Search Results for author: Elias N. Zois

Found 4 papers, 0 papers with code

Leveraging Expert Models for Training Deep Neural Networks in Scarce Data Domains: Application to Offline Handwritten Signature Verification

no code implementations2 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.

Knowledge Distillation

Sequential Motif Profiles and Topological Plots for Offline Signature Verification

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.

Graph Mining

A comprehensive study of sparse representation techniques for offline signature verification

no code implementations13 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.

Offline Handwritten Signature Modeling and Verification Based on Archetypal Analysis

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.

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