Stephen Alstrup

Stephen Alstrup

Professor

Member of:

    ORCID: 0000-0001-7896-8386

    Publication year:
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    1 - 50 out of 50Page size: 50
    1. 2021
    2. 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 proceeding › Article in proceedings › Research › peer-review

    3. 2020
    4. 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 proceeding › Article in proceedings › Research › peer-review

    5. 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 proceeding › Article in proceedings › Research › peer-review

    6. 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 proceeding › Article in proceedings › Research › peer-review

    7. 2019
    8. 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 proceeding › Article in proceedings › Research › peer-review

    9. 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 proceeding › Article in proceedings › Research › peer-review

    10. 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 proceeding › Article in proceedings › Research › peer-review

    11. 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 proceeding › Article in proceedings › Research › peer-review

    12. 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 proceeding › Article in proceedings › Research › peer-review

    13. 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 proceeding › Article in proceedings › Research › peer-review

    14. 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 proceeding › Article in proceedings › Research › peer-review

    15. 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 proceeding › Article in proceedings › Research › peer-review

    16. 2018
    17. 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 proceeding › Article in proceedings › Research › peer-review

    18. 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 proceeding › Article in proceedings › Research › peer-review

    19. 2017
    20. 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 proceeding › Article in proceedings › Research › peer-review

    21. 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 proceeding › Article in proceedings › Research › peer-review

    22. 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 proceeding › Article in proceedings › Research › peer-review

    23. 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 proceeding › Article in proceedings › Research › peer-review

    24. 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 proceeding › Article in proceedings › Research › peer-review

    25. 2016
    26. 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 proceeding › Article in proceedings › Research › peer-review

    27. 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 proceeding › Article in proceedings › Research › peer-review

    28. 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 proceeding › Article in proceedings › Research › peer-review

    29. 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 proceeding › Article in proceedings › Research › peer-review

    30. 2015
    31. 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 proceeding › Article in proceedings › Research › peer-review

    32. 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 proceeding › Article in proceedings › Research › peer-review

    33. 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 proceeding › Article in proceedings › Research › peer-review

    34. 2014
    35. 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 proceeding › Article in proceedings › Research › peer-review

    36. 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 proceeding › Article in proceedings › Research › peer-review

    37. 2006
    38. 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 proceeding › Book chapter › Research › peer-review

    39. 2005
    40. 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 proceeding › Article in proceedings › Research › peer-review

    41. 2003
    42. Published

      Labeling schemes for small distances in trees

      Alstrup, Stephen, Bille, P. & Rauhe, T., 2003, Proceedings of the Fourteenth Annual ACM-SIAM Symposium on Discrete Algorithms (SODA). p. 689-698 10 p.

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

    43. 2002
    44. Published

      Improved labeling scheme for ancestor queries

      Alstrup, Stephen & Rauhe, T., 2002, Proceedings of the thirteenth annual ACM-SIAM symposium on Discrete algorithms (SODA). p. 947-953 7 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

    45. Published

      Nearest common ancestors: a survey and a new distributed algorithm

      Alstrup, Stephen, Gavoille, C., Kaplan, H. & Rauhe, T., 2002, Proceedings of the fourteenth annual ACM symposium on Parallel algorithms and architectures. p. 258-264 7 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

    46. Published

      Small induced-universal graphs and compact implicit graph representations

      Alstrup, Stephen & Rauhe, T., 2002, Foundations of Computer Science, 2002. Proceedings. The 43rd Annual IEEE Symposium on. p. 53-62 10 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

    47. Published

      Time and space efficient multi-method dispatching

      Alstrup, Stephen, Brodal, G. S., Gørtz, I. L. & Rauhe, T., 2002, Algorithm Theory—SWAT 2002. Springer Science+Business Media, p. 20-29 10 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

    48. 2001
    49. Published

      A cell probe lower bound for dynamic nearest-neighbor searching

      Alstrup, Stephen, Husfeldt, T. & Rauhe, T., 2001, Proceedings of the twelfth annual ACM-SIAM symposium on Discrete algorithms. p. 779-780 2 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

    50. Published

      Optimal static range reporting in one dimension

      Alstrup, Stephen, Brodal, G. S. & Rauhe, T., 2001, Proceedings of the thirty-third annual ACM symposium on Theory of computing. p. 476-482 7 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

    51. 2000
    52. Published

      Improved algorithms for finding level ancestors in dynamic trees

      Alstrup, Stephen & Holm, J., 2000, Automata, Languages and Programming (ICALP). Springer Science+Business Media, p. 73-84 12 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

    53. Published

      Maintaining center and median in dynamic trees

      Alstrup, Stephen, Holm, Jacob & Thorup, Mikkel, 2000, Algorithm Theory-SWAT 2000. Springer Science+Business Media, Vol. 1851. p. 46-56 11 p. (Lecture notes in computer science).

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

    54. Published

      New data structures for orthogonal range searching

      Alstrup, Stephen, Stolting Brodal, G. & Rauhe, T., 2000, Foundations of Computer Science, 2000. Proceedings. 41st Annual Symposium on. p. 198-207 10 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

    55. Published

      Pattern matching in dynamic texts

      Alstrup, Stephen, Brodal, G. S. & Rauhe, T., 2000, Proceedings of the eleventh annual ACM-SIAM symposium on Discrete algorithms. p. 819-828 10 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

    56. Published

      Word encoding tree connectivity works

      Alstrup, Stephen, Secher, J. P. & Thorup, Mikkel, 2000, Proceedings of the eleventh annual ACM-SIAM symposium on Discrete algorithms. p. 498-499 2 p.

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

    57. 1999
    58. Published

      Worst-case and amortised optimality in union-find

      Alstrup, Stephen, Ben-Amram, A. M. & Rauhe, T., 1999, Proceedings of the thirty-first annual ACM symposium on Theory of computing. p. 499-506 8 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

    59. 1998
    60. Published

      Direct Routing on Trees

      Alstrup, Stephen, Holm, J., de Lichtenberg, K. & Thorup, Mikkel, 1998, Proceedings of the ninth annual ACM-SIAM symposium on Discrete algorithms. p. 342-349 8 p. (9th ACM-SIAM Symposium on Discrete Algorithms (SODA)).

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

    61. Published

      Marked ancestor problems

      Alstrup, Stephen, Husfeldt, T. & Rauhe, T., 1998, Foundations of Computer Science, 1998. Proceedings. 39th Annual Symposium on. p. 534-543 10 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

    62. 1997
    63. Published

      Finding cores of limited length

      Alstrup, Stephen, Lauridsen, P. W., Sommerlund, P. & Thorup, Mikkel, 1997, Proceedings of the 5th International Workshop on Algorithms and Data Structures (WADS). Springer, Vol. 1272. p. 45-54 11 p. (Lecture notes in computer science).

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

    64. Published

      Minimizing diameters of dynamic trees

      Alstrup, Stephen, Holm, J., de Lichtenberg, K. & Thorup, Mikkel, 1997, Automata, Languages and Programming. Springer Science+Business Media, p. 270-280 11 p. (Lecture notes in computer science, Vol. 1256).

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

    65. 1996
    66. Published

      Generalized dominators for structured programs

      Alstrup, Stephen, Lauridsen, P. W. & Thorup, Mikkel, 1996, Static Analysis. Springer Science+Business Media, p. 42-51 10 p. (Lecture notes in computer science, Vol. 1145).

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

    67. Optimal pointer algorithm for finding nearest common ancestors in dynamic trees

      Alstrup, Stephen & Thorup, M., 1996, Proceedings of the 5th Scandinavian Workshop on Algorithm Theory (SWAT), LNCS 1097. p. 212-222 11 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

    68. Published

      Optimal pointer algorithms for finding nearest common ancestors in dynamic trees

      Alstrup, Stephen & Thorup, Mikkel, 1996, Algorithm Theory—SWAT'96. Springer Science+Business Media, p. 212-222 11 p. (Lecture notes in computer science, Vol. 1097).

      Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

    ID: 37604428