no code implementations • 2 Aug 2023 • Dimitrios Tsourounis, Ilias Theodorakopoulos, Elias N. Zois, George Economou
This paper introduces a novel approach to leverage the knowledge of existing expert models for training new Convolutional Neural Networks, on domains where task-specific data are limited or unavailable.
no code implementations • CVPR 2020 • Elias N. Zois, Evangelos Zervas, Dimitrios Tsourounis, George Economou
The local visibility graph features are considered to be highly informative for SV; this is sustained by the corresponding results which are at least comparable with other classic state-of-the-art approaches.
no code implementations • 13 Jul 2018 • Elias N. Zois, Dimitrios Tsourounis, Ilias Theodorakopoulos, Anastasios Kesidis, George Economou
In this work, a feature extraction method for offline signature verification is presented that harnesses the power of sparse representation in order to deliver state-of-the-art verification performance in several signature datasets like CEDAR, MCYT-75, GPDS and UTSIG.
no code implementations • ICCV 2017 • Elias N. Zois, Ilias Theodorakopoulos, George Economou
The output of the archetypal analysis of few reference samples is a set of archetypes which are used to form the base of the feature space.