no code implementations • 27 Jul 2022 • Daniel DeAlcala, Aythami Morales, Ruben Tolosana, Alejandro Acien, Julian Fierrez, Santiago Hernandez, Miguel A. Ferrer, Moises Diaz
Different bot detectors are considered based on several supervised classifiers (Support Vector Machine, Random Forest, Gaussian Naive Bayes and a Long Short-Term Memory network) and a learning framework including human and synthetic samples.
no code implementations • 14 Mar 2022 • Giuseppe Stragapede, Ruben Vera-Rodriguez, Ruben Tolosana, Aythami Morales, Alejandro Acien, Gael Le Lan
Current mobile user authentication systems based on PIN codes, fingerprint, and face recognition have several shortcomings.
no code implementations • 2 Sep 2021 • Aythami Morales, Julian Fierrez, Alejandro Acien, Ruben Tolosana, Ignacio Serna
This work presents a new deep learning approach for keystroke biometrics based on a novel Distance Metric Learning method (DML).
1 code implementation • 14 Jan 2021 • Alejandro Acien, Aythami Morales, John V. Monaco, Ruben Vera-Rodriguez, Julian Fierrez
We study the performance of Long Short-Term Memory networks for keystroke biometric authentication at large scale in free-text scenarios.
no code implementations • 15 May 2020 • Aythami Morales, Alejandro Acien, Julian Fierrez, John V. Monaco, Ruben Tolosana, Ruben Vera-Rodriguez, Javier Ortega-Garcia
Behavioral biometrics can be powerful tools in this fight.
2 code implementations • 2 May 2020 • Alejandro Acien, Aythami Morales, Julian Fierrez, Ruben Vera-Rodriguez
We propose two new mouse trajectory synthesis methods for generating realistic data: a) a function-based method based on heuristic functions, and b) a data-driven method based on Generative Adversarial Networks (GANs) in which a Generator synthesizes human-like trajectories from a Gaussian noise input.
no code implementations • 7 Apr 2020 • Alejandro Acien, John V. Monaco, Aythami Morales, Ruben Vera-Rodriguez, Julian Fierrez
We study the suitability of keystroke dynamics to authenticate 100K users typing free-text.
no code implementations • 29 Jan 2019 • Alejandro Acien, Aythami Morales, Ruben Vera-Rodriguez, Julian Fierrez
In this paper we evaluate mobile active authentication based on an ensemble of biometrics and behavior-based profiling signals.