Results 51 to 60 of about 445 (189)

Offline Handwritten Signature Watermark for Digital Document Authentication [PDF]

, 2008
This thesis introduces a novel biometric watermarking technique using offline handwritten signature, namely, signature image, as the watermark. Traditionally, the host image is embedded using originator\'s name, graphical logo and serial number which can
Low, Cheng Yaw, Yaw, Low Cheng
core  

CausaOne-sign: Causal explainable one-shot signature verification with lightweight cross-modality fusion

Ain Shams Engineering Journal
Background: Offline handwritten signature verification remains a difficult biometrics problem due to large intra-writer variability; skilled forgers; the limited number of reference samples available; and the black-box nature of many current deep ...
Sara Tehsin, Inzamam Mashood Nasir, Ali Hassan, Farhan Riaz   +3 more
doaj   +1 more source

A Selfless Integrator or a Selfish Quasi‐Professional? Relational Tactics for Organizational Professionals’ Durable Influence

Journal of Management Studies, EarlyView.
Abstract Our study works towards a ‘sociology of organizational professionals’ by elucidating how they navigate domains dominated by occupational professionals. It shows that relational tactics impact whether organizational professionals remain limited to a periphery, become subservient to occupational professionals, or achieve durable roles.
Giovanni Radaelli, Graeme Currie, Saku Mantere   +2 more
wiley   +1 more source

Unsupervised Handwritten Signature Verification with Extreme Learning Machines [PDF]

, 2023
Handwritten signature verification has two approaches based on online or offline data collection, both of them being supervised machine learning tasks. This work investigates the feasibility of unsupervised signature verification.
Espinosa-Leal, Leonardo; id_orcid, Björk, Kaj-Mikael, Akusok, Anton, Lendasse, Amaury   +3 more
core   +1 more source

Offline Signature Verification System Based on the Online Data

EURASIP Journal on Advances in Signal Processing, 2008
Most of the signature verification work done in the past years focused either on offline or online approaches. In this paper, a different methodology is proposed, where the online reference data acquired through a digitizing tablet serves as the basis ...
Lee Luan Ling, Alessandro Zimmer
doaj   +1 more source

Programmable van der Waals Heterojunction for Multifunctional Integration

SmartMat, Volume 7, Issue 4, August 2026.
A MoS2/MAPbBr3 van der Waals heterostructure is programmed by gate bias to switch among photodetector, synaptic transistor, and gate‐bias‐assisted optical‐memory modes. Gate‐controlled carrier trapping tunes the response timescale, enabling mode reconfiguration in a single device.
An Gui, Yutao Song, Tong Li, Kaiwen Gong, Haozhe Li, Haoran Mu, Rong Yang, Lei Liao, Guangyu Zhang, Shenghuang Lin   +9 more
wiley   +1 more source

Polarization‐Enabled Piezoelectric Tellurium–Selenium (TexSe1–x) Thin Films for Memory Switching and Artificial Synaptic Functions

Advanced Science, Volume 13, Issue 40, 17 July 2026.
Here, we demonstrate and investigate polarization‐enabled electromechanical responses in cryogenic physical vapor deposition (cryogenic PVD)‐deposited TexSe1‐x thin films, a tellurium‐based compound with a tunable bandgap and enhanced non‐centrosymmetry.
Chia‐Chen Chung, Mayur Chaudhary, Chia‐Hung Lo, Po‐Chien Lai, You‐Jie Lin, Ruei‐Hong Cyu, Yu‐Ren Peng, Bing‐Ni Gu, Zhao‐Feng Lou, Quynh Thi Le, Yi‐Jen Yu, Yen‐Fu Lin, Min‐Hung Lee, Ying‐Hao Chu, Chang‐Hong Shen, Der‐Hsien Lien, Yu‐Lun Chueh   +16 more
wiley   +1 more source

An Ensemble Based Offline Handwritten Signature Verification System

Statistics, Optimization & Information Computing, 2020
In the field of security and forgery prevention, handwritten signatures are the most widely recognized biometric since long and also most practical. Although handwritten signature verification systems are studied using both On-line and Off-line approaches, Off-line signature verification systems are more difficult to compare to On-line verification ...
Alpana Deka, Lipi B Mahanta
openaire   +2 more sources

Feature Extraction on Offline Handwritten Signature using PCA and LDA for Verification System [PDF]

, 2012
Handwritten signature verification system is one of biometric alternative solution for conventional vulnerable verification system. Biometric verification system has more secured since the difficulties in forgery and burglary. Handwritten signature is
Muda, A. K.
core  

Swish‐Gumbel: A New Activation Function for Image Classification

Concurrency and Computation: Practice and Experience, Volume 38, Issue 14, July 2026.
ABSTRACT In this study, we present Swish‐Gumbel, a new family of activation functions generated by combining the Swish and Gumbel functions through both multiplication and linear composition. We evaluate their performance on several image classification benchmarks, including MNIST, CIFAR‐10, Imagenette, and Beans, using different deep learning ...
Elif Dorukbaşı, Burhan Selçuk, İlker Türker   +2 more
wiley   +1 more source