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ORCIDRhyd Lewis
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- affiliation: Cardiff University, School of Mathematics, UK
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2020 – today
- 2025
[j34]Padraig Corcoran, Rhyd Lewis
:
A user-centric model of connectivity in street networks. Comput. Oper. Res. 173: 106846 (2025)- 2024
- [j33]Padraig Corcoran, Rhyd Lewis:
Optimisation of livestock routing on farms. Comput. Ind. Eng. 188: 109882 (2024) - [j32]Rhyd Lewis, Padraig Corcoran:
Fast Algorithms for Computing Fixed-Length Round Trips in Real-World Street Networks. SN Comput. Sci. 5(7): 868 (2024) - [c17]Lukas Dijkstra, Andrei Gagarin, Padraig Corcoran, Rhyd Lewis:
Digraphs and k-Domination Models for Facility Location Problems in Road Networks: Greedy Heuristics. INOC 2024: 22-27 - [c16]Daniel Hambly, Rhyd Lewis, Padraig Corcoran:
Determining Fixed-Length Paths in Directed and Undirected Edge-Weighted Graphs. SEA 2024: 15:1-15:11 - [i4]Mohammad Hadi Shekarriz, Dhananjay R. Thiruvady, Asef Nazari, Rhyd Lewis:
Soft happy colourings and community structure of networks. CoRR abs/2405.15663 (2024) - [i3]Lukas Dijkstra, Andrei Gagarin, Padraig Corcoran, Rhyd Lewis:
Greedy and randomized heuristics for optimization of k-domination models in digraphs and road networks. CoRR abs/2409.04226 (2024) - 2023
- [j31]Rhyd Lewis, Padraig Corcoran, Andrei V. Gagarin:
Methods for determining cycles of a specific length in undirected graphs with edge weights. J. Comb. Optim. 46(5): 29 (2023) - [j30]Monique Sciortino, Rhyd Lewis, Jonathan M. Thompson:
A School Bus Routing Heuristic Algorithm Allowing Heterogeneous Fleets and Bus Stop Selection. SN Comput. Sci. 4(1): 74 (2023) - [i2]Rhyd Lewis:
A Comparison of Dijkstra's Algorithm Using Fibonacci Heaps, Binary Heaps, and Self-Balancing Binary Trees. CoRR abs/2303.10034 (2023) - 2022
- [j29]Asyl L. Hawa, Rhyd Lewis, Jonathan M. Thompson:
Exact and approximate methods for the score-constrained packing problem. Eur. J. Oper. Res. 302(3): 847-859 (2022) - [j28]Rhyd Lewis, Padraig Corcoran:
Finding fixed-length circuits and cycles in undirected edge-weighted graphs: an application with street networks. J. Heuristics 28(3): 259-285 (2022) - [j27]Dhananjay R. Thiruvady, Rhyd Lewis:
Recombinative approaches for the maximum happy vertices problem. Swarm Evol. Comput. 75: 101188 (2022) - [c15]Fiona Carroll, Rhyd Lewis:
Internet Security Aesthetics: Can internet transparency afford social trust? ICCCN 2022: 1-2 - [c14]Rhyd Lewis, Fiona Carroll:
Exact Algorithms for Finding Fixed-Length Cycles in Edge-Weighted Graphs. ICCCN 2022: 1-2 - 2021
- [j26]Rhyd Lewis, Dhananjay R. Thiruvady, Kerri Morgan:
The maximum happy induced subgraph problem: Bounds and algorithms. Comput. Oper. Res. 126: 105114 (2021) - [c13]Monique Sciortino, Rhyd Lewis, Jonathan M. Thompson:
A Heuristic Algorithm for School Bus Routing with Bus Stop Selection. EvoCOP 2021: 202-218 - 2020
- [j25]Dhananjay R. Thiruvady, Rhyd Lewis, Kerri Morgan:
Tackling the maximum happy vertices problem in large networks. 4OR 18(4): 507-527 (2020) - [j24]Rhyd Lewis:
Algorithms for Finding Shortest Paths in Networks with Vertex Transfer Penalties. Algorithms 13(11): 269 (2020) - [j23]Rhyd Lewis:
Editorial for the Special Issue on "Algorithms for Graphs and Networks". Algorithms 13(11): 292 (2020) - [j22]Paulo Neis, Rhyd Lewis:
Evaluating the influence of parameter setup on the performance of heuristics for the graph colouring problem. Int. J. Metaheuristics 7(4): 352-378 (2020) - [j21]Wasin Padungwech, Jonathan M. Thompson, Rhyd Lewis:
Effects of update frequencies in a dynamic capacitated arc routing problem. Networks 76(4): 522-538 (2020) - [j20]Rhyd Lewis, Tom Anderson, Fiona Carroll:
Can School Enrolment and Performance be Improved by Maximizing Students' Sense of Choice in Elective Subjects? J. Learn. Anal. 7(1): 75-87 (2020) - [c12]Rhyd Lewis:
A Heuristic Algorithm for Finding Attractive Fixed-Length Circuits in Street Maps. ICCL 2020: 384-395 - [c11]Rhyd Lewis:
A Shortest Path Algorithm for Graphs Featuring Transfer Costs at Their Vertices. ICCL 2020: 539-552 - [i1]Rhyd Lewis:
Who is the Centre of the Movie Universe? Using Python and NetworkX to Analyse the Social Network of Movie Stars. CoRR abs/2002.11103 (2020)
2010 – 2019
- 2019
- [j19]Rhyd Lewis, Dhananjay R. Thiruvady, Kerri Morgan:
Finding happiness: An analysis of the maximum happy vertices problem. Comput. Oper. Res. 103: 265-276 (2019) - 2018
- [j18]Bradley Hardy, Rhyd Lewis, Jonathan M. Thompson:
Tackling the edge dynamic graph colouring problem with and without future adjacency information. J. Heuristics 24(3): 321-343 (2018) - [j17]Rhyd Lewis, Kate Smith-Miles:
A heuristic algorithm for finding cost-effective solutions to real-world school bus routing problems. J. Discrete Algorithms 52-53: 2-17 (2018) - [c10]Asyl L. Hawa, Rhyd Lewis, Jonathan M. Thompson:
Heuristics for the Score-Constrained Strip-Packing Problem. COCOA 2018: 449-462 - 2017
- [j16]Rhyd Lewis, Penny L. Holborn:
How to Pack Trapezoids: Exact and Evolutionary Algorithms. IEEE Trans. Evol. Comput. 21(3): 463-476 (2017) - [c9]Rhydian Lewis, Kate Smith-Miles, Kyle Phillips:
The School Bus Routing Problem: An Analysis and Algorithm. IWOCA 2017: 287-298 - 2016
- [j15]Rhyd Lewis, Fiona Carroll:
Creating seating plans: a practical application. J. Oper. Res. Soc. 67(11): 1353-1362 (2016) - [c8]Bradley Hardy, Rhyd Lewis, Jonathan M. Thompson:
Modifying Colourings Between Time-Steps to Tackle Changes in Dynamic Random Graphs. EvoCOP 2016: 186-201 - [c7]Wasin Padungwech, Jonathan M. Thompson, Rhyd Lewis:
Investigating Edge-Reordering Procedures in a Tabu Search Algorithm for the Capacitated Arc Routing Problem. HM 2016: 62-74 - 2015
- [j14]Rhydian Lewis, Jonathan M. Thompson:
Analysing the effects of solution space connectivity with an effective metaheuristic for the course timetabling problem. Eur. J. Oper. Res. 240(3): 637-648 (2015) - [p2]Rhyd Lewis:
Graph Coloring and Recombination. Handbook of Computational Intelligence 2015: 1239-1254 - 2014
- [j13]Kate Smith-Miles, Davaatseren Baatar, Brendan Wreford, Rhyd Lewis:
Towards objective measures of algorithm performance across instance space. Comput. Oper. Res. 45: 12-24 (2014) - [c6]Ian M. Cooper, Matthew P. John, Rhydian Lewis, Christine L. Mumford, Andrew Olden:
Optimising large scale public transport network design problems using mixed-mode parallel multi-objective evolutionary algorithms. IEEE Congress on Evolutionary Computation 2014: 2841-2848 - [c5]Matthew P. John, Christine L. Mumford, Rhyd Lewis:
An Improved Multi-objective Algorithm for the Urban Transit Routing Problem. EvoCOP 2014: 49-60 - 2012
- [j12]Rhyd Lewis:
A time-dependent metaheuristic algorithm for post enrolment-based course timetabling. Ann. Oper. Res. 194(1): 273-289 (2012) - [j11]Rhyd Lewis, Jonathan M. Thompson, Christine L. Mumford, J. Gillard:
A wide-ranging computational comparison of high-performance graph colouring algorithms. Comput. Oper. Res. 39(9): 1933-1950 (2012) - [j10]Xiang Song, Rhyd Lewis, Jonathan M. Thompson, Yue Wu:
An incomplete m-exchange algorithm for solving the large-scale multi-scenario knapsack problem. Comput. Oper. Res. 39(9): 1988-2000 (2012) - [c4]Penny L. Holborn, Jonathan M. Thompson, Rhyd Lewis:
Combining Heuristic and Exact Methods to Solve the Vehicle Routing Problem with Pickups, Deliveries and Time Windows. EvoCOP 2012: 63-74 - 2011
- [j9]Rhyd Lewis, Jonathan M. Thompson:
On the application of graph colouring techniques in round-robin sports scheduling. Comput. Oper. Res. 38(1): 190-204 (2011) - [j8]Rhyd Lewis, E. Pullin:
Revisiting the Restricted Growth Function Genetic Algorithm for Grouping Problems. Evol. Comput. 19(4): 693-704 (2011) - [j7]Rhyd Lewis, Xiang Song, Kathryn A. Dowsland, Jonathan M. Thompson:
An investigation into two bin packing problems with ordering and orientation implications. Eur. J. Oper. Res. 213(1): 52-65 (2011) - 2010
- [j6]Xiang Song, C. B. Chu, Rhyd Lewis, Y. Y. Nie, Jonathan M. Thompson:
A worst case analysis of a dynamic programming-based heuristic algorithm for 2D unconstrained guillotine cutting. Eur. J. Oper. Res. 202(2): 368-378 (2010) - [j5]Barry McCollum, Andrea Schaerf, Ben Paechter, Paul McMullan, Rhydian Lewis, Andrew J. Parkes, Luca Di Gaspero, Rong Qu, Edmund K. Burke:
Setting the Research Agenda in Automated Timetabling: The Second International Timetabling Competition. INFORMS J. Comput. 22(1): 120-130 (2010)
2000 – 2009
- 2009
- [j4]Rhyd Lewis:
A general-purpose hill-climbing method for order independent minimum grouping problems: A case study in graph colouring and bin packing. Comput. Oper. Res. 36(7): 2295-2310 (2009) - 2008
- [j3]Rhydian Lewis:
A survey of metaheuristic-based techniques for University Timetabling problems. OR Spectr. 30(1): 167-190 (2008) - 2007
- [j2]Rhyd Lewis:
Metaheuristics can solve sudoku puzzles. J. Heuristics 13(4): 387-401 (2007) - [j1]Rhydian Lewis, Ben Paechter:
Finding Feasible Timetables Using Group-Based Operators. IEEE Trans. Evol. Comput. 11(3): 397-413 (2007) - [c3]Rhydian Lewis:
On the Combination of Constraint Programming and Stochastic Search: The Sudoku Case. Hybrid Metaheuristics 2007: 96-107 - [p1]Rhydian Lewis, Ben Paechter, Olivia Rossi-Doria:
Metaheuristics for University Course Timetabling. Evolutionary Scheduling 2007: 237-272 - 2006
- [b1]Rhydian Lewis:
Metaheuristics for university course timetabling. Edinburgh Napier University, UK, 2006 - 2005
- [c2]Rhydian Lewis, Ben Paechter:
An empirical analysis of the grouping genetic algorithm: the timetabling case. Congress on Evolutionary Computation 2005: 2856-2863 - [c1]Rhydian Lewis, Ben Paechter:
Application of the Grouping Genetic Algorithm to University Course Timetabling. EvoCOP 2005: 144-153
Coauthor Index
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