robinson-Foulds distance between phylogenetic networks.
Inf. Sci., 2012

Ghost chimneys.
Int. J. Comput. Geom. Appl., 2012

Report from the Japanese Chapter.
Bull. EATCS, 2012

On bipartite powers of bigraphs.
Discret. Math. Theor. Comput. Sci., 2012

Bipartite Permutation Graphs are reconstructible.
Discret. Math. Algorithms Appl., 2012

On Complexity of Flooding Games on Graphs with Interval Representations
CoRR, 2012

Any Monotone Function Is Realized by Interlocked Polygons.
Algorithms, 2012

On Complexity of Flooding Games on Graphs with Interval Representations.
Proceedings of the Computational Geometry and Graphs - Thailand-Japan Joint Conference, 2012

Common Developments of Three Different Orthogonal Boxes.
Proceedings of the 24th Canadian Conference on Computational Geometry, 2012

Packing Trominoes is NP-Complete, #P-Complete and ASP-Complete.
Proceedings of the 24th Canadian Conference on Computational Geometry, 2012

Covering Points with Disjoint Unit Disks.
Proceedings of the 24th Canadian Conference on Computational Geometry, 2012

2011
On the complexity of reconfiguration problems.
Theor. Comput. Sci., 2011

The Voronoi game on graphs and its complexity.
J. Graph Algorithms Appl., 2011

Hardness Results and an Exact Exponential Algorithm for the Spanning Tree Congestion Problem.
J. Graph Algorithms Appl., 2011

Guest Editor's Foreword.
J. Graph Algorithms Appl., 2011

Voronoi Game on a Path.
IEICE Trans. Inf. Syst., 2011

Algorithmic Folding Complexity.
Graphs Comb., 2011

Complexity of the Stamp Folding Problem.
Proceedings of the Combinatorial Optimization and Applications, 2011

On covering of any point configuration by disjoint unit disks.
Proceedings of the 23rd Annual Canadian Conference on Computational Geometry, 2011

Common Developments of Several Different Orthogonal Boxes.
Proceedings of the 23rd Annual Canadian Conference on Computational Geometry, 2011

2010
Efficient enumeration of all ladder lotteries and its application.
Theor. Comput. Sci., 2010

Enumeration of the perfect sequences of a chordal graph.
Theor. Comput. Sci., 2010

Reconstruction of interval graphs.
Theor. Comput. Sci., 2010

Scale Free Properties of Random <i>k</i>-Trees.
Math. Comput. Sci., 2010

Random Generation and Enumeration of Proper Interval Graphs.
IEICE Trans. Inf. Syst., 2010

The complexity of UNO
CoRR, 2010

Reconstruction Algorithm for Permutation Graphs.
Proceedings of the WALCOM: Algorithms and Computation, 4th International Workshop, 2010

UNO Is Hard, Even for a Single Player.
Proceedings of the Fun with Algorithms, 5th International Conference, 2010

Kaboozle Is NP-complete, Even in a Strip.
Proceedings of the Fun with Algorithms, 5th International Conference, 2010

Coverage with <i>k</i>-Transmitters in the Presence of Obstacles.
Proceedings of the Combinatorial Optimization and Applications, 2010

On stretch minimization problem on unit strip paper.
Proceedings of the 22nd Annual Canadian Conference on Computational Geometry, 2010

Any monotone boolean function can be realized by interlocked polygons.
Proceedings of the 22nd Annual Canadian Conference on Computational Geometry, 2010

2009
Scale free interval graphs.
Theor. Comput. Sci., 2009

A New Approach to Graph Recognition and Applications to Distance-Hereditary Graphs.
J. Comput. Sci. Technol., 2009

Laminar structure of ptolemaic graphs with applications.
Discret. Appl. Math., 2009

Counting the Number of Matchings in Chordal and Chordal Bipartite Graph Classes.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 2009

Algorithmic Folding Complexity.
Proceedings of the Algorithms and Computation, 20th International Symposium, 2009

How to make a picturesque maze.
Proceedings of the 21st Annual Canadian Conference on Computational Geometry, 2009

2008
Counting the number of independent sets in chordal graphs.
J. Discrete Algorithms, 2008

Special Section on Discrete Mathematics and Its Applications.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2008

Longest Path Problems on Ptolemaic Graphs.
IEICE Trans. Inf. Syst., 2008

Simple Geometrical Intersection Graphs.
Proceedings of the WALCOM: Algorithms and Computation, Second International Workshop, 2008

Bandwidth of Bipartite Permutation Graphs.
Proceedings of the Algorithms and Computation, 19th International Symposium, 2008

Polygons Folding to Plural Incongruent Orthogonal Boxes.
Proceedings of the 20th Annual Canadian Conference on Computational Geometry, 2008

Inverting Linkages with Stretch.
Proceedings of the 20th Annual Canadian Conference on Computational Geometry, 2008

2007
Linear structure of bipartite permutation graphs and the longest path problem.
Inf. Process. Lett., 2007

On Computing Longest Paths in Small Graph Classes.
Int. J. Found. Comput. Sci., 2007

Tree Spanners for Bipartite Graphs and Probe Interval Graphs.
Algorithmica, 2007

Efficient Algorithms for Airline Problem.
Proceedings of the Theory and Applications of Models of Computation, 2007

2006
The Complexity of a Pop-Up Book.
Proceedings of the 18th Annual Canadian Conference on Computational Geometry, 2006

2005
Graph isomorphism completeness for chordal bipartite graphs and strongly chordal graphs.
Discret. Appl. Math., 2005

Linear-Time Counting Algorithms for Independent Sets in Chordal Graphs.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 2005

Laminar Structure of Ptolemaic Graphs and Its Applications.
Proceedings of the Algorithms and Computation, 16th International Symposium, 2005

2004
A double classification tree search algorithm for index SNP selection.
BMC Bioinform., 2004

Efficient Algorithms for the Longest Path Problem.
Proceedings of the Algorithms and Computation, 15th International Symposium, 2004

Canonical Data Structure for Interval Probe Graphs.
Proceedings of the Algorithms and Computation, 15th International Symposium, 2004

2002
Linear Time Algorithms on Chordal Bipartite and Strongly Chordal Graphs.
Proceedings of the Automata, Languages and Programming, 29th International Colloquium, 2002

Tighter bounds on the genus of nonorthogonal polyhedra built from rectangles.
Proceedings of the 14th Canadian Conference on Computational Geometry, 2002

2000
Identification of Partial Disjunction, Parity, and Threshold Functions.
Theor. Comput. Sci., 2000

Parallel approximation algorithms for maximum weighted matching in general graphs.
Inf. Process. Lett., 2000

Paralle Approximation Algorithms for Maximum Weighted Matching in General Graphs.
Proceedings of the Theoretical Computer Science, 2000

1999
Fast <i>RNC</i> and <i>NC</i> Algorithms for Maximal Path Sets.
Theor. Comput. Sci., 1999

A Measure for the Lexicographically First Maximal Independent Set Problem and Its Limits.
Int. J. Found. Comput. Sci., 1999

Another Measure for the Lexicographically First Maximal Subgraph Problems and Its Threshold Value on a Random Graph.
Proceedings of the 1999 International Symposium on Parallel Architectures, 1999

1997
Collapse of PP with a Semi-Random Source to BPP.
Inf. Process. Lett., 1997

A Measure of Parallelization for the Lexicographically First Maximal Subgraph Problems.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 1997

1996
Optimal attribute-efficient learning of disjunction, parity, and threshold functions
Electron. Colloquium Comput. Complex., 1996

Fast RNC and NC Algorithms for Finding a Maximal Set of Paths with an Application.
Proceedings of the Computing and Combinatorics, Second Annual International Conference, 1996

1995
Efficient Simulations by a Biased Coin.
Inf. Process. Lett., 1995


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