Tampere University of Technology

TUTCRIS Research Portal

Ari Visa

  1. Published

    A Defect Detection Scheme for Web Surface Inspection

    Iivarinen, J., Heikkinen, K., Rauhamaa, J., Vuorimaa, P. & Visa, A., 2000, In : International Journal of Pattern Recognition and Artificial Intelligence. 14, 6, p. 735-755

    Research output: Contribution to journalArticleScientificpeer-review

  2. Published

    A face validation of a SOM-based financial benchmarking model

    Eklund, T., Back, B., Vanharanta, H. & Visa, A., 2008, In : Journal of Emerging Technologies in Accounting. 5, p. 109-127 19 p.

    Research output: Contribution to journalArticleScientificpeer-review

  3. Published

    Analysing financial performance with quaterly data using self-organizing maps

    Karlsson, J., Back, B., Vanharanta, H. & Visa, A., 2001, Turku: TUCS. 11 p. (TUCS Technical Report; vol. 430)

    Research output: Book/ReportCommissioned reportProfessional

  4. Published

    Analysis and comparison of multichannel SAR imaging algorithms

    Vehmas, R., Jylhä, J., Väilä, M. & Visa, A., May 2017, 2017 IEEE Radar Conference (RadarConf). IEEE, p. 340-345

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

  5. Published

    Analysis of bus delays in Tampere using rea-time data

    Kerminen, R., Hakulinen, E., Syrjärinne, P., Nummenmaa, J., Thanisch, P. & Visa, A., 2014, 10th ITS European Congress, Helsinki, Finland, 16-19.6.2014. Helsinki: ERTICO, p. 1-9 9 p. TP-SP 005

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

  6. Published

    Analysis on bus travel time through traffic light intersection

    Kerminen, R., Wang, C. & Visa, A., 2015, ITS World Congress 2015 Proceedings: Towards Intelligent Mobility – Better Use of Space. 10 p. EU-ITS-2051

    Research output: Chapter in Book/Report/Conference proceedingConference contributionProfessional

  7. Published

    An analysis of economic trends in the pulp and paper sector using self-organizing maps

    Länsiluoto, A., Back, B., Vanharanta, H. & Visa, A., 2002, In : Paperi ja puu. 84, 4, p. 246-252

    Research output: Contribution to journalArticleScientificpeer-review

  8. Published

    An approach to enhanced fidelity of airborne radar site-specific simulation

    Väisänen, V., Jylhä, J., Venäläinen, I., Vihonen, J., Perälä, H. & Visa, A., 2008, Proceedigs of SPIE Remote Sensing 2008, Remote Sensing for Environmental Monitoring, GIS Applications, and Geology VIII, Cardiff, Wales, UK, 15-18 September 2008. Michel, U. (ed.). p. 12 p

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

  9. Published

    An artificial neural network based model for predicting H2 production rates in a sucrose-based bioreactor system

    Nikhil, N., Özkaya, B., Visa, A., Lin, C-Y., Puhakka, J. A. & Yli-Harja, O., 2008, In : International Journal of Mathematical, Physical and Engineering Sciences. 2, 2, p. 80-85

    Research output: Contribution to journalArticleScientificpeer-review

  10. Published

    An efficient approach for site-specific scenery prediction in surveillance imaging near Earth's surface

    Jylhä, J., Marjanen, K., Rantala, M., Metsäpuro, P. & Visa, A., 2006, In: Bruzzone, L. (ed. ). Image and Signal Processing for Remote Sensind XII, Stockholm, Sweden, 11-14 September 2006. Proceedings of SPIE. p. 11 p

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

  11. Published

    A new method for outlier removal in time delay based direction of arrival estimates

    Pirinen, T. W., Pertilä, P. E. & Visa, A. J., 2003, Proceedings of SPIE, Unattended Ground Sensor Technologies and Applications V, Orlando, Florida, USA, 21-25 April 2003. Carapezza, E. M. (ed.). p. 18-29

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

  12. Published

    A New methodology for Knowledge Retrieval from Text Documents

    Visa, A., Toivonen, J., Back, B. & Vanharanta, H., 2000, Proceedings of TOOLMET2000 Symposium-Tool Enviroments and Development Methods for Intelligent Systems 13 - 14, April, 2000 University of Oulu, Linnainmaa Oulu, Finland. Yliniemi, L. & Juuso, E. (eds.). p. 147-151

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

  13. Published

    A novel algorithm for identifying patterns from multisensor time series

    Ruotsalainen, M., Jylhä, J., Vihonen, J. & Visa, A., 2009, Proceedings of the 2009 WRI World Congress on Computer Science and Information Engineering, CSIE 2009, Los Angeles, California, USA, 31 March - 2 April 2009. IEEE, p. 100-105 6 p.

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

  14. Published

    A Novel Method for Quick On-Line Segmentation Based on Sparsity

    Vihonen, J., Rauhamaa, J., Huotilainen, T. & Visa, A., 2012, 20th European Signal Processing Conference, EUSIPCO 2012, August 27-31, Bucharest, Romania. Piscataway, NJ: Institute of Electrical and Electronics Engineers IEEE, p. 844-848 (European Signal Processing Conference (EUSIPCO)).

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

  15. Published

    Application of the clustering hybrid regression approach to model xylose-based fermentative hydrogen production

    Nikhil, N., Visa, A., Yli-Harja, O., Lin, C-Y. & Puhakka, J. A., 2008, In : Energy & Fuels. 22, 1, p. 128-133

    Research output: Contribution to journalArticleScientificpeer-review

  16. Published

    A prototype-matching system for scientific abstract collection semantic clustering

    Kloptchenko, A., Back, B., Visa, A., Toivonen, J. & Vanharanta, H., 2002, TUCS. 19 p. (TUCS Technical Report, Turku Center for Computer Science; no. 465)

    Research output: Book/ReportCommissioned reportProfessional

  17. Published

    A RCS model of complex targets for radar performance prediction

    Väilä, M., Jylhä, J., Väisänen, V., Perälä, H., Visa, A., Harju, M. & Virtanen, K., 8 May 2017, 2017 IEEE Radar Conference (RadarConf). Seattle, WA, USA: IEEE, p. 430-435 6 p.

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

  18. Published

    A spatiotemporal approach for passive sound source localization - real-world experiments

    Parviainen, M., Pertilä, P., Korhonen, T. & Visa, A., 2005, Proceedings of International Workshop on Nonlinear Signal and Image Processing, NSIP 2005, Sapporo, Japan, 18-20 May 2005. p. 468-473

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

  19. Published

    A spatiotemporal approach to passive sound source localization

    Pertilä, P., Parviainen, M., Korhonen, T. & Visa, A., 2004, Proceedings of International Symposium on Communications and Information Technologies 2004, ISCIT 2004, Sapporo, Japan, 26-29 October 2004. p. 1150-1154

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

  20. Published

    Assessing the feasibility of self-organizing maps for data mining financial information

    Eklund, T., Back, B., Vanharanta, H. & Visa, A., 2002, Proceedings of the Xth European conference on information systems ECIS 2002, Theme: Information systems and the future of the digital economy, Gdansk, Poland, 6th-8th Juna 2002. Wrycza, S. (ed.). p. 528-537

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

  21. Published

    Automatic detection of water inside concrete slabs using ground penetrating radar

    Khan, M. A., Vehmas, R. & Visa, A., 1 Apr 2019, 2019 IEEE Radar Conference, RadarConf 2019. IEEE

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

  22. Published

    Benchmarking global pulp and paper companies using self-organizing maps

    Eklund, T., Back, B., Vanharanta, H. & Visa, A., 2001, In : Paperi ja puu. 83, 4, p. 304-316

    Research output: Contribution to journalArticleScientificpeer-review

  23. Published

    Benchmarking international pulp and paper companies using self-organizing maps

    Eklund, T., Back, B., Vanharanta, H. & Visa, A., 2001, Turku: TURKU CENTRE FOR COMPUTER SCIENCE. 26 p. (Turku Centre for Computer Science, TUCS Technical Report; no. 396)

    Research output: Book/ReportCommissioned reportProfessional

  24. Published

    Big Data in 5G Distributed Applications

    Nejkovic, V., Visa, A., Tosic, M., Petrovic, N., Valkama, M., Koivisto, M., Talvitie, J., Rancic, S., Grzonka, D., Tchorzewski, J., Kuonen, P. & Gortazar, F., 26 Mar 2019, High-Performance Modelling and Simulation for Big Data Applications: Selected Results of the COST Action IC1406 cHiPSet. Kolodziej, J. & González-Vélez, H. (eds.). Cham: Springer International Publishing, p. 138-162 25 p. (Lecture Notes in Computer Science; vol. 11400).

    Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

  25. Published

    Binary co-occurrence matrix in image database indexing

    Kunttu, I., Lepistö, L., Rauhamaa, J. & Visa, A., 2003, In : Lecture Notes in Computer Science. 2749, p. 1090-1097

    Research output: Contribution to journalArticleScientificpeer-review

  26. Published

    Binary histogram in image classification for retrieval purposes

    Kunttu, I., Lepistö, L., Rauhamaa, J. & Visa, A., 2003, Journal of WSCG, WSCG 2003, the 11th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2003, 3-7 February 2003, University of West Bohemia, Plzen, Czech Republic. Skala, V. (ed.). p. 269-273

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

  27. Published

    Case based reasoning approach to automatic comparison of models

    Ala-Kleemola, T., Merta, M., Visa, A. & Johansson, P., 2005, Proceedings of the 8th International Conference on Information Fusion 2005, FUSION, Philadelphia PA, USA, 25-29 July 2005. p. 1025-1029

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

  28. Published

    Circular deformation estimation for a flexible link

    Vihonen, J., Mäkinen, P., Mattila, J. & Visa, A., 25 Dec 2017, 2017 IEEE SENSORS. IEEE

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

  29. Published

    Classification method for colored natural textures using Gabor filtering

    Lepistö, L., Kunttu, I., Autio, J. & Visa, A., 2003, Proceedings of the 12th International Conference on Image Analysis and Processing, ICIAP 2003, Mantova, Italy, 17-19 September 2003. Werner, B. (ed.). IEEE Computer Society, p. 397-401

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

  30. Published

    Classification method for defect images based on association and clustering

    Kunttu, I., Lepistö, L., Rauhamaa, J. & Visa, A., 2003, Proceedings of SPIE Data Mining and Knowledge Discovery: Theory, Tools, and Technology V, Orlando, Florida, USA, 21-22 April 2003. Dasarathy, B. V. (ed.). SPIE, p. 19-27

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

  31. Published

    Classification of items in walk-through metal detector using time series of eigenvalues of the polarizability tensor

    Kauppila, J., Ala-Kleemola, T., Vihonen, J., Jylhä, J., Ruotsalainen, M., Järvi, A. & Visa, A., 2009, Proceedings of SPIE Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XIV, Orlando, Florida, USA, 13-17 April 2009. Harmon, R. S. (ed.). p. 10 p

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

  32. Published

    Classification of metallic targets using a single frequency component of the magnetic polarisability tensor

    Makkonen, J., Marsh, L. A., Vihonen, J., Visa, A., Järvi, A. & Peyton, A. J., 2013, Sensors & their Applications XVII, 16-18 September 2013, Rixos Libertas, Dubrovnik, Croatia. Institute of Physics Publishing, p. 1-6 6 p. 012038. (Journal of Physics: Conference Series; vol. 450).

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

  33. Classification of natural images using supervised and unsupervised classifier combinations

    Lepistö, L., Kunttu, I., Autio, J. & Visa, A., 2005, 13th International Conference on Image Analysis and Processing, Cagliari, Italy, Sep 06-08, 2005. Book Series: Lecture Notes in Computer Science. Roli, F. & Vitulano, S. (eds.). p. 770-777

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

  34. Published

    Classification of natural rock images using classifier combinations

    Lepistö, L., Kunttu, I. & Visa, A., 2006, In : Optical Engineering. 45, 9, p. pp. 097201-1-7 7 p.

    Research output: Contribution to journalArticleScientificpeer-review

  35. Published

    Classification of non-homogenous images using classification probability vector

    Lepistö, L., Kunttu, I., Autio, J., Rauhamaa, J. & Visa, A., 2005, Proceedings of International Conference on Image Processing, ICIP 2005, Genova, Italy, 11-14 September 2005. p. 1173-1176

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

  36. Published

    Classification of non-homogenous texture images by combining classifiers

    Lepistö, L., Kunttu, I., Autio, J. & Visa, A., 2003, Proceedings of IEEE International Conference on Image Processing, ICIP 2003, Barcelona, Spain, 14-17 September 2003. p. 981-984

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

  37. Published

    Classification of radar data by detecting and identifying spatial and temporal anomalies

    Väilä, M., Venäläinen, I., Jylhä, J., Ruotsalainen, M., Perälä, H. & Visa, A., 2010, Automatic Target Recognition XX; Acquisition, Tracking, Pointing, and Laser Systems Technologies XXIV; and Optical Pattern Recognition XXI; Defence, Security, and Sensing 2010: Sensor Data and Signal, Image and Neural Processing, Orlando, FL, USA, April 5-9, 2010. Proceedings of SPIE. Bellingham, WA: SPIE, 9 p.

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

  38. Published

    Clustering hybrid regression: a novel computational approach to study and model biohydrogen production through dark fermentation

    Nikhil, N., Koskinen, P. E. P., Visa, A., Kaksonen, A. H., Puhakka, J. A. & Yli-Harja, O., 2008, In : Bioprocess and Biosystems Engineering. 31, 6, p. 631-640

    Research output: Contribution to journalArticleScientificpeer-review

  39. Published

    Color-based classification of natural rock images using classifier combinations

    Lepistö, L., Kunttu, I. & Visa, A., 2005, In : Lecture Notes in Computer Science. 3540, p. 901-909

    Research output: Contribution to journalArticleScientificpeer-review

  40. Color Fourier descriptor for defect image retrieval

    Kunttu, I., Lepistö, L., Rauhamaa, J. & Visa, A., 2005, 13th International Conference on Image Analysis and Processing, Cagliari, Italy, Sep 06-08, 2005. Book Series: Lecture Notes in Computer Science. Roli, F. & Vitulano, S. (eds.). p. 415-422

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

  41. Published

    Combining classifiers in rock image classification-supervised and unsupervised approach

    Lepistö, L., Kunttu, I., Autio, J. & Visa, A., 2004, Proceedings of Advanced Concepts for Intelligent Vision systems, Acivs 2004, Brussels, Belgium, August 31 - September 3, 2004. p. 17-22

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

  42. Published

    Combining data and text mining techniques for analysing financial reports

    Kloptchenko, A., Eklund, T., Karlsson, J., Back, B., Vanharanta, H. & Visa, A., 2004, In : Intelligent systems in accounting, finance and management. 12, 1, p. 29-41

    Research output: Contribution to journalArticleScientificpeer-review

  43. Published

    Combining data and text mining techniques for analyzing financial reports

    Kloptchenko, A., Eklund, T., Back, B., Karlsson, J., Vanharanta, H. & Visa, A., 2002, Proceedings of the Eight Americas Conference on Information Systems, AMCIS 2002, Dallas, Texas, USA, 9-11 August 2002. Ramsower, R., Windsor, J. & DeGross, J. I. (eds.). p. 20-28

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

  44. Published

    Comparing numerical data and text information from annual reports using self-organizings maps

    Back, B., Toivonen, J., Vanharanta, H. & Visa, A., 2001, In : International Journal of Accounting Information Systems. 2, p. 249-269

    Research output: Contribution to journalArticleScientificpeer-review

  45. Published

    Comparison between macroeconomic financial and industry specific cycles with self-organizing maps

    Länsiluoto, A., Back, B., Vanharanta, H. & Visa, A., 2003, Workshop on self-organizing maps (WSOM´03), Intelligent systems and innovational computing, Proceedings, Kyushu institute of technology, Kitayushu, Japan, 11-14 September, 2003. p. 317-323

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

  46. Published

    Comparison of some content-based image retrieval systems with rock texture images

    Lepistö, L., Kunttu, I., Autio, J. & Visa, A., 2002, Proceedings of STeP 2002 - Intelligence, The Art of Natural and Artificial, The 10th Finnish Artificial Intelligence Conference, VTT Electronics, Linnanmaa, Oulu, 15-17 December 2002. Ala-Siuru, P. & Kaski, S. (eds.). Oulu: FAIS, p. 156-163

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

  47. Published

    Comparison of three post-processing methods for acoustic localization

    Pertilä, P. E., Pirinen, T. W., Visa, A. J. & Korhonen, T. S., 2003, Proceedings of SPIE, Unattended Ground Sensor Technologies and Applications V, Orlando, Florida, USA, 21-25 April 2003. Carapezza, E. M. (ed.). p. 9-17

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

  48. Published

    Comprehensive survey of similarity measures for ranked based location fingerprinting algorithm

    Minaev, G., Visa, A. & Piche, R., 2017, Indoor Positioning and Indoor Navigation (IPIN), 2017 International Conference on. IEEE, 4 p.

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

  49. Published

    Contents matching defined by prototypes: Methodology verification with books of the bible

    Visa, A., Toivonen, J., Vanharanta, H. & Back, B., 2002, In : Journal of Management Information Systems. 18, 4, p. 87-100

    Research output: Contribution to journalArticleScientificpeer-review

  50. Published

    Context awareness in human-computer interaction

    Makkonen, J., Avdouevski, I., Kerminen, R. & Visa, A., 2009, Human-Computer Interaction. Maurtua, I. (ed.). Rijeka, Croatia: In-Tech, p. 1-26 26 p.

    Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

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