Juho Karppa

Research outputs

  1. 2019
  2. E-pub ahead of print

    An adaptive prefix-assignment technique for symmetry reduction

    Junttila, T., Karppa, M., Kaski, P. & Kohonen, J., 8 Mar 2019, In : JOURNAL OF SYMBOLIC COMPUTATION.

    Research output: Contribution to journalArticleScientificpeer-review

  3. Published

    Probabilistic tensors and opportunistic boolean matrix multiplication

    Karppa, M. & Kaski, P., 1 Jan 2019, Proceedings of the Thirtieth Annual ACM-SIAM Symposium on Discrete Algorithms. SIAM, p. 496-515 20 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  4. 2018
  5. Published

    A faster subquadratic algorithm for finding outlier correlations

    Karppa, M., Kaski, P. & Kohonen, J., 1 Jul 2018, In : ACM Transactions on Algorithms. 14, 3, p. 1-26 31.

    Research output: Contribution to journalArticleScientificpeer-review

  6. 2017
  7. Published

    An adaptive prefix-assignment technique for symmetry reduction

    Junttila, T., Karppa, M., Kaski, P. & Kohonen, J., 2017, Theory and Applications of Satisfiability Testing – SAT 2017 - 20th International Conference, Proceedings. Springer Verlag, p. 101-118 18 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 10491 LNCS).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  8. 2016
  9. Published

    Explicit Correlation Amplifiers for Finding Outlier Correlations in Deterministic Subquadratic Time

    Karppa, M., Kaski, P., Kohonen, J. & Ó Catháin, P., 22 Aug 2016, 24th Annual European Symposium on Algorithms: ESA 2016, August 22–24, 2016, Aarhus, Denmark. Sankowski, P. & Zaroliagis, C. (eds.). Schloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing, p. 1-17 17 p. 52. (Leibniz International Proceedings in Informatics; vol. 57).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  10. Published

    A faster subquadratic algorithm for finding outlier correlations

    Karppa, M., Kaski, P. & Kohonen, J., 2016, Proceedings of the Annual ACM-SIAM Symposium on Discrete Algorithms: SODA 2016, Arlington, VA, USA, January 10-12, 2016. Krauthgamer, R. (ed.). Vol. 2. p. 1288-1305 18 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  11. 2014
  12. Published

    2D Appearance Based Techniques for Tracking the Signer Configuration in Sign Language Video Recordings

    Viitaniemi, V., Karppa, M. & Laaksonen, J., 2014, International conference on image analysis and recognition, ICIAR, Vilamoura, Portugal, October 22-24 2014. p. 29-38

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  13. Published

    Estimating Head Pose and State of Facial Elements for Sign Language Video

    Luzardo, M., Viitaniemi, V., Karppa, M., Laaksonen, J. & Jantunen, T., 2014, International conference on language resources and evaluation, LREC, Reykjavik, Iceland, May 26-31 2014.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  14. Published

    Experiments on Recognising the Handshape in Blobs Extracted from Sign Language Videos

    Viitaniemi, V., Karppa, M. & Laaksonen, J., 2014, International conference on pattern recognition, ICPR, Stockholm, Sweden, August 24-28 2014.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  15. Published

    SLMotion - An extensible sign language oriented video analysis tool

    Karppa, M., Viitaniemi, V., Luzardo, M., Laaksonen, J. & Jantunen, T., 2014, International conference on language resources and evaluation, LREC, Reykjavik, Iceland, May 26-31 2014. p. 1886-1891

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  16. Published

    S-pot - a benchmark in spotting signs within continuous signing

    Viitaniemi, V., Jantunen, T., Savolainen, L., Karppa, M. & Laaksonen, J., 2014, International conference on language resources and evaluation, LREC, Reykjavik, Iceland, May 26-31 2014. p. 1892-1897

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  17. 2013
  18. Published

    Detecting Hand-Head Occlusions in Sign Language Video

    Viitaniemi, V., Karppa, M., Laaksonen, J. & Jantunen, T., 2013, 18th Scandinavian Conference on Image Analysis, (SCIA 2013), Espoo, Finland, 17-20 June 2013. Kämäräinen, J-K. & Koskela, M. (eds.). Espoo, p. 361-372 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 7944).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  19. Published

    Head Pose Estimation for Sign Language Video

    Luzardo, M., Karppa, M., Laaksonen, J. & Jantunen, T., 2013, 18th Scandinavian Conference on Image Analysis, (SCIA 2013), Espoo, Finland, 17-20 June 2013. Espoo, p. 349-360 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 7944).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  20. Published

    The head as a place of articulation: From automated detection to linguistic analysis

    Jantunen, T., Viitaniemi, V., Karppa, M. & Laaksonen, J., 2013, 11th Theoretical Issues in Sign Language Research conference (TISLR 2013), London, UK, July 10-13, 2013.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  21. 2012
  22. Published

    Comparing computer vision analysis of signed language video with motion capture recordings

    Karppa, M., Jantunen, T., Viitaniemi, V., Laaksonen, J., Burger, B. & Weerdt, D. D., 2012, 8th Language Resources and Evaluation Conference (LREC 2012), Istanbul, Turkey, May 21-27,2012. Istanbul, p. 2421-2425

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  23. 2011
  24. Published

    Method for visualisation and analysis of hand and head movements in sign language video

    Karppa, M., Jantunen, T., Koskela, M., Laaksonen, J. & Viitaniemi, V., 2011, The 2nd Gesture and Speech in Interaction conference (GESPIN 2011). Bielefeld

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

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