Publications

You can also find my publications on my Google Scholar profile.

Books

• C. Rathgeb, R. Tolosana, R. Vera-Rodriguez and C. Busch. Handbook of Digital Face Manipulation and Detection: From DeepFakes to Morphing Attacks. Advances in Computer Vision and Pattern Recognition, Springer, 2022.

Book Chapters

• C. Gonzalez-Garcia, R. Tolosana, R. Vera-Rodriguez, J. Fierrez, J. Ortega-Garcia. Introduction to Presentation Attacks in Signature Biometrics and Recent Advances. S. Marcel, J. Fierrez and N. Evans (Eds.), Handbook of Biometric Anti-Spoofing (3rd Edition), Springer, 2023.

• R. Tolosana, C. Rathgeb, R. Vera-Rodriguez, C. Busch, L. Verdoliva, S. Lyu, H. H. Nguyen, J. Yamagishi, I. Echizen, P. Rot, K. Grm, V. Struc, A. Dantcheva, Z. Akhtar, S. Romero-Tapiador, J. Fierrez, A. Morales, J. Ortega-Garcia, E. Kindt, C. Jasserand, T. Kalvet and M. Tiits. Future Trends in Digital Face Manipulation and Detection. Christian Rathgeb, Ruben Tolosana, Ruben Vera-Rodriguez and Christoph Busch (Eds.), Handbook of Digital Face Manipulation and Detection: From DeepFakes to Morphing Attacks, Springer, 2022.

• J. Hernandez-Ortega, R. Tolosana, J. Fierrez and A. Morales. DeepFakes Detection based on Heart Rate Estimation: Single- and Multi-Frame. Christian Rathgeb, Ruben Tolosana, Ruben Vera-Rodriguez and Christoph Busch (Eds.), Handbook of Digital Face Manipulation and Detection: From DeepFakes to Morphing Attacks, Springer, 2022.

• R. Tolosana, R. Vera-Rodriguez, J. Fierrez, A. Morales and J. Ortega-Garcia. An Introduction to Digital Face Manipulation. Christian Rathgeb, Ruben Tolosana, Ruben Vera-Rodriguez and Christoph Busch (Eds.), Handbook of Digital Face Manipulation and Detection: From DeepFakes to Morphing Attacks, Springer, 2022.

• J. C. Neves, R. Tolosana, R. Vera-Rodriguez, V. Lopes, H. Proenca and J. Fierrez. GAN Fingerprints in Face Image Synthesis. Husrev Taha Sencar, Luisa Verdoliva and Nasir Memon (Eds.), Multimedia Forensics, Springer, 2022.

• M. Gomez-Barrero, R. Tolosana, J. Kolberg and C. Busch. Multi-Spectral Short-Wave Infrared Sensors and Convolutional Neural Networks for Biometric Presentation Attack Detection. Gaurav Jaswal and Vivek Kanhangad and Raghavendra Ramachandra (Eds.), AI and Deep Learning in Biometric Security: Trends, Potential, and Challenges, CRC Press, 2020.

• R. Vera-Rodriguez, R. Tolosana, J. Hernandez-Ortega, A. Acien, A. Morales, J. Fierrez and J. Ortega-Garcia. Modeling the Complexity of Signature and Touch-Screen Biometrics using the Lognormality Principle. Rejean Plamondon, Angelo Marcelli and Miguel A. Ferrer (Eds.), The Lognormality Principle and its Applications, World Scientific, 2020.

• R. Tolosana, R. Vera-Rodriguez, J. Fierrez and J. Ortega-Garcia. Presentation Attacks in Signature Biometrics: Types and Introduction to Attack Detection. S. Marcel, M.S. Nixon, J. Fierrez and N. Evans (Eds.), Handbook of Biometric Anti-Spoofing (2nd Edition), Springer, 2018.

Journal Articles

• P. Melzi, R. Tolosana, R. Vera-Rodriguez, M. Kim, C. Rathgeb, X. Liu, I. DeAndres-Tame, A. Morales, J. Fierrez, J. Ortega-Garcia, W. Zhao, X. Zhu, Z. Yan, X.Y. Zhang, J. Wu, Z. Lei, S. Tripathi, M. Kothari, M.H. Zama, D. Deb, B. Biesseck, P. Vidal, R. Granada, G. Fickel, G. Führ, D. Menotti, A. Unnervik, A. George, C. Ecabert, H. Otroshi Shahreza, P. Rahimi, S. Marcel, I. Sarridis, C. Koutlis, G. Baltsou, S. Papadopoulos, C. Diou, N. Di Domenico, G. Borghi, L. Pellegrini, E. Mas-Candela, A. Sanchez-Perez, A. Atzori, F. Boutros, N. Damer, G. Fenu, M. Marras. FRCSyn-onGoing: Benchmarking and Comprehensive Evaluation of Real and Synthetic Data to Improve Face Recognition Systems. Information Fusion, 2024.

• S. Romero-Tapiador, R. Tolosana, A. Morales, J. Fierrez, R. Vera-Rodriguez, I. Espinosa-Salinas, G. Freixer, E. Carrillo de Santa Pau, A. Ramírez de Molina, J. Ortega-Garcia. Leveraging Automatic Personalised Nutrition: Food Image Recognition Benchmark and Dataset based on Nutrition Taxonomy. Multimedia Tools and Applications, 2024.

• J.M. Rodriguez-Albala, A. Peña, P. Melzi, A. Morales, R. Tolosana, J. Fierrez, R. Vera-Rodriguez, J. Ortega-Garcia. Spatio-Temporal Trajectory Data Modeling for Fishing Gear Classification. Pattern Analysis and Applications, 2024.

• J.C. Ruiz-Garcia, R. Tolosana, R. Vera-Rodriguez, J. Fierrez and J. Herreros-Rodriguez. ChildCI Framework: Analysis of Motor and Cognitive Development in Children-Computer Interaction for Age Detection. Cognitive Systems Research, 2024.

• I. DeAndres-Tame, R. Tolosana, R. Vera-Rodriguez, A. Morales, J. Fierrez, J. Ortega-Garcia. How Good is ChatGPT at Face Biometrics? A First Look into Recognition, Soft Biometrics, and Explainability. IEEE Access, 2024.

• P. Delgado-Santos, R. Tolosana, R. Guest, P. Lamb, A. Khmelnitsky, C. Coughlan, J. Fierrez. SwipeFormer: Transformers for Mobile Touchscreen Biometrics. Expert Systems with Applications, 2024.

• J.C. Ruiz-Garcia, C. Hojas, R. Tolosana, R. Vera-Rodriguez, A. Morales, J. Fierrez, J. Ortega-Garcia and J. Herreros-Rodriguez. Children Age Group Detection based on Human-Computer Interaction and Time Series Analysis. International Journal on Document Analysis and Recognition, 2024.

• G. Stragapede, R. Vera-Rodriguez, R. Tolosana, A. Morales, N. Damer, J. Fierrez, J. Ortega-Garcia. Keystroke Verification Challenge (KVC): Biometric and Fairness Benchmark Evaluation. IEEE Access, 2023.

• P. Melzi, R. Vera-Rodriguez, R. Tolosana, A. Sanz‑Garcia, A. Cecconi, G. Ortega and L. Jimenez‑Borreguero. Prediction of Atrial Fibrillation from Sinus-Rhythm Electrocardiograms Based on Deep Neural Networks: Analysis of Time Intervals and Longitudinal Study. Innovation and Research in BioMedical Engineering (IRBM), 2023.

• P. Delgado-Santos, R. Tolosana, R. Guest, F. Deravi and R. Vera-Rodriguez. Exploring Transformers for Behavioural Biometrics: A Case Study in Gait Recognition. Pattern Recognition, 2023.

• S. Romero-Tapiador, R. Tolosana, A. Morales, I. Espinosa-Salinas, G. Freixer, J. Fierrez, R. Vera-Rodriguez, E. Carrillo de Santa Pau, A. Ramírez de Molina, J. Ortega-Garcia. AI4Food-NutritionFW: A Novel Framework for the Automatic Synthesis and Analysis of Eating Behaviours. IEEE Access, 2023.

• P. Delgado-Santos, R. Tolosana, R. Guest, R. Vera-Rodriguez and J. Fierrez. M-GaitFormer: Mobile Biometric Gait Verification Using Transformers. Engineering Applications of Artificial Intelligence, 2023.

• S. Romero-Tapiador, B. Lacruz-Pleguezuelos, R. Tolosana, G. Freixer, R. Daza, C.M. Fernández-Díaz, E. Aguilar-Aguilar, J. Fernández-Cabezas, S. Cruz Gil, S. Molina-Arranz, M.C. Crespo, T. Laguna-Lobo, L.J. Marcos-Zambrano, R. Vera-Rodriguez, J. Fierrez, A. Ramírez de Molina, J. Ortega-Garcia, I. Espinosa-Salinas, A. Morales and E. Carrillo de Santa Pau. AI4FoodDB: A Database for Personalized e-Health Nutrition and Lifestyle through Wearable Devices and Artificial Intelligence. Database: The Journal of Biological Databases and Curation, 2023.

• G. Stragapede, P. Delgado-Santos, R. Tolosana, R. Vera-Rodriguez, R. Guest and A. Morales. TypeFormer: Transformers for Mobile Keystroke Biometrics. arXiv preprint arXiv:2212.13075, 2023.

• M. Ghafourian, B. Sumer, R. Vera-Rodriguez, J. Fierrez, R. Tolosana, A. Morales and E. Kindt. Combining Blockchain and Biometrics: A Survey on Technical Aspects and a First Legal Analysis. arXiv preprint arXiv:2302.10883, 2023.

• H. Otroshi Shahreza, P. Melzi, D. Osorio-Roig, C. Rathgeb, C. Busch, S. Marcel, R. Tolosana, R. Vera-Rodriguez. Benchmarking of Cancelable Biometrics for Deep Templates. arXiv preprint arXiv:2302.13286, 2023.

• G. Stragapede, R. Vera-Rodriguez, R. Tolosana and A. Morales. BehavePassDB: Public Database for Mobile Behavioral Biometrics and Benchmark Evaluation. Pattern Recognition. Vol. 123, 109089, 2023.

• P. Melzi, R. Tolosana and R. Vera-Rodriguez. ECG Biometric Recognition: Review, System Proposal, and Benchmark Evaluation. IEEE Access, 2023.

• P. Melzi, C. Rathgeb, R. Tolosana, R. Vera-Rodriguez and C. Busch. An Overview of Privacy-enhancing Technologies in Biometric Recognition. arXiv preprint arXiv:2206.10465, 2022.

• R. Tolosana, S. Romero-Tapiador, R. Vera-Rodriguez, E. Gonzalez-Sosa and J. Fierrez. DeepFakes Detection across Generations: Analysis of Facial Regions, Fusion, and Performance Evaluation. Engineering Applications of Artificial Intelligence, Vol. 110, 104673, 2022.

• P. Delgado-Santos, R. Tolosana, R. Guest, R. Vera-Rodriguez, F. Deravi and A. Morales. GaitPrivacyON: Privacy-Preserving Mobile Gait Biometrics using Unsupervised Learning. Pattern Recognition Letters, Vol. 161, pp. 20-37, 2022.

• R. Tolosana, R. Vera-Rodriguez, C. Gonzalez-Garcia, J. Fierrez, A. Morales, J. Ortega-Garcia, J. C. Ruiz-Garcia, S. Romero-Tapiador, S. Rengifo, M. Caruana, J. Jiang, S. Lai, L. Jin, Y. Zhu, J. Galbally, M. Diaz, M. Ferrer, M. Gomez-Barrero, I. Hodashinsky, K. Sarin, A. Slezkin, M. Bardamova, M. Svetlakov, M. Saleem, C. Szucs, B. Kovari, F. Pulsmeyer, M. Wehbi, D. Zanca, S. Ahmad, S. Mishra and S. J. SVC-onGoing: Signature Verification Competition. Pattern Recognition, Vol. 127, 108609, 2022.

• G. Stragapede, R. Vera-Rodriguez, R. Tolosana, A. Morales, A. Acien and G. L. Lan. Mobile Behavioral Biometrics for Passive Authentication. Pattern Recognition Letters, Vol. 157, pp. 35-41, 2022.

• P. Delgado-Santos, G. Stragapede, R. Tolosana, R. Guest, F. Deravi and R. Vera-Rodriguez. A Survey of Privacy Vulnerabilities of Mobile Device Sensors. ACM Computing Surveys, no. 224, pp. 1-30, 2022.

• R. Tolosana, J. C. Ruiz-Garcia, R. Vera-Rodriguez, J. Herreros-Rodriguez, S. Romero-Tapiador, A. Morales and J. Fierrez. Child-Computer Interaction with Mobile Devices: Recent Works, New Dataset, and Age Detection. IEEE Transactions on Emerging Topics in Computing, pp. 1-13, 2022.

• A. Morales, J. Fierrez, A. Acien, R. Tolosana and I. Serna. SetMargin Loss applied to Deep Keystroke Biometrics with Circle Packing Interpretation. Pattern Recognition, Vol. 122, 108283, 2022.

• P. Melzi, R. Tolosana, A. Cecconi, A. Sanz‑Garcia, G. Ortega, L. Jimenez‑Borreguero and R. Vera-Rodriguez. Analyzing Artificial Intelligence Systems for the Prediction of Atrial Fibrillation from Sinus‑Rhythm ECGs Including Demographics and Feature Visualization. Scientific Reports, Vol. 11, 2021.

• R. Tolosana, R. Vera-Rodriguez, J. Fierrez and J. Ortega-Garcia. DeepSign: Deep On-Line Signature Verification. IEEE Transactions on Biometrics, Behavior, and Identity Science, Vol. 3, pp. 229-239, 2021.

• A. Morales, J. Fierrez, R. Vera-Rodriguez and R. Tolosana. SensitiveNets: Learning Agnostic Representations with Application to Face Images. IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 43, n. 6, pp. 2158-2164, 2021.

• R. Tolosana, R. Vera-Rodriguez, R. Guest, J. Fierrez and J. Ortega-Garcia. Exploiting Complexity in Pen- and Touch-based Signature Biometrics. International Journal on Document Analysis and Recognition, Vol. 23, pp. 129-141, 2020.

• M. Faundez-Zanuy, J. Fierrez, M. A. Ferrer, M. Diaz, R. Tolosana and R. Plamondon. Handwriting Biometrics: Applications and Future Trends in e-Security and e-Health. Cognitive Computation, Vol. 12, pp. 940-953, 2020.

• E. Gonzalez-Sosa, P. Perez, R. Tolosana, R. Kachach and A. Villegas. Enhanced Self-Perception in Mixed Reality: Egocentric Arm Segmentation and Database with Automatic Labelling. IEEE Access, Vol. 8, pp. 146887-146900, 2020.

• O. Delgado-Mohatar, J. Fierrez, R. Tolosana and R. Vera-Rodriguez. Blockchain meets Biometrics: Concepts, Application to Template Protection, and Trends. arXiv preprint arXiv: 2003.09262, 2020.

• R. Tolosana, R. Vera-Rodriguez, J. Fierrez and J. Ortega-Garcia. BioTouchPass2: Touchscreen Password Biometrics Using Time-Aligned Recurrent Neural Networks. IEEE Transactions on Information Forensics and Security, Vol. 5, pp. 2616-2628, 2020.

• R. Tolosana, R. Vera-Rodriguez, J. Fierrez, A. Morales and J. Ortega-Garcia. DeepFakes and Beyond: A Survey of Face Manipulation and Fake Detection. Information Fusion, Vol. 64, pp. 131-148, 2020.

• J. C. Neves, R. Tolosana, R. Vera-Rodriguez, V. Lopes, H. Proenca and J. Fierrez. GANprintR: Improved Fakes and Evaluation of the State of the Art in Face Manipulation Detection. IEEE Journal of Selected Topics in Signal Processing, Vol. 14, pp. 1038-1048, 2020.

• R. Tolosana, R. Vera-Rodriguez, R. Guest, J. Fierrez and J. Ortega-Garcia. Exploiting Complexity in Pen-and Touch-based Signature Biometrics. International Journal on Document Analysis and Recognition, n. 23, pp. 129–141, 2020.

• R. Tolosana, R. Vera-Rodriguez and J. Fierrez. BioTouchPass: Handwritten Passwords for Touchscreen Biometrics. IEEE Transactions on Mobile Computing, Vol. 19, n. 7, pp. 1532-1543, 2020.

• R. Tolosana, M. Gomez-Barrero, C. Busch and J. Ortega-Garcia. Biometric Presentation Attack Detection: Beyond the Visible Spectrum. IEEE Transactions on Information Forensics and Security, Vol. 15, pp. 1261-1275, 2019.

• R. Tolosana, R. Vera-Rodriguez, J. Fierrez and J. Ortega-Garcia. Reducing the Template Aging Effect in On-Line Signature Biometrics. IET Biometrics, Vol. 8, n. 6, pp. 422-430, 2019.

• R. Tolosana, R. Vera-Rodriguez, J. Fierrez and J. Ortega-Garcia. Exploring Recurrent Neural Networks for On-Line Handwritten Signature Biometrics. IEEE Access, Vol. 6, pp. 5128-5138, 2018.

• R. Tolosana, R. Vera-Rodriguez, J. Fierrez, A. Morales and J. Ortega-Garcia. Benchmarking Desktop and Mobile Handwriting across COTS Devices: the e-BioSign Biometric Database. PLOS ONE, Vol. 5, n. 12, 2017.

• A. Morales, J. Fierrez, R. Tolosana, J. Ortega-Garcia, J. Galbally, M. Gomez-Barrero, A. Anjos and S. Marcel. Keystroke Biometrics Ongoing Competition. IEEE Access, Vol. 4, pp. 7736-7746, 2016.

• R. Tolosana, R. Vera-Rodriguez, J. Ortega-Garcia and J. Fierrez. Preprocessing and Feature Selection for Improved Sensor Interoperability in Online Biometric Signature Verification. IEEE Access, Vol. 3, pp. 478-489, 2015.

Conference Papers

• P. Melzi, R. Tolosana, R. Vera-Rodriguez, M. Kim, C. Rathgeb, X. Liu, I. DeAndres-Tame, A. Morales, J. Fierrez, J. Ortega-Garcia, W. Zhao, X. Zhu, Z. Yan, X.Y. Zhang, J. Wu, Z. Lei, S. Tripathi, M. Kothari, M.H. Zama, D. Deb, B. Biesseck, P. Vidal, R. Granada, G. Fickel, G. Führ, D. Menotti, A. Unnervik, A. George, C. Ecabert, H. Otroshi Shahreza, P. Rahimi, S. Marcel, I. Sarridis, C. Koutlis, G. Baltsou, S. Papadopoulos, C. Diou, N. Di Domenico, G. Borghi, L. Pellegrini, E. Mas-Candela, A. Sanchez-Perez, A. Atzori, F. Boutros, N. Damer, G. Fenu, M. Marras. FRCSyn Challenge at WACV 2024: Face Recognition Challenge in the Era of Synthetic Data. in Proc. IEEE/CVF Winter Conference on Applications of Computer Vision Workshops, WACVw, Hawaii, USA, January 2024.

• P. Melzi, C. Rathgeb, R. Tolosana, R. Vera-Rodriguez, A. Morales, D. Lawatsch, F. Domin, M. Schaubert. Synthetic Data for the Mitigation of Demographic Biases in Face Recognition. in Proc. IEEE International Joint Conference on Biometrics, IJCB, Ljubljana, Slovenia, September 2023.

• P. Melzi, C. Rathgeb, R. Tolosana, R. Vera-Rodriguez, D. Lawatsch, F. Domin, M. Schaubert. GANDiffFace: Controllable Generation of Synthetic Datasets for Face Recognition with Realistic Variations. in Proc. IEEE/CVF International Conference on Computer Vision Workshops, ICCVw, Paris, France, October 2023. Best Paper Award

• P. Melzi, R. Tolosana, R. Vera-Rodriguez, P. Delgado-Santos, G. Stragapede, J. Fierrez, J. Ortega-Garcia. Exploring Transformers for On-Line Handwritten Signature Verification. in Proc. ACM International Conference on Mobile Human-Computer Interaction Workshop, MobileHCIw, Athens, Greece, September 2023.

• J.C. Ruiz-Garcia, R. Tolosana, R. Vera-Rodriguez, C. Moro. CareFall: Automatic Fall Detection through Wearable Devices and AI Methods. in Proc. ACM International Conference on Mobile Human-Computer Interaction Workshop, MobileHCIw, Athens, Greece, September 2023.

• L.F. Gomez, J. Fierrez, A. Morales, M. Ghafourian, R. Tolosana, I. Solano, A. Garcia, F. Zamora-Martinez. PAD-Phys: Exploiting Physiology for Presentation Attack Detection in Face Biometrics. in Proc. IEEE 47th Annual Computers, Software, and Applications Conference, COMPSAC, Torino, Italy, July 2023.

• D. DeAlcala, A. Morales, R. Tolosana, A. Acien, J. Fierrez, S. Hernández, M.A. Ferrer and M. Diaz. BeCAPTCHA-Type: Biometric Keystroke Data Generation for Improved Bot Detection. in Proc. IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops, CVPRw, Vancouver, Canada, June 2023.

• P. Melzi, J.M. Rodriguez-Albala, A. Morales, R. Tolosana, J. Fierrez, R. Vera-Rodriguez. Fishing Gear Classification from Vessel Trajectories and Velocity Profiles: Database and Benchmark. in Proc. Iberian Conference on Pattern Recognition and Image Analysis, IbPRIA, Alicante, Spain, June 2023.

• R. Daza, L.F. Gomez, A. Morales, J. Fierrez, R. Tolosana, R. Cobos and J. Ortega-Garcia. MATT: Multimodal Attention Level Estimation for e-learning Platforms. in Proc. AAAI Workshop on Artificial Intelligence for Education, AI4EDU, Washington DC, USA, February 2023.

• R. Daza, A. Morales, R. Tolosana, L.F. Gomez, J. Fierrez and J. Ortega-Garcia. edBB-Demo: Biometrics and Behavior Analysis for Online Educational Platforms. in Proc. AAAI Conference on Artificial Intelligence, AAAI, Washington DC, USA, February 2023.

• P. Melzi, H.O. Shahreza, C. Rathgeb, R. Tolosana, R. Vera-Rodriguez, J. Fierrez, S. Marcel and C. Busch. Multi-IVE: Privacy Enhancement of Multiple Soft-Biometrics in Face Embeddings. in Proc. IEEE/CVF Winter Conference on Applications of Computer Vision Workshops, WACVw, Waikoloa, Hawaii, USA, January 2023.

• G. Stragapede, P. Delgado-Santos, R. Tolosana, R. Vera-Rodriguez, R. Guest and A. Morales. Mobile Keystroke Biometrics Using Transformers. in Proc. IEEE Intl. Conf. on Automatic Face and Gesture Recognition, FG, Waikoloa, Hawaii, USA, January 2023.

• G. Stragapede, R. Vera-Rodriguez, R. Tolosana, A. Morales, J. Fierrez, J. Ortega-Garcia, S. Rasnayaka, S. Seneviratne, V. Dissanayake, J. Liebers, A. Islam, S.B. Belhaouari, S. Ahmad, S. Jabin. IJCB 2022 Mobile Behavioral Biometrics Competition (MobileB2C). in Proc. IEEE International Joint Conference on Biometrics, IJCB, October 2022.

• R. Daza, D. DeAlcala, A. Morales, R. Tolosana, R. Cobos and J. Fierrez. ALEBk: Feasibility Study of Attention Level Estimation via Blink Detection applied to e-Learning. in Proc. AAAI Workshop on Artificial Intelligence for Education, AI4EDU, February 2022.

• G. Stragapede, R. Vera-Rodriguez, R. Tolosana, A. Morales, A. Acien and G. L. Lan. Mobile Passive Authentication through Touchscreen and Background Sensor Data. in Proc. IEEE International Workshop on Biometrics and Forensics, IWBF, April 2022.

• R. Tolosana, R. Vera-Rodriguez, C. Gonzalez-Garcia, J. Fierrez, S. Rengifo, A. Morales, J. Ortega-Garcia, J. C. Ruiz-Garcia, S. Romero-Tapiador, J. Jiang, S. Lai, L. Jin, Y. Zhu, J. Galbally, M. Diaz, M. Ferrer, M. Gomez-Barrero, I. Hodashinsky, K. Sarin, A. Slezkin, M. Bardamova, M. Svetlakov, M. Saleem, C. Szucs, B. Kovari, F. Pulsmeyer, M. Wehbi, D. Zanca, S. Ahmad, S. Mishra and S. Jabin. ICDAR 2021 Competition on On-Line Signature Verification. in Proc. International Conference on Document Analysis and Recogniton, ICDAR, Lausanne, Switzerland, September 2021.

• R. Tolosana, P. Delgado-Santos, A. Perez-Uribe, R. Vera-Rodriguez, J. Fierrez and A. Morales. DeepWriteSYN: On-Line Handwriting Synthesis via Deep Short-Term Representations. in Proc. 35th AAAI Conference on Artificial Intelligence, AAAI, Vancouver, Canada, February 2021.

• J. Hernandez-Ortega, R. Tolosana, J. Fierrez and A. Morales. DeepFakesON-Phys: DeepFakes Detection based on Heart Rate Estimation. in Proc. 35th AAAI Conference on Artificial Intelligence Workshops, AAAIw, Vancouver, Canada, February 2021.

• M. Caruana, R. Vera-Rodriguez and R. Tolosana. Analysing and Exploiting Complexity Information in On-Line Signature Verification. in Proc. International Conference on Pattern Recognition Workshops, ICPRw, Milan, Italy, 2021.

• R. Tolosana, S. Romero-Tapiador, J. Fierrez and R. Vera-Rodriguez. DeepFakes Evolution: Analysis of Facial Regions and Fake Detection Performance. in Proc. International Conference on Pattern Recognition Workshops, ICPRw, Milan, Italy, 2021.

• A. Morales, A. Acien, J. Fierrez, J. V. Monaco, R. Tolosana, R. Vera-Rodriguez and J. Ortega-Garcia. Keystroke Biometrics in Response to Fake News Propagation in a Global Pandemic. in Proc. IEEE Intl. Workshop on Secure Digital Identity Management, SDIM, July 2020.

• R. Daza, A. Morales, J. Fierrez and R. Tolosana. mEBAL: A Multimodal Database for Eye Blink Detection and Attention Level Estimation. in Proc. 23rd ACM International Conference on Multimodal Interaction, ICMI, Utrecht, Netherlands, October 2020.

• J. Hernandez-Ortega, R. Daza, A. Morales, J. Fierrez and R. Tolosana. Heart Rate Estimation from Face Videos for Student Assessment: Experiments on edBB. in Proc. IEEE Computer Software and Applications Conference, COMPSAC, Madrid, Spain, July 2020.

• O. Delgado-Mohatar, R. Tolosana, J. Fierrez and A. Morales. Blockchain in the Internet of Things: Architectures and Implementation. in Proc. IEEE Computer Software and Applications Conference, COMPSAC, Madrid, Spain, July 2020.

• A. Acien, A. Morales, R. Vera-Rodriguez, J. Fierrez and R. Tolosana. MultiLock: Mobile Active Authentication based on Multiple Biometric and Behavioral Patterns. in Proc. ACM Intl. Conf. on Multimedia, Workshop on Multimodal Understanding and Learning for Embodied Applications, MULEA, Nice, France, October 2019.

• R. Tolosana, R. Vera-Rodriguez, J. Fierrez and A. Morales. BioTouchPass Demo: Handwritten Passwords for Touchscreen Biometrics. in Proc. ACM Multimedia, ACMM, Nice, France, October 2019.

• R. Vera-Rodriguez, R. Tolosana, M. Caruana, G. Manzano, C. Gonzalez-Garcia, J. Fierrez and J. Ortega-Garcia. DeepSignCX: Signature Complexity Detection using Recurrent Neural Networks. in Proc. 15th International Conference on Document Analysis and Recognition, ICDAR, Sydney, Australia, September 2019.

• R. Tolosana, R. Vera-Rodriguez, J. Fierrez, A. Morales and J. Ortega-Garcia. Do You Need More Data? The DeepSignDB On-Line Handwritten Signature Biometric Database. in Proc. 15th International Conference on Document Analysis and Recognition, ICDAR, Sydney, Australia, September 2019.

• O. Delgado-Mohatar, J. Fierrez, R. Tolosana and R. Vera-Rodriguez. Biometric Template Storage with Blockchain: A First Look into Cost and Performance Tradeoffs. in Proc. IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops, CVPRw, Long Beach, CA, USA, June 2019.

• R. Tolosana, J. Gismero-Trujillo, R. Vera-Rodriguez, J. Fierrez and J. Ortega-Garcia. MobileTouchDB: Mobile Touch Character Database in the Wild and Biometric Benchmark. in Proc. IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops, CVPRw, Long Beach, CA, USA, June 2019.

• O. Delgado-Mohatar, J. Fierrez, R. Tolosana and R. Vera-Rodriguez. Blockchain and Biometrics: A First Look into Opportunities and Challenges. in Proc. International Congress on Blockchain and Applications, Avila, Spain, June 2019.

• R. Vera-Rodriguez, R. Tolosana, J. Hernandez-Ortega, A. Morales, J. Fierrez and J. Ortega-Garcia. Modeling the Complexity of Biomechanical Tasks using the Lognormality Principle: Applications to Signature Recognition and Touch-screen Children Detection. in Proc. IAPR Intl. Conf. on Pattern Recognition and Artificial Intelligence, ICPRAI, May 2018.

• R. Tolosana, R. Vera-Rodriguez, J. Fierrez and J. Ortega-Garcia. Incorporating Touch Biometrics to Mobile One-Time Passwords: Exploration of Digits. in Proc. IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops, CVPRw, Salt Lake City, Utah, USA, June 2018.

• R. Tolosana, M. Gomez-Barrero, J. Kolberg, A. Morales, C. Busch and J. Ortega-Garcia. Towards Fingerprint Presentation Attack Detection Based on Convolutional Neural Networks and Short Wave Infrared Imaging. in Proc. 17th International Conference of the Biometrics Special Interest Group, BIOSIG, September 2018.

• A. Morales, F. M. Costela, R. Tolosana and R. L. Woods. Saccade Landing Point Prediction: A Novel Approach based on Recurrent Neural Networks. in Proc. 2018 International Conference on Machine Learning Technologies, ICMLT 2018, Jinan, China, May 2018.

• R. Tolosana, R. Vera-Rodriguez, J. Fierrez and J. Ortega-Garcia. Biometric Signature Verification Using Recurrent Neural Networks. in Proc. 14th IAPR Int. Conference on Document Analysis and Recognition, ICDAR, Kyoto, Japan, November 2017.

• R. Tolosana, R. Vera-Rodriguez, R. Guest, J. Fierrez and J. Ortega-Garcia. Complexity-based Biometric Signature Verification. in Proc. 14th IAPR Int. Conference on Document Analysis and Recognition, ICDAR, Kyoto, Japan, November 2017.

• R. Tolosana, R. Vera-Rodriguez, J. Ortega-Garcia and J. Fierrez. Assessment of Using the Finger in On-Line Handwritten Signature Verification Systems. in Proc. 18th Int. Graphonomics Society Conference, IGS, Gaeta, Italy, June 2017.

• D. Morocho, A. Morales, J. Fierrez and R. Tolosana. Signature Recognition: Establishing Human Baseline Performance via Crowdsourcing. in Proc. 4th Int. Workshop on Biometrics and Forensics, IWBF, Limassol, Cyprus, March 2016.

• R. Vera-Rodriguez, J. Fierrez, A. Morales, R. Tolosana and J. Ortega-Garcia. Automatic Student Authentication Using Dynamic Signature Recognition. in Proc. Congreso Internacional sobre Aprendizaje, Innovacion y Competitividad, CINAIC, Octubre 2015.

• R. Tolosana, R. Vera-Rodriguez, J. Fierrez and J. Ortega-Garcia. Feature-Based Dynamic Signature Verification under Forensic Scenarios. in Proc. 3rd International Workshop on Biometrics and Forensics, IWBF, Gjøvik, Norway, March 2015.

• R. Vera-Rodriguez, R. Tolosana, J. Ortega-Garcia and J. Fierrez. e-BioSign: Stylus- and Finger-Input Multi-Device Database for Dynamic Signature Recognition. in Proc. 3rd International Workshop on Biometrics and Forensics, IWBF, Gjøvik, Norway, March 2015.

• R. Tolosana, R. Vera-Rodriguez, J. Ortega-Garcia and J. Fierrez. Update Strategies for HMM-Based Dynamic Signature Biometric Systems. in Proc. 7th IEEE Int. Workshop on Information Forensics and Security, WIFS, Rome, Italy, November 2015.

• R. Tolosana, R. Vera-Rodriguez, J. Ortega-Garcia and J. Fierrez. Increasing the Robustness of Biometric Templates for Dynamic Signature Biometric Systems. in Proc. 49th Annual Int. Carnahan Conf. on Security Technology, Taipei, Taiwan, September 2015.

• R. Vera-Rodriguez, J. Fierrez, J. Ortega-Garcia, A. Acien and R. Tolosana. e-BioSign Tool: Towards Scientific Assessment of Dynamic Signatures under Forensic Conditions. in Proc. IEEE Seventh International Conference on Biometrics: Theory, Applications and Systems, BTAS, Arlington, Virginia, USA, September 2015.

• R. Tolosana, R. Vera-Rodriguez, J. Ortega-Garcia and J. Fierrez. Optimal Feature Selection and Inter-Operability Compensation for On-Line Biometric Signature Authentication. in Proc. IEEE/IAPR Int. Conf. on Biometrics, ICB, Phuket, Thailand, May 2015.