Staff profile
Dr George Mertzios
Associate Professor
Affiliation | Telephone |
---|---|
Associate Professor in the Department of Computer Science | +44 (0) 191 33 42429 |
Biography
George Mertzios received his Degree ("Diplom") in Mathematics with minor Computer Science (1.2, "Excellent") from the Technische Universitaet Muenchen in 2005, and his PhD in Computer Science from the RWTH Aachen University, Germany, in 2009. During 2010-11 he worked as a postdoctorate researcher at the Department of Computer Science in Technion - Israel Institute of Technology and at the Caesarea Rothschild Institute for Computer Science in the University of Haifa, Israel. From June to July 2012 he was an Invited Assistant Professor at the Laboratoire Bordelais de Recherche en Informatique (LaBRI) of University of Bordeaux/CNRS, France. From 2011 to 2015 he was a Lecturer in Computer Science at Durham University. From 2015 to 2017 he was a Senior Lecturer, and since 2017 he is an Associate Professor in Computer Science at Durham. His research areas include Efficient Graph Algorithms, Temporal (Dynamically Changing) Graphs, Computational and Parameterized Complexity, Evolutionary Graph Theory, and Algorithmic Game Theory.
george (dot) mertzios (at) durham.ac.uk
For more details refer to my home page:
https://mertzios.net/
Research interests
- Efficient Algorithms & Computational Complexity
- Foundations of Networks & Algorithmic Graph Theory
- Evolutionary Graph Theory
- Parameterized Complexity
- Combinatorial Optimization
Publications
Chapter in book
- Kernelization Lower Bounds for Finding Constant-Size SubgraphsFluschnik, T., Mertzios, G., & Nichterlein, A. (2018). Kernelization Lower Bounds for Finding Constant-Size Subgraphs. In F. Manea, R. Miller, & D. Nowotka (Eds.), Sailing routes in the world of computation : 14th Conference on Computability in Europe, CiE 2018, Kiel, Germany, July 30-August 3, 2018. Proceedings. (pp. 183-193). Springer Verlag. https://doi.org/10.1007/978-3-319-94418-0_19
- Approximating Fixation Probabilities in the Generalized Moran ProcessMertzios, G. (2014). Approximating Fixation Probabilities in the Generalized Moran Process. In M.-Y. Kao (Ed.), Encyclopedia of algorithms. (pp. 1-6). Springer Verlag. https://doi.org/10.1007/978-3-642-27848-8_596-1
- Multitolerance GraphsMertzios, G. (2014). Multitolerance Graphs. In M.-Y. Kao (Ed.), Encyclopedia of algorithms. (pp. 1-6). Springer Verlag. https://doi.org/10.1007/978-3-642-27848-8_684-1
- Minimum Bisection Is NP-hard on Unit Disk GraphsDíaz, J., & Mertzios, G. (2014). Minimum Bisection Is NP-hard on Unit Disk Graphs. In E. Csuhaj-Varjú, M. Dietzfelbinger, & Z. Ésik (Eds.), Mathematical foundations of computer science 2014 : 39th international symposium, MFCS 2014, Budapest, Hungary, August 25-29, 2014. Proceedings, part II. (pp. 251-262). Springer Verlag. https://doi.org/10.1007/978-3-662-44465-8_22
- Determining Majority in Networks with Local Interactions and Very Small Local MemoryMertzios, G., Nikoletseas, S., Raptopoulos, C., & Spirakis, P. (2014). Determining Majority in Networks with Local Interactions and Very Small Local Memory. In J. Esparza, P. Fraigniaud, T. Husfeldt, & E. Koutsoupias (Eds.), Automata, languages, and programming : 41st international colloquium, ICALP 2014, Copenhagen, Denmark, July 8-11, 2014, proceedings, part I. (pp. 871-882). Springer Verlag. https://doi.org/10.1007/978-3-662-43948-7_72
- Intersection Graphs of L-Shapes and Segments in the PlaneFelsner, S., Knauer, K., Mertzios, G., & Ueckerdt, T. (2014). Intersection Graphs of L-Shapes and Segments in the Plane. In E. Csuhaj-Varjú, M. Dietzfelbinger, & Z. Ésik (Eds.), Mathematical foundations of computer science 2014 : 39th international symposium, MFCS 2014, Budapest, Hungary, August 25-29, 2014. Proceedings, part II. (pp. 299-310). Springer Verlag. https://doi.org/10.1007/978-3-662-44465-8_26
- The Recognition of Simple-Triangle Graphs and of Linear-Interval Orders Is PolynomialMertzios, G. (2013). The Recognition of Simple-Triangle Graphs and of Linear-Interval Orders Is Polynomial. In H. L. Bodlaender & G. F. Italiano (Eds.), Algorithms - ESA 2013 : 21st annual European symposium, Sophia Antipolis, France, September 2-4, 2013. Proceedings. (pp. 719-730). Springer Verlag. https://doi.org/10.1007/978-3-642-40450-4_61
- Temporal Network Optimization Subject to Connectivity ConstraintsMertzios, G., Michail, O., Chatzigiannakis, I., & Spirakis, P. (2013). Temporal Network Optimization Subject to Connectivity Constraints. In F. V. Fomin, R. Freivalds, M. Kwiatkowska, & D. Peleg (Eds.), Automata, languages, and programming : 40th international colloquium, ICALP 2013, Riga, Latvia, July 8 - 12, 2013, proceedings, part II. (pp. 657-668). Springer Verlag. https://doi.org/10.1007/978-3-642-39212-2_57
- Algorithms and Almost Tight Results for 3-Colorability of Small Diameter GraphsMertzios, G., & Spirakis, P. (2013). Algorithms and Almost Tight Results for 3-Colorability of Small Diameter Graphs. In P. van E. Boas, F. C. Groen, G. F. Italiano, J. Nawrocki, & H. Sack (Eds.), SOFSEM 2013 : theory and practice of computer science : 39th international conference on current trends in theory and practice of computer science, Špindlerův Mlýn, Czech Republic, January 26-31, 2013. Proceedings. (pp. 332-343). Springer Verlag. https://doi.org/10.1007/978-3-642-35843-2_29
- Strong Bounds for Evolution in NetworksMertzios, G., & Spirakis, P. (2013). Strong Bounds for Evolution in Networks. In F. V. Fomin, R. Freivalds, M. Kwiatkowska, & D. Peleg (Eds.), Automata, languages, and programming : 40th international colloquium, ICALP 2013, Riga, Latvia, July 8 - 12, 2013, proceedings, part II. (pp. 669-680). Springer Verlag. https://doi.org/10.1007/978-3-642-39212-2_58
- On the Recognition of Four-Directional Orthogonal Ray GraphsFelsner, S., Mertzios, G., & Mustata, I. (2013). On the Recognition of Four-Directional Orthogonal Ray Graphs. In K. Chatterjee & J. Sgall (Eds.), Mathematical foundations of computer science 2013 : 38th international symposium, MFCS 2013, Klosterneuburg, Austria, August 26-30, 2013. Proceedings. (pp. 373-384). Springer Verlag. https://doi.org/10.1007/978-3-642-40313-2_34
Conference Paper
- Brief Announcement: Amnesiac Flooding: Easy to Break, Hard to EscapeAustin, H., Gadouleau, M., Mertzios, G. B., & Trehan, A. (in press). Brief Announcement: Amnesiac Flooding: Easy to Break, Hard to Escape. Presented at ACM Principles of Distributed Computing (PODC) 2025, Huatulco, Mexico.
- NP-completeness of the combinatorial distance matrix realisation problemFairbairn, D., Mertzios, G., & Peyerimhoff, N. (in press). NP-completeness of the combinatorial distance matrix realisation problem. Presented at 14th International Symposium on Algorithms and Complexity (CIAC 2025), Rome, Italy.
- Brief Announcement: Amnesiac Flooding: Easy to Break, Difficult to EscapeAustin, H., Gadouleau, M., Mertzios, G., & Trehan, A. (in press). Brief Announcement: Amnesiac Flooding: Easy to Break, Difficult to Escape. Presented at 2025 Symposium on Principles of Distributed Computing, Huatulco, Mexico.
- The threshold of existence of δ-temporal cliques in random simple temporal graphsMertzios, G. B., Nikoletseas, S., Raptopoulos, C., & Spirakis, P. (2025). The threshold of existence of δ-temporal cliques in random simple temporal graphs. In Q. Bramas, A. Casteigts, & K. Meeks (Eds.), Algorithmics of Wireless Networks (pp. 131-143). Springer. https://doi.org/10.1007/978-3-031-74580-5_10
- Brief Announcement: On the Existence of δ-Temporal Cliques in Random Simple Temporal GraphsMertzios, G., Nikoletseas, S., Raptopoulos, C., & Spirakis, P. (2024). Brief Announcement: On the Existence of δ-Temporal Cliques in Random Simple Temporal Graphs. In 3rd Symposium on Algorithmic Foundations of Dynamic Networks (SAND 2024) (pp. 27:1-27:5). Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.SAND.2024.27
- Temporal Graph Realization from Fastest PathsKlobas, N., Mertzios, G., Molter, H., & Spirakis, P. (2024). Temporal Graph Realization from Fastest Paths. In 3rd Symposium on Algorithmic Foundations of Dynamic Networks (SAND 2024) (pp. 16:1-16:18). Schloss Dagstuhl - Leibniz-Zentrum für Informatik 2024. https://doi.org/10.4230/LIPIcs.SAND.2024.16
- Sliding into the Future: Investigating Sliding Windows in Temporal GraphsKlobas, N., Mertzios, G. B., & Spirakis, P. G. (2023, August 21). Sliding into the Future: Investigating Sliding Windows in Temporal Graphs. Presented at 48th International Symposium on Mathematical Foundations of Computer Science (MFCS 2023), Bordeaux, France. https://doi.org/10.4230/LIPIcs.MFCS.2023.5
- Payment scheduling in the Interval Debt ModelFriedetzky, T., Kutner, D., Mertzios, G., Stewart, I., & Trehan, A. (2023). Payment scheduling in the Interval Debt Model. In Lecture Notes in Computer Science (pp. 267-282). Springer Verlag. https://doi.org/10.1007/978-3-031-23101-8_18
- The complexity of growing a graphMertzios, G., Michail, O., Skretas, G., Spirakis, P., & Theofilatos, M. (2022). The complexity of growing a graph. In ALGOSENSORS 2022: Algorithmics of Wireless Networks (pp. 123-137). Springer Verlag. https://doi.org/10.1007/978-3-031-22050-0_9
- The complexity of temporal vertex cover in small-degree graphsHamm, T., Klobas, N., Mertzios, G., & Spirakis, P. (2022, June 28). The complexity of temporal vertex cover in small-degree graphs. Presented at 36th AAAI Conference on Artificial Intelligence (AAAI 2022), Vancouver, BC. https://doi.org/10.1609/aaai.v36i9.21259
- The complexity of computing optimum labelings for temporal connectivityKlobas, N., Mertzios, G., Molter, H., & Spirakis, P. (2022). The complexity of computing optimum labelings for temporal connectivity. In Leibniz International Proceedings in Informatics (LIPIcs) (pp. 62:1-62:15). LIPIcs (Leibniz International Proceedings in Informatics). https://doi.org/10.4230/lipics.mfcs.2022.62
- The complexity of transitively orienting temporal graphsMertzios, G., Molter, H., Renken, M., Spirakis, P., & Zschoche, P. (2021). The complexity of transitively orienting temporal graphs (F. Bonchi & S. J. Puglisi, Eds.). https://doi.org/10.4230/lipics.mfcs.2021.75
- Equitable scheduling on a single machineHeeger, K., Hermelin, D., Mertzios, G., Molter, H., Niedermeier, R., & Shabtay, D. (2021). Equitable scheduling on a single machine. Presented at 35th AAAI Conference on Artificial Intelligence (AAAI), Vancouver, Canada. https://doi.org/10.1609/aaai.v35i13.17404
- Interference-free walks in time: temporally disjoint pathsKlobas, N., Mertzios, G., Molter, H., Niedermeier, R., & Zschoche, P. (2021). Interference-free walks in time: temporally disjoint paths. Presented at 30th International Joint Conference on Artificial Intelligence (IJCAI-21), Montreal, Quebec. https://doi.org/10.24963/ijcai.2021/563
- Computing maximum matchings in temporal graphsMertzios, G., Molter, H., Niedermeier, R., Zamaraev, V., & Zschoche, P. (2020). Computing maximum matchings in temporal graphs. In C. Paul & M. Blaser (Eds.), 37th International Symposium on Theoretical Aspects of Computer Science (STACS 2020) (pp. 27:1-27:14). Dagstuhl Publishing. https://doi.org/10.4230/lipics.stacs.2020.27
- Exact and approximate algorithms for computing a second Hamiltonian cycleDeligkas, A., Mertzios, G., Spirakis, P., & Zamaraev, V. (2020). Exact and approximate algorithms for computing a second Hamiltonian cycle. In J. Esparza & D. Král (Eds.), 45th International Symposium on Mathematical Foundations of Computer Science (MFCS 2020). (pp. 21:1-21:13). Dagstuhl Publishing. https://doi.org/10.4230/lipics.mfcs.2020.27
- Deleting edges to restrict the size of an epidemic in temporal networksEnright, J., Meeks, K., Mertzios, G., & Zamaraev, V. (2019). Deleting edges to restrict the size of an epidemic in temporal networks. In P. Rossmanith, P. Heggernes, & J.-P. Katoen (Eds.), 44th International Symposium on Mathematical Foundations of Computer Science (pp. 57:1-57:15). Schloss Dagstuhl. https://doi.org/10.4230/lipics.mfcs.2019.57
- How fast can we reach a target vertex in stochastic temporal graphs?Akrida, E. C., Mertzios, G. B., Nikoletseas, S., Christoforos, R., Spirakis, P. G., & Zamaraev, V. (2019). How fast can we reach a target vertex in stochastic temporal graphs?. In C. Baier, I. Chatzigiannakis, P. Flocchini, & S. Leonardi (Eds.), 46th International Colloquium on Automata, Languages, and Programming (ICALP 2019) (pp. 131:1-131:14). Dagstuhl Publishing. https://doi.org/10.4230/lipics.icalp.2019.131
- Sliding Window Temporal Graph ColoringMertzios, G., Molter, H., & Zamaraev, V. (2019). Sliding Window Temporal Graph Coloring. In Proceedings of the Thirty-Third AAAI Conference on Artificial Intelligence. (pp. 7667-7674). AAAI Press. https://doi.org/10.1609/aaai.v33i01.33017667
- The temporal explorer who returns to the baseAkrida, E., Mertzios, G., & Spirakis, P. (2019). The temporal explorer who returns to the base. In P. Heggernes (Ed.), Algorithms and Complexity (CIAC 2019); 11th International Conference, CIAC 2019, Rome, Italy, May 27–29, 2019 ; proceedings. (pp. 13-24). Springer Verlag. https://doi.org/10.1007/978-3-030-17402-6_2
- Temporal vertex cover with a sliding time windowAkrida, E., Mertzios, G., Spirakis, P., & Zamaraev, V. (2018). Temporal vertex cover with a sliding time window. In I. Chatzigiannakis, C. Kaklamanis, D. Marx, & D. Sannella (Eds.), 45th International Colloquium on Automata, Languages, and Programming (ICALP 2018) : Prague, Czech Republic, July 9-13, 2018 ; proceedings. (pp. 148:1-148:14). Schloss Dagstuhl – Leibniz-Zentrum für Informatik. https://doi.org/10.4230/lipics.icalp.2018.148
- Binary search in graphs revisitedDeligkas, A., Mertzios, G., & Spirakis, P. (2017). Binary search in graphs revisited. In K. G. Larsen, H. L. Bodlaender, & J.-F. Raskin (Eds.), 42nd International Symposium on Mathematical Foundations of Computer Science (MFCS 2017) : August 21-25, 2017, Aalborg (Denmark) ; proceedings. Schloss Dagstuhl – Leibniz-Zentrum für Informatik. https://doi.org/10.4230/lipics.mfcs.2017.20
- The Power of Linear-Time Data Reduction for Maximum MatchingMertzios, G., Nichterlein, A., & Niedermeier, R. (2017). The Power of Linear-Time Data Reduction for Maximum Matching. In K. G. Larsen, H. L. Bodlaender, & J.-F. Raskin (Eds.), 42nd International Symposium on Mathematical Foundations of Computer Science (MFCS 2017) : August 21-25, 2017, Aalborg (Denmark) ; proceedings.. Schloss Dagstuhl – Leibniz-Zentrum für Informatik. https://doi.org/10.4230/lipics.mfcs.2017.46
- When can graph hyperbolicity be computed in linear time?Fluschnik, T., Komusiewicz, C., Mertzios, G., Nichterlein, A., Niedermeier, R., & Talmon, N. (2017). When can graph hyperbolicity be computed in linear time?. In F. Ellen, A. Kolokolova, & J.-R. Sack (Eds.), Algorithms and data structures : 15th International Symposium, WADS 2017, St. John’s, NL, Canada, July 31 – August 2, 2017 ; proceedings. (pp. 397-408). Springer Verlag. https://doi.org/10.1007/978-3-319-62127-2_34
- The computational complexity of weighted greedy matchingDeligkas, A., Mertzios, G., & Spirakis, P. (2017). The computational complexity of weighted greedy matching. In Proceedings of the Thirty-First AAAI Conference on Artificial Intelligence (AAAI-17) : Hilton, San Francisco, Union Square, February 4, 2017 – February 10. (pp. 466-472). AAAI Press.
- Finding secluded places of special interest in graphsBevern, R., Fluschnik, T., Mertzios, G., Molter, H., Sorge, M., & Suchý, O. (2017). Finding secluded places of special interest in graphs. In J. Guo & D. Hermelin (Eds.), 11th International Symposium on Parameterized and Exact Computation (IPEC 2016) : August 24-26, 2016, Aarhus, Denmark. (pp. 5:1-5:16). Schloss Dagstuhl – Leibniz-Zentrum für Informatik. https://doi.org/10.4230/lipics.ipec.2016.5
- Stably computing order statistics with arithmetic population protocolsMertzios, G., Nikoletseas, S., Raptopoulos, C., & Spirakis, P. (2016). Stably computing order statistics with arithmetic population protocols. In P. Faliszewski, A. Muscholl, & R. Niedermeier (Eds.), 41st International Symposium on Mathematical Foundations of Computer Science (MFCS 2016). (pp. 68:1-68:14). Schloss Dagstuhl - Leibniz Center for Informatics. https://doi.org/10.4230/lipics.mfcs.2016.68
- Algorithms and complexity for metric dimension and location-domination on interval and permutation graphsFoucaud, F., Mertzios, G., Naserasr, R., Parreau, A., & Valicov, P. (2016). Algorithms and complexity for metric dimension and location-domination on interval and permutation graphs. In E. W. Mayr (Ed.), Graph-theoretic concepts in computer science : 41st international workshop, WG 2015, Garching, Germany, June 17-19, 2015 ; revised papers. (pp. 456-471). Springer Verlag. https://doi.org/10.1007/978-3-662-53174-7_32
- Graph editing to a given degree sequenceGolovach, P., & Mertzios, G. (2016). Graph editing to a given degree sequence. In A. Kulikov & G. Woeginger (Eds.), Computer science – Theory and applications : 11th International Computer Science Symposium in Russia, CSR 2016, St. Petersburg, Russia, June 9-13, 2016. Proceedings. (pp. 177-191). Springer Verlag. https://doi.org/10.1007/978-3-319-34171-2_13
- On temporally connected graphs of small costAkrida, E., Gasieniec, L., Mertzios, G., & Spirakis, P. (2016). On temporally connected graphs of small cost. In Approximation and online algorithms : 13th International Workshop, WAOA 2015, Patras, Greece, September 17-18, 2015. Revised selected papers. (pp. 84-96). Springer Verlag. https://doi.org/10.1007/978-3-319-28684-6_8
- Polynomial fixed-parameter algorithms: A case study for longest path on interval graphsGiannopoulou, A., Mertzios, G., & Niedermeier, R. (2015). Polynomial fixed-parameter algorithms: A case study for longest path on interval graphs. In T. Husfeldt & I. Kanj (Eds.), 10th International Symposium on Parameterized and Exact Computation (IPEC 2015). (pp. 102-113). Leibniz International Proceedings in Informatics. https://doi.org/10.4230/lipics.ipec.2015.102
- New geometric representations and domination problems on tolerance and multitolerance graphsGiannopoulou, A., & Mertzios, G. (2015). New geometric representations and domination problems on tolerance and multitolerance graphs. In E. W. Mayr & N. Ollinger (Eds.), 32nd international symposium on theoretical aspects of computer science (STACS 2015). (pp. 354-366). Schloss Dagstuhl – Leibniz-Zentrum für Informatik. https://doi.org/10.4230/lipics.stacs.2015.354
- Ephemeral networks with random availability of links: diameter and connectivityAkrida, E., Gasieniec, L., Mertzios, G., & Spirakis, P. (2014). Ephemeral networks with random availability of links: diameter and connectivity. In Proceedings of the 26th ACM symposium on Parallelism in algorithms and architectures. (pp. 267-276). Association for Computing Machinery (ACM). https://doi.org/10.1145/2612669.2612693
- Approximating Fixation Probabilities in the Generalized Moran ProcessDíaz, J., Goldberg, L., Mertzios, G., Richerby, D., Serna, M., & Spirakis, P. (2012). Approximating Fixation Probabilities in the Generalized Moran Process. In Y. Rabani (Ed.), Proceedings of the Twenty-Third Annual ACM-SIAM Symposium on Discrete Algorithms, Kyoto, Japan, January 17-19, 2012. (pp. 954-960). Society for Industrial and Applied Mathematics. https://doi.org/10.1137/1.9781611973099.76
- Parameterized Domination in Circle GraphsBousquet, N., Gonçalves, D., Mertzios, G., Paul, C., Sau, I., & Thomassé, S. (2012). Parameterized Domination in Circle Graphs. In M. C. . Golumbic, M. Stern, A. Levy, & G. Morgenstern (Eds.), Graph-theoretic concepts in computer science : 38th International Workshop, WG 2012, Jerusalem, Israel, June 26-28, 2012 ; revised selected papers (pp. 308-319). Springer Verlag. https://doi.org/10.1007/978-3-642-34611-8_31
- Optimizing busy time on parallel machinesMertzios, G., Shalom, M., Voloshin, A., Wong, P., & Zaks, S. (2012). Optimizing busy time on parallel machines. In Proceedings of the 2012 IEEE 26th International Parallel and Distributed Processing Symposium (IPDPS 2012). (pp. 238-248). Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ipdps.2012.31
- Natural Models for Evolution on NetworksMertzios, G., Nikoletseas, S., Raptopoulos, C., & Spirakis, P. (2011). Natural Models for Evolution on Networks. In N. Chen, E. Elkind, & E. Koutsoupias (Eds.), Internet and network economics : 7th international workshop, WINE 2011, 11-14 December 2011 ; proceedings. (pp. 290-301). Springer Verlag. https://doi.org/10.1007/978-3-642-25510-6_25
- Online Regenerator PlacementMertzios, G., Shalom, M., Wong, P., & Zaks, S. (2011). Online Regenerator Placement. In A. Fernàndez Anta, G. Lipari, & M. Roy (Eds.), Principles of distributed systems, OPODIS 2011, 15th International Conference, 13-16 December 2011, Toulouse, France ; proceedings. (pp. 4-17). Springer Verlag. https://doi.org/10.1007/978-3-642-25873-2_2
- Computing and Counting Longest Paths on Circular-Arc Graphs in Polynomial TimeMertzios, G., & Bezáková, I. (2011). Computing and Counting Longest Paths on Circular-Arc Graphs in Polynomial Time. In F. Bonomo, T. Liebling, J. Marenco, J. Szwarcfiter, & M. Valencia-Pabon (Eds.), Electronic notes in discrete mathematics (pp. 219-224). Elsevier. https://doi.org/10.1016/j.endm.2011.05.038
- The Recognition of Triangle GraphsMertzios, G. (2011). The Recognition of Triangle Graphs. In T. Schwentick & C. Dürr (Eds.), 28th International Symposium on Theoretical Aspects of Computer Science, STACS 2011, 10-12 March 2011, Dortmund, Germany ; proceedings. (pp. 591-602). Schloss Dagstuhl. https://doi.org/10.4230/lipics.stacs.2011.591
- An intersection model for multitolerance graphs: Efficient algorithms and hierarchyMertzios, G. (2011). An intersection model for multitolerance graphs: Efficient algorithms and hierarchy. In Twenty-Second Annual ACM-SIAM Symposium on Discrete Algorithms, 23-25 January 2011, San Francisco ; proceedings. (pp. 1306-1317). Society for Industrial and Applied Mathematics.
- On the intersection of tolerance and cocomparability graphsMertzios, G., & Zaks, S. (2010). On the intersection of tolerance and cocomparability graphs. In O. Cheong, K.-Y. Chwa, & K. Park (Eds.), Algorithms and Computation, 21st International Symposium, ISAAC 2010, 15-17 December 2010, Jeju Island, Korea ; proceedings Part I. (pp. 230-240). Springer Verlag. https://doi.org/10.1007/978-3-642-17517-6_22
- Placing regenerators in optical networks to satisfy multiple sets of requestsMertzios, G., Sau, I., Shalom, M., & Zaks, S. (2010). Placing regenerators in optical networks to satisfy multiple sets of requests. In S. Abramsky, C. Gavoille, C. Kirchner, F. Meyer auf der Heide, & P. G. Spirakis (Eds.), Automata, Languages and Programming : 37th International Colloquium, ICALP 2010, 6-10 July 2010, Bordeaux, France ; proceedings, Part II. (pp. 333-344). Springer Verlag. https://doi.org/10.1007/978-3-642-14162-1_28
- A new intersection model and improved algorithms for tolerance graphsMertzios, G., Sau, I., & Zaks, S. (2010). A new intersection model and improved algorithms for tolerance graphs. In C. Paul & M. Habib (Eds.), Graph-theoretic concepts in computer science : 35th international workshop, WG 2009, 24-26 June 2009, Montpellier, France ; revised papers. (pp. 285-295). Springer Verlag. https://doi.org/10.1007/978-3-642-11409-0_25
- The Recognition of Tolerance and Bounded Tolerance GraphsMertzios, G., Sau, I., Zaks, S., Marion, J.-Y., & Schwentick, T. (2010). The Recognition of Tolerance and Bounded Tolerance Graphs. In J.-Y. Marion & T. Schwentick (Eds.), 27th International Symposium on Theoretical Aspects of Computer Science, STACS 2010, 4-6 March 2010 ; proceedings. (pp. 585-596). Schloss Dagstuhl. https://doi.org/10.4230/lipics.stacs.2010.2487
- The longest path problem is polynomial on interval graphsIoannidou, K., Mertzios, G., & Nikolopoulos, S. (2009). The longest path problem is polynomial on interval graphs. In K. Rastislav & N. Damian (Eds.), Mathematical foundations of computer science 2009 34th international symposium, MFCS 2009, Novy Smokovec, High Tatras, Slovakia, August 24-28, 2009 : proceedings. (pp. 403-414). Springer Verlag. https://doi.org/10.1007/978-3-642-03816-7_35
- A parameterized algorithm for the preemptive scheduling of equal-length jobsMertzios, G., & Unger, W. (2009, July 1). A parameterized algorithm for the preemptive scheduling of equal-length jobs. Presented at International Conference on Theoretical and Mathematical Foundations of Computer Science (TMFCS-09), Orlando, Florida.
- Fast convergence of routing games with splittable flowsMertzios, G. (2009, July 1). Fast convergence of routing games with splittable flows. Presented at International Conference on Theoretical and Mathematical Foundations of Computer Science (TMFCS- 09), Orlando, Florida.
- The friendship problem on graphsMertzios, G., & Unger, W. (2008, January 1). The friendship problem on graphs. Presented at 1st International Conference on Relations, Orders and Graphs : Interaction with Computer Science (ROGICS), Mahdia, Tunisia.
- An optimal algorithm for the k-fixed-endpoint path cover on proper interval graphsMertzios, G., & Unger, W. (2008, January 1). An optimal algorithm for the k-fixed-endpoint path cover on proper interval graphs. Presented at 19th International Workshop on Combinatorial Algorithms (IWOCA), Nagoya, Japan.
- Discretization schemes and numerical approximations of PDE impainting models and a comparative evaluation on novel real world MRI reconstruction applicationsKarras, D., & Mertzios, G. (2004). Discretization schemes and numerical approximations of PDE impainting models and a comparative evaluation on novel real world MRI reconstruction applications. In 2004 IEEE International Workshop on Imaging Systems and Techniques (IST) : 14 May 2004, Stresa, Italy ; proceedings. (pp. 153-158). Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ist.2004.1397304
- A novel multipath dispersion reduction technique based on controlled-polarization optical wireless link set-upGiakos, G., Patnekar, N., Sumrain, S., Fraiwan, L., Kumar, V., & Mertzios, G. (2003). A novel multipath dispersion reduction technique based on controlled-polarization optical wireless link set-up. In Instrumentation and Measurement Technology, 20th Annual Conference, IMTC ’03, 20-22 May 2003, Colorado, USA ; proceedings. (pp. 1622-1626). Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/imtc.2003.1208024
Journal Article
- The complexity of transitively orienting temporal graphsMertzios, G., Molter, H., Renken, M., Spirakis, P., & Zschoche, P. (2025). The complexity of transitively orienting temporal graphs. Journal of Computer and System Sciences, 150, Article 103630. https://doi.org/10.1016/j.jcss.2025.103630
- Linear Programming complementationGadouleau, M., Mertzios, G., & Zamaraev, V. (2025). Linear Programming complementation. Theoretical Computer Science, 1032, Article 115087. https://doi.org/10.1016/j.tcs.2025.115087
- Payment Scheduling in the Interval Debt ModelStewart, I., Kutner, D., Friedetzky, T., Trehan, A., & Mertzios, G. (2025). Payment Scheduling in the Interval Debt Model. Theoretical Computer Science, 1028, Article 115028. https://doi.org/10.1016/j.tcs.2024.115028
- The complexity of growing a graphMertzios, G., Michail, O., Skretas, G., Spirakis, P. G., & Theofilatos, M. (2025). The complexity of growing a graph. Journal of Computer and System Sciences, 147, Article 103587. https://doi.org/10.1016/j.jcss.2024.103587
- The complexity of computing optimum labelings for temporal connectivityKlobas, N., Mertzios, G., Molter, H., & Spirakis, P. (2024). The complexity of computing optimum labelings for temporal connectivity. Journal of Computer and System Sciences, 146, Article 103564. https://doi.org/10.1016/j.jcss.2024.103564
- Approximate and Randomized Algorithms for Computing a Second Hamiltonian CycleDeligkas, A., Mertzios, G. B., Spirakis, P. G., & Zamaraev, V. (2024). Approximate and Randomized Algorithms for Computing a Second Hamiltonian Cycle. Algorithmica, 86(9), 2766-2785. https://doi.org/10.1007/s00453-024-01238-z
- Fast parameterized preprocessing for polynomial-time solvable graph problemsHimmel, A., Mertzios, G., Nichterlein, A., & Niedermeier, R. (2024). Fast parameterized preprocessing for polynomial-time solvable graph problems. Communications of the ACM, 67(4), 70–79. https://doi.org/10.1145/3624713
- Graphs with minimum fractional domatic numberGadouleau, M., Harms, N., Mertzios, G. B., & Zamaraev, V. (2024). Graphs with minimum fractional domatic number. Discrete Applied Mathematics, 343, 140-148. https://doi.org/10.1016/j.dam.2023.10.020
- Computing maximum matchings in temporal graphsMertzios, G., Molter, H., Niedermeier, R., Zamaraev, V., & Zschoche, P. (2023). Computing maximum matchings in temporal graphs. Journal of Computer and System Sciences, 137, 1-19. https://doi.org/10.1016/j.jcss.2023.04.005
- Equitable scheduling on a single machineHeeger, K., Hermelin, D., Mertzios, G., Molter, H., Niedermeier, R., & Shabtay, D. (2023). Equitable scheduling on a single machine. Journal of Scheduling, 26(2), 209-225. https://doi.org/10.1007/s10951-022-00754-6
- Interference-free walks in time: Temporally disjoint pathsKlobas, N., Mertzios, G., Molter, H., Niedermeier, R., & Zschoche, P. (2022). Interference-free walks in time: Temporally disjoint paths. Autonomous Agents and Multi-Agent Systems, 37, Article 1. https://doi.org/10.1007/s10458-022-09583-5
- Sliding window temporal graph coloringMertzios, G., Molter, H., & Zamaraev, V. (2021). Sliding window temporal graph coloring. Journal of Computer and System Sciences, 120, 97-115. https://doi.org/10.1016/j.jcss.2021.03.005
- The temporal explorer who returns to the baseAkrida, E., Mertzios, G., Spirakis, P., & Raptopoulos, C. (2021). The temporal explorer who returns to the base. Journal of Computer and System Sciences, 120, 179-193. https://doi.org/10.1016/j.jcss.2021.04.001
- Deleting edges to restrict the size of an epidemic in temporal networksEnright, J., Meeks, K., Mertzios, G., & Zamaraev, V. (2021). Deleting edges to restrict the size of an epidemic in temporal networks. Journal of Computer and System Sciences, 119, 60-77. https://doi.org/10.1016/j.jcss.2021.01.007
- The Power of Linear-Time Data Reduction for Maximum MatchingMertzios, G., Nichterlein, A., & Niedermeier, R. (2020). The Power of Linear-Time Data Reduction for Maximum Matching. Algorithmica, 82(12), 3521-3565. https://doi.org/10.1007/s00453-020-00736-0
- How fast can we reach a target vertex in stochastic temporal graphs?Akrida, E. C., Mertzios, G. B., Nikoletseas, S., Raptopoulos, C., Spirakis, P. G., & Zmaraev, V. (2020). How fast can we reach a target vertex in stochastic temporal graphs?. Journal of Computer and System Sciences, 114, 65-83. https://doi.org/10.1016/j.jcss.2020.05.005
- Temporal vertex cover with a sliding time windowAkrida, E., Mertzios, G., Spirakis, P., & Zamaraev, V. (2020). Temporal vertex cover with a sliding time window. Journal of Computer and System Sciences, 107, 108-123. https://doi.org/10.1016/j.jcss.2019.08.002
- Binary search in graphs revisitedDeligkas, A., Mertzios, G., & Spirakis, P. (2019). Binary search in graphs revisited. Algorithmica, 81(5), Article 1757. https://doi.org/10.1007/s00453-018-0501-y
- When can graph hyperbolicity be computed in linear time?Fluschnik, T., Komusiewicz, C., Mertzios, G., Nichterlein, A., Niedermeier, R., & Talmon, N. (2019). When can graph hyperbolicity be computed in linear time?. Algorithmica, 81(5), 2016-2045. https://doi.org/10.1007/s00453-018-0522-6
- Temporal network optimization subject to connectivity constraintsMertzios, G., Michail, O., & Spirakis, P. (2019). Temporal network optimization subject to connectivity constraints. Algorithmica, 81(4), 1416-1449. https://doi.org/10.1007/s00453-018-0478-6
- A linear-time algorithm for maximum-cardinality matching on cocomparability graphsMertzios, G., Nichterlein, A., & Niedermeier, R. (2018). A linear-time algorithm for maximum-cardinality matching on cocomparability graphs. SIAM Journal on Discrete Mathematics, 32(4), 2820-2835. https://doi.org/10.1137/17m1120920
- The parameterized complexity of finding secluded solutions to some classical optimization problems on graphsBevern, R., Fluschnik, T., Mertzios, G., Molter, H., Sorge, M., & Suchý, O. (2018). The parameterized complexity of finding secluded solutions to some classical optimization problems on graphs. Discrete Optimization, 30, 20-50. https://doi.org/10.1016/j.disopt.2018.05.002
- Strong bounds for evolution in networksMertzios, G., & Spirakis, P. (2018). Strong bounds for evolution in networks. Journal of Computer and System Sciences, 97, 60-82. https://doi.org/10.1016/j.jcss.2018.04.004
- Polynomial fixed-parameter algorithms: A case study for longest path on interval graphsGiannopoulou, A. C., Mertzios, G. B., & Niedermeier, R. (2017). Polynomial fixed-parameter algorithms: A case study for longest path on interval graphs. Theoretical Computer Science, 689, 67-95. https://doi.org/10.1016/j.tcs.2017.05.017
- Minimum bisection is NP-hard on unit disk graphsDiaz, J., & Mertzios, G. (2017). Minimum bisection is NP-hard on unit disk graphs. Information and Computation, 256, 83-92. https://doi.org/10.1016/j.ic.2017.04.010
- The complexity of optimal design of temporally connected graphsAkrida, E., Gasieniec, L., Mertzios, G., & Spirakis, P. (2017). The complexity of optimal design of temporally connected graphs. Theory of Computing Systems, 61(3), 907-944. https://doi.org/10.1007/s00224-017-9757-x
- Identification, location–domination and metric dimension on interval and permutation graphs. I. BoundsFoucaud, F., Mertzios, G., Naserasr, R., Parreau, A., & Valicov, P. (2017). Identification, location–domination and metric dimension on interval and permutation graphs. I. Bounds. Theoretical Computer Science, 668, 43-58. https://doi.org/10.1016/j.tcs.2017.01.006
- Graph editing to a given degree sequenceGolovach, P., & Mertzios, G. (2017). Graph editing to a given degree sequence. Theoretical Computer Science, 665, 1-12. https://doi.org/10.1016/j.tcs.2016.12.007
- Determining majority in networks with local interactions and very small local memoryMertzios, G., Nikoletseas, S., Raptopoulos, C., & Spirakis, P. (2017). Determining majority in networks with local interactions and very small local memory. Distributed Computing, 30(1), 1-16. https://doi.org/10.1007/s00446-016-0277-8
- Online regenerator placementMertzios, G., Shalom, M., Wong, P., & Zaks, S. (2016). Online regenerator placement. Theory of Computing Systems, 61(3), 739-754. https://doi.org/10.1007/s00224-016-9711-3
- New Geometric Representations and Domination Problems on Tolerance and Multitolerance GraphsGiannopoulou, A., & Mertzios, G. (2016). New Geometric Representations and Domination Problems on Tolerance and Multitolerance Graphs. SIAM Journal on Discrete Mathematics, 30(3), 1685-1725. https://doi.org/10.1137/15m1039468
- The friendship problem on graphsMertzios, G., & Unger, W. (2016). The friendship problem on graphs. Journal of Multiple-Valued Logic and Soft Computing, 27(2-3), 275-285.
- Identification, location-domination and metric dimension on interval and permutation graphs. II. Algorithms and complexityFoucaud, F., Mertzios, G., Naserasr, R., Parreau, A., & Valicov, P. (2016). Identification, location-domination and metric dimension on interval and permutation graphs. II. Algorithms and complexity. Algorithmica, 78(3), 914-944. https://doi.org/10.1007/s00453-016-0184-1
- Intersection Graphs of L-Shapes and Segments in the PlaneFelsner, S., Knauer, K., Mertzios, G., & Ueckerdt, T. (2016). Intersection Graphs of L-Shapes and Segments in the Plane. Discrete Applied Mathematics, 206, 48-55. https://doi.org/10.1016/j.dam.2016.01.028
- On the intersection of tolerance and cocomparability graphsMertzios, G., & Zaks, S. (2016). On the intersection of tolerance and cocomparability graphs. Discrete Applied Mathematics, 199, 46-88. https://doi.org/10.1016/j.dam.2014.10.025
- Algorithms and Almost Tight Results for 3-Colorability of Small Diameter GraphsMertzios, G., & Spirakis, P. (2016). Algorithms and Almost Tight Results for 3-Colorability of Small Diameter Graphs. Algorithmica, 74(1), 385-414. https://doi.org/10.1007/s00453-014-9949-6
- Ephemeral networks with random availability of links: The case of fast networksAkrida, E., Gąsieniec, L., Mertzios, G., & Spirakis, P. (2016). Ephemeral networks with random availability of links: The case of fast networks. Journal of Parallel and Distributed Computing, 87, 109-120. https://doi.org/10.1016/j.jpdc.2015.10.002
- The recognition of simple-triangle graphs and of linear-interval orders is polynomialMertzios, G. (2015). The recognition of simple-triangle graphs and of linear-interval orders is polynomial. SIAM Journal on Discrete Mathematics, 29(3), 1150-1185. https://doi.org/10.1137/140963108
- Optimizing busy time on parallel machinesMertzios, G., Shalom, M., Voloshin, A., Wong, P., & Zaks, S. (2015). Optimizing busy time on parallel machines. Theoretical Computer Science, 562, 524-541. https://doi.org/10.1016/j.tcs.2014.10.033
- An Intersection Model for Multitolerance Graphs: Efficient Algorithms and HierarchyMertzios, G. (2014). An Intersection Model for Multitolerance Graphs: Efficient Algorithms and Hierarchy. Algorithmica, 69(3), 540-581. https://doi.org/10.1007/s00453-012-9743-2
- Approximating Fixation Probabilities in the Generalized Moran ProcessDíaz, J., Goldberg, L., Mertzios, G., Richerby, D., Serna, M., & Spirakis, P. (2014). Approximating Fixation Probabilities in the Generalized Moran Process. Algorithmica, 69(1), 78-91. https://doi.org/10.1007/s00453-012-9722-7
- Computing and counting longest paths on circular-arc graphs in polynomial timeMertzios, G., & Bezáková, I. (2014). Computing and counting longest paths on circular-arc graphs in polynomial time. Discrete Applied Mathematics, 164(Part 2), 383-399. https://doi.org/10.1016/j.dam.2012.08.024
- Parameterized Domination in Circle GraphsBousquet, N., Gonçalves, D., Mertzios, G., Paul, C., Sau, I., & Thomassé, S. (2014). Parameterized Domination in Circle Graphs. Theory of Computing Systems, 54(1), 45-72. https://doi.org/10.1007/s00224-013-9478-8
- On the fixation probability of superstarsDíaz, J., Goldberg, L., Mertzios, G., Richerby, D., Serna, M., & Spirakis, P. (2013). On the fixation probability of superstars. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 469(2156). https://doi.org/10.1098/rspa.2013.0193
- Natural models for evolution on networksMertzios, G., Nikoletseas, S., Raptopoulos, C., & Spirakis, P. (2013). Natural models for evolution on networks. Theoretical Computer Science, 477, 76-95. https://doi.org/10.1016/j.tcs.2012.11.032
- Placing regenerators in optical networks to satisfy multiple sets of requestsMertzios, G., Sau, I., Shalom, M., & Zaks, S. (2012). Placing regenerators in optical networks to satisfy multiple sets of requests. IEEE/ACM/Transactions/on/Networking, 20(6), 1870-1879. https://doi.org/10.1109/tnet.2012.2186462
- A simple polynomial algorithm for the longest path problem on cocomparability graphsMertzios, G., & Corneil, D. (2012). A simple polynomial algorithm for the longest path problem on cocomparability graphs. SIAM Journal on Discrete Mathematics, 26(3), 940-963. https://doi.org/10.1137/100793529
- The recognition of triangle graphsMertzios, G. (2012). The recognition of triangle graphs. Theoretical Computer Science, 438, 34-47. https://doi.org/10.1016/j.tcs.2012.02.042
- The longest path problem has a polynomial solution on interval graphsIoannidou, K., Mertzios, G., & Nikolopoulos, S. (2011). The longest path problem has a polynomial solution on interval graphs. Algorithmica, 61(2), 320-341. https://doi.org/10.1007/s00453-010-9411-3
- The recognition of tolerance and bounded tolerance graphsMertzios, G., Sau, I., & Zaks, S. (2011). The recognition of tolerance and bounded tolerance graphs. SIAM Journal on Computing, 40(5), 1234-1257. https://doi.org/10.1137/090780328
- Vertex Splitting and the Recognition of Trapezoid GraphsMertzios, G., & Corneil, D. (2011). Vertex Splitting and the Recognition of Trapezoid Graphs. Discrete Applied Mathematics, 159(11), 1131-1147. https://doi.org/10.1016/j.dam.2011.03.023
- Window-games between TCP flowsEfraimidis, P., Tsavlidis, L., & Mertzios, G. (2010). Window-games between TCP flows. Theoretical Computer Science, 411(31-33), 2798-2817. https://doi.org/10.1016/j.tcs.2010.03.031
- An optimal algorithm for the k-fixed-endpoint path cover on proper interval graphsMertzios, G., & Unger, W. (2010). An optimal algorithm for the k-fixed-endpoint path cover on proper interval graphs. Mathematics in Computer Science, 3(1), 85-96. https://doi.org/10.1007/s11786-009-0004-y
- Preemptive scheduling of equal-length jobs in polynomial timeMertzios, G., & Unger, W. (2010). Preemptive scheduling of equal-length jobs in polynomial time. Mathematics in Computer Science, 3(1), 73-84. https://doi.org/10.1007/s11786-009-0003-z
- A New Intersection Model and Improved Algorithms for Tolerance GraphsMertzios, G., Sau, I., & Zaks, S. (2010). A New Intersection Model and Improved Algorithms for Tolerance Graphs. SIAM Journal on Discrete Mathematics, 23(4), 1800-1813. https://doi.org/10.1137/09075994x
- New PDE-based methods for image enhancement using SOM and Bayesian inference in various discretization schemesKarras, D., & Mertzios, G. (2009). New PDE-based methods for image enhancement using SOM and Bayesian inference in various discretization schemes. Measurement Science and Technology, 20(10), Article 104012. https://doi.org/10.1088/0957-0233/20/10/104012
- A matrix characterization of interval and proper interval graphsMertzios, G. (2008). A matrix characterization of interval and proper interval graphs. Applied Mathematics Letters, 21(4), 332-337. https://doi.org/10.1016/j.aml.2007.04.001
- Solution of parameter-varying linear matrix inequalities in Toeplitz formMertzios, G. (2006). Solution of parameter-varying linear matrix inequalities in Toeplitz form. Journal of Applied Functional Analysis, 1(2), 131-152.
- A sensitive optical polarimetric imaging technique for surface defects detection of aircraft turbine enginesGiakos, G., Fraiwan, L., Patnekar, N., Sumrain, S., Mertzios, G., & Periyathamby, S. (2004). A sensitive optical polarimetric imaging technique for surface defects detection of aircraft turbine engines. IEEE Transactions on Instrumentation and Measurement, 53(1), 216-222. https://doi.org/10.1109/tim.2003.821497