AUDIAS logo Audio, Data Intelligence and Speech
EPS logo UAM logo
Publications

Books

  • G. Zadora, A. Martyna, D. Ramos and C. Aitken, Statistical Analysis in Forensic Science: Evidential Values of Multivariate Physicochemical Data. John Wiley and Sons, January 2014. [Bibtex]
  • D. T. Toledano, A. Ortega-Gimenez, A. Teixeira, J. Gonzalez-Rodriguez, L. A. Hernandez-Gomez, R. San-Segundo-Hernandez and D. Ramos, Advances in Speech and Language Technologies for Iberian Languages. Proceeding of Iberspeech 2012, November 2012. [PDF] [Bibtex] [DOI]

Journal Articles

  • D. Ramos, J. Franco-Pedroso, A. Lozano-Diez and J. Gonzalez-Rodriguez, "Deconstructing Cross-Entropy for Probabilistic Binary Classifiers", Entropy (ISSN 1099-4300), Vol. 20, n. 3, pp. 208, March 2018. [Bibtex] [DOI]
  • A. Martyna, G. Zadora and D. Ramos, "Forensic comparison of pyrograms using score-based likelihood ratios", Journal of Analytical and Applied Pyrolysis, March 2018 (in press). [Bibtex] [DOI]
  • R. Corzo, T. Hoffman, P. Weis, J. Franco-Pedroso, D. Ramos and J. Almirall, "The Use of LA-ICP-MS Databases to Compute Likelihood Ratios for the Forensic Analysis of Glass Evidence", Talanta, Elsevier, 2018 ((In press)). [Bibtex] [DOI]
  • A. Nautsch, D. Meuwly, D. Ramos, J. Lindh and C. Busch, "Making Likelihood Ratios Digestible for Cross-Application Performance Assessment", IEEE Signal Processing Letters, IEEE, Vol. 24, n. 10, pp. 1552-1556, September 2017. [Bibtex] [DOI]
  • D. Meuwly, D. Ramos and R. Haraksim, "A guideline for the validation of likelihood ratio methods used for forensic evidence evaluation", Forensic Science International, Elsevier, Vol. 276, pp. 142-153, July 2017. [Bibtex] [DOI]
  • D. Ramos, R. Haraksim and D. Meuwly, "Likelihood ratio data to report the validation of a forensic fingerprint evaluation method", Data in Brief, Vol. 10, pp. 75-92, February 2017. [Bibtex] [DOI]
  • R. Haraksim, D. Ramos and D. Meuwly, "Validation of likelihood ratio methods for forensic evidence evaluation handling multimodal score distributions", IET, Vol. 6, n. 2, pp. 61-69, September 2016. [Bibtex] [DOI]
  • J. Franco-Pedroso, D. Ramos and J. Gonzalez-Rodriguez, "Gaussian Mixture Models of Between-Source Variation for Likelihood Ratio Computation from Multivariate Data", PLoS ONE, Public Library of Science, Vol. 11, n. 2, pp. 1-25, February 2016. [PDF] [Bibtex] [DOI]
  • J. Lucena-Molina, D. Ramos and J. Gonzalez-Rodriguez, "Performance of likelihood ratios considering bounds on the probability of observing misleading evidence", Law, Probability and Risk, Vol. 14, n. 3, pp. 175–192, September 2015. [Bibtex] [DOI]
  • D. Castán, D. Tavarez, P. Lopez-Otero, J. Franco-Pedroso, H. Delgado, E. Navas, L. Docio-Fernández, D. Ramos, J. Serrano, A. Ortega and E. Lleida, "Albayzín-2014 evaluation: audio segmentation and classification in broadcast news domains", EURASIP Journal on Audio, Speech, and Music Processing, Vol. 2015, n. 1, pp. 1-9, December 2015. [PDF] [Bibtex] [DOI]
  • R. Haraksim, D. Ramos, D. Meuwly and C. E. Berger, "Measuring coherence of computer-assisted likelihood ratio methods", Forensic Science International, Elsevier, Vol. 249, pp. 123-132, April 2015. [Bibtex] [DOI]
  • R. P. Krish, J. Fierrez, D. Ramos, J. Ortega-Garcia and J. Bigun, "Pre-Registration of Latent Fingerprints based on Orientation Field", IET Biometrics, pp. 1-11, January 2015. [PDF] [Bibtex] [DOI]
  • A. Kanagasundaram, D. Dean, S. Sridharan, J. Gonzalez-Dominguez, J. Gonzalez-Rodriguez and D. Ramos, "Improving short utterance i-vector speaker verification using utterance variance modelling and compensation techniques", Speech Communication, Vol. 59, pp. 69-82, February 2014. [Bibtex] [DOI]
  • R. Wang, D. Ramos, R. Veldhuis, J. Fierrez, L. Spreeuwers and H. Xu, "Regional fusion for high-resolution palmprint recognition using spectral minutiae representation", IET Biometrics, Vol. 3, pp. 94-100, June 2014. [PDF] [Bibtex] [DOI]
  • A. Martyna, G. Zadora, I. Stariminova and D. Ramos, "Wine authenticity verification as a forensic problem: An application of likelihood ratio test to label verification", Food Chemistry, Vol. 150, pp. 287-295, 2014. [Bibtex] [DOI]
  • D. Ramos, J. Gonzalez-Rodriguez, G. Zadora and C. Aitken, "Information-Theoretical Assessment of the Performance of Likelihood Ratio Models", Journal of Forensic Sciences, Vol. 58, n. 6, pp. 1503-1518, November 2013. [Bibtex] [DOI]
  • D. Ramos and J. Gonzalez-Rodriguez, "Reliable Support: Measuring Calibration of Likelihood Ratios", Forensic Science International, Vol. 230, pp. 156-169, May 2013. [Bibtex] [DOI]
  • P. Tome, J. Fierrez, R. Vera-Rodriguez and D. Ramos, "Identification using Face Regions: Application and Assessment in Forensic Scenarios", Forensic Science International, n. 233, pp. 75-83, 2013. [PDF] [Bibtex] [DOI]
  • A. Martyna, K. Sjastad, G. Zadora and D. Ramos, "Analysis of lead isotopic ratios of glass objects with the aim of comparing them for forensic purposes", Talanta, Vol. 105, pp. 158-166, 2013. [Bibtex] [DOI]
  • A. Martyna, D. Lucy, G. Zadora, B. M. Trzcinska, D. Ramos and A. Parczewskiac, "The evidential value of microspectrophoto metry measurements made for pen inks", Analytical Methods, Vol. 5, pp. 6788-6795, 2013. [Bibtex] [DOI]
  • C. E. H. Berger and D. Ramos, "Objective paper structure comparison: Assessing comparison algorithms", Forensic Science International, Vol. 222, pp. 360-367, 2012. [Bibtex] [DOI]
  • J. B. Murillo, L. Hernandez, R. Fernandez and D. Ramos, "Improving Automatic Detection of Obstructive Sleep Apnea Through Nonlinear Analysis of Sustained Speech", Cognitive Computation, Springer, Vol. 8, pp. 1-15, 2012. [Bibtex] [DOI]
  • D. Ramos and G. Zadora, "Information-theoretical feature selection using data obtained by Scanning Electron Microscopy coupled with and Energy Dispersive X-ray spectrometer for the classification of glass traces", Analytica Chimica Acta, Vol. 705, n. 1-2, pp. 207-217, 2011. [Bibtex] [DOI]
  • I. Lopez-Moreno, D. Ramos, J. Gonzalez-Dominguez and J. Gonzalez-Rodriguez, "Von Mises–Fisher Models in the Total Variability Subspace for Language Recognition", Signal Processing Letters, IEEE, Vol. 18, n. 12, pp. 705-708, 2011. [Bibtex] [DOI]
  • J. Fierrez, J. Galbally, J. Ortega-Garcia, M. R. Freire, F. Alonso-Fernandez, D. Ramos, D. T. Toledano, J. Gonzalez-Rodriguez, J. A. Siguenza, J. Garrido-Salas, E. Anguiano, G. Gonzalez-de-Rivera, R. Ribalda, M. Faundez-Zanuy, J. A. Ortega, V. Cardeñoso-Payo, A. Viloria, C. E. Vivaracho, Q. I. Moro, J. J. Igarza, J. Sanchez, I. Hernaez, C. Orrite-Uruñuela, F. Martinez-Contreras and J. J. Gracia-Roche, "BiosecurID: A Multimodal Biometric Database", Pattern Analysis and Applications, Vol. 13, n. 2, pp. 235-246, May 2010. [PDF] [Bibtex] [DOI] (The original publication is available at www.springerlink.com)
  • J. Gonzalez-Dominguez, I. Lopez-Moreno, J. Franco-Pedroso, D. Ramos, D. T. Toledano and J. Gonzalez-Rodriguez, "Multilevel and Session Variability Compensated Language Recognition: ATVS-UAM Systems at NIST LRE 2009", IEEE Journal on Selected Topics in Signal Processing, IEEE, Vol. 4, n. 6, pp. 1084-1096, 2010. [Bibtex]
  • F. Alonso-Fernandez, J. Fierrez, D. Ramos and J. Gonzalez-Rodriguez, "Quality-Based Conditional Processing in Multi-Biometrics: application to Sensor Interoperability", IEEE Tansactions on Systems, Man and Cybernetics Part A, Vol. 40, n. 6, pp. 1168-1179, 2010. [Bibtex]
  • G. Zadora and D. Ramos, "Evaluation of glass samples for forensic purposes - An application of likelihood ratios and an information-theoretical approach.", Chemometrics and Intelligent Laboratory Systems (ISSN 0169-7439), Elsevier, Amsterdam, PAYS-BAS, Vol. 102, n. 2, pp. 63-83, 2010. [Bibtex]
  • D. Torre-Toledano, I. Lopez-Moreno, I. Mateos, A. Abejon, D. Ramos and J. Gonzalez-Rodriguez, "Automatic Language Recognition on Spontaneous Speech: The ATVS-UAM System", JAES Journal on Audio Engineering Society, Vol. 10, n. 57, pp. 788-806, October 2009. [Bibtex] [DOI]
  • J. Fierrez, J. Ortega-Garcia, D. Ramos and J. Gonzalez-Rodriguez, "HMM-based on-line signature verification: feature extraction and signature modeling", Pattern Recognition Letters, Vol. 28, n. 16, pp. 2325-2334, December 2007. [PDF] [Bibtex]
  • J. Gonzalez-Rodriguez, P. Rose, D. Ramos, D. T. Toledano and J. Ortega-Garcia, "Emulating DNA: Rigorous Quantification of Evidential Weight in Transparent and Testable Forensic Speaker Recognition", IEEE Transactions on Audio, Speech and Language Processing, Vol. 15, n. 7, pp. 2104-2115, September 2007. [PDF] [Bibtex]
  • J. Gonzalez-Rodriguez, D. Ramos-Castro, D. Torre-Toledano, A. Montero-Asenjo, J. Gonzalez-Dominguez, I. Lopez-Moreno, J. Fierrez-Aguilar, D. Garcia-Romero and J. Ortega-Garcia, "On the use of high-level information for speaker recognition: the ATVS-UAM system at NIST SRE 2005", IEEE Aerospace and Electronic Systems Magazine, Vol. 22, n. 1, pp. 15 - 21, January 2007. [PDF] [Bibtex]
  • D. Ramos-Castro, J. Fierrez-Aguilar, J. Gonzalez-Rodriguez and J. Ortega-Garcia, "Speaker Verification using Speaker- and Test-dependent Fast Score Normalization", Pattern Recognition Letters, Vol. 28, pp. 90-98, January 2007. [PDF] [Bibtex]
  • D. Ramos and J. G. Rodriguez, "Evaluation of Likelihood Ratios based on Information Theory", Problems in Forensic Science, Institute of Forensic Research, Vol. 69, pp. 62-66, 2007. [Bibtex]
  • J. Gonzalez-Rodriguez, A. Drygajlo, D. Ramos-Castro, M. Garcia-Gomar and J. Ortega-Garcia, "Robust Estimation, Interpretation and Assessment of Likelihood Ratios in Forensic Speaker Recognition", Computer Speech and Language, Vol. 20, n. 2, pp. 331-355, April-July 2006. [PDF] [Bibtex]
  • J. Gonzalez-Rodriguez, J. Fierrez-Aguilar, D. Ramos-Castro and J. Ortega-Garcia, "Bayesian analysis of fingerprint, face and signature evidences with automatic biometric systems", Forensic Science International, Vol. 155, n. 2-3, pp. 126-140, December 2005. [PDF] [Bibtex]

Book Chapters

  • D. Ramos, R. P. Krish, J. Fierrez and D. Meuwly, "From Bometric Scores to Forensic Likelihood Ratios", Massimo Tistarelli and Christophe Champod (Eds.), Handbook of Biometrics for Forensic Science, Springer, pp. 305-327, February 2017. [Bibtex] [DOI]
  • J. Franco-Pedroso, J. Gonzalez-Rodriguez, J. Gonzalez-Dominguez and D. Ramos, "Fine-grained Automatic Speaker Recognition Using Cepstral Trajectories in Phone Units ", Cathryn Donohue, Shunichi Ishihara, William Steed (Eds.), Quantitative Approaches to Problems in Linguistics - Studies in Honour of Phil Rose, LINCOM Europa, pp. 185-196, 2012 (ISBN 978-3-86288-384-4). [Bibtex]
  • D. Ramos, J. Gonzalez-Dominguez, D. T. Toledano and J. Gonzalez-Rodriguez, "Speaker Feature", Stan Z. Li (Eds.), Encyclopedia of Biometrics (ISBN 978-0-387-73003-5), Springer, July 2009. [Bibtex]
  • D. T. Toledano, D. Ramos, J. Gonzalez-Dominguez and J. Gonzalez-Rodriguez, "Speaker Analysis", Stan Z. Li (Eds.), Encyclopedia of Biometrics (ISBN 978-0-387-73003-5), Springer, July 2009. [Bibtex]
  • G. Zadora, T. Neocleous and D. Ramos, "Model ilorazu wiarygodności służący do analizy danych fizykochemicznych w przypadku występowania brakujących danych", D. Zuba and A. Parczewski (Eds.), Chemometria w nauce i praktyce, Instytut Ekspertyz Sadowych, Instytut Ekspertyz Sądowych, 2009. [Bibtex]
  • D. Ramos, G. Zadora, J. Gonzalez-Rodriguez and C. G. G. Aitken, "Information-theoretical comparison of likelihood ratio methods of evidence evaluation ", S. Srihari and K. Franke (Eds.), Computational Forensics, Springer Series in Studies in Computational Intelligence, Springer Springer Series in Studies in Computational Intelligence, 2008. [Bibtex]
  • J. Gonzalez-Rodriguez and D. Ramos, "Forensic Automatic Speaker Classification in the Coming Paradigm Shift", Christian Müller (Eds.), Speaker Classification Collection, Volume 1: Fundamentals, Features and Methods., Springer LNCS-4343, 2007. [Bibtex]
  • J. G. Rodríguez, D. R. Castro, D. G. Romero and J. O. García, "Reconocimiento del Locutor", (Eds.), TECNOLOGIAS BIOMETRICAS APLICADAS A LA SEGURIDAD (8478976361), RA-MA, pp. 174-206, 2005. [Bibtex]
  • J. G. Rodríguez, D. R. Castro, J. F. Aguilar and J. O. García, "Biometría forense", (Eds.), TECNOLOGIAS BIOMETRICAS APLICADAS A LA SEGURIDAD (8478976361), RA-MA, pp. 338-369, 2005. [Bibtex]

Refereed Conference Papers

  • P. Wlasyuk, D. Ramos and G. Zadora, "Fully-Bayesian likelihood ratio model – model of choice in case of sparse databases", in Poster contributino to International Conference on Forensic Inference and Statistics (ICFIS), September 2017. [Bibtex]
  • D. Ramos, J. Maroñas-Molano and A. Lozano-Diez, "Bayesian Strategies for Likelihood Ratio Computation in Forensic Voice Comparison with Automatic Systems", in Proc. of Subsidia: Herramientas y Recursos para las Ciencias del Habla, June 2017. [Bibtex]
  • R. Haraksim, D. Meuwly and D. Ramos, "A Validation Framework for Likelihood Ratio Methods used in Forensic Eveidence Evaluation", in Poster at the 7th European Academy of Forensic Sciences Conference (EAFS 2015), September 2015. [Bibtex]
  • R. Krish, J. Fierrez, D. Ramos and N. Exposito, "Rare minutiae features for improved AFIS search", in Presentation at the 7th European Academy of Forensic Sciences Conference (EAFS 2015), September 2015. [Bibtex]
  • D. Ramos, J. Gonzalez-Rodriguez and J. Franco-Pedroso, "The need to assess calibration in likelihood-ratio-based forensic speaker recognition", in Presentation at the 7th European Academy of Forensic Sciences Conference (EAFS 2015), September 2015. [Bibtex]
  • R. P. Krish, J. Fierrez and D. Ramos, "Integrating Rare Minutiae in Generic Fingerprint Matchers for Forensics", in Proc. 7th IEEE Int. Workshop on Information Forensics and Security, WIFS, Rome, Italy, November 2015. [PDF] [Bibtex]
  • J. Franco-Pedroso, E. G. Rincon, D. Ramos and J. Gonzalez-Rodriguez, "ATVS-UAM System Description for the Albayzin 2014 Audio Segmentation Evaluation", in Proceedings of IberSPEECH 2014: "VIII Jornadas en Tecnologías del Habla" and "IV Iberian SLTech Workshop", pp. 247-252, Las Palmas de Gran Canaria, Spain, November 2014. [Bibtex]
  • A. Lozano-Diez, J. Gonzalez-Dominguez, R. Zazo, D. Ramos and J. Gonzalez-Rodriguez, "On the Use of Convolutional Neural Networks in Pairwise Language Recognition", in Proceedings of IberSPEECH 2014, Advances in Speech and Language Technologies for Iberian Languages, Springer LNCS-8854, pp. 79-88, November 2014. [PDF] [Bibtex] [DOI]
  • R. P. Krish, J. Fierrez, D. Ramos, J. Ortega-Garcia and J. Bigun, "Pre-Registration for Improved Latent Fingerprint Identification", in Proc. IAPR/IEEE 22nd Int. Conf. on Pattern Recognition, ICPR, pp. 696-701, Stockholm, SWEDEN, August 2014. [PDF] [Bibtex]
  • R. P. Krish, J. Fierrez, D. Ramos, J. Ortega-Garcia and J. Bigun, "Partial Fingerprint Registration for Forensics using Minutiae-Generated Orientation Fields", in 2nd International Workshop on Biometrics and Forensics, Valletta, Malta, March 2014. [PDF] [Bibtex]
  • A. Kanagasundaram, D. Dean, J. Gonzalez-Dominguez, S. Sridharan, D. Ramos and J. Gonzalez-Rodriguez, "Improving Short Utterance based I-vector Speaker Recogni- tion using Source and Utterance-Duration Normalization Techniques ", in Proceedings of Interspeech 2013, Lyon, France, August 2013. [Bibtex]
  • A. Kanagasundaram, D. Dean, J. Gonzalez-Dominguez, S. Sridharan, D. Ramos and J. Gonzalez-Rodriguez, "Improving the PLDA based Speaker Verification in Limited Microphone Data Conditions", in Proceedings of Interspeech 2013, Lyon, France, August 2013. [Bibtex]
  • R. P. Krish, J. Fierrez, D. Ramos, R. Veldhuis and R. Wang, "Evaluation of AFIS-ranked latent fingerprint matched template", in Proc. 6th Pacific-Aim Symposium on Image and Video Technology, Guanajuato, Mexico, Springer LNCS-8333, pp. 230-241, November 2013. [PDF] [Bibtex]
  • R. Wang, D. Ramos, J. Fierrez and R. P. Krish, "Automatic Region Segmentation for High-Resolution Palmprint Recognition: Towards Forensic Scenarios", in Proc. 47th IEEE International Carnahan Conference on Security Technology (ICCST), Medellin, Colombia, October 2013. [PDF] [Bibtex]
  • R. P. Krish, J. Fierrez, D. Ramos and R. Wang, "On the importance of rare features in AFIS-ranked latent fingerprint matched templates", in Proc. 47th IEEE International Carnahan Conference on Security Technology (ICCST), Medellin, Colombia, October 2013. [PDF] [Bibtex]
  • R. Wang, D. Ramos, J. Fierrez and R. P. Krish, "Towards Regional Fusion for High-Resolution Palmprint Recognition", in Proc. XXVI SIBGRAPI conference on Graphics, Patterns and Images, Arequipa, Peru, August 2013. [PDF] [Bibtex]
  • R. Wang, R. Veldhuis, D. Ramos, L. Spreeuwers, J. Fierrez and H. Xu, "On the use of spectral minutiae in high-resolution palmprint recognition", in International Workshop on Biometrics and Forensics (IWBF), pp. 1-4, 2013. [PDF] [Bibtex] [DOI]
  • J. Gonzalez-Rodriguez, J. Gonzalez-Dominguez, J. Franco-Pedroso and D. Ramos-Castro, "A Linguistically-Motivated Speaker Recognition Front-End Through Session Variability Compensated Cepstral Trajectories In Phone Units", in Procs. of International Conference on Acoustics, Speech and Signal Processing (ICASSP), IEEE Signal Processing Society, pp. 4389-4392, March 2012. [PDF] [Bibtex] [DOI]
  • D. Ramos, "Reliable Support: Mesuring Calibration of Likelihood Ratios", in Proceedings of the 6th Conference of the European Academy of Forensic Sciences (EAFS 2012), August 2012 (KEYNOTE SPEAKER). [Bibtex]
  • R. Wang, D. Ramos and J. Fierrez, "Improving radial triangulation-based forensic palmprint recognition according to point pattern comparison by relaxation", in Proc. Intl. Conf. on Biometrics, ICB, pp. 427-432, 2012. [PDF] [Bibtex] [DOI]
  • J. L. Blanco, L. Hernandez, R. Fernandez and D. Ramos, "Introducing non-linear analysis into sustained speech characterization to improve sleep apnea detection", in Proceedings of NOLISP 2011, November 2011. [Bibtex]
  • D. Ramos, J. Franco-Pedroso and J. Gonzalez-Rodriguez, "Calibration and Weight of the Evidence by Human Listeners: the {ATVS-UAM} Submission to {NIST} Human-Aided Speaker Recognition 2010", in International Conference on Acoustics, Speech and Signal Processing (ICASSP), Prage, Czeck Republic, May 2011. [PDF] [Bibtex]
  • D. Ramos, M. Puertas, J. Fierrez, J. Ortega-Garcia and N. Exposito-Marquez, "Performance Assessment and Calibration of {AFIS} Technology in Forensic Conditions", in International Conference on Forensic Inference and Statistics (ICFIS 2011), Seattle, WA, USA., July 2011 (Invited presentation.). [Bibtex]
  • R. Wang, D. Ramos and J. Fierrez, "Latent-to-full palmprint comparison based on radial triangulation under forensic conditions", in Proc. Intl. Joint Conf. on Biometrics, IJCB, pp. 1-6, October 2011. [PDF] [Bibtex] [DOI]
  • J. Gonzalez-Dominguez, I. Lopez-Moreno, J. Franco-Pedroso, D. Ramos, D. T. Toledano and J. Gonzalez-Rodriguez, "Eficiencia Computacional y Alto Rendimiento en Reconocimiento Automático de Locutor: el Sistema ATVS-UAM en NIST SRE 2010 ", in Actas de las V Jornadas de Reconocimiento Biométrico de Personas, Huesca, Spain, September 2010. [Bibtex]
  • S. Perez-Gomez, D. Ramos, J. Gonzalez-Rodriguez and J. Fierrez, "Modelos de regresión logística a nivel de puntuaciones para incorporar calidad en la verificación de locutor", in Actas de las V Jornadas de Reconocimiento Biométrico de Personas, Huesca, Spain, September 2010. [Bibtex]
  • J. Burgues, J. Fierrez, D. Ramos, M. Puertas and J. Ortega-García, "Detección de muestras inválidas en sistemas basados en geometría de la mano utilizando medidas geométricas ", in Actas de las V Jornadas de Reconocimiento Biométrico de Personas, Huesca, Spain, September 2010. [Bibtex]
  • M. Puertas, D. Ramos, J. Fierrez, J. Ortega-Garcia and N. Exposito, "Identificación Latente Dactilar: Análisis de Rendimiento y Factores de Variabilidad", in Actas del Congreso Español de Informática (CEDI 2010), Valencia, Spain, September 2010. [Bibtex]
  • S. Perez-Gomez, D. Ramos, J. Gonzalez-Dominguez and J. Gonzalez-Rodriguez, "Score-level compensation of extreme speech duration variability in speaker verification", in Proceedings of Interspeech 2010, Makuhari, Japan, September 2010. [Bibtex]
  • G. Zadora and D. Ramos, "Classification of glass traces - an application of empirical cross-entropy approach for evaluation of likelihood ratios models", in Proceedings of XII Chemometrics in Analytical Chemistry Conference 2010, pp. 174, October 2010. [Bibtex]
  • D. Ramos, J. Gonzalez-Dominguez, E. Arevalo and J. Gonzalez-Rodriguez, "High-performance session variability compensation in forensic automatic speaker recognition", in Proceedings of 2nd Pan American Meeting on Acoustics. Journal of the Acoustical Society of America. ISSN 0001-4966., Acoustical Society of America., Vol. 128, pp. 2378, November 2010. [Bibtex]
  • J. Gonzalez-Dominguez, I. Lopez-Moreno, J. Franco-Pedroso, D. Ramos, D. T. Toledano and J. Gonzalez-Rodriguez, "ATVS-UAM NIST SRE 2010 System", in Proceedings of FALA 2010, Vigo, Spain, November 2010. [PDF] [Bibtex]
  • G. Zadora and D. Ramos, "Zastosowanie empirycznej entropii krzyaowej do oceny modeli ilorazu wiarygodnoaci (An application of empirical cross entropy approach for evaluation of likelihood ratio models)", in Proceedings of VIII Polish Conference on Analytical Chemistry (ISBN 978-83-925269-7-1)., pp. 201, Krakow, Poland, July 2010. [Bibtex]
  • G. S. Morrison, P. Rose, C. Zhang, J. Epps, E. Ambikairajah, J. González‑Rodríguez, D. Ramos, G. Edmond and C. Roux, "Making demonstrably valid and reliable forensic voice comparison a practical everyday reality in Australia: database collection protocol", in Proceedings of SST 2010. ISBN 978-0-9581946-3-1., pp. 58, Melbourne, Australia, December 2010. [PDF] [Bibtex]
  • J. Burgues, J. Fierrez, D. Ramos, M. Puertas and J. Ortega-Garcia, "Detecting Invalid Samples in Hand Geometry Verification Through Gemetric Measurements", in Proceedings of International Conference on Pattern Recognition 2010, Istambul, Turkey, August 2010. [PDF] [Bibtex] [DOI]
  • M. Puertas, D. Ramos, J. Fierrez, J. Ortega-Garcia and N. Exposito, "Towards a Better Understanding of the Performance of Latent Fingerprint Recognition in Realistic Forensic Conditions", in Proceedings of the 20th International Conference on Pattern Recognition (ICPR), 2010, pp. 1638 -1641, August 2010. [PDF] [Bibtex] [DOI]
  • D. Ramos and F. Alonso-Fernandez, "A Practical Electronic Instrumentation Course for Engineering Students", in Proceedings of IEEE EDUCON 2010, IEEE, 2010. [Bibtex]
  • G. Zadora and D. Ramos, "Evaluation of evidence value of refractive index - influence of selection of proper database", in Proceedings of the 5th European Academy of Forensic Science Conference (EAFS), Glasgow, Scotland, UK, Spetember 2009. [PDF] [Bibtex]
  • C. Ortego-Resa, I. Lopez-Moreno, D. Ramos and J. Gonzalez-Rodriguez, "Anchor Model Fusion for Emotion Recognition in Speech", in Proceedings of BioID-Multicomm 2009, Springer LNCS-5707, pp. 49-56, September 2009. [Bibtex]
  • J. Burgues, J. Fierrez, D. Ramos and J. Ortega-Garcia, "Feature selection in a hand geometry recognition system", in Proceedings of BioID-Multicomm 2009, Springer LNCS-5707, pp. 325-332, September 2009. [Bibtex]
  • A. d. Castro, D. Ramos and J. Gonzalez-Rodriguez, "Forensic speaker recognition using traditional features comparing automatic and human-in-the-loop formant tracking", in Proceedings of Interspeech 2009, pp. 2343-2346, September 2009. [Bibtex]
  • I. Lopez-Moreno, C. Ortego-Resa, J. Gonzalez-Rodriguez and D. Ramos, "Speaker Dependent Emotion Recognition Using Prosodic Supervectors", in Proceedings of Interspeech 2009, pp. 1971-1974, Brighton, UK, September 2009. [Bibtex]
  • D. Ramos, J. Gonzalez-Rodriguez and J. Lucena-Molina, "Accuracy assessment methods for likelihood-ratio-based evidence evaluation", in Proceedings of the 5th European Academy of Forensic Science Conference (EAFS), September 2009 (Invited contribution.). [Bibtex]
  • I. Mateos, D. Ramos, I. Lopez-Moreno and J. Gonzalez-Rodriguez, "Support Vector Machine Regression for robust speaker verification in mismatching and forensic conditions", in Proceedings of International Conference on Biometrics, Springer LNCS-5558, pp. 484-493, June 2009. [Bibtex]
  • A. Harriero, D. Ramos, J. Gonzalez-Rodriguez and J. Fierrez, "Analysis of the Utility of Classical and Novel Speech Quality Measures for Speaker Verification", in Proceedings of International Conference on Biometrics, Springer LNCS-5558, pp. 434-442, June 2009. [Bibtex]
  • J. Gonzalez-Dominguez, I. Lopez-Moreno, J. Franco-Pedroso, D. Ramos, D. T.Toledano and J. Gonzalez-Rodriguez, "Multilevel and channel compensated language recognition: ATVS system at NIST LRE 2009", in I Iberian SLTech - I Joint SIG-IL/Microsoft Workshop on Speech and Language , Porto Salvo, Portugal, September 2009. [PDF] [Bibtex]
  • J. Burgues, J. Fierrez, D. Ramos and J. Ortega-Garcia, "Comparison of Distance-Based Features for Hand Geometry Authentication ", Springer Berlin Heidelberg LNCS, pp. 325-332, January 2009. [PDF] [Bibtex] [DOI]
  • D. Ramos, "Reconocimiento de Locutores Independiente de Texto. Estado del Arte y Uso en la Valoración de la Evidencia Forense", in Actas de las Jornadas de la Sociedad Española de Acústica Forense (SEAF). INGEFOR 2008., Madrid, España, Octubre 2008. [Bibtex]
  • I. Mateos, D. Ramos, I. Lopez-Moreno and J. Gonzalez-Rodriguez, "Support Vector Regression in NIST SRE 2008 Multichannel Core Task", in Proc. of Red Tematica de las Tecnologias del Habla (RTTH), November 2008. [PDF] [Bibtex]
  • I. Lopez-Moreno, D. Ramos, J. Gonzalez-Rodriguez and D. T. Toledano, "Anchor-model fusion for language recognition", in Proceedings of Interspeech 2008, pp. 727-730, Brisbane, Australia, September 2008. [PDF] [Bibtex]
  • D. Ramos, J. Gonzalez-Rodriguez, J. Gonzalez-Dominguez and J. J. Lucena-Molina, "Addressing database mismatch in forensic speaker recognition with Ahumada III: a public real-case database in Spanish", in Proceedings of Interspeech 2008, pp. 1493-1496, September 2008. [PDF] [Bibtex]
  • D. Ramos, J. Gonzalez-Rodriguez, G. Zadora and C. G. G. Aitken, "Assessing and comparing evidence evaluation methods using information theory", in Proceedings of Royal Statistical Society conference, Nottingham, United Kingdom, September 2008. [PDF] [Bibtex]
  • T. Neocleous, G. Zadora, D. Ramos, C. G. G. Aitken and D. Lucy, "Assessment of a compositional model with zeros for comparison and classification problems in the evaluation of transfer evidence", Lausanne, Switzerland, August 2008. [Bibtex]
  • D. Ramos, J. Gonzalez-Rodriguez and J. Fierrez, "Information-theoretical comparison of evidence evaluation methods for score-based biometric systems", Lausanne, Switzerland, August 2008. [PDF] [Bibtex]
  • G. Zadora, D. Ramos, T. Neocleous and C. G. G. Aitken, "The effects of variability of elemental composition of glass in the accuracy of the evidence evaluation process", Lausanne, Switzerland, August 2008. [Bibtex]
  • D. T. Toledano, D. Hernandez-Lopez, C. Esteve-Elizalde, J. Fierrez, J. Ortega-Garcia, D. Ramos and J. Gonzalez-Rodriguez, "BioSec Multimodal Biometric Database in Text-Dependent Speaker Recognition", in Proceedings of the Sixth International Language Resources and Evaluation (LREC 2008), Marrakech, Morocco, May 2008. [PDF] [Bibtex]
  • F. Alonso-Fernandez, J. Fierrez, D. Ramos and J. Ortega-Garcia, "Dealing with sensor interoperability in multi-biometrics: the UPM experience at the BioSecure Multimodal Evaluation 2007", in Defense and Security Symposium, Biometric Technologies for Human Identification, BTHI, Proc. SPIE, Orlando, USA, March 2008. [PDF] [Bibtex]
  • D. Ramos and J. Gonzalez-Rodriguez, "Cross-Entropy Analysis of the Information in Forensic Speaker Recognition", in Proc. of Odyssey, Stellenbosch, South Africa, January 2008. [PDF] [Bibtex]
  • D. Ramos, J. Gonzalez-Rodriguez, G. Zadora, J. Zieba-Palus and C. G. G. Aitken, "Information-theoretical comparison of likelihood ratio methods of forensic evidence evaluation", in International Workshop in Computational Forensics, IAS 2007, pp. 411-416, Manchester, UK, August 2007. [PDF] [Bibtex]
  • I. Lopez-Moreno, I. Mateos-Garcia, D. Ramos and J. Gonzalez-Rodriguez, "Support Vector Regression for Speaker Verification", in Proc. of Interspeech, pp. 306-309, Antwerp, Belgium, August 2007. [Bibtex]
  • A. Montero-Asenjo, J. Gonzalez-Dominguez, D. Ramos-Castro, I. Lopez-Moreno, D. T. Toledano and J. Gonzalez-Rodriguez, "On the use of high-level information in speaker and language recognition", in Proceedings of the Spanish Network of Speech Technologies Workshop (ISBN 84-96214-82-6), pp. 15-18, Zaragoza, España, November 2006. [Bibtex]
  • D. Ramos-Castro and J. Gonzalez-Rodriguez, "A Transparent and Testable Two-stage Approach for Forensic Speaker Recognition through Likelihood Ratio Calibration", in 4th European Academy of Forensic Science Conference, EAFS, Helsinki, Finland, June 2006. [Bibtex]
  • D. Ramos-Castro, J. Gonzalez-Rodriguez and J. Ortega-Garcia, "Likelihood ratio calibration in a transparent and testable forensic speaker recognition framework", in Proc. of IEEE Odyssey 2006, the Speaker and Language Recognition Workshop, San Juan, Puerto Rico, June 2006. [Bibtex]
  • D. Ramos-Castro, J. Gonzalez-Rodriguez, A. Montero-Asenjo and J. Ortega-Garcia, "Suspect-adapted MAP estimation of within-source distributions in generative likelihood ratio estimation", in Proc. of IEEE Odyssey 2006, the Speaker and Language Recognition Workshop, San Juan, Puerto Rico, June 2006. [Bibtex]
  • D. Ramos-Castro, J. Gonzalez-Rodriguez and J. Ortega-Garcia, "Reconocimiento de Locutor Multinivel y Aplicaciones Forenses. El Sistema ATVS en NIST SRE 2005", in Actas del III Congreso de la Sociedad Española de Acústica Forense, SEAF 2005., Santiago de Compostela, España, November 2005. [Bibtex]
  • D. Ramos-Castro, J. Gonzalez-Rodriguez, C. Champod, J. Fierrez-Aguilar and J. Ortega-Garcia, "Between-sources modelling for likelihood ratio computation in forensic biometric recognition", in Proc. 5th IAPR Intl. Conf. on Audio- and Video-based Biometric Person Authentication, AVBPA, Springer LNCS-3546, pp. 1080-1089, New York, USA, July 2005. [PDF] [Bibtex]
  • D. Ramos-Castro, D. Garcia-Romero, I. Lopez-Moreno and J. Gonzalez-Rodriguez, "Speaker Verification Using Fast Adaptive TNorm Based on Kullback-Leibler Divergence", in Proc. of the 3rd COST 275 Workshop, COST-275, Hertfordshire, UK, 2005. [Bibtex]
  • J. Gonzalez-Rodriguez, D. Ramos-Castro, M. Garcia-Gomar and J. Ortega-Garcia, "On Robust Estimation of Likelihood Ratios: The ATVS-UPM System at 2003 NFI/TNO Forensic Evaluation", in Proc. Odyssey 2004, the ISCA Speaker and Language Recognition Workshop, Toledo (Spain), pp. 83-90, June 2004. [PDF] [Bibtex]
  • J. Gonzalez-Rodriguez, D. Garcia-Romero, M. Garcia-Gomar, D. Ramos-Castro and J. Ortega-Garcia, "Robust likelihood ratio estimation in Bayesian forensic speaker recognition", in Proc. of 8th European Conference on Speech Communication and Technology, EuroSpeech-03, Geneva (Switzerland), September 2003. [PDF] [Bibtex]
  • J. Gonzalez-Rodriguez, D. Ramos-Castro, J. Fierrez-Aguilar and J. Ortega-Garcia, "Análisis Forense de voces dubitadas en la metodología Bayesiana", in Actas del II Congreso de la Sociedad Española de Acústica Forense, SEAF 2003. ISBN 84-86108-32-2., pp. 13-21, Barcelona, Spain, April 2003. [Bibtex]

Ph.D. Theses

  • D. Ramos, Forensic Evaluation of the Evidence Using Automatic Speaker Recognition Systems, Universidad Autonoma de Madrid, November 2007. [PDF] [Bibtex]

IEE/IEEE Copyright Notice: This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.

Elsevier Copyright Notice: The author may retain a preprint version of the article on a public electronic server such as the World Wide Web. Elsevier Science does not require that authors remove from publicly accessible servers versions of their paper that differ from the version as published by Elsevier Science.

Springer-Verlag Copyright Notice: The Author may publish his/her contribution on his/her personal Web page provided that he/she creates a link to the volume of LNCS at the Springer-Verlag server or to the LNCS series Homepage and that together with this electronic version it is clearly pointed out that the copyright for this contribution is held by Springer.

SPIE Copyright Notice: The paper/s is/are made available as an electronic reprint (preprint) with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Springer-Verlag London Limited: An author may self-archive an author-created version of his/her article on his/her own website. He/she may also deposit this version on his/her institution's and funder's (funder designated) repository at the funder's request or as a result of a legal obligation, including his/her final version, provided it is not made publicly available until after 12 months of official publication. He/she may not use the publisher's PDF version which is posted on www.springerlink.com for the purpose of self-archiving or deposit. Furthermore, the author may only post his/her version provided acknowledgement is given to the original source of publication and a link is inserted to the published article on Springer's website. The link must be accompanied by the following text: "The original publication is available at www.springerlink.com".