IEEE Transactions on Pattern Analysis and Machine Intelligence
Bayesian Clustering by Dynamics
Machine Learning - Special issue: Unsupervised learning
Fractal modeling of human isochronous serial interval production
Biological Cybernetics
Typing Patterns: A Key to User Identification
IEEE Security and Privacy
A Generic Scheme for Color Image Retrieval Based on the Multivariate Wald-Wolfowitz Test
IEEE Transactions on Knowledge and Data Engineering
Neural Networks - 2004 Special issue: New developments in self-organizing systems
Connecting Cortical and Behavioral Dynamics: Bimanual Coordination
Neural Computation
Unfolding preprocessing for meaningful time series clustering
Neural Networks - 2006 Special issue: Advances in self-organizing maps--WSOM'05
Graph Embedding and Extensions: A General Framework for Dimensionality Reduction
IEEE Transactions on Pattern Analysis and Machine Intelligence
Anytime Classification Using the Nearest Neighbor Algorithm with Applications to Stream Mining
ICDM '06 Proceedings of the Sixth International Conference on Data Mining
A clustering procedure for exploratory mining of vector time series
Pattern Recognition
Biometrics from Brain Electrical Activity: A Machine Learning Approach
IEEE Transactions on Pattern Analysis and Machine Intelligence
Person Authentication Using Brainwaves (EEG) and Maximum A Posteriori Model Adaptation
IEEE Transactions on Pattern Analysis and Machine Intelligence
Anytime similarity measures for faster alignment
Computer Vision and Image Understanding
eigenPulse: Robust human identification from cardiovascular function
Pattern Recognition
Pattern Recognition
Biometrics: a tool for information security
IEEE Transactions on Information Forensics and Security
Learning Discriminant Person-Specific Facial Models Using Expandable Graphs
IEEE Transactions on Information Forensics and Security
Biometric Identification Based on Frequency Analysis of Cardiac Sounds
IEEE Transactions on Information Forensics and Security - Part 2
Frontal face authentication using discriminating grids withmorphological feature vectors
IEEE Transactions on Multimedia
Computer user verification using login string keystroke dynamics
IEEE Transactions on Systems, Man, and Cybernetics, Part A: Systems and Humans
Minimum Class Variance Support Vector Machines
IEEE Transactions on Image Processing
Biometric identification based on the eye movements and graph matching techniques
Pattern Recognition Letters
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We explore the possibility of using human-generated time-series as biometric signature. Adopting a simple psychometric procedure, in which a button is pressed in entirely random manner, successive elapsed times are registered and gathered in a signal reflecting user's internal cognitive processes. By reconstructing and comparing the dynamics across repetitions from the same subject a noticeable consistency was observed. Moreover, the dynamics showed a prominent idiosyncratic character when realizations from different subjects were contrasted. We established an appropriate similarity measure to systematize such comparisons and experimentally verified that it is feasible to restore someone's identity from RTI (random time-interval) signals. By incorporating it in an SVM-based verification system, which was trained and tested using a medium sized dataset (from 40 persons), a considerably low equal error rate (EER) of ~5% was achieved. RTI signals can be collected effortlessly and this makes our approach appealing, especially in transactions mediated by standard pc terminal keyboards or even telephone keypads.