Pasi Fränti

Publications


Journal papers:

  1. P. Fränti and S. Sieranoja, "How much k-means can be improved by using better initialization and repeats?", Pattern Recognition, 93, 95-112, 2019. (pdf) (PPT) (youtube)

  2. N. Gali , R. Mariescu-Istodor, D. Hostettler, P. Fränti, "Framework for syntactic string similarity measures" Expert Systems with Applications, 129 (1), 169-185, September 2019. (pdf) (youtube)

  3. G.I. Choudhary, W. Aziz, I.R. Khan, S. Rahardja and P. Fränti, "Analyzing the dynamics of inter beat interval time series using grouped horizontal visibility graph", IEEE Access, 7 (1), 9926-9934, December 2019. (pdf)

  4. L. Sengupta, R. Mariescu-Istodor and P. Fränti, "Planning your route: where to start?", Computational Brain & Behavior, 1 (3-4), 252-265, December 2018. (pdf) (PPT) (youtube)

  5. M. Rezaei and P. Fränti "Real-time clustering of large geo-referenced data for visualizing on map", Advances in Electrical and Computer Engineering, 18 (4), 63-74, 2018. (pdf) (API)

  6. P. Fränti and S. Sieranoja, "K-means properties on six clustering benchmark datasets", Applied Intelligence, 48 (12), 4743-4759, December 2018. (pdf) (PPT) (data) (youtube)

  7. S. Sieranoja and P. Fränti, "Constructing a high-dimensional kNN-graph using a Z-order curve", ACM Journal of Experimental Algorithmics, 23 (1), 1.9:1-21, October 2018. (pdf) (code)

  8. R. Mariescu-Istodor and P. Fränti, "CellNet: Inferring road networks from GPS trajectories", ACM Trans. on Spatial Algorithms and Systems, 4 (3), 8:1-22, September 2018. (pdf) (PPT) (web)

  9. P. Fränti, "Efficiency of random swap clustering", Journal of Big Data, 5:13, 1-29, 2018. (pdf) (PPT) (code) (youtube)

  10. A. Tabarcea, N. Gali and P. Fränti, "Framework for location-aware search engine", Journal of Location Based Services, 11 (1), 50-74, November 2017. (pdf) (youtube)

  11. R. Mariescu-Istodor and P. Fränti, "Grid-based method for GPS route analysis for retrieval", ACM Trans. on Spatial Algorithms and Systems, 3 (3), 8:1-28, September, 2017. (pdf) (data) (API)

  12. P. Fränti, R. Mariescu-Istodor and L. Sengupta, "O-Mopsi: mobile orienteering game for sightseeing, exercising and education", ACM Trans. on Multimedia, Computing, Communications, and Applications, 13 (4), 56:1-25, August 2017. (pdf) (web)

  13. N. Gali, R. Mariescu-Istodor and P. Fränti, "Using linguistic features to automatically extract web page title", Expert Systems with Applications, 79, 296-312, 2017. (pdf)

  14. M. Rezaei and P. Fränti, "Set matching measures for external cluster validity", IEEE Trans. on Knowledge and Data Engineering, 28 (8), 2173-2186, August 2016. (pdf) (appendix)

  15. C. Zhong, M.I. Malinen, D. Miao and P. Fränti, "A fast minimum spanning tree algorithm based on K-means", Information Sciences, 295, 1-17, February 2015. (pdf)

  16. Q. Zhao, Y. Shi, Q. Liu and P. Fränti, "A grid-growing clustering algorithm for geo-spatial data", Pattern Recognition Letters, 53 (1),77-84, February 2015. (pdf)

  17. M.I. Malinen, R. Mariescu-Istodor and P. Fränti, "K-means*: clustering by gradual data transformation", Pattern Recognition, 47 (10), 3376-3386, October 2014. (pdf)

  18. P. Fränti, M. Rezaei and Q. Zhao, "Centroid index: cluster level similarity measure", Pattern Recognition, 47 (9), 3034-3045, September 2014, 2014. (pdf) (code) (youtube)

  19. Q. Zhao and P. Fränti, "WB-index: a sum-of-squares based index for cluster validity", Data & Knowledge Engineering, 92, 77-89, July 2014. (pdf)

  20. Q. Zhao and P. Fränti, "Centroid ratio for pairwise random swap clustering algorithm", IEEE Trans. on Knowledge and Data Engineering, 26 (5), 1090-1101, May 2014. (pdf)

  21. Q. Zhao, V. Hautamäki, I. Kärkkäinen and P. Fränti, "Random swap EM algorithm for Gaussian mixture models", Pattern Recognition Letters, 33, 2120-2126, 2012. (pdf)

  22. M.I. Malinen and P. Fränti, "Clustering by analytic functions", Information Sciences, 217, 31-38, December 2012. (pdf)

  23. P. Mowlaee, R. Saeidi, M.G. Christensen, Z.-H. Tan, T. Kinnunen, P. Fränti, S.H. Jensen, "A joint approach for single-channel speaker identification and speech separation", IEEE Trans. on Audio, Speech and Language Processing, 20 (9), 2586-2601, November 2012. (pdf)

  24. M. Chen, M. Xu and P. Fränti, "A fast O(N) multi-resolution polygonal approximation algorithm for GPS trajectory simplification", IEEE Trans. on Image Processing, 21 (5), 2770-2785, May 2012. (pdf) (API)

  25. M. Chen, M. Xu, P. Fränti, "Adaptive context-tree-based statistical filtering for raster map image denoising", IEEE Trans. on Multimedia, 13 (6), 1195-1207, December 2011. (pdf)

  26. T. Kinnunen, I. Sidoroff, M. Tuononen and P. Fränti, "Comparison of clustering methods: a case study of text-independent speaker modeling", Pattern Recognition Letters, 32 (13), 1604-1617. October 2011. (pdf)

  27. C. Zhong, D. Miao and P. Fränti, "Minimum spanning tree based split-and-merge: a hierarchical clustering method", Information Sciences, 181, 3397-3410, 2011. (pdf)

  28. Z.J. Zhu, Z.G. Li, S. Rahardja, P. Fränti, "Recover real world scene: high quality image inpainting using multi-exposed references", Electronics Letters, 45 (25), 1310-1312, December 2009. (pdf)

  29. T. Kinnunen, J. Saastamoinen, V. Hautamäki, M. Vinni and P. Fränti, "Comparative evaluation of maximum a posteriori vector quantization and Gaussian mixture models in speaker verification", Pattern Recognition Letters, 30 (4), 341-347, March 2009. (pdf)

  30. V. Hautamäki, T. Kinnunen and P. Fränti, "Text-independent speaker recognition using graph matching", Pattern Recognition Letters, 29 (9), 1427-1432, 2008. (pdf)

  31. H. Huang, P. Fränti, D. Huang, S. Rahardja, "Cascaded RLS-LMS prediction in MPEG-4 lossless audio coding", IEEE Trans. on Audio, Speech and Language Processing, 16 (3), 554-562, March 2008. (pdf)

  32. V. Hautamäki, T. Kinnunen, I. Kärkkäinen, J. Saastamoinen, M. Tuononen and P. Fränti, "Maximum a posteriori adaptation of the centroid model for speaker verification", IEEE Signal Processing Letters, 15, 162-165, 2008. (pdf)

  33. A. Kolesnikov and P. Fränti, "Polygonal approximation of closed discrete curves", Pattern Recognition, 40 (4), 1282-1293, April 2007. (pdf)

  34. A. Akimov, A. Kolesnikov and P. Fränti, "Lossless compression of map contours by context tree modeling of chain codes", Pattern Recognition, 40 (3), 944-952, March 2007. (pdf)

  35. I. Kärkkäinen and P. Fränti, "Gradual model generator for single-pass clustering", Pattern Recognition, 40 (3), 784-795, March 2007. (pdf)

  36. A. Akimov, A. Kolesnikov and P. Fränti, "Lossless compression of color map images by context tree modeling", IEEE Trans. on Image Processing, 16 (1), 114-120, January 2007. (pdf)

  37. P. Fränti, O. Virmajoki and V. Hautamäki, "Fast agglomerative clustering using a k-nearest neighbor graph", IEEE Trans. on Pattern Analysis and Machine Intelligence, 28 (11), 1875-1881, November 2006. (pdf)

  38. A. Podlasov, P. Fränti, "Lossless image compression via bit-plane separation and multi-layer context tree modeling", Journal of Electronic Imaging, 14 (5), 043009, October-December 2006. (pdf)

  39. P. Fränti and O. Virmajoki, "Iterative shrinking method for clustering problems", Pattern Recognition, 39 (5), 761-765, May 2006. (pdf)

  40. A. Podlasov, E. Ageenko and P. Fränti, "Morphological reconstruction of semantic layers in map images", Journal of Electronic Imaging, 15 (1), 013016, January-March 2006. (pdf)

  41. M. Xu, X. Wu and P. Fränti, "Context quantization by kernel fisher discriminant", IEEE Trans. on Image Processing, 15 (1), 169-177, January, 2006. (pdf)

  42. T. Kinnunen, E. Karpov and P. Fränti, "Real-time speaker identification and verification", IEEE Trans. on Audio, Speech and Language Processing, 14 (1), 277-288, January 2006. (pdf)

  43. J. Saastamoinen, E. Karpov, V. Hautamäki and P. Fränti, "Accuracy of MFCC based speaker recognition in series 60 device", Journal of Applied Signal Processing, (17), 2816-2827, September 2005. (pdf)

  44. A. Kolesnikov and P. Fränti, "Data reduction of large vector graphics", Pattern Recognition, 38 (3), 381-394, March, 2005. (pdf)

  45. P. Kopylov and P. Fränti, "Compression of map images by multi-layer context tree modeling", IEEE Trans. on Image Processing, 14 (1), 1-11, January 2005. (pdf)

  46. P. Fränti, E. Ageenko, P. Kopylov, S. Gröhn and F. Berger, "Compression of map images for real-time applications", Image and Vision Computing, 22 (13), 1105-1115, November 2004. (pdf)

  47. O. Virmajoki and P. Fränti, "Fast pairwise nearest neighbor based algorithm for multilevel thresholding", Journal of Electronic Imaging, 12 (4), 648-659, October 2003. (pdf)

  48. A. Kolesnikov and P. Fränti, "Reduced-search dynamic programming for approximation of polygonal curves", Pattern Recognition Letters, 24 (14), 2243-2254, October 2003. (pdf)

  49. J. Kivijärvi, P. Fränti and O. Nevalainen, "Self-adaptive genetic algorithm for clustering", Journal of Heuristics, 9 (2), 113-129, March 2003. (pdf) (code)

  50. P. Fränti, M. Xu and I. Kärkkäinen, "Classification of binary vectors by using DeltaSC-distance to minimize stochastic complexity", Pattern Recognition Letters, 24 (1-3), 65-73, January 2003. (pdf)

  51. E.I. Ageenko, M. Forsell and P. Fränti, "Context-based compression of binary images in parallel", Software Practice and Experience, 32 (13), 1223-1237, November 2002. (pdf)

  52. P. Fränti, E.I. Ageenko, S. Kukkonen and H. Kälviäinen, "Using Hough transform for context-based image compression in hybrid raster/vector applications", Journal of Electronic Imaging, 11 (2), 236-245, April 2002. (pdf)

  53. O. Virmajoki, P. Fränti and T. Kaukoranta, "Practical methods for speeding-up the PNN method", Optical Engineering, 40 (11), 2495-2504, November 2001. (pdf)

  54. P. Fränti and J. Kivijärvi, "Randomized local search algorithm for the clustering problem", Pattern Analysis and Applications, 3 (4), 358-369, 2000. (pdf)

  55. P. Fränti, A. Mednonogov, V. Kyrki and H. Kälviäinen, "Content-based matching of line-drawing images using the Hough transform", Int. Journal on Document Analysis and Recognition, 3 (3), 117-124, 2000. (pdf)

  56. T. Kaukoranta, P. Fränti and O. Nevalainen, "A fast exact GLA based on code vector activity detection", IEEE Trans. on Image Processing, 9 (8), 1337-1342, August 2000. (pdf)

  57. P. Fränti, H.G. Gyllenberg, M. Gyllenberg, J. Kivijärvi, T. Koski, T. Lund and O. Nevalainen, "Minimizing stochastic complexity using local search and GLA with applications to classification of bacteria", Biosystems, 57 (1), 37-48, June 2000. (pdf)

  58. K. Lemström and P. Fränti, "N-candidate methods for location invariant dithering of color images", Image and Vision Computing, 18 (6-7), 493-500, 2000. (pdf)

  59. E.I. Ageenko and P. Fränti, "Context-based filtering of document images", Pattern Recognition Letters, 21 (6-7), 483-491, 2000. (pdf)

  60. P. Fränti, T. Kaukoranta, D.-F. Shen and K.-S. Chang, "Fast and memory efficient implementation of the exact PNN", IEEE Trans. on Image Processing, 9 (5), 773-777, May 2000. (pdf)

  61. E.I. Ageenko and P. Fränti, "Lossless compression of large binary images in digital spatial libraries", Computers & Graphics, 24 (1), 91-98, February 2000. (pdf)

  62. P. Fränti, "Genetic algorithm with deterministic crossover for vector quantization", Pattern Recognition Letters, 21 (1), 61-68, 2000. (pdf)

  63. T. Kaukoranta, P. Fränti and O. Nevalainen, "Vector quantization by lazy pairwise nearest neighbor method", Optical Engineering, 38 (11), 1862-1868, November 1999. (pdf)

  64. P. Fränti, E.I. Ageenko and A.N. Kolesnikov, "Vectorising and feature-based filtering for line-drawing image compression", Pattern Analysis and Applications, 2 (4), 285-291, 1999. (pdf)

  65. E.I. Ageenko and P. Fränti, "Forward-adaptive method for compressing large binary images", Software Practice & Experience, 29 (11), 943-952, 1999. (pdf)

  66. P. Fränti and T. Kaukoranta, "Binary vector quantizer design using soft centroids", Signal Processing: Image Communication, 14 (9), 677-681, 1999. (pdf)

  67. P. Fränti and T. Hatakka, "Context model automata for text compression", The Computer Journal, 41 (7), 474-485, 1998. (pdf)

  68. T. Kaukoranta, P. Fränti and O. Nevalainen "Iterative split-and-merge algorithm for VQ codebook generation", Optical Engineering, 37 (10), 2726-2732, October 1998. (pdf)

  69. P. Fränti, J. Kivijärvi and O. Nevalainen: "Tabu search algorithm for codebook generation in VQ", Pattern Recognition, 31 (8), 1139-1148, August 1998. (pdf)

  70. P. Fränti: "Blockwise Distortion Measure for Statistical and Structural Errors in Digital Images", Signal Processing: Image Communication, 13 (2), 89-98, August 1998. (pdf)

  71. E.I. Ageenko and P. Fränti: "Enhanced JBIG-based Compression Method for Satisfying Objectives of Engineering Document Management System", Optical Engineering, 37 (5), 1530-1538, May 1998. (pdf)

  72. P. Fränti, J. Kivijärvi, T. Kaukoranta and O. Nevalainen: "Genetic algorithms for large scale clustering problem", The Computer Journal, 40 (9), 547-554, 1997. (pdf)

  73. P. Fränti, T. Kaukoranta and O. Nevalainen: "On the Splitting Method for VQ Codebook Generation", Optical Engineering, 36 (11), 3043-3051, November 1997. (pdf)

  74. P. Fränti, T. Kaukoranta and O. Nevalainen: "On the Design of a Hierarchical BTC-VQ Compression System", Signal Processing: Image Communication, 8 (6), 551-562, 1996. (pdf)

  75. T. Kaukoranta, P. Fränti and O. Nevalainen: "Reallocation of GLA codevectors for evading local minima", Electronics Letters, 32 (17), 1563-1564, 1996. (pdf)

  76. P. Fränti and O. Nevalainen: "Compression of Binary Images by Composite Methods Based on the Block Coding", Journal of Visual Communication and Image Representation, 6 (4), 366-377, 1995. (pdf)

  77. P. Fränti and O. Nevalainen: "Block Truncation Coding with Entropy Coding", IEEE Trans. on Communications, 43 (4), 1677-1685, 1995. (pdf)

  78. P. Fränti, O. Nevalainen and T. Kaukoranta: "Compression of Digital Images by Block Truncation Coding: A Survey", The Computer Journal, 37 (4), 308-332, 1994. (pdf)

  79. J. Kari and P. Fränti: "Arithmetic Coding of Weighted Finite Automata", RAIRO - Theoretical Informatics and Applications, 28 (3-4), 343-360, 1994. (pdf)

  80. P. Fränti: "A Fast and Efficient Compression Method for Binary Images", Signal Processing: Image Communication, 6 (1), 69-76, 1994. (pdf)

  81. P. Fränti and O. Nevalainen: "A Two-Stage Modelling Method for Compressing Binary Images by Arithmetic Coding", The Computer Journal, 36 (7), 615-622, 1993. (pdf)

Refereed conference papers:

  1. J.W. Yang. S. Rahardja and P. Fränti, "Mean-shift outlier detection", Int. Conf. Fuzzy Systems and Data Mining (FSDM), Bangkok, Thailand, November 2018. In Frontiers in Artificial Intelligence and Applications (FAIA), Vol. 309, 208-215, November 2018. (pdf) (pdf) (presentation) (code) (award) (youtube)

  2. T.C.T. Ho and P. Fränti, "Multi-agent approach traffic forecast for planning urban road infrastructure", IEEE TENCON, Jeju Island, Korea, 1801-1806, October 2018. (pdf)

  3. T.C.T. Ho and P. Fränti, "Real-time electric vehicle load forecast to meet timely energy dispatch", IEEE Int. Conf. on Service Operations and Logistics, and Informatics (SOLI), Singapore, 148-153, August 2018. (pdf)

  4. P. Fränti and S. Sieranoja, "Dimensionally distributed density estimation", Int. Conf. Artificial Intelligence and Soft Computing (ICAISC), Zakopane, Poland, 343-353, June 2018. (pdf) (presentation) (youtube)

  5. P. Fränti, R. Mariescu-Istodor and K. Waga, "Similarity of mobile users based on sparse location history", Int. Conf. Artificial Intelligence and Soft Computing (ICAISC), Zakopane, Poland, 593-603, June 2018. (pdf)

  6. P. Fränti and J.W. Yang, "Medoid-shift noise removal to improve clustering", Int. Conf. Artificial Intelligence and Soft Computing (ICAISC), Zakopane, Poland, 604-614, June 2018. (pdf) (youtube)

  7. S. Sieranoja and P. Fränti, "Random projection for k-means clustering", Int. Conf. Artificial Intelligence and Soft Computing (ICAISC), Zakopane, Poland, 680-689, June 2018. (pdf)

  8. S. Sieranoja and P. Fränti, "Fast random pair divisive construction of kNN graph using generic distance measures", Int. Conf. on Big Data & Computing, Shenzhen, China, 95-98, April 2018. (pdf) (award)

  9. R. Mariescu-Istodor and P. Fränti, "Detecting user actions in location-based systems", Int. Conf. on Location Based Services (LBS), Adjunt proceedings, Zürich, Switzerland, 1-6, January 2018. (pdf)

  10. R. Mariescu-Istodor, P. Heng and P. Fränti, "Roundness measure for GPS routes", Int. Conf. on Location Based Services (LBS), Adjunt proceedings, Zürich, Switzerland, 81-86, January 2018. (pdf)

  11. N. Gali, R. Mariescu-Istodor and P. Fränti, "Functional Classification of Websites", Int. Symposium on Information and Communication Technology (SoICT 2017), Nha Trang, Vietnam, 34-41, December 2017. (pdf)

  12. N. Gali, R. Mariescu-Istodor and P. Fränti, "Similarity measures for title matching", IAPR Int. Conf. on Pattern Recognition, (ICPR'16), Cancun, Mexico, 1549-1554, December 2016. (pdf)

  13. P. Fränti R. Mariescu-Istodor and C. Zhong, "XNN graph", Joint Int. Workshop on Structural, Syntactic, and Statistical Pattern Recognition (S+SSPR 2016), Merida, Mexico, LNCS 10029, 207-217, November 2016. (pdf) (presentation)

  14. P. Fränti and M. Rezaei, "Generalized centroid index to different clustering models", Joint Int. Workshop on Structural, Syntactic, and Statistical Pattern Recognition (S+SSPR 2016), Merida, Mexico, LNCS 10029, 285-296, November 2016. (pdf) (presentation)

  15. R. Mariescu-Istodor and P. Fränti, "Gesture input for GPS route search", Joint Int. Workshop on Structural, Syntactic, and Statistical Pattern Recognition (S+SSPR 2016), Merida, Mexico, LNCS 10029, 439-449, November 2016. (pdf) (presentation)

  16. S. Sieranoja, T. Kinnunen and P. Fränti, "GPS trajectory biometrics: from where you were to how you move", Joint Int. Workshop on Structural, Syntactic, and Statistical Pattern Recognition (S+SSPR 2016), Merida, Mexico, LNCS 10029, 450-460, November 2016. (pdf) (presentation)

  17. N. Gali and P. Fränti, "Content-based title extraction from web page", Int. Conf. on Web Information Systems & Technologies (WEBIST'16), Vol.2, 204-210, Rome, Italy, April 2016. (pdf)

  18. M. Rezaei, N. Gali and P. Fränti "ClRank: a method for keyword extraction from web pages using clustering and distribution of nouns", IEEE/WIC/ACM Int. Joint Conf. in Web Intelligence and Intelligent Agent Technology (WI-AIT'15), 79-84, Singapore, 2015. (pdf)

  19. N. Gali, A. Tabarcea, and P. Fränti, "Extracting representative image from web page", Int. Conf. on Web Information Systems & Technologies (WEBIST'15), 411-419, Lisbon, Portugal, May 2015. (pdf)

  20. P. Fränti, K. Waga, and C. Khurana, "Can social network be used for location-aware recommendation?", Int. Conf. on Web Information Systems & Technologies (WEBIST'15), 558-565, Lisbon, Portugal, May 2015. (pdf)

  21. Z.J. Zhu, Z.G. Li, S.G. Wu and P. Fränti, "Noise reduced high dynamic range tone mapping using information content weights", IEEE Int. Conf. on Acoustics, Speech, and Signal Processing, (ICASSP'15), Brisbabe, Australia, 1255-1259, April 2015. (pdf)

  22. T.C.T. Ho, R. Yu, J.R. Lin and P. Fränti, "Modelling implications & impacts of going green with EV in Singapore with multi-agent systems", Annual Summit and Conference of Asian-Pacific Signal and Information Processing Association (APSIPA), Chiang Mai, Thailand, 1-6, December 2014. (pdf)

  23. M.I. Malinen and P. Fränti, "Balanced K-means for clustering", Joint Int. Workshop on Structural, Syntactic, and Statistical Pattern Recognition (S+SSPR 2014), LNCS 8621, 35-44, Joensuu, Finland, August 2014. (pdf) (code)

  24. V. Hautamäki, A. Pöllänen, T. Kinnunen, K.A. Lee, H. Li, and P. Fränti, "A comparison of categorical attribute data clustering", Joint Int. Workshop on Structural, Syntactic, and Statistical Pattern Recognition (S+SSPR 2014), LNCS 8621, 55-64, Joensuu, Finland, August 2014. (pdf)

  25. M. Rezaei and P. Fränti, "Matching similarity for keyword-based clustering", Joint Int. Workshop on Structural, Syntactic, and Statistical Pattern Recognition (S+SSPR 2014), LNCS 8621, 195-204, Joensuu, Finland, August 2014. (pdf)

  26. R. Mariescu-Istodor, A. Tabarcea, R. Saeidi and P. Fränti, "Low complexity spatial similarity of GPS trajectories", Int. Conf. on Web Information Systems & Technologies (WEBIST'14), Barcelona, Spain, April 2014. (pdf)

  27. C. Zhong, M.I. Malinen, D. Miao and P. Fränti, "A fast minimum spanning tree algorithm based on K means", Int. Conf. Computer Analysis of Images and Patterns (CAIP'13), York, UK, LNCS 8047, 262-269, August 2013. (pdf)

  28. K. Waga, A. Tabarcea, R. Mariescu-Istodor and P. Fränti, "Real time access to multiple GPS tracks", Int. Conf. on Web Information Systems & Technologies (WEBIST'13), Aachen, Germany, 293-299, May 2013. (pdf)

  29. A. Tabarcea, Z. Wan, K. Waga and P. Fränti, "O-Mopsi: mobile orienteering game using geotagged photos", Int. Conf. on Web Information Systems & Technologies (WEBIST'13), Aachen, Germany, 300-303, May 2013. (pdf)

  30. Q. Zhao, M. Rezaei, H. Chen and P. Fränti, "Keyword clustering for automatic categorization", IEEE Int. Conf. on Pattern Recognition (ICPR'12), Tsukuba City, Japan, 2845-2848, November 2012. (pdf)

  31. M. Chen, M. Xu and P. Fränti, "Compression of GPS trajectories using optimized approximation", IEEE Int. Conf. on Pattern Recognition (ICPR'12), Tsukuba City, Japan, 3180-3183, November 2012. (pdf)

  32. K. Waga, A. Tabarcea, R. Mariescu-Istodor and P. Fränti, "System for real time storage, retrieval and visualization of GPS tracks", Int. Conf. System Theory, Control and Computing (ICSTCC), Sinai, Romania, Vol. 2, October 2012.

  33. K. Waga, A. Tabarcea, M. Chen and P. Fränti, "Detecting movement type by route segmentation and classification", IEEE Int. Conf. on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom'12), Pittsburgh, USA, 2012. (pdf)

  34. K. Waga, A. Tabarcea and P. Fränti, "Recommendation of points of interest from user generated data collection", IEEE Int. Conf. on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom'12), Pittsburgh, USA, 2012. (pdf)

  35. M. Chen, M. Xu and P. Fränti, "Compression of GPS trajectories", IEEE Int. Conf. on Data Compression Conference (DCC'12), Snowbird, Utah, 62-71, April 2012 (pdf)

  36. Q. Zhao, M. Xu and P. Fränti, "Expanding external validity measures for determining the number of clusters", Int. Conf. on Intelligent Systems Design and Applications (ISDA'11), Cordoba, Spain, 931-936, November 2011. (pdf)

  37. K. Waga, A. Tabarcea and P. Fränti, "Context aware recommendation of location-based data", Int. Conf. on System Theory, Control and Computing (ICSTCC'2011), Sinaia, Romania, 658-663, October 2011. (pdf)

  38. E. Karpov, Z. Nasibov, T. Kinnunen and P. Fränti, "Combining voice activity detection algorithms by decision fusion", Speech and Computer (SPECOM'11), Kazan, Russia, 278-283, September 2011. (pdf)

  39. M. Chen, M. Xu and P. Fränti, "Adaptive filtering of raster map images using optimal context selection", IEEE Int. Conf. on Image Processing (ICIP'11), Brussells, Belgium, 77-80, September 2011. (pdf)

  40. Z.J. Zhu, Z.G. Li, S. Rahardja and P. Fränti, "De-ghosting of HDR images with double-credit intensity mapping", IEEE Int. Conf. on Image Processing (ICIP'11), Brussells, Belgium, 1361-1364, September 2011.

  41. P. Mowlaee, R. Saeidi, Z.-H. Tan, M.G. Christensen, T. Kinnunen, S.H. Jensen, P. Fränti, R. Martin, "Sinusoidal-based approach for single-channel speech separation and recognition challenge", Interspeech'11, Florence, Italy, 677-680, August 2011.

  42. Q. Zhao, V. Hautamäki and P. Fränti, "RSEM: an accelerated algorithm on repeated EM", Int. Conf. Image & Graphics (ICIG'11), Hefei, China, 135-140, August 2011.

  43. M.I. Malinen and P. Fränti, "K-means*: clustering by gradual data transformation", Int. Conf. Image & Graphics (ICIG'11), Hefei, China, 350-355, August 2011.

  44. P. Fränti, J. Chen, A. Tabarcea, "Four aspects of relevance in location-based media: content, time, location and network", Int. Conf. on Web Information Systems & Technologies (WEBIST'11), Noordwijkerhout, Netherlands, 413-417, May 2011. (pdf)

  45. R. Saeidi, P. Mowlaee, T. Kinnunen, Z.-H. Tan, M.G. Christensen, S.H. Jensen, P. Fränti, "Improving monaural speaker identification by double-talk detection", Interspeech'2010, Makuhari, Japan, 1069-1072, September 2010.

  46. M. Chen, M. Xu and P. Fränti, "Fast dynamic quantization algorithm for vector map compression", IEEE Int. Conf. on Image Processing (ICIP'10), Hong Kong, China, 4289-4292, September 2010. (pdf)

  47. Z.J. Zhu, Z.G. Li, S. Rahardja and P. Fränti, "Detecting near-identical HDR images without exposure information", IEEE Int. Conf. on Image Processing (ICIP'10), Hong Kong, China, 3337-3340, September 2010.

  48. M. Chen, M. Xu and P. Fränti, "Optimized entropy-constrained vector quantization of lossy vector map compression", IEEE Int. Conf. on Pattern Recognition (ICPR'10), Istanbul, Turkey, 722-725, August 2010. (pdf)

  49. R. Saeidi, P. Mowlaee T. Kinnunen, M.G. Christensen, Z.-H. Tan, S.H. Jensen and P. Fränti, "Signal-to-signal ratio independent speaker identification for co-channel speech signals", IEEE Int. Conf. on Pattern Recognition (ICPR'10), Istanbul, Turkey, 4565-4568, August 2010.

  50. M. Chen, M. Xu and P. Fränti, "Statistical filtering of raster map images", IEEE Int. Conf. on Multimedia & Expo (ICME'10), Singapore, 394-399, July 2010.

  51. P. Fränti, A. Tabarcea, J. Kuittinen, V. Hautamäki, "Location-based search engine for multimedia phones", IEEE Int. Conf. on Multimedia & Expo (ICME'10), Singapore, 558-563, July 2010. (pdf)

  52. J. Chen, Q. Zhao, and P. Fränti, "Smart swap for more efficient clustering", Int. Conf. Green Circuits and Systems (ICGCS'10), Shanghai, China, 446-450, June 2010. (pdf)

  53. W. Tian, M. Chen, M. Xu, P. Fränti and H. Wang, "Image denoising using context quantization and local linear regression", Int. Conf. Green Circuits and Systems (ICGCS'10), Shanghai, China, 451-456, June 2010. (pdf)

  54. M. Chen, P. Fränti and M. Xu, "Lossless bit-plane compression of images with context tree modeling", Int. Conf. Green Circuits and Systems (ICGCS'10), Shanghai, China, 605-610, June 2010. (pdf)

  55. Z.J. Zhu, S. Rahardja, S.Q. Wu, P. Fränti, "Real-time ghost removal for composing high dynamic range images", IEEE Conf. Industrial Electronics and Applications (ICIEA'10), Taichung, Taiwan, 1627-1631, June 2010.

  56. A. Tabarcea, V. Hautamäki, P. Fränti, "Ad-hoc georeferencing of web-pages using street-name prefix trees", Int. Conf. on Web Information Systems & Technologies (WEBIST'10), Valencia, Spain, vol.1, 237-244, April 2010. (pdf)

  57. P. Fränti, J. Kuittinen, A. Tabarcea, L. Sakala, "MOPSI location-based search engine: concept, architecture and prototype", ACM Symposium on Applied Computing (SAC'10), Sierre, Switzerland, 872-873, March, 2010. (pdf)

  58. R. Saeidi, T. Kinnunen, H.R. Sadegh Mohammadi, R.D. Rodman and P. Fränti, "Joint frame and Gaussian selection for text independent speaker verification", IEEE Int. Conf. on Acoustics, Speech, and Signal Processing, (ICASSP'10), Dallas, TX, USA, 4530-4534, March 2010.

  59. P. Mowlaee, R. Saeidi, Z.-H. Tan, M.G. Christensen, P. Fränti, and S.H. Jensen, "Joint single-channel speech separation and speaker identification", IEEE Int. Conf. on Acoustics, Speech, and Signal Processing, (ICASSP'10), Dallas, TX, USA, 4430-4433, March 2010.

  60. Q. Zhao, V. Hautamäki, I. Kärkkäinen and P. Fränti, "Random swap EM algorithm for finite mixtures models in image segmentation", IEEE Int. Conf. on Image Processing (ICIP'09), Cairo, Egypt, 2397-2400, November 2009.

  61. M. Chen, M. Xu and P. Fränti, "Multi-layer filtering approach for map images", IEEE Int. Conf. on Image Processing (ICIP'09), Cairo, Egypt, 3953-3956, November 2009.

  62. Q. Zhao, M. Xu and P. Fränti, "Sum-of-squares based clustering validity index and significance analysis", Int. Conf. on Adaptive and Natural Computing Algorithms (ICANNGA'09), Kuopio, Finland, LNCS 5495, 313-322, April 2009.

  63. P. Fränti and O. Virmajoki, "On the efficiency of swap-based clustering", Int. Conf. on Adaptive and Natural Computing Algorithms (ICANNGA'09), Kuopio, Finland, LNCS 5495, 303-312, April 2009.

  64. T. Kinnunen, J. Saastamoinen, V. Hautamäki, M. Vinni and P. Fränti, "Comparing maximum a posteriori vector quantization and Gaussian mixture models in speaker verification", IEEE Int. Conf. on Acoustics, Speech, and Signal Processing, (ICASSP'09), Taipei, Taiwan, 4229-4232, April 2009.

  65. P. Fränti, J. Saastamoinen, I. Kärkkäinen, T. Kinnunen, V. Hautamäki, and I. Sidoroff, "Developing speaker recognition system: from prototype to practical application", Int. Conf. Forensic Applications and Techniques in Telecommunications, Information and Multimedia (e-Forensics'09), Adelaide, Australia, LNICST vol. 8, 101-114, January 2009. (Revised Selected Papers) (pdf)

  66. P. Fränti, O. Virmajoki and V. Hautamäki, "Probabilistic clustering by random swap algorithm", IAPR Int. Conf. on Pattern Recognition (ICPR'08), Tampa, Florida, USA, December 2008.

  67. V. Hautamäki, P. Nykänen and P. Fränti, "Time-series clustering by approximate prototypes", IAPR Int. Conf. on Pattern Recognition (ICPR'08), Tampa, Florida, USA, December 2008. (pdf) (code)

  68. Q. Zhao, M. Xu and P. Fränti, "Knee point detection on bayesian information criterion", IEEE Int. Conf. Tools with Artificial Intelligence (ICTAI'08), Dayton, Ohio, USA, 431-438, November 2008. (pdf)

  69. Q. Zhao, V. Hautamäki and P. Fränti, "Knee point detection in BIC for detecting the number of clusters", Advanced Concepts for Intelligent Vision Systems (ACIVS'08), Juan-les-Pins, France, LNCS vol. 5259, 664 673, October 2008. (pdf)

  70. P. Fränti, M. Tuononen and O. Virmajoki, "Deterministic and randomized local search algorithms for clustering", IEEE Int. Conf. on Multimedia and Expo, (ICME'08), Hannover, Germany, 837-840, June 2008. (pdf)

  71. M. Tuononen, R. González Hautamäki and P. Fränti, "Automatic voice activity detection in different speech applications", Int. Conf. on Forensic Applications and Techniques in Telecommunications, Information and Multimedia (e-Forensics'08), Adelaide, Australia, Article No.12, January 2008. (pdf)

  72. A. Podlasov, P. Kopylov and P. Fränti, "Statistical filtering of raster map images using a context tree model", Int. Conf. Signal-Image Technology & Internet-based Systems (IEEE-SITIS'07), Shanghai, China, 467-474, December 2007. (pdf)

  73. V. Hautamäki, M. Tuononen, T. Niemi-Laitinen and P. Fränti, "Improving speaker verification by periodicity based voice activity detection", Int. Conf. on Speech and Computer (SPECOM'07), Moscow, Russia, vol. 2, 645-650, October 2007. (pdf)

  74. T. Kinnunen, E. Chernenko, M. Tuononen, P. Fränti and H. Li, "Voice activity detection using MFCC features and support vector machine", Int. Conf. on Speech and Computer (SPECOM'07), Moscow, Russia, vol. 2, 556-561, October 2007. (pdf)

  75. A. Podlasov, A. Kolesnikov and P. Fränti, "Lossy compression of scanned map images", Int. Conf. on Computer Graphics and Vision (GraphiCon'07), Moscow, Russia, 79-83, June 2007. (pdf)

  76. T. Kinnunen, V. Hautamäki and P. Fränti, "On the use of long-term average spectrum in automatic speaker recognition", Int. Symp. on Chinese Spoken Language Processing (ISCSLP'06), Singapore, 559-567, December 2006.

  77. R. Timofte, V. Hautamäki and P. Fränti, "Speaker, vocabulary and context independent word spotting system in continuous speech", Int. Symp. on Chinese Spoken Language Processing (ISCSLP'06), Singapore, 396-407, December 2006.

  78. A. Podlasov and P. Fränti, "Merge-based color quantization and context tree modeling for compression of color quantized images", IEEE Int. Conf. on Image Processing (ICIP'06), Atlanta, Georgia, USA, 2277-2280, October 2006.

  79. H. Huang, S. Rahardja, X. Lin, R. Yu and P. Fränti, "The cascaded RLS-LMS prediction in MPEG-4 lossless audio coding", IEEE Int. Conf. on Acoustics, Speech, and Signal Processing, (ICASSP'06), Toulouse, France, vol. 5, 181-184, May 2006.

  80. A. Akimov, A. Kolesnikov and P. Fränti, "Lossless compression of color map images by context tree modeling", IEEE Data Compression Conference (DCC'06), Snowbird, Utah, USA, 412-421, March 2006.

  81. I. Kärkkäinen and P. Fränti, "Gradual model generator for single-pass clustering", IEEE Int. Conf. on Data Mining (ICDM'05), Houston, Texas, 681-684, November 2005.

  82. J. Saastamoinen, Z. Fiedler, T. Kinnunen and P. Fränti, "On factors affecting MFCC-based speaker recognition accuracy", Int. Conf. on Speech and Computer (SPECOM'05), Patras, Greece, 503-506, October 2005. (pdf)

  83. H. Gupta, V. Hautamäki, T. Kinnunen and P. Fränti, "Field evaluation of text-dependent speaker recognition in an access control application", Int. Conf. on Speech and Computer (SPECOM'05), Patras, Greece, 551-554, October 2005.

  84. A. Kolesnikov and P. Fränti, "Optimal algorithm for convexity measure calculation", IEEE Int. Conf. on Image Processing (ICIP'05), Genoa, Italy, vol. 1, 353-356, September 2005.

  85. A. Kolesnikov and P. Fränti, "Min-# polygonal approximation of closed curves", IEEE Int. Conf. on Image Processing (ICIP'05), Genoa, Italy, vol. 2, 522-525, September 2005.

  86. I. Cleju, P. Fränti, X. Wu, "Clustering by principal curve with tree structure", Int. Symposium on Signals, Circuits & Systems (ISSCS'05), vol. 2, 617-620, Iasi, Romania, July 2005. (pdf)

  87. A. Akimov, A. Kolesnikov and P. Fränti, Context tree modeling of chain codes for contour compression", Scandinavian Conf. on Image Analysis (SCIA'05), Joensuu, Finland, LNCS vol. 3540, 312-321, June 2005.

  88. R. Bednarik, T. Kinnunen, A. Mihaila and P. Fränti, "Eye-movements as a biometric", Scandinavian Conf. on Image Analysis (SCIA'05), Joensuu, Finland, LNCS vol. 3540, 780-789, June 2005. (pdf)

  89. S. Cherednichenko, V. Hautamäki, T. Kinnunen, I. Kärkkäinen and P. Fränti, "Improving k-means by outlier removal", Scandinavian Conf. on Image Analysis (SCIA'05), Joensuu, Finland, LNCS vol. 3540, 978-987, June 2005. (pdf)

  90. I. Cleju, P. Fränti, X. Wu, "Clustering based on principal curve", Scandinavian Conf. on Image Analysis (SCIA'05), Joensuu, Finland, LNCS vol. 3540, 872-881, June 2005. (pdf)

  91. T. Niemi-Laitinen, J. Saastamoinen, T. Kinnunen, and P. Fränti, "Applying MFCC-based automatic speaker recognition to GSM and forensic data", 2nd Baltic Conf. on Human Language Technologies (HLT'05), 317-322, Tallinn, Estonia, April 2005.

  92. P. Kopylov and P. Fränti, "Filtering of color map images by context tree modeling", IEEE Int. Conf. on Image Processing (ICIP'04), Singapore, vol. 1, 267-270, October 2004.

  93. A. Akimov, A. Kolesnikov and P. Fränti, "Reference line approach for vector data compression", IEEE Int. Conf. on Image Processing (ICIP'04), Singapore, vol. 2, 1891-1894, October 2004.

  94. A. Kolesnikov and P. Fränti, "Optimal multiresolution approximation of vector maps", IEEE Int. Conf. on Image Processing (ICIP'04), Singapore, vol. 3, 3037-3040, October 2004.

  95. I. Kärkkäinen and P. Fränti, "Variable metric for binary vector quantization", IEEE Int. Conf. on Image Processing (ICIP'04), Singapore, vol. 3, 3499-3502, October 2004.

  96. M. Xu and P. Fränti, "A heuristic k-means clustering algorithm by kernel PCA", IEEE Int. Conf. on Image Processing (ICIP'04), Singapore, vol. 3, 3503-3506, October 2004.

  97. T. Kinnunen, E. Karpov and P. Fränti, "Real-time speaker identification", Int. Conf. on Spoken Language Processing, (ICSLP'04), Jeju Island, Korea, vol 3, 1805-1808, October 2004.

  98. T. Kinnunen, E. Karpov and P. Fränti, "Efficient online cohort selection method for speaker verification", Int. Conf. on Spoken Language Processing, (ICSLP'04), Jeju Island, Korea, vol 3, 2401-2405, October 2004.

  99. R. Bednarik and P. Fränti, "Survival of students with different learning preferences", Annual Finnish/Baltic Sea Conference on Computer Science Education (Koli Calling 2004), Koli, Finland, 121-125, October 2004. (pdf)

  100. J. Saastamoinen, E. Karpov and P. Fränti, "Automatic speaker recognition for series 60 mobile devices", Int. Conf. Speech and Computer (SPECOM'2004), St. Petersburg, Russia, 353-360, September 2004.

  101. T. Kinnunen, V. Hautamäki and P. Fränti, "Fusion of spectral feature sets for accurate speaker identification", Int. Conf. Speech and Computer (SPECOM'2004), St. Petersburg, Russia, 361-365, September 2004.

  102. E. Karpov, T. Kinnunen and P. Fränti, "Symmetric distortion measure for speaker recognition", Int. Conf. Speech and Computer (SPECOM'2004), St. Petersburg, Russia, 366-370, September 2004.

  103. A. Akimov and P. Fränti, "Grammar-based compression using multi-phase hierarchical segmentation", IASTED Conf. on Visualization, Imaging, and Image Processing (VIIP'04), Marbella, Spain, 364-368, September 2004.

  104. A. Akimov, A. Kolesnikov and P. Fränti, "Coordinate quantization in vector map compression", IASTED Conf. on Visualization, Imaging, and Image Processing (VIIP'04) , Marbella, Spain, 748-753, September 2004.

  105. P. Kopylov and P. Fränti, "Color quantization of map images", IASTED Conf. on Visualization, Imaging, and Image Processing (VIIP'04) , Marbella, Spain, 837-842, September 2004.

  106. O. Virmajoki and P. Fränti, "Divide-and-conquer algorithm for creating neighborhood graph for clustering", IAPR Int. Conf. on Pattern Recognition (ICPR'04), Cambridge, UK, vol. 1, 264-267, August 2004. (pdf)

  107. A. Kolesnikov, P. Fränti and X. Wu, "Multiresolution polygonal approximation of digital curves", IAPR Int. Conf. on Pattern Recognition (ICPR'04), Cambridge, UK, vol. 2, 855-858, August 2004.

  108. V. Hautamäki, I. Kärkkäinen and P. Fränti, "Outlier detection using k-nearest neighbour graph", IAPR Int. Conf. on Pattern Recognition (ICPR'04), Cambridge, UK, vol. 3, 430-433, August 2004. (pdf)

  109. M. Xu and P. Fränti, "Delta-MSE dissimilarity in suboptimal K-means clustering", IAPR Int. Conf. on Pattern Recognition (ICPR'04), Cambridge, UK, vol. 4, 577-580, August 2004.

  110. M. Xu and P. Fränti, "Iterative k-means algorithm based on Fisher discriminant", Int. Conf. on Information Fusion, Stockholm, Sweden, vol. 1, 70-73, June 2004.

  111. A. Akimov and P. Fränti, "Symbol representation in map image compression", ACM Symposium on Applied Computing (SAC'04), Nicosia, Cyprus, vol. 1, 29-34, March 2004.

  112. P. Fränti and O. Virmajoki, "Genetic algorithm using iterative shrinking for solving clustering problems", Proc. Wessex Data Mining Conf. 2003, Rio de Janeiro, Brasil, 193-204, December 2003.

  113. P. Fränti, O. Virmajoki and V. Hautamäki "Fast PNN-based clustering using k-nearest neighbor graph", IEEE Int. Conf. on Data Mining (ICDM'03), Melbourne, Florida, USA, 525-528, November 2003.

  114. A. Kolesnikov and P. Fränti, "Fast algorithm for multiple-objects min-e problem", IEEE Int. Conf. on Image Processing (ICIP'03), Barcelona, Spain, vol. 1, 221-224, September 2003.

  115. T. Kinnunen, V. Hautamäki and P. Fränti, "On the fusion of dissimilarity-based classifiers for speaker identification", European Conf. on Speech Communiation and Technology, (Eurospeech'2003), Geneva, Switzerland, 2641-2644, September 2003.

  116. A. Kolesnikov and P. Fränti, "Polygonal approximation of closed contours", Scandinavian Conf. on Image Analysis (SCIA'03), Göteborg, Sweden, LNCS vol. 2749, 778-785, June 2003.

  117. M. Xu and P. Fränti, "Context clustering in lossless compression of gray-scale image", Scandinavian Conf. on Image Analysis (SCIA'03) , Göteborg, Sweden, LNCS vol. 2749, 328-334, June 2003.

  118. T. Kinnunen, E. Karpov and P. Fränti, "A speaker pruning algorithm for real-time speaker identification", Int. Conf. on Audio- and Video-Based Biometric Person Authentication (AVBPA'03), Guildford, UK, 639-646, June 2003.

  119. P. Kopylov, and P. Fränti, "Optimal layer ordering in the compression of map images", IEEE Data Compression Conference (DCC'03), Snowbird, Utah, USA, 323-332, April 2003.

  120. O. Virmajoki and P. Fränti, "Multilevel thresholding by fast PNN based algorithm", SPIE Conf. on Image Processing: Algorithms and Systems, Santa Clara, USA, SPIE Vol. 5014, 123-134, January 2003.

  121. P. Fränti and V. Hautamäki, "Compression of aerial images for reduced-color devices", SPIE Conf. on Image and Video Communications and Processing, Santa Clara, USA, SPIE Vol. 5022, Part II, 651-662, January 2003.

  122. P. Fränti, P. Kopylov and V. Veis, "Dynamic use of map images in mobile environment", IEEE Int. Conf. on Image Processing (ICIP'02), Rochester, New York, USA, vol. 3, 917-920, September 2002.

  123. O. Virmajoki, P. Fränti and T. Kaukoranta, "Iterative shrinking method for generating clustering", IEEE Int. Conf. on Image Processing (ICIP'02), Rochester, New York, USA, vol. 2, 685-688, September 2002.

  124. A. Akimov, P. Kopylov and P. Fränti, "Semi-adaptive dictionary based compression of map images", GraphiCon'2002, Nizhny Novgorod, Russia, 218-224, September 2002.

  125. I. Kärkkäinen and P. Fränti, "Stepwise algorithm for finding unknown number of clusters", Advanced Concepts for Intelligent Vision Systems (ACIVS'2002), Gent, Belgium, 136-143, September 2002. (pdf)

  126. P. Fränti and O. Virmajoki, "Polynomial-time clustering algorithms derived from branch-and-bound technique", Advanced Concepts for Intelligent Vision Systems (ACIVS'2002), Gent, Belgium, 118-123, September 2002. (pdf)

  127. P. Fränti and M. Xu, "Genetic local repartition for solving dynamic clustering problems", Int. Conf. on Signal Processing (ICSP'02), Beijing, China, vol. 2, 1128-1133, August 2002.

  128. P. Fränti, O. Virmajoki and T. Kaukoranta, "Branch-and-bound technique for solving optimal clustering", Int. Conf. on Pattern Recognition (ICPR'02), Québec, Canada, vol. 2, 232-235, August 2002. (pdf)

  129. P. Fränti and M. Xu, "Classification of binary vectors by using DSC-distance", Int. Conf. on Pattern Recognition (ICPR'02), Québec, Canada, vol. 2, 52-55, August 2002.

  130. A. Kolesnikov and P. Fränti, "A fast near-optimal algorithm for approximation of polygonal curves", Int. Conf. on Pattern Recognition (ICPR'02), Québec, Canada, vol. 4, 335-338, August 2002.

  131. I. Kärkkäinen and P. Fränti, "Dynamic local search for clustering with unknown number of clusters", Int. Conf. on Pattern Recognition (ICPR'02), Québec, Canada, vol. 2, 240-243, August 2002. (pdf)

  132. P. Fränti, E. Ageenko, P. Kopylov, S. Gröhn and F. Berger, "Map image compression for real-time applications", Joint Int. Symposium on Geospatial Theory, Processing and Applications (Geomatics'2002), Ottawa, Canada, 15 pages, July 2002.

  133. P. Fränti, P.Kopylov and E. Ageenko, "Evaluation of compression methods for digital map images", IASTED Int. Conf. on Automation, Control and Information Technology (ACIT 2002), Novosibirsk, Russia, 418-422, June 2002.

  134. A. Kolesnikov and P. Fränti, "A fast near-optimal min-# approximation of digitized curves", IASTED Int. Conf. on Automation, Control and Information Technology (ACIT 2002), Novosibirsk, Russia, 401-405, June 2002.

  135. P. Fränti, E. Ageenko, P. Kopylov and S. Gröhn, "Compressing multi-component digital maps using JBIG2", IEEE Int. Conf. on Acoustics, Speech, and Signal Processing, (ICASSP'02), Orlando, Florida, USA, vol.3, 2677-2680, May, 2002.

  136. G. Hariharan, P. Fränti and S. Mehta, "Data Mining for Personal Navigation",Data Mining and Knowledge Discovery: Theory, Tools, and Technology IV, Orlando, Florida, USA, vol. 4730, 355-365, April, 2002. (pdf)

  137. P. Kopylov and P. Fränti, "Context tree compression of multi-component map images", IEEE Data Compression Conference (DCC'02), Snowbird, Utah, USA, 212-221, April 2002.

  138. O. Virmajoki, P. Fränti and T. Kaukoranta, "Fast PNN using mean-distance ordered search", Int. Conf. on Information, Communications and Signal Processing (ICICS'01), Singapore, October, 2001.

  139. E.I. Ageenko, P. Kopylov and P. Fränti, "On the size and shape of multi-level context templates for compression of map images", IEEE Int. Conf. on Image Processing (ICIP'01), Thessaloniki, Greece, vol.3, 458-461, October 2001.

  140. O. Virmajoki, P. Fränti and T. Kaukoranta, "Fast PNN using partial distortion search", Int. Conf. on Computer Analysis of Images and Patterns (CAIP'01) , Warsaw, Poland, 77-84, September, 2001.

  141. T. Kinnunen, I. Kärkkäinen and P. Fränti, "Is speech data clustered? - statistical analysis of cepstral features", European Conf. on Speech Communiation and Technology, (EUROSPEECH'2001), Aalborg, Denmark, Vol. 4, pp. 2627-2630, September, 2001.

  142. T. Kinnunen and P. Fränti, "Speaker discriminative weighting method for VQ-based speaker identification", Int. Conf. on Audio- and Video-Based Biometric Person Authentication (AVBPA'01), Halmstad, Sweden, 150-156, June 2001.

  143. P. Fränti, E.I. Ageenko, H. Kälviäinen and S. Kukkonen, "On the use of Hough transform for context-based image compression in hybrid raster/vector applications", Indian Conf. on Computer Vision, Graphics and Image Processing (ICVGIP'00), Bangalore, India, 364-372, 2000.

  144. T. Kinnunen, T. Kilpeläinen and P. Fränti, "Comparison of clustering algorithms in speaker identification", IASTED Int. Conf. on Signal Processing and Communications (SPC'00), Marbella, Spain, 222-227, 2000.

  145. V. Efimov, P. Fränti, A. Kolesnikov and A. Nesterov, "Optimal filtering of time jitter noise at amplitude-pulse modulation", IASTED Int. Conf. on Signal Processing and Communications (SPC'00), Marbella, Spain, 299-302, 2000.

  146. I. Kärkkäinen and P. Fränti, "Minimization of the value of Davies-Bouldin index", IASTED Int. Conf. on Signal Processing and Communications (SPC'00), Marbella, Spain, 426-432, 2000.

  147. P. Fränti, A. Mednonogov and H. Kälviäinen, "Hough transform for rotation invariant matching of line-drawing images", Int. Conf. on Pattern Recognition (ICPR'00), Barcelona, Spain, 379-382, vol. 4, 2000.

  148. E.I. Ageenko, P. Kopylov and P. Fränti "Optimizing context template for compression of multi-component map images", GraphiCon, Moscow, Russia, 151-156, 2000.

  149. P. Fränti, A. Mednonogov and H. Kälviäinen, "Content-based retrieval of line-drawing images using angular information of Hough transform", GraphiCon, Moscow, Russia, 51-55, 2000.

  150. E.I. Ageenko and P. Fränti, "Compression of large binary images in digital spatial libraries", SPIE Conf. on Storage and Retrieval for Image and Video Databases, San Jose, CA, SPIE vol. 3972, 301-309, 2000.

  151. E.I. Ageenko and P. Fränti, "Context-based filtering for document image compression", SPIE Conf. on Document Recognition and Retrieval, San Jose, CA, SPIE vol. 3967, 78-87, 2000.

  152. P. Fränti and E.I. Ageenko, "On the use of context tree for binary image compression", IEEE Int. Conf. on Image Processing (ICIP'99), Kobe, Japan, vol. 3, 752-756, 1999.

  153. E.I. Ageenko and P. Fränti, "Forward adaptive modeling for context-based compression of large binary images in applications requiring spatial access", IEEE Int. Conf. on Image Processing (ICIP'99), Kobe, Japan, vol. 3, 757-761, 1999.

  154. P. Fränti and J. Kivijärvi, "Random swapping technique for improving clustering in unsupervised classification", 11th Scandinavian Conf. on Image Analysis (SCIA'99), Kangerlussuaq, Greenland, 407-413, 1999.

  155. P. Fränti, "On the usefulness of self-organizing maps for the clustering problem in vector quantization", 11th Scandinavian Conf. on Image Analysis (SCIA'99), Kangerlussuaq, Greenland,415-422, 1999. (pdf)

  156. T. Kaukoranta, P. Fränti and O. Nevalainen, "Reduced comparison search for the exact GLA", IEEE Data Compression Conference (DCC'99), Snowbird, Utah, USA, 33-41, April 1999.

  157. P. Fränti, E.I. Ageenko, H. Kälviäinen and S. Kukkonen, "Compression of line drawing images using Hough transform for exploiting global dependencies", Joint Conf. on Information Sciences (JCIS'98), NC, USA, vol. 4, 433-436, 1998.

  158. T. Kaukoranta, P. Fränti and O. Nevalainen, "A new iterative codebook generation method in vector quantization", IEEE Int. Conf. on Image Processing (ICIP'98), Chicago, IL, USA, vol. 2, 589-593, October 1998.

  159. P. Fränti and T. Kaukoranta, "Fast implementation of the optimal PNN method", IEEE Int.Conf. on Image Processing (ICIP'98), Chicago, IL, USA vol. 3, 104-108, October 1998.

  160. P. Fränti, E.I. Ageenko, A.N. Kolesnikov and I.O. Chalenko, "Compression of line-drawing images using vectorizing and feature-based filtering", Int. Conf. on Computer Graphics and Visualization (GraphiCon'98), Moscow, Russia, 219-224, 1998.

  161. T. Kaukoranta, P. Fränti, and O. Nevalainen "Fast and space efficient PNN algorithm with delayed distance calculations", 8th Int. Conf. on Computer Graphics and Visualization (GraphiCon'98), Moscow, Russia, 239-244, 1998.

  162. P. Fränti: "Image quality measure based on local visual properties", Picture Coding Symposium, Berlin, Germany, 217-220, 1997.

  163. E.I. Ageenko and P. Fränti: "Storage system for document imaging applications", Picture Coding Symposium, Berlin, Germany, 361-364, 1997.

  164. P. Fränti, J. Kivijärvi, T. Kaukoranta and O. Nevalainen: "Genetic algorithms for codebook generation in vector quantization", 3rd Nordic Workshop on Genetic Algorithms, Helsinki, Finland, 207-222, 1997.

  165. P. Fränti, T. Kaukoranta and O. Nevalainen: "Blockwise distortion measure in image compression", SPIE Conf. on Very High Resolution and Quality Imaging, San Jose, CA, USA, SPIE vol. 2663, 78-87, 1996.

  166. T. Kaukoranta, P. Fränti and O. Nevalainen: "Empirical study on subjective quality evaluation of compressed images", SPIE Conf. on Very High Resolution and Quality Imaging, San Jose, CA, USA, SPIE vol. 2663, 88-99, 1996.

  167. P. Fränti, T. Kaukoranta and O. Nevalainen: "A new approach to BTC-VQ image compression system", Picture Coding Symposium, Sacramento, CA, USA, 162-165, 1994.

Selected other papers:

  1. P. Fränti, "Mobile navigation for a broad consumer's market: dynamic map handling", GIM International, 17 (1), January 2003. (pdf)




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