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Ioannis Koutis

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  • 2022

    SpecPart: A supervised spectral framework for hypergraph partitioning solution improvement

    Bustany, I., Kahng, A. B., Koutis, I., Pramanik, B. & Wang, Z., Oct 30 2022, Proceedings of the 41st IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2022. Institute of Electrical and Electronics Engineers Inc., 13. (IEEE/ACM International Conference on Computer-Aided Design, Digest of Technical Papers, ICCAD).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    Open Access
  • 2021

    Peer learning through targeted dynamic groups formation

    Wei, D., Koutis, I. & Roy, S. B., Apr 2021, Proceedings - 2021 IEEE 37th International Conference on Data Engineering, ICDE 2021. IEEE Computer Society, p. 121-132 12 p. 9458941. (Proceedings - International Conference on Data Engineering; vol. 2021-April).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    1 Scopus citations
  • 2018

    Improved large-scale graph learning through ridge spectral sparsification

    Calandriello, D., Koutis, I., Lazaric, A. & Valko, M., Jan 1 2018, 35th International Conference on Machine Learning, ICML 2018. Dy, J. & Krause, A. (eds.). International Machine Learning Society (IMLS), p. 1081-1090 10 p. (35th International Conference on Machine Learning, ICML 2018; vol. 2).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    8 Scopus citations

  • Spectrally robust graph isomorphism

    Kolla, A., Koutis, I., Madan, V. & Sinop, A. K., Jul 1 2018, 45th International Colloquium on Automata, Languages, and Programming, ICALP 2018. Kaklamanis, C., Marx, D., Chatzigiannakis, I. & Sannella, D. (eds.). Schloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing, 84. (Leibniz International Proceedings in Informatics, LIPIcs; vol. 107).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    2 Scopus citations
  • 2017

    Directed hamiltonicity and out-branchings via generalized laplacians

    Björklund, A., Kaski, P. & Koutis, I., Jul 1 2017, 44th International Colloquium on Automata, Languages, and Programming, ICALP 2017. Muscholl, A., Indyk, P., Kuhn, F. & Chatzigiannakis, I. (eds.). Schloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing, 91. (Leibniz International Proceedings in Informatics, LIPIcs; vol. 80).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    13 Scopus citations
  • 2016

    On Fully Dynamic Graph Sparsifiers

    Abraham, I., Durfee, D., Koutis, I., Krinninger, S. & Peng, R., Dec 14 2016, Proceedings - 57th Annual IEEE Symposium on Foundations of Computer Science, FOCS 2016. IEEE Computer Society, p. 335-344 10 p. 7782947. (Proceedings - Annual IEEE Symposium on Foundations of Computer Science, FOCS; vol. 2016-December).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    39 Scopus citations
  • 2015

    Spanning edge centrality: Large-scale computation and applications

    Mavroforakis, C., Garcia-Lebron, R., Koutis, I. & Terzi, E., May 18 2015, WWW 2015 - Proceedings of the 24th International Conference on World Wide Web. Association for Computing Machinery, Inc, p. 732-742 11 p. (WWW 2015 - Proceedings of the 24th International Conference on World Wide Web).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    30 Scopus citations
  • 2014

    Simple parallel and distributed algorithms for spectral graph sparsification

    Koutis, I., 2014, SPAA 2014 - Proceedings of the 26th ACM Symposium on Parallelism in Algorithms and Architectures. Association for Computing Machinery, p. 61-66 6 p. (Annual ACM Symposium on Parallelism in Algorithms and Architectures).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    16 Scopus citations
  • 2012

    Improved spectral sparsification and numerical algorithms for SDD matrices

    Koutis, I., Levin, A. & Peng, R., 2012, 29th International Symposium on Theoretical Aspects of Computer Science, STACS 2012. p. 266-277 12 p. (Leibniz International Proceedings in Informatics, LIPIcs; vol. 14).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    28 Scopus citations

  • Train marshalling is fixed parameter tractable

    Brueggeman, L., Fellows, M., Fleischer, R., Lackner, M., Komusiewicz, C., Koutis, Y., Pfandler, A. & Rosamond, F., 2012, Fun with Algorithms - 6th International Conference, FUN 2012, Proceedings. p. 51-56 6 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 7288 LNCS).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    8 Scopus citations
  • 2011

    A nearly-m log n time solver for SDD linear systems

    Koutis, I., Miller, G. L. & Peng, R., 2011, Proceedings - 2011 IEEE 52nd Annual Symposium on Foundations of Computer Science, FOCS 2011. p. 590-598 9 p. 6108220. (Proceedings - Annual IEEE Symposium on Foundations of Computer Science, FOCS).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    142 Scopus citations

  • Near linear-work parallel SDD solvers, low-diameter decomposition, and low-stretch subgraphs

    Blelloch, G. E., Gupta, A., Koutis, I., Miller, G. L., Peng, R. & Tangwongsan, K., 2011, SPAA'11 - Proceedings of the 23rd Annual Symposium on Parallelism in Algorithms and Architectures. p. 13-22 10 p. (Annual ACM Symposium on Parallelism in Algorithms and Architectures).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    11 Scopus citations
  • 2010

    Approaching optimality for solving SDD linear systems

    Koutis, I., Miller, G. L. & Peng, R., 2010, Proceedings - 2010 IEEE 51st Annual Symposium on Foundations of Computer Science, FOCS 2010. IEEE Computer Society, p. 235-244 10 p. 5671167. (Proceedings - Annual IEEE Symposium on Foundations of Computer Science, FOCS).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    117 Scopus citations

  • Hierarchical diagonal blocking and precision reduction applied to combinatorial multigrid

    Blelloch, G. E., Koutis, I., Miller, G. L. & Tangwongsan, K., 2010, 2010 ACM/IEEE International Conference for High Performance Computing, Networking, Storage and Analysis, SC 2010. 5644892. (2010 ACM/IEEE International Conference for High Performance Computing, Networking, Storage and Analysis, SC 2010).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    5 Scopus citations
  • 2009

    Combinatorial preconditioners and multilevel solvers for problems in computer vision and image processing

    Koutis, I., Miller, G. L. & Tolliver, D., 2009, Advances in Visual Computing - 5th International Symposium, ISVC 2009, Proceedings. PART 1 ed. p. 1067-1078 12 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 5875 LNCS, no. PART 1).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    22 Scopus citations

  • Limits and applications of group algebras for parameterized problems

    Koutis, I. & Williams, R., 2009, Automata, Languages and Programming - 36th International Colloquium, ICALP 2009, Proceedings. PART 1 ed. p. 653-664 12 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 5555 LNCS, no. PART 1).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    81 Scopus citations

  • Spectral counting of triangles in power-law networks via element-wise sparsification

    Tsourakakis, C. E., Drineas, P., Michelakis, E., Koutis, I. & Faloutsos, C., 2009, Proceedings of the 2009 International Conference on Advances in Social Network Analysis and Mining, ASONAM 2009. p. 66-71 6 p. (Proceedings of the 2009 International Conference on Advances in Social Network Analysis and Mining, ASONAM 2009).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    20 Scopus citations
  • 2008

    Faster algebraic algorithms for path and packing problems

    Koutis, I., 2008, Automata, Languages and Programming - 35th International Colloquium, ICALP 2008, Proceedings. PART 1 ed. p. 575-586 12 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 5125 LNCS, no. PART 1).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    153 Scopus citations
  • 2007

    A linear work, O(n1/6) time, parallel algorithm for solving planar Laplacians

    Koutis, I. & Miller, G. L., 2007, Proceedings of the 18th Annual ACM-SIAM Symposium on Discrete Algorithms, SODA 2007. Association for Computing Machinery, p. 1002-1011 10 p. (Proceedings of the Annual ACM-SIAM Symposium on Discrete Algorithms; vol. 07-09-January-2007).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    30 Scopus citations