Yota Otachi

Orcid: 0000-0002-0087-853X

Affiliations:
  • Nagoya University, Graduate School of Informatics, Japan


According to our database1, Yota Otachi authored at least 121 papers between 2007 and 2025.

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

Timeline

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Bibliography

2025
An improved spectral lower bound of treewidth.
Inf. Process. Lett., 2025

2024
Algorithmic Meta-Theorems for Combinatorial Reconfiguration Revisited.
Algorithmica, November, 2024

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

Extended MSO Model Checking via Small Vertex Integrity.
Algorithmica, January, 2024

Grouped domination parameterized by vertex cover, twin cover, and beyond.
Theor. Comput. Sci., 2024

Collecting Balls on a Line by Robots with Limited Energy.
IEICE Trans. Inf. Syst., 2024

On a Spectral Lower Bound of Treewidth.
IEICE Trans. Inf. Syst., 2024

Finding a Reconfiguration Sequence between Longest Increasing Subsequences.
IEICE Trans. Inf. Syst., 2024

Parameterized Spanning Tree Congestion.
CoRR, 2024

Dichotomies for Tree Minor Containment with Structural Parameters.
Proceedings of the WALCOM: Algorithms and Computation, 2024

On the Complexity of List H-Packing for Sparse Graph Classes.
Proceedings of the WALCOM: Algorithms and Computation, 2024

Structural Parameterizations of Vertex Integrity.
Proceedings of the WALCOM: Algorithms and Computation, 2024

Orientable Burning Number of Graphs.
Proceedings of the WALCOM: Algorithms and Computation, 2024

Finding Induced Subgraphs from Graphs with Small Mim-Width.
Proceedings of the 19th Scandinavian Symposium and Workshops on Algorithm Theory, 2024

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

Reconfiguration of cliques in a graph.
Discret. Appl. Math., July, 2023

Reconfiguring (non-spanning) arborescences.
Theor. Comput. Sci., 2023

Minimum Consistent Subset for Trees Revisited.
CoRR, 2023

Sequentially Swapping Tokens: Further on Graph Classes.
Proceedings of the SOFSEM 2023: Theory and Practice of Computer Science, 2023

A Framework to Design Approximation Algorithms for Finding Diverse Solutions in Combinatorial Problems.
Proceedings of the Thirty-Seventh AAAI Conference on Artificial Intelligence, 2023

2022
Grundy Distinguishes Treewidth from Pathwidth.
SIAM J. Discret. Math., September, 2022

Exploring the gap between treedepth and vertex cover through vertex integrity.
Theor. Comput. Sci., 2022

An Improved Deterministic Parameterized Algorithm for Cactus Vertex Deletion.
Theory Comput. Syst., 2022

Finding shortest non-separating and non-disconnecting paths.
CoRR, 2022

Linear-Time Recognition of Double-Threshold Graphs.
Algorithmica, 2022

Parameterized Complexity of Graph Burning.
Algorithmica, 2022

Parameterized Complexity of (A, ℓ )-Path Packing.
Algorithmica, 2022

Reconfiguration of Regular Induced Subgraphs.
Proceedings of the WALCOM: Algorithms and Computation, 2022

Independent Set Reconfiguration on Directed Graphs.
Proceedings of the 47th International Symposium on Mathematical Foundations of Computer Science, 2022

Parameterized Complexity of Non-Separating and Non-Disconnecting Paths and Sets.
Proceedings of the 47th International Symposium on Mathematical Foundations of Computer Science, 2022

Computing Diverse Shortest Paths Efficiently: A Theoretical and Experimental Study.
Proceedings of the Thirty-Sixth AAAI Conference on Artificial Intelligence, 2022

2021
Token Sliding on Split Graphs.
Theory Comput. Syst., 2021

Longest common subsequence in sublinear space.
Inf. Process. Lett., 2021

Low-congestion shortcut and graph parameters.
Distributed Comput., 2021

On the security number of the Cartesian product of graphs.
Discret. Appl. Math., 2021

Distributed Reconfiguration of Spanning Trees.
Proceedings of the Stabilization, Safety, and Security of Distributed Systems, 2021

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

Reconfiguring Directed Trees in a Digraph.
Proceedings of the Computing and Combinatorics - 27th International Conference, 2021

Finding Diverse Trees, Paths, and More.
Proceedings of the Thirty-Fifth AAAI Conference on Artificial Intelligence, 2021

2020
Efficient enumeration of maximal <i>k</i>-degenerate induced subgraphs of a chordal graph.
Theor. Comput. Sci., 2020

Space-Efficient Algorithms for Longest Increasing Subsequence.
Theory Comput. Syst., 2020

<i>K</i><sub>3</sub> Edge Cover Problem in a Wide Sense.
J. Inf. Process., 2020

Parameterized Complexity of Safe Set.
J. Graph Algorithms Appl., 2020

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

Parameterized Orientable Deletion.
Algorithmica, 2020

Subgraph Isomorphism on Graph Classes that Exclude a Substructure.
Algorithmica, 2020

Independent Set Reconfiguration Parameterized by Modular-Width.
Algorithmica, 2020

Sublinear-Space Lexicographic Depth-First Search for Bounded Treewidth Graphs and Planar Graphs.
Proceedings of the 47th International Colloquium on Automata, Languages, and Programming, 2020

A Survey on Spanning Tree Congestion.
Proceedings of the Treewidth, Kernels, and Algorithms, 2020

Hedonic Seat Arrangement Problems.
Proceedings of the 19th International Conference on Autonomous Agents and Multiagent Systems, 2020

2019
Reconfiguration of colorable sets in classes of perfect graphs.
Theor. Comput. Sci., 2019

On structural parameterizations of firefighting.
Theor. Comput. Sci., 2019

How Bad is the Freedom to Flood-It?
J. Graph Algorithms Appl., 2019

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

A lower bound on opaque sets.
Comput. Geom., 2019

On the Classes of Interval Graphs of Limited Nesting and Count of Lengths.
Algorithmica, 2019

Subgraph Isomorphism on Graph Classes that Exclude a Substructure.
Proceedings of the Algorithms and Complexity - 11th International Conference, 2019

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

Vertex deletion problems on chordal graphs.
Theor. Comput. Sci., 2018

Safe sets in graphs: Graph classes and structural parameters.
J. Comb. Optim., 2018

A faster parameterized algorithm for Pseudoforest Deletion.
Discret. Appl. Math., 2018

Degree-Constrained Orientation of Maximum Satisfaction: Graph Classes and Parameterized Complexity.
Algorithmica, 2018

Induced Minor Free Graphs: Isomorphism and Clique-Width.
Algorithmica, 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
Hitori Numbers.
J. Inf. Process., 2017

Alliances in graphs of bounded clique-width.
Discret. Appl. Math., 2017

Thin strip graphs.
Discret. Appl. Math., 2017

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

Extending Partial Representations of Interval Graphs.
Algorithmica, 2017

Extending Partial Representations of Proper and Unit Interval Graphs.
Algorithmica, 2017

Efficient Enumeration of Maximal k-Degenerate Subgraphs in a Chordal Graph.
Proceedings of the Computing and Combinatorics - 23rd International Conference, 2017

2016
Finding a chain graph in a bipartite permutation graph.
Inf. Process. Lett., 2016

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

On the treewidth of toroidal grids.
Discret. Appl. Math., 2016

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

Safe Sets in Graphs: Graph Classes and Structural Parameters.
Proceedings of the Combinatorial Optimization and Applications, 2016

2015
Extending partial representations of subclasses of chordal graphs.
Theor. Comput. Sci., 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

Completely independent spanning trees in (partial) <i>k</i>-trees.
Discuss. Math. Graph Theory, 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

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

2014
Efficient algorithms for network localization using cores of underlying graphs.
Theor. Comput. Sci., 2014

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

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

Approximating the path-distance-width for AT-free graphs and graphs in related classes.
Discret. Appl. Math., 2014

Lower bounds for treewidth of product graphs.
Discret. Appl. Math., 2014

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

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

Reduction Techniques for Graph Isomorphism in the Context of Width Parameters.
Proceedings of the Algorithm Theory - SWAT 2014, 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

2013
The path-distance-width of hypercubes.
Discuss. Math. Graph Theory, 2013

Linear-time Algorithm for Partial Representation Extension of Interval Graphs.
CoRR, 2013

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

Isomorphism on Subgraph-Closed Graph Classes: A Complexity Dichotomy and Intermediate Graph Classes.
Proceedings of the Algorithms and Computation - 24th International Symposium, 2013

Bounded Representations of Interval and Proper Interval Graphs.
Proceedings of the Algorithms and Computation - 24th International Symposium, 2013

2012
Efficient enumeration of ordered trees with k leaves.
Theor. Comput. Sci., 2012

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

Enumerating All Rooted Trees Including <i>k</i> Leaves.
IEICE Trans. Inf. Syst., 2012

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

Subgraph isomorphism in graph classes.
Discret. Math., 2012

Parameterized Complexity of the Spanning Tree Congestion Problem.
Algorithmica, 2012

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

Isomorphism for Graphs of Bounded Connected-Path-Distance-Width.
Proceedings of the Algorithms and Computation - 23rd International Symposium, 2012

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

Spanning tree congestion of rook's graphs.
Discuss. Math. Graph Theory, 2011

Bandwidth and pathwidth of three-dimensional grids.
Discret. Math., 2011

Spanning tree congestion of k-outerplanar graphs.
Discret. Math., 2011

On spanning tree congestion of Hamming graphs
CoRR, 2011

Approximability of the Path-Distance-Width for AT-free Graphs.
Proceedings of the Graph-Theoretic Concepts in Computer Science, 2011

2010
The carving-width of generalized hypercubes.
Discret. Math., 2010

Complexity Results for the Spanning Tree Congestion Problem.
Proceedings of the Graph Theoretic Concepts in Computer Science, 2010

2009
On spanning tree congestion of graphs.
Discret. Math., 2009

Security number of grid-like graphs.
Discret. Appl. Math., 2009

Efficient Enumeration of Ordered Trees with kLeaves (Extended Abstract).
Proceedings of the WALCOM: Algorithms and Computation, Third International Workshop, 2009

2008
A lower bound for the vertex boundary-width of complete k-ary trees.
Discret. Math., 2008

An improved algorithm for the longest induced path problem on k-chordal graphs.
Discret. Appl. Math., 2008

2007
Relationships between the class of unit grid intersection graphs and other classes of bipartite graphs.
Discret. Appl. Math., 2007


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