Stephen Alstrup

Stephen Alstrup

Professor

Member of:


    1. 2022
    2. Published

      Constructing light spanners deterministically in near-linear time

      Alstrup, Stephen, Dahlgaard, S., Filtser, A., Stöckel, M. & Wulff-Nilsen, Christian, 12 Mar 2022, In: Theoretical Computer Science. 907, p. 82-112

      Research output: Contribution to journalJournal articlepeer-review

    3. 2021
    4. Published

      Unsupervised multi-index semantic hashing

      Hansen, C., Hansen, C., Simonsen, Jakob Grue, Alstrup, Stephen & Lioma, Christina, 2021, The Web Conference 2021 - Proceedings of the World Wide Web Conference, WWW 2021. Association for Computing Machinery, Inc, p. 2879-2889 (The Web Conference 2021 - Proceedings of the World Wide Web Conference, WWW 2021).

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

    5. 2020
    6. Published

      Content-aware Neural Hashing for Cold-start Recommendation

      Hansen, C., Hansan, C., Simonsen, Jakob Grue, Alstrup, Stephen & Lioma, Christina, 2020, SIGIR 2020 - Proceedings of the 43rd International ACM SIGIR Conference on Research and Development in Information Retrieval. Association for Computing Machinery, p. 971-980 10 p.

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

    7. Published

      Factuality Checking in News Headlines with Eye Tracking

      Hansen, C., Hansen, C., Simonsen, Jakob Grue, Larsen, B., Alstrup, Stephen & Lioma, Christina, 2020, SIGIR 2020 - Proceedings of the 43rd International ACM SIGIR Conference on Research and Development in Information Retrieval. Association for Computing Machinery, p. 2013-2016 4 p.

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

    8. Published

      Near-optimal induced universal graphs for cycles and paths

      Abrahamsen, Mikkel, Alstrup, Stephen, Holm, Jacob, Knudsen, M. B. T. & Stöckel, M., 2020, In: Discrete Applied Mathematics. 282, p. 1-13 13 p.

      Research output: Contribution to journalJournal articlepeer-review

    9. Published

      Unsupervised Semantic Hashing with Pairwise Reconstruction

      Hansen, C., Hansen, C., Simonsen, Jakob Grue, Alstrup, Stephen & Lioma, Christina, 2020, SIGIR 2020 - Proceedings of the 43rd International ACM SIGIR Conference on Research and Development in Information Retrieval. Association for Computing Machinery, p. 2009-2012 4 p.

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

    10. 2019
    11. Published

      Contextually propagated term weights for document representation

      Hansen, C., Hansen, C., Alstrup, Stephen, Simonsen, Jakob Grue & Lioma, Christina, 18 Jul 2019, SIGIR 2019 - Proceedings of the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval. Association for Computing Machinery, p. 897-900 (SIGIR 2019 - Proceedings of the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval).

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

    12. Published

      Adjacency Labeling Schemes and Induced-Universal Graphs

      Alstrup, Stephen, Kaplan, H., Thorup, Mikkel & Zwick, U., 2019, In: SIAM Journal on Discrete Mathematics. 33, 1, p. 116-137

      Research output: Contribution to journalJournal articlepeer-review

    13. Published

      Constructing light spanners deterministically in near-linear time

      Alstrup, Stephen, Dahlgaard, S., Filtser, A., Stöckel, M. & Wulff-Nilsen, Christian, 2019, 27th Annual European Symposium on Algorithms, ESA 2019. Bender, M. A., Svensson, O. & Herman, G. (eds.). Schloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing, 15 p. 4. (Leibniz International Proceedings in Informatics, LIPIcs, Vol. 144).

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

    14. Published

      Detecting ghostwriters in high schools

      Stavngaard, M., Sørensen, A., Lorenzen, S., Hjuler, N. & Alstrup, Stephen, 2019, ESANN 2019 - Proceedings, 27th European Symposium on Artificial Neural Networks, Computational Intelligence and Machine Learning. ESANN (i6doc.com), p. 197-202 6 p. (ESANN 2019 - Proceedings, 27th European Symposium on Artificial Neural Networks, Computational Intelligence and Machine Learning).

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

    15. Published

      Investigating Writing Style Development in High School

      Lorenzen, S. S., Hjuler, N. O. D. & Alstrup, Stephen, 2019, Proceedings of The 12th International Conference on Educational Data Mining (EDM 2019). Université du Québec à Montréal, p. 572-575

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

    16. Published

      Modelling End-of-Session Actions in Educational Systems

      Hansen, C., Hansen, C., Alstrup, Stephen & Lioma, Christina, 2019, Proceedings of The 12th International Conference on Educational Data Mining (EDM 2019). Université du Québec à Montréal, p. 306-311

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

    17. Published

      Modelling Sequential Music Track Skips using a Multi-RNN Approach

      Hansen, C., Hansen, C., Alstrup, Stephen, Simonsen, Jakob Grue & Lioma, Christina, 2019, WSDM '19: Proceedings of the Twelfth ACM International Conference on Web Search and Data Mining. Association for Computing Machinery, 4 p.

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

    18. Published

      Neural check-worthiness ranking with weak supervision: Finding sentences for fact-checking

      Hansen, C., Hansen, C., Alstrup, Stephen, Simonsen, Jakob Grue & Lioma, Christina, 2019, The Web Conference 2019 - Companion of the World Wide Web Conference, WWW 2019. Association for Computing Machinery, p. 994-1000 7 p.

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

    19. Published

      Neural speed reading with structural-jump-LSTM

      Hansen, C., Hansen, C., Alstrup, Stephen, Simonsen, Jakob Grue & Lioma, Christina, 2019.

      Research output: Contribution to conferencePaperResearchpeer-review

    20. Published

      Unsupervised neural generative semantic hashing

      Hansen, C., Hansen, C., Simonsen, Jakob Grue, Alstrup, Stephen & Lioma, Christina, 2019, SIGIR 2019 - Proceedings of the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval. Association for Computing Machinery, p. 735-744 10 p.

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

    21. 2018
    22. Published

      A Hamiltonian Cycle in the Square of a 2-connected Graph in Linear Time

      Alstrup, Stephen, Georgakopoulos, A., Rotenberg, E. & Thomassen, C., 2018, Proceedings of the Annual ACM-SIAM Symposium on Discrete Algorithms. Czumaj, A. (ed.). Society for Industrial and Applied Mathematics, p. 1645-1649

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

    23. Published

      Tracking behavioral patterns among students in an online educational system

      Lorenzen, S., Hjuler, N. & Alstrup, Stephen, 2018, Proceedings of the 11'th International Conference on Educational Data Mining. EDM / Educational Data Mining, p. 280-285

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

    24. 2017
    25. Published

      On predicting student performance using low-rank matrix factorization techniques

      Lorenzen, S. S., Pham, D. N. & Alstrup, Stephen, Oct 2017, ECEL17 - Proceedings of the 16th European Conference on e-Learning. Peres, P. & Mesquita, A. (eds.). Academic Conferences and Publishing International, p. 326-334 9 p.

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

    26. Published

      Optimal induced universal graphs and adjacency labeling for trees

      Alstrup, Stephen, Dahlgaard, S. & Knudsen, M. B. T., Sep 2017, In: Journal of the ACM. 64, 4, 22 p., 27.

      Research output: Contribution to journalJournal articlepeer-review

    27. Published

      Sequence Modeling for Analysing Student Interaction with Educational Systems

      Hansen, C., Hansen, C., Hjuler, N. O. D., Alstrup, Stephen & Lioma, Christina, 25 Jun 2017, Proceedings of the 10th International Conference on Educational Data Mining, EDM 2017, Wuhan, Hubei, China, June 25-28, 2017. Hu, X., Barnes, T., Hershkovitz, A. & Paquette, L. (eds.). International Educational Data Mining Society (IEDMS), p. 232-237 (Proceedings of the 10th International Conference on Educational Data Mining, EDM 2017, Wuhan, Hubei, China, June 25 – 28, 2017).

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

    28. Published

      DABAI: A data driven project for e-Learning in Denmark

      Alstrup, Stephen, Hansen, C., Hansen, C., Hjuler, N., Lorenzen, S. & Pham, N., 1 Jan 2017, ECEL17 - Proceedings of the 16th European Conference on e-Learning. Peres, P. & Mesquita, A. (eds.). Academic Conferences and Publishing International, p. 18-24 7 p.

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

    29. Published

      Near-Optimal Induced Universal Graphs for Bounded Degree Graphs

      Abrahamsen, Mikkel, Alstrup, Stephen, Holm, Jacob, Knudsen, M. B. T. & Stöckel, M., 2017, 44th International Colloquium on Automata, Languages, and Programming (ICALP 201. Chatzigiannaki, I., Indyk, P., Kuhn, F. & Muscholl, A. (eds.). Schloss Dagstuhl - Leibniz-Zentrum für Informatik, p. 1-14 128. (Leibniz International Proceedings in Informatics (LIPIcs), Vol. 80).

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

    30. Published

      Smart city analytics: ensemble-learned prediction of citizen home care

      Hansen, C., Hansen, C., Alstrup, Stephen & Lioma, Christina, 2017, Proceedings of the 2017 ACM Conference on Information and Knowledge Management. Association for Computing Machinery, p. 2095-2098 4 p.

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

    31. 2016
    32. Published

      800.000 gode grunde til datalogi i skolen

      Alstrup, Stephen, Madsen, O. L. & Rootzen, H., 21 Apr 2016, In: Berlingske Tidende. p. 31 1 p.

      Research output: Contribution to journalContribution to newspaper - Comment/debate

    33. Published

      Distance labeling schemes for trees

      Alstrup, Stephen, Gørtz, I. L., Halvorsen, E. B. & Porat, E., 2016, 43rd International Colloquium on Automata, Languages, and Programming (ICALP 2016). Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 16 p. 132. (Leibniz International Proceedings in Informatics, Vol. 55).

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

    34. Published

      Possibilities and barriers for e-learning in primary school in Denmark

      Alstrup, Stephen & Rootzen, H., 2016, Proceedings of the 15th European Conference on e-Learning. Novotná, J. & Jancarík, A. (eds.). Academic Conferences and Publishing International, p. 18-24 7 p.

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

    35. Published

      Simpler, faster and shorter labels for distances in graphs

      Alstrup, Stephen, Gavoille, C., Halvorsen, E. B. & Petersen, H., 2016, Proceedings of the Twenty-Seventh Annual ACM-SIAM Symposium on Discrete Algorithms. Society for Industrial and Applied Mathematics, p. 338-350 13 p.

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

    36. Published

      Sublinear distance labeling

      Alstrup, Stephen, Dahlgaard, S., Knudsen, M. B. T. & Porat, E., 2016, 24th Annual European Symposium on Algorithms (ESA 2016). Sankowski, P. & Zaroliagis, C. (eds.). Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 15 p. 5. (Leibniz International Proceedings in Informatics, Vol. 57).

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

    37. 2015
    38. Published

      Adjacency labeling schemes and induced-universal graphs

      Alstrup, Stephen, Kaplan, H., Thorup, Mikkel & Zwick, U., 2015, Proceedings of the Forty-Seventh Annual ACM on Symposium on Theory of Computing, STOC 2015, Portland, OR, USA, June 14-17, 2015: STOC '15. Association for Computing Machinery, p. 625-634 10 p.

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

    39. Published

      High-school dropout prediction using machine learning: a Danish large-scale study

      Şara, N., Halland, R., Igel, Christian & Alstrup, Stephen, 2015, Proceedings. ESANN 2015: 23rd European Symposium on Artificial Neural Networks, Computational Intelligence and Machine Learning. Verleysen, M. (ed.). i6doc.com, p. 319-324 6 p.

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

    40. Published

      Optimal induced universal graphs and adjacency labeling for trees

      Alstrup, Stephen, Dahlgaard, S. & Knudsen, M. B. T., 2015, 2015 IEEE 56th Annual Symposium on Foundations of Computer Science (FOCS). IEEE, p. 1311-1326 16 p. (Symposium on Foundations of Computer Science. Annual Proceedings).

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

    41. 2014
    42. Published

      Danmark: et digitalt uland?

      Alstrup, Stephen, 21 Oct 2014

      Research output: Other contributionNet publication - Internet publicationCommunication

    43. Published

      Danish cross-disciplinary consortium with a focus on utilizing IT in schools: results and future directions

      Alstrup, Stephen, 2014. 1 p.

      Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

    44. Published

      Near-optimal labeling schemes for nearest common ancestors

      Alstrup, Stephen, Halvorsen, E. B. & Larsen, K. G., 2014, Proceedings of the Twenty-Fifth Annual ACM-SIAM Symposium on Discrete Algorithms . Chekuri, C. (ed.). Society for Industrial and Applied Mathematics, p. 972-982 11 p.

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

    45. Published

      Temporal context for authorship attribution: a study of Danish secondary schools

      Hansen, N. D., Lioma, Christina, Larsen, B. & Alstrup, Stephen, 2014, Multidisciplinary information retrieval: 7th Information Retrieval Facility Conference, IRFC 2014, Copenhagen, Denmark, November 10-12, 2014, Proceedings. Lamas, D. & Buitelaar, P. (eds.). Springer, p. 22-40 19 p. (Lecture notes in computer science, Vol. 8849).

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

    46. Published

      Union-find with constant time deletions

      Alstrup, Stephen, Thorup, Mikkel, Gørtz, I. L., Rauhe, T. & Zwick, U., 2014, In: A C M Transactions on Algorithms. 11, 1, 28 p., 6.

      Research output: Contribution to journalJournal articlepeer-review

    47. 2011
    48. Video consumption dramatically outpaces Internet capacity: exploration, challenges and solutions

      Alstrup, Stephen, Rauhe, T. & Brown, S., 2011, In: EBU Technical Review. 14 p.

      Research output: Contribution to journalJournal article

    49. 2009
    50. Published
    51. 2007
    52. Published

      PEER OF A PEER-TO-PEER NETWORK AND SUCH NETWORK

      Alstrup, Stephen & Rauhe, T., 1 Mar 2007

      Research output: Patent

    53. 2006
    54. Published

      Compact labeling scheme for ancestor queries

      Abiteboul, S., Alstrup, Stephen, Kaplan, H., Milo, T. & Rauhe, T., 2006, In: SIAM Journal on Computing. 35, 6, p. 1295-1309 15 p.

      Research output: Contribution to journalJournal articlepeer-review

    55. Published

      How P2P technology can change broadcasting as we know it

      Alstrup, Stephen & Rauhe, T., 2006, The International Broadcasting Convention, IBC.

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

    56. 2005
    57. Published

      Data live streaming system e.g. for music, has input broadcaster and several peers each generating loss resilient code representations of data from input broadcaster

      Alstrup, Stephen & Rauhe, T., 29 Sep 2005, IPC No. H04L-029/06, Patent No. WO2005091585-A1, 29 Sep 2005, Priority date 22 Mar 2004, Priority No. WODK000197

      Research output: Patent

    58. Black box for constant-time insertion in priority queues (note)

      Alstrup, Stephen, Husfeldt, T., Rauhe, T. & Thorup, Mikkel, 2005, In: ACM Transactions on Algorithms (TALG). 1, 1, p. 102-106 5 p.

      Research output: Contribution to journalJournal articlepeer-review

    59. Published

      Introducing Octoshape-a new technology for largescale streaming over the Internet

      Alstrup, Stephen & Rauhe, T., 2005, In: EBU Technical Review. 303

      Research output: Contribution to journalJournal articlepeer-review

    60. Published

      Labeling schemes for small distances in trees

      Alstrup, Stephen, Bille, P. & Rauhe, T., 2005, In: SIAM Journal on Discrete Mathematics. 19, 2, p. 448-462 15 p.

      Research output: Contribution to journalJournal articlepeer-review

    61. Maintaining information in fully dynamic trees with top trees

      Alstrup, Stephen, Holm, J., Lichtenberg, K. D. & Thorup, Mikkel, 2005, In: ACM Transactions on Algorithms (TALG). 1, 2, p. 243-264 22 p.

      Research output: Contribution to journalJournal articlepeer-review

    62. Published

      Union-find with constant time deletions

      Alstrup, Stephen, Gørtz, I. L., Rauhe, T., Thorup, Mikkel & Zwick, U., 2005, Automata, Languages and Programming (ICALP). Springer, p. 78-89 12 p.

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

    63. 2004
    64. Published

      Dynamic nested brackets

      Alstrup, Stephen, Husfeldt, T. & Rauhe, T., 2004, In: Information and Computation. 193, 2, p. 75-83 9 p.

      Research output: Contribution to journalJournal articlepeer-review

    65. Published

      Nearest common ancestors: A survey and a new algorithm for a distributed environment

      Alstrup, Stephen, Gavoille, C., Kaplan, H. & Rauhe, T., 2004, In: Theory of Computing Systems. 37, 3, p. 441-456 16 p.

      Research output: Contribution to journalJournal articlepeer-review

    Previous 1 2 Next

    ID: 37604428