Banca de QUALIFICAÇÃO: JULLIANA CAROLINE GONÇALVES DE ARAÚJO SILVA MARQUES

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : JULLIANA CAROLINE GONÇALVES DE ARAÚJO SILVA MARQUES
DATA : 03/07/2020
HORA: 09:00
LOCAL: Google Meets
TÍTULO:

The impact of feature selection methods on online handwritten signature by using clustering-based analysis

PALAVRAS-CHAVES:

online handwritten signature, feature selection, clustering, SVC2004, xLongSignDB.

PÁGINAS: 56
RESUMO:

Handwritten signature is one of the oldest and most accepted biometric authentication methods for human identity establishment in society. With the popularisation of computers and, consequently, computational biometric authentication systems, the signature was chosen for being one of the biometric traits of an individual that is unique for every person. However, when dealing with biometric data, including signature data, problems related to high dimensional space, can be generated. Among other issues, irrelevant, redundant data and noise are the most significant, as they result in a decreased of identification accuracy. Thus, it is necessary to reduce the space by selecting the smallest set of features that contain the most discriminative features, increasing the accuracy of the system. In this way, our proposal in this work is to analyse the impact of feature selection on individuals identification accuracy based on the handwritten online signature. For this, we will use two well-known online signature databases. For the feature selection process, we have applied two filter and one wrapper methods. Then, the resulted datasets are evaluated by classification algorithms and validated with a clustering technique. Besides, we have used a statistical test to corroborate our conclusions. Experiments presented satisfactory results, showing that we reached a classification average accuracy of over 98\% for both datasets.

MEMBROS DA BANCA:
Presidente - 2524467 - MARJORY CRISTIANY DA COSTA ABREU
Externa ao Programa - 2938129 - LAURA EMMANUELLA ALVES DOS SANTOS SANTANA DE OLIVEIRA
Externo ao Programa - 1153006 - LUIZ AFFONSO HENDERSON GUEDES DE OLIVEIRA