Jakob Nordström

Jakob Nordström

Professor

Member of:


    1. Cumulative space in black-white pebbling and resolution

      Alwen, J., De Rezende, S. F., Nordström, Jakob & Vinyals, M., 1 Nov 2017, 8th Innovations in Theoretical Computer Science Conference, ITCS 2017. Papadimitriou, C. H. (ed.). Schloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing, (Leibniz International Proceedings in Informatics, LIPIcs, Vol. 67).

      Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    2. Narrow proofs may be maximally long

      Atserias, A., Lauria, M. & Nordström, Jakob, 2014, Proceedings - IEEE 29th Conference on Computational Complexity, CCC 2014. IEEE Computer Society Press, p. 286-297 12 p. 6875497. (Proceedings of the Annual IEEE Conference on Computational Complexity).

      Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    3. Narrow proofs may be maximally long

      Atserias, A., Lauria, M. & Nordström, Jakob, Feb 2016, In: ACM Transactions on Computational Logic. 17, 3, 19.

      Research output: Contribution to journalJournal articleResearchpeer-review

    4. Clique is hard on average for regular resolution

      Atserias, A., Lauria, M., Bonacina, I., Nordström, Jakob, De Rezende, S. F. & Razborov, A., 20 Jun 2018, STOC 2018 - Proceedings of the 50th Annual ACM SIGACT Symposium on Theory of Computing. Henzinger, M., Kempe, D. & Diakonikolas, I. (eds.). ACM Association for Computing Machinery, p. 646-659 14 p. (Proceedings of the Annual ACM Symposium on Theory of Computing).

      Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    5. Some trade-off results for polynomial calculus

      Beck, C., Nordström, Jakob & Tang, B., 2013, STOC 2013 - Proceedings of the 2013 ACM Symposium on Theory of Computing. p. 813-822 10 p. (Proceedings of the Annual ACM Symposium on Theory of Computing).

      Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    6. Published

      Understanding Space in Proof Complexity: Separations and Trade-offs via Substitutions

      Ben-Sasson, E. & Nordström, Jakob, 1 Aug 2010.

      Research output: Working paperResearch

    7. Published

      A Space Hierarchy for $k$-DNF Resolution

      Ben-Sasson, E. & Nordström, Jakob, 1 Apr 2009.

      Research output: Working paperResearch

    8. Published

      Short proofs may be spacious: An optimal separation of space and length in resolution

      Ben-Sasson, E. & Nordström, Jakob, 2008, Proceedings of the 49th Annual IEEE Symposium on Foundations of Computer Science, FOCS 2008. p. 709-718 10 p. 4691003. (Proceedings - Annual IEEE Symposium on Foundations of Computer Science, FOCS).

      Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    9. Published

      Certified Core-Guided MaxSAT Solving

      Berg, J., Bogaerts, B., Nordström, Jakob, Oertel, A. & Vandesande, D., 2023, Automated Deduction – CADE 29 - 29th International Conference on Automated Deduction, Proceedings. Pientka, B. & Tinelli, C. (eds.). Springer Science and Business Media Deutschland GmbH, p. 1-22 22 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Vol. 14132 LNAI).

      Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    10. Near-Optimal Lower Bounds on Quantifier Depth and Weisfeiler - Leman Refinement Steps

      Berkholz, C. & Nordström, Jakob, 5 Jul 2016, Proceedings of the 31st Annual ACM-IEEE Symposium on Logic in Computer Science, LICS 2016. Institute of Electrical and Electronics Engineers Inc., p. 267-276 10 p. (Proceedings - Symposium on Logic in Computer Science, Vol. 05-08-July-2016).

      Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    11. Supercritical space-width trade-offs for resolution

      Berkholz, C. & Nordström, Jakob, 1 Aug 2016, 43rd International Colloquium on Automata, Languages, and Programming, ICALP 2016. Rabani, Y., Chatzigiannakis, I., Sangiorgi, D. & Mitzenmacher, M. (eds.). Schloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing, 57. (Leibniz International Proceedings in Informatics, LIPIcs, Vol. 55).

      Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    12. Published

      Near-optimal Lower Bounds on Quantifier Depth and Weisfeiler-Leman Refinement Steps

      Berkholz, C. & Nordström, Jakob, 2023, In: Journal of the ACM. 70, 5, p. 1-32 32.

      Research output: Contribution to journalJournal articleResearchpeer-review

    13. Published

      Supercritical space-width trade-offs for resolution

      Berkholz, C. & Nordström, Jakob, 2020, In: SIAM Journal on Computing. 49, 1, p. 98-118

      Research output: Contribution to journalJournal articleResearchpeer-review

    14. Published

      Separations of Matroid Freeness Properties

      Bhattacharyya, A., Grigorescu, E., Nordström, Jakob & Xie, N., 1 Aug 2010.

      Research output: Working paperResearch

    15. Published

      Certified Dominance and Symmetry Breaking for Combinatorial Optimisation

      Bogaerts, B., Gocht, S., McCreesh, C. & Nordström, Jakob, 2023, In: Journal of Artificial Intelligence Research. 77, p. 1539-1589 51 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    16. Published

      Proof Complexity and SAT Solving

      Buss, S. & Nordström, Jakob, 2021, Handbook of Satisfiability. Biere, A., Heule, M. J. H., van Maaren, H. & Walsh, T. (eds.). 2 ed. IMIA and IOS Press, p. 233 - 350 (Frontiers in Artificial Intelligence and Applications, Vol. 336).

      Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

    17. Hardness of Approximation in PSPACE and Separation Results for Pebble Games (Extended Abstract)

      Chan, S. M., Lauria, M., Nordström, Jakob & Vinyals, M., 1 Oct 2015, Proceedings of the 56th Annual IEEE Symposium on Foundations of Computer Science (FOCS~'15). IEEE, p. 466-485 20 p.

      Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    18. Published

      Graph Colouring Is Hard on Average for Polynomial Calculus and Nullstellensatz

      Conneryd, J., de Rezende, S. F., Nordström, Jakob, Pang, Shuo & Risse, K., 2023, Proceedings - 2023 IEEE 64th Annual Symposium on Foundations of Computer Science, FOCS 2023. IEEE Computer Society Press, 11 p. 45. (Proceedings - Annual IEEE Symposium on Foundations of Computer Science, FOCS).

      Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    19. Published

      Automating algebraic proof systems is NP-hard

      De Rezende, S. F., Göös, M., Nordström, Jakob, Pitassi, T., Robere, R. & Sokolov, D., 2021, STOC 2021 - Proceedings of the 53rd Annual ACM SIGACT Symposium on Theory of Computing. Khuller, S. & Williams, V. V. (eds.). Association for Computing Machinery, Inc., p. 209-222

      Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    20. Published

      Learn to Relax: Integrating 0-1 Integer Linear Programming with Pseudo-Boolean Conflict-Driven Search

      Devriendt, J., Gleixner, A. & Nordström, Jakob, 2021, In: Constraints. 26, p. 26–55 30 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    21. Trade-offs between time and memory in a tighter model of CDCL SAT solvers

      Elffers, J., Johannsen, J., Lauria, M., Magnard, T., Nordström, Jakob & Vinyals, M., 2016, Theory and Applications of Satisfiability Testing – SAT 2016 - 19th International Conference, Proceedings. Le Berre, D. & Creignou, N. (eds.). Springer Verlag, p. 160-176 17 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Vol. 9710).

      Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    22. Seeking practical CDCL insights from theoretical SAT benchmarks

      Elffers, J., Cru, J. G., Gocht, S., Nordström, Jakob & Simon, L., 2018, Proceedings of the 27th International Joint Conference on Artificial Intelligence, IJCAI 2018. Lang, J. (ed.). International Joint Conferences on Artificial Intelligence, p. 1300-1308 9 p. (IJCAI International Joint Conference on Artificial Intelligence, Vol. 2018-July).

      Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    23. Published

      A Cardinal Improvement to Pseudo-Boolean Solving

      Elffers, J. & Nordström, Jakob, 1 Feb 2020, Proceedings of the 34th AAAI Conference on Artificial Intelligence (AAAI '20). AAAI Press, p. 1495-1503 9 p.

      Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    24. Published

      Justifying All Differences Using Pseudo-Boolean Reasoning

      Elffers, J., Gocht, S., McCreesh, C. & Nordström, Jakob, 1 Feb 2020, Proceedings of the 34th AAAI Conference on Artificial Intelligence (AAAI '20). AAAI Press, p. 1486-1494 9 p.

      Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    25. Using combinatorial benchmarks to probe the reasoning power of pseudo-boolean solvers

      Elffers, J., Giráldez-Cru, J., Nordström, Jakob & Vinyals, M., 2018, Theory and Applications of Satisfiability Testing – SAT 2018 - 21st International Conference, SAT 2018, Held as Part of the Federated Logic Conference, FloC 2018, Proceedings. Beyersdorff, O. & Wintersteiger, C. M. (eds.). Springer Verlag, p. 75-93 19 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Vol. 10929 LNCS).

      Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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