Results 41 to 50 of about 40,386 (155)

Tests for Categorical Data Beyond Pearson: A Distance Covariance and Energy Distance Approach

Biometrical Journal, Volume 68, Issue 3, June 2026.
ABSTRACT Categorical variables are of uttermost importance in biomedical research. When two of them are considered, it is often the case that one wants to test whether or not they are statistically dependent. We show weaknesses of classical methods—such as Pearson's and the G$G$‐test—and we propose testing strategies based on distances that lack those ...
Fernando Castro‐Prado, Wenceslao González‐Manteiga, Javier Costas, Fernando Facal, Dominic Edelmann   +4 more
wiley   +1 more source

On the Risk of Cancelable Biometrics

, 2019
Cancelable biometrics (CB) employs an irreversible transformation to convert the biometric features into transformed templates while preserving the relative distance between two templates for security and privacy protection. However, distance preservation invites unexpected security issues such as pre-image attacks, which are often neglected.This paper
Dong, Xingbo, Park, Jaewoo, Jin, Zhe, Teoh, Andrew Beng Jin, Tistarelli, Massimo, Wong, KokSheik   +5 more
openaire   +2 more sources

A Hybrid Chaotic and Random Grid Visual Cryptography-Based Framework for Secure and Revocable Biometric Template Protection

Signals
Biometric authentication systems are increasingly deployed in critical security applications, yet the irreplaceable nature of biometric traits poses fundamental risks when templates are compromised.
Abdelhakim Fares, Abderrahim Fayçal Megri, Abdallah Meraoumia   +2 more
doaj   +1 more source

Reducing Spatial Bias at Heterogeneous Sites: A Novel Eddy Covariance Filtering Approach Integrating Footprint Modeling and Remote Sensing

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract Eddy covariance (EC) measurements of net ecosystem exchange (NEE) over sites with multiple land cover classes may suffer from significant uncertainty due to heterogeneity in biological source/sink distribution and flux footprint variation, masking the “true” signal of the target system.
Torben Oliver Callesen, Anna Candotti, Sarah Treby, Samantha Grover, Damiano Zanotelli, Massimo Tagliavini, Leonardo Montagnani   +6 more
wiley   +1 more source

Cancelable Face Biometrics With Soft-Biometric Privacy Enhancement

IEEE Access
The storage of biometric data has raised significant privacy concerns, necessitating robust measures for secure storage. While traditional Privacy-Enhancing Technologies (PETs), like Cancelable Biometric (CB) schemes, excel at creating protected templates that fulfill criteria such as irreversibility and unlinkability, they often fail to preserve the ...
Pietro Melzi, Hatef Otroshi-Shahreza, Christian Rathgeb, Ruben Tolosana, Rubén Vera-Rodríguez, Julian Fierrez, Sébastien Marcel, Christoph Busch 0001   +7 more
openaire   +2 more sources

The Emerging Challenges of Wearable Biometric Cryptosystems

Cryptography
Cryptographic key generation and data encryption and decryption using wearable biometric technologies is an emerging research area with significant potential for authentication and communication security.
Khalid Al Ajlan, Tariq Alsboui, Omar Alshaikh, Isa Inuwa-Dute, Saad Khan, Simon Parkinson   +5 more
doaj   +1 more source

Nest Survival and Failure in Ruffs Breeding on Grazed Coastal Meadows

Ecology and Evolution, Volume 16, Issue 4, April 2026.
ABSTRACT Nest survival is a key determinant of birds' breeding success, particularly in ground‐breeding birds, where nest predation is a major cause of reproductive failure. Birds can maximise their nesting success by optimising aspects of the sociospatial environment of a nest, for example, by reducing the risk of predation or flooding.
Hanna Algora, Krisztina Kupán, Jelena Belojević, Veli‐Matti Pakanen, James D. M. Tolliver, Veronika A. Rohr‐Bender, Kari Koivula, Clemens Küpper   +7 more
wiley   +1 more source

A comparative study on unconstrained hand biometrics [PDF]

, 2011
Biometrics applied to mobile devices are of great interest for security applications. Daily scenarios can benefit of a combination of both the most secure systems and most simple and extended devices.
Bailador del Pozo, Gonzalo, Sánchez Ávila, Carmen, Guerra Casanova, Javier, Santos Sierra, Alberto de, C. S. Avila, J. G. Casanova, A. de Santos Sierra, G. B. del Pozo, Sánchez Ávila, María del Carmen   +8 more
core   +1 more source

Triboelectric Tactile Transducers for Neuromorphic Sensing and Synaptic Emulation: Materials, Architectures, and Interfaces

Advanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.
Triboelectric nanogenerators are vital for sustainable energy in future technologies such as wearables, implants, AI, ML, sensors and medical systems. This review highlights improved TENG neuromorphic devices with higher energy output, better stability, reduced power demands, scalable designs and lower costs.
Ruthran Rameshkumar, Arunkumar Chandrasekhar, Poongundran Selvaprabhu   +2 more
wiley   +1 more source

Cancellable Speaker Credentials Under Template Exposure

IEEE Access
Deep neural speaker embeddings enable accurate voice authentication; however, they introduce a fundamental limitation: once biometric templates are compromised, they cannot be reissued like passwords or cryptographic keys.
Oyebode Oluwatobi Oyewale, Yuzo Taenaka, Youki Kadobayashi   +2 more
doaj   +1 more source