Research interests

Journal publications:

1. 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, Vol. 30, No. 4, pp. 341-347, March, 2009.
2. V. Hautamäki, T. Kinnunen, and P. Fränti, "Text-Independent Speaker Recognition Using Graph Matching", Pattern Recognition Letters, Vol. 29, No. 9, pp. 1427-1432, July, 2008. [PDF]
3. 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, Vol. 15, pp. 162-165. 2008.[PDF]
4. P. Fränti, O. Virmajoki and V. Hautamäki, "Fast agglomerative clustering using k nearest neighbor graph", IEEE Transactions on Pattern Analysis and Machine Intelligence , Vol. 28, No. 11, pp. 1875-188, November, 2006. [PDF]
5. J. Saastamoinen, E. Karpov, V. Hautamäki and P. Fränti, "Accuracy of MFCC based speaker recognition in series 60 device", Journal of Applied Signal Processing, Vol. 17, pp. 2816-2827, September, 2005. [PDF]

Conference publications:

1. Van Hai Do, Xiong Xiao, Ville Hautamäki, Eng Siong Chng, "Speech Attribute Recognition using Context-Dependent Modeling", In APSIPA ASC 2011, October, Xi'an, China.[PDF]
2. Qinpei Zhao, V. Hautamäki and Pasi Fränti, "RSEM: an accelerated algorithm on repeated EM", ICIG 2011.
3. Ville Hautamäki, Kong Aik Lee,Tomi Kinnunen, Bin Ma, and Haizhou Li, "Regularized Logistic Regression Fusion for Speaker Verification", In Interspeech 2011, pp. 2745-2748, August,Florence, Italy. [PDF]
4. Kong Aik Lee, Chang Huai You, Ville Hautamäki, Anthony Larcher,and Haizhou Li, "Spoken Language Recognition in the Latent Topic Simplex", In Interspeech 2011, pp. 2893--2896, August, Florence, Italy. [PDF]
5. Filip Sedlak, Tomi Kinnunen, Ville Hautamäki, Kong Aik Lee,and Haizhou Li, "Classifier Subset Selection and Fusion for Speaker Verification", In ICASSP 2011 [PDF][video and slides].
6. Ville Hautamäki, Tomi Kinnunen, Mohaddeseh Nosratighods, Kong Aik Lee, Bin Ma, and Haizhou Li , "Approaching Human Listener Accuracy with Modern Speaker Verification", In Interspeech 2010, Makuhari, Japan, pp. 1473-1476, September 2010. [PDF]
7. Raymond W. M. Ng, Cheung-Chi Leung, Ville Hautamäki, Tan Lee, Bin Ma, and Haizhou Li , "Towards long-range prosodic attribute modeling for language recognition", In Interspeech 2010, Makuhari, Japan, 1792-1795, September 2010.
8. P. Fränti, A. Tabarcea, J. Kuittinen, and V. Hautamäki " Location-based Search Engine for Multimedia Phones", In ICME 2010.
9. A. Tabarcea, V. Hautamäki, and P. Fränti,"Ad-hoc Georeferencing of Web-pages Using Street-name Prefix Trees", In 6th International Conference on Web Information Systems and Technologies (WEBIST 2010).
10. Q. Zhao, V. Hautamäki, I. Kärkkäinen, and P. Fränti, "Randon Swap EM algorithm for Finite Mixture Models in Image Segmentation", In Proc. IEEE Int. Conf. on Image Processing (ICIP 2009),Cairo, Egypt, pp. 2397-2400, November 2009.
11. T. Kinnunen, J. Saastamoinen, V. Hautamäki, M. Vinni, and P. Fränti, "Comparing Maximum A Posteriori Vector Quantization and Gaussian Mixture Models in Speaker Verification", In Proc. IEEE Int. Conf. on Acoustics, Speech, and Signal Processing (ICASSP 2009), Taipei, Taiwan, pp. 4545-4548, April 2009.
12. P. Fränti, J. Saastamoinen, I. Kärkkäinen, T. Kinnunen, V. Hautamäki, and I. Sidoroff, "Developing Speaker Recognition System: from Prototype to Practical Application", In Proc. e-Forensics 2009 (accepted).
13. Q. Zhao, V. Hautamäki, P. Fränti," Knee Point Detection in BIC for Detecting the Number of Clusters", Advanced Concepts for Intelligent Vision Systems (ACIVS 2008), Juan-les-Pins, France, pp. 664-673, October 2008. [PDF]
14. V. Hautamäki, P. Nykänen and P. Fränti, "Time-series Clustering by Approximate Prototypes", 19th International Conference on Pattern Recognition (ICPR 2008), Tampa, Florida, USA, December, 2008. [PDF]
15. P. Fränti, O. Virmajoki and V. Hautamäki, "Probabilistic Clustering by Random Swap Algorithm", 19th International Conference on Pattern Recognition (ICPR 2008), Tampa, Florida, USA, December, 2008.
16. V. Hautamäki, M. Tuononen, T. Niemi-Laitinen and P. Fränti, Improving Speaker Verification by Periodicity Based Voice Activity Detection, Proc. 12th International Conference on Speech and Computer (SPECOM 2007), Vol. 2, pp. 645-650, Moscow, October 2007.[PDF]
17. T. Kinnunen, V. Hautamäki and P. Fränti, On the Use of Long-Term Average Spectrum in Automatic Speaker Recognition, Proc. 5th International Symposium on Chinese Spoken Language Processing (ISCSLP 2006), Vol II, Singapore, pp. 559-567, December 2006.
18. R. Timofte, V. Hautamäki and P. Fränti, Speaker, Vocabulary and Context Independent Word Spotting System for Continuous Speech, Proc. 5th International Symposium on Chinese Spoken Language Processing (ISCSLP 2006), Vol II, Singapore, pp. 396-407, December 2006.
19. H. Gupta, V. Hautamäki, T. Kinnunen and P. Fränti, Field Evaluation of Text-Dependent Speaker Recognition in an Access Control Application, Proc. 10th International Conference on Speech and Computer (SPECOM 2005), pp. 551-554, Patras, Greece, October 2005. [PDF]
20. V. Hautamäki, S. Cherednichenko, I. Kärkkäinen, T. Kinnunen and P. Fränti, Improving K-Means by Outlier Removal, Proc. 14th Scandinavian Conference on Image Analysis (SCIA 2005), pp. 978-987, Joensuu, Finland, June 2005. [PDF]
21. T. Kinnunen, V. Hautamäki, P. Fränti, Fusion of Spectral Feature Sets for Accurate Speaker Identification, Proc. 9th International Conference Speech and Computer (SPECOM 2004), pp. 361-365, St. Petersburg, Russia, September, 2004. [PDF]
22. J. Saastamoinen, E. Karpov, V. Hautamäki and P. Fränti, "Automatic Speaker Recognition for Series 60 Mobile Devices", In Proc. 9th International Conference Speech and Computer (SPECOM'2004), pp. 353-360, St. Petersburg, Russia, September 20-22, 2004.
23. V. Hautamäki, I. Kärkkäinen and P. Fränti, "Outlier Detection Using k-Nearest Neighbour Graph", 17th International Conference on Pattern Recognition (ICPR 2004), pp. 430-433, Cambridge, United Kingdom, August, 2004. [PDF]
24. P. Fränti, O. Virmajoki and V. Hautamäki, "Fast PNN-based clustering using k-nearest neighbor graph", IEEE International Conference on Data Mining (ICDM 2003), Melbourne, Florida, USA, 525-528, November 2003.
25. T. Kinnunen, V. Hautamäki and P. Fränti, "On the fusion of dissimilarity- based classifiers for speaker identification", European Conference on Speech Communiation and Technology, (Eurospeech 2003), Geneva, Switzerland, 2641-2644, September 2003. [PDF]
26. P. Fränti and V. Hautamäki, "Compression of aerial images for reduced-color devices", SPIE Conference on Image and Video Communications and Processing,Santa Clara, USA, SPIE Vol. 5022, Part II, 651-662, January 2003. [PDF]

Theses:

1. Ville Hautamäki, Improving Pattern Recognition Methods for Speaker Recognition, PhD thesis, University of Joensuu, Deparment of Computer Science, October 2008. [PDF]
2. Ville Hautamäki, Efficient Color Quantization by Hierarchical Clustering Algorithms, Master's thesis, University of Joensuu, Deparment of Computer Science, February 2005. [PDF]
3. Ville Hautamäki and Jussi Heino, Evaluation of image compression methods for aerial photos, Bachelor's Thesis, University of Joensuu, Department of Computer Science, December 2000. [PDF]

Other publications:

1. P. Fränti, J. Saastamoinen, I. Kärkkäinen, T. Kinnunen, V. Hautamäki, I. Sidoroff, Implementing Speaker Recognition System: from Matlab to Practice, Report series / University of Joensuu, Department of Computer Science and Statistics, A-2007-4 (ISBN 978-952-219-061-1, ISSN 1796-7317), November 2007.