Refereed papers

[19] R. Sassi, and L. T. Mainardi, An estimate of the dispersion of repolarization times based on a biophysical model of the ECG, IEEE Transactions on Biomedical Engineering, vol. 58(12), pp. 3396-3405, 2011. ISSN: 0018-9294 . [PDF::DOI]
[18] L. T. Mainardi and R. Sassi, Analysis of T-wave alternans using the dominant T-wave paradigm, Journal of Electrocardiology, vol. 44, pp. 119-125, 2011. ISSN: 0022-0736. [PDF::DOI]
[17] R. Sassi, V. D. Corino and L. T. Mainardi, Analysis of Surface Atrial Signals: Time Series with Missing Data?, Annals of Biomedical Engineering, vol. 37, pp. 2082-2092, 2009. ISSN: 0090-6964. [PDF]
[16] R. Sassi, M. G. Signorini and S. Cerutti, Multifractality and heart rate variability, Chaos, vol. 19, pp. 028507-1-5, 2009. ISSN: 1054-1500. The paper was also selected for the Volume 18, Issue 1 of Virtual Journal of Biological Physics Research. [PDF]
[15] A. Azzini, S. Marrara, R. Sassi, and F. Scotti, A fuzzy approach to multimodal biometric continuous authentication, Fuzzy Optimization and Decision Making, vol. 7, pp. 243-256, 2008. ISSN: 1568-4539. [PDF]
[14] S. Cimato, R. Sassi, and F. Scotti, Biometrics and privacy, Recent Patents on Computer Science, vol. 1, pp. 98-109, June 2008. ISSN: 1874-4796. [Abstract]
[13] N. J. Balmforth, R. V. Craster, P. Perona, A. C. Rust, and R. Sassi, Viscoplastic dam breaks and the Bostwick consistometer, Journal of Non-Newtonian Fluid Mechanics, vol. 142, pp. 63-78, 2007. ISSN: 0377-0257. [PDF]
[12] S. Cerutti, F. Esposti, M. Ferrario, R. Sassi, and M. G. Signorini, Long-term invariant parameters obtained from 24-h Holter recordings: a comparison between different analysis techniques, Chaos, vol. 17, pp. 015108-1-9, 2007. ISSN: 1054-1500. The paper was also selected for the Volume 13, Issue 7 of Virtual Journal of Biological Physics Research. [PDF]
[11] R. Maestri, G. D. Pinna, A. Accardo, P. Allegrini, R. Balocchi, G. D'Addio, M. Ferrario, D. Menicucci, A. Porta, R. Sassi, M. G. Signorini, M. T. La Rovere, and S. Cerutti, Nonlinear indices of heart rate varibility in chronic heart failure patients: Redundancy and comparative clinical value, Journal of Cardiovascular Electrophysiology, vol. 18, pp. 425-433, 2007. ISSN: 1045-3873. [PDF]
[10] R. Maestri, G. D. Pinna, A. Porta, R. Balocchi, R. Sassi, M. G. Signorini, M. Dudziak, and G. Raczak, Assessing nonlinear properties of heart rate variability from short-term recordings: are these measurements reliable?, Physiological Measurement, vol. 28, pp. 1067-1077, 2007. ISSN: 0967-3334. [PDF]
[9] N. J. Balmforth, R. V. Craster, A. Rust, and R. Sassi, Viscoplastic flow over an inclined surface, Journal of Non-Newtonian Fluid Mechanics, vol. 139, pp. 103-127, 2006. ISSN: 0377-0257. The paper was further republished with typographical errors removed in J. Non-Newtonian Fluid Mech. 142, 219–243 (2007). [PDF]
[8] V. D. A. Corino, R. Sassi, L. T. Mainardi, and S. Cerutti, Signal processing methods for information enhancement in atrial fibrillation: spectral analysis and non-linear parameters, Biomedical Signal Processing And Control, vol. 1, pp. 271-281, 2006. ISSN: 1746-8094. [PDF]
[7] R. Maestri, G. D. Pinna, R. Balocchi, G. D'Addio, M. Ferrario, A. Porta, R. Sassi, M. G. Signorini, and M. T. La Rovere, Clinical correlates of non-linear indices of heart rate variability in chronic heart failure patients, Biomedizinische Technik (Biomedical engineering), vol. 51, pp. 220-223, 2006. ISSN: 0013-5585. (Biomedical engineering). Special Issue: 30 papers were selected from the ESGCO 2006 Conference and further went through a second revision process before being published on the journal. [PDF]
[6] R. Sassi, S. Cerutti, K. Hnatkova, M. Malik, and M. G. Signorini, HRV scaling exponent identifies post-infarction patients who might benefit from prophylactic treatment with amiodarone, IEEE Transactions on Biomedical Engineering, vol. 53, pp. 103-110, 2006. ISSN: 0018-9294. [PDF]
[5] N. J. Balmforth, R. V. Craster, and R. Sassi, Dynamics of cooling viscoplastic domes, Journal of Fluid Mechanics, vol. 499, pp. 149-182, 2004. ISSN: 0022-1120. [PDF]
[4] N. J. Balmforth, R. V. Craster, and R. Sassi, Shallow viscoplastic flow on an inclined plane, Journal of Fluid Mechanics, vol. 470, pp. 1-29, 2002. ISSN: 0022-1120. [PDF]
[3] N. J. Balmforth, A. Provenzale, and R. Sassi, A hierarchy of coupled maps, Chaos, vol. 12, pp. 719-731, 2002. ISSN: 1054-1500. [PDF]
[2] N. J. Balmforth and R. Sassi, A shocking display of synchrony, Physica D, vol. 143, pp. 21-55, 2000. ISSN: 0167-2789. [PDF]
[1] M. T. Raimondi, R. Sassi, and R. Pietrabissa, A method for the evaluation of the change in volume of retrieved acetabular cups, Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine, vol. 214, pp. 577-587, 2000. ISSN: 0954-4119. [PDF]

Books and book chapters

[3] F. Scotti, S. Cimato and R. Sassi, Encyclopedia of Cryptography and Security, 2nd ed., ch. Biometric privacy, pp. 101-104. H.C.A. van Tilborg and S. Jajodia editors. Springer, 2011. ISBN: 978-1-441-95905-8. [PDF]
[2] S. Cimato, M. Gamassi, V. Piuri, R. Sassi, and F. Scotti, Biometrics: Theory, Methods, and Applications, ch. Privacy in Biometrics, pp. 633-654. N. V. Boulgouris, K. N. Plataniotis and E. Micheli-Tzanakou editors. Wiley-IEEE Press, November 2009. ISBN: 978-0-470-24782-2.
[1] M. G. Signorini, R. Sassi, and S. Cerutti, Nonlinear biomedical signal processing, Volume II: Dynamic Analysis and Modelling, ch. Assessment of nonlinear dynamics in heart rate variability signals, pp. 263-281. Metin Akay ed. NEW YORK - USA: Wiley-IEEE Press, 2000. ISBN: 978-0-7803-6012-9

Conference papers

[26] L. T. Mainardi, M. Rivolta, R. Scanziani, V. Corino, R. Sassi, Cancellation of Ventricular Activity in Endocavitary Recordings during Atrial Fibrillation by Particle Swarm Optimization, in Computing in Cardiology, Hangzhou (China) September 18-21, 2011, vol. 38, 4 pages. ISSN: 0276-6574. [In press]. [Abstact::PDF]
[25] R. Sassi, L.T. Mainardi, S. Cerutti, Amplitude of Dominant T-Wave Alternans assessment on ECGs obtained from a biophysical model, Engineering in Medicine and Biology Society,EMBC, 2011 Annual International Conference of the IEEE, pp.5872-5875, Boston Aug. 30 2011-Sept. 3 2011 [PDF::DOI]
[24] R. Sassi and L. T. Mainardi, Refined Estimate of the Dominant T-Wave, in Computers in Cardiology, Belfast (UK) September 26-29, 2010, vol. 37, pp. 845-848. ISSN: 0276-6574. [Abstact::PDF]
[23] L. T. Mainardi and R. Sassi, Analysis of T Wave Alternans Using the Dominant T-wave, in International Congress on Electrocardiology (ICE), Lund (Sweden) June 3–5, 2010. The short paper was published in the Journal of Electrocardiology 44 (2), e6-e6, 2011 [PDF::DOI]
[22] R. Sassi, Characterizing Histograms of Heartbeat Interval Differences with Gaussian Mixture Densities, in Computers in Cardiology, Park City (Utah) September 13-16, 2009, vol. 36, pp. 157-160. ISSN: 0276-6574. [Abstact::PDF]
[21] S. Cimato, M. Gamassi, V. Piuri, R. Sassi, and F. Scotti, A Multi-biometric Verification System for the Privacy Protection of Iris Templates, in Proceedings of the International Workshop on Computational Intelligence in Security for Information Systems CISIS’08 , Genova, Italy, 23-24 October 2008. Advances in Soft Computing, vol. 53, pp. 227-234, 2009 (Springer Berlin, Heidelberg). ISBN: 978-3-540-88180-3. [PDF]
[20] S. Cimato, M. Gamassi, V. Piuri, R. Sassi, F. Scotti, Privacy-Aware Biometrics: Design and Implementation of a Multimodal Verification System, in Annual Computer Security Applications Conference, 2008. ACSAC 2008, Anaheim, California, USA. December 8–12, 2008, pp. 130-139, IEEE Computer Society Press. ISBN: 978-0-7695-3447-3. [PDF]
[19] L. T. Mainardi, M Bertinelli and R. Sassi, Analysis of T-wave alternans using the Ramanujan transform, in Computers in Cardiology, Bologna, Italy, 14-17 September 2008, vol. 35, pp. 605-608. ISSN: 0276-6574. [PDF::DOI]
[18] R. Sassi and L. T. Mainardi, Editing RR series and computation of long-term scaling parameters, in Computers in Cardiology, Bologna, Italy, 14-17 September 2008, vol. 35, pp. 565-568. ISSN: 0276-6574. [PDF::DOI]
[17] A. Azzini, S. Marrara, R. Sassi, and F. Scotti, A Fuzzy Approach to Multimodal Biometric Authentication, in Knowledge-Based Intelligent Information and Engineering Systems, 11th International Conference, KES 2007, XVII Italian Workshop on Neural Networks, Vietri sul Mare, Italy, September 12-14, 2007. Proceedings, Part II. (Bruno Apolloni, Robert J. Howlett, Lakhmi C. Jain, ed.), vol. 4693 of Lecture Notes in Computer Science, pp. 801-808, Springer. ISBN: 978-3-540-74826-7. [PDF]
[16] S. Cimato, M. Gamassi, V. Piuri, R. Sassi, and F. Scotti, A biometric verification system addressing privacy concerns, in Computational Intelligence and Security, 2007 International Conference on, pp. 594-598, IEEE Computer Society Press, Harbin, China, 15-19 December 2007. ISBN: 978-0-7695-2823-6. [PDF]
[15] R. Sassi, V. D. A. Corino, and L. T. Mainardi, Analysis of surface atrial signals using spectral methods for time series with missing data, in Computers in Cardiology, vol. 34, pp. 153-156, Durham (NC), USA, 30 September-3 October 2007. ISSN: 0276-6574. [PDF::DOI]
[14] S. Cimato, M. Gamassi, V. Piuri, D. Sana, R. Sassi, and F. Scotti, Personal identification and verification using multimodal biometric data, in Proceedings of the 2006 IEEE International Conference on Computational Intelligence for Homeland Security and Personal Safety, pp. 41-45, IEEE Computer Society Press, Alexandria (VA) USA, 16-17 October 2006. ISBN: 1-4244-0745-1. [PDF]
[13] V. D. A. Corino, F. Ziglio, F. Lombardi, R. Sassi, and L. T. Mainardi, Detrended fluctuation analysis of atrial signal during adrenergic activation in atrial fibrillation, in Computers in Cardiology, vol. 33, pp. 141-144, Valencia, Spain, 17-20 September 2006. ISSN: 0276-6574. [Abstract::PDF]
[12] D. A. Tironi, R. Sassi, and L. T. Mainardi, Automated QT interval analysis on diagnostic electrocardiograms, in Computers in Cardiology, vol. 33, pp. 353-356, Valencia, Spain, 17-20 September 2006. ISSN: 0276-6574. [Abstract::PDF]
[11] R. Maestri, G. D. Pinna, P. Allegrini, R. Balocchi, A. Casaleggio, G. D'Addio, M. Ferrario, D. Menicucci, A. Porta, R. Sassi, M. G. Signorini, M. T. La Rovere, and S. Cerutti, Linear and non-linear indices of heart rate variability in chronic heart failure: mutual interrelationships and prognostic value, in Computers in Cardiology, vol. 32, pp. 981-984, Lyon, France, 25-28 September 2005. ISSN: 0276-6574. [PDF]
[10] L. T. Mainardi and R. Sassi, Analysis of scaling behaviour of ECG signal during atrial fibrillation, in Computers in Cardiology, vol. 32, pp. 627-630, Lyon, France, 25-28 September 2005. ISSN: 0276-6574. [PDF]
[9] R. Sassi, L. T. Mainardi, P. Maison-Blanche, and S. Cerutti, Estimation of spectral parameters of residual ECG signal during atrial fibrillation using autoregressive models, Folia Cardiologica, vol. 12, supl. C, pp. 108-110, 2005. Congress Proceedings of the The 11th Congress of the International Society for Holter and Noninvasive Electrocardiology The 32nd Congress of the International Society of Electrocardiology 2-4 june 2005, Gdansk, Poland. ISSN: 1507-4145. [PDF]
[8] M. Ferrario, M. G. Signorini, R. Sassi, and S. Cerutti, Multiscale entropy analysis of 24 hours heart rate variability time series, in 12th Mediterranean Conference on Medical and Biological Engineering and Computing IFMBE MEDICON 2004., vol. 6, Ischia, Italy, July 31-August 5 2004. 4 pages (available on CD ROM). ISBN 88-7780-308-8.
[7] L. T. Mainardi, M. Matteucci, and R. Sassi, On predicting the spontaneous termination of atrial fibrillation episodes using linear and nonlinear parameters of ECG signal and RR series, in Computers in Cardiology, vol. 31, pp. 665-668, Chicago, USA, 19-22 September 2004. ISSN: 0276-6574. [PDF]
[6] G. Magenes, M. G. Signorini, and R. Sassi, Automatic diagnosis of fetal heart rate: comparison of different methodological approaches, in 23rd Annual International Conference of the Engineering in Medicine and Biology Society, 2001, vol. 1, pp. 1604-1607, Istanbul, Turkey, 25-28 October 2001. ISBN: 0-7803-7211-5. [PDF]
[5] G. Magenes, M. G. Signorini, R. Sassi, and D. Arduini, Multiparametric analysis of fetal heart rate: comparison of neural and statistical classifiers, in 9th Mediterranean Conference on Medical and Biological Engineering and Computing. IFMBE MEDICON 2001, vol. 1, pp. 360-363, Pula, Croatia, 12-15 June 2001. ISBN 953-184-023-7.
[4] M. G. Signorini, R. Sassi, and S. Cerutti, Working on the noltisalis database: measurement of nonlinear properties in heart rate variability signals, in 23rd Annual International Conference of the Engineering in Medicine and Biology Society, vol. 1, pp. 547-550, Istanbul, Turkey, 25-28 October 2001. ISBN: 0-7803-7211-5. [PDF]
[3] M. G. Signorini, A. D. Angelis, G. Magenes, R. Sassi, D. Arduini, and S. Cerutti, Classification of fetal pathologies through fuzzy inference systems based on a multiparametric analysis of fetal heart rate, in Computers in Cardiology, vol. 27, pp. 435-438, Boston, USA, 24-27 September 2000. ISSN: 0276-6574. [PDF]
[2] M. G. Signorini, M. Calò, R. Sassi, S. Guzzetti, and S. Cerutti, Nonlinear analysis of heart rate variability signal in heart transplanted subjects: bicaval vs standard orthotopic techniques, in Proceedings of the 2000 World Congress in Medical Physics and Biomedical Engineering and of the 22nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (WC2000), Chicago, USA, 23-28 July 2000. (CD-ROM). ISSN: 1094-687X.
[1] M. G. Signorini, R. Sassi, F. Lombardi, and S. Cerutti, Regularity patterns in heart rate variability signal: the approximate entropy approach, in 20th Annual International Conference of the Engineering in Medicine and Biology Society, vol. 1, pp. 306-309, Hong Kong, China, 29 October-1 November 1998. ISBN: 0-7803-5164-9. ISSN: 1094-687X. [PDF]

Others

[5] S. Cimato, M. Gamassi, V. Piuri, D. Sana, R. Sassi, and F. Scotti, Patent number MI2006A000641: Metodo di generazione e di verifica di una informazione di sicurezza ottenuta mediante letture biometriche, 2006. Domanda di brevetto depositata il 31 Marzo 2006. International filing PCT/IT2007/000235. [PDF]
[4] S. Cimato, M. Gamassi, V. Piuri, R. Sassi, and F. Scotti, Privacy issues in biometric identification, 2006. Nigel Llyod ed., Touch Briefings, ISBN:1-905052-96-0. [PDF]
[3] R. V. Craster and R. Sassi, Spectral algorithms for reaction-diffusion equations, 2006. Technical Report, Note del Polo – Ricerca N.99, Università di Milano, Polo di Ricerca di Crema. [Code available]. [PDF]
[2] R. Sassi, Analysis of heart rate variability complexity through fractal and multivariate approaches, 2001. Tesi di Dottorato, Dipartimento di Bioingegneria, Politecnico di Milano. [PDF]
[1] R. Sassi, Nonlinear coupled oscillators in woods hole oceanographic institution technical report, WHOI-2000-07, pp 141-166 (Woods Hole MA, 2000), 2000. 1999 Summer Program in Geophysical Fluid Dynamics, "Stirring and Mixing", Woods Hole MA, 2000. [PDF]