Detalhes do Documento

An Efficient Feature Extraction Method for Identifying Signatures of Viral Genomic Variants

Autor(es): Souza, Felipe Bueno de ; Pimenta-Zanon, Matheus Henrique ; Henriques, Dora ; Pinto, M. Alice ; Balsa, Carlos ; Rufino, José ; Lopes, Fabrício Martins

Data: 2026

Identificador Persistente: http://hdl.handle.net/10198/36927

Origem: Biblioteca Digital da UPB

Projeto/bolsa: info:eu-repo/grantAgreement/FCT/Avaliação UID 2023/2024 PRR/UID/PRR/05757/2025/PT; info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA/P/0007/2020/PT; info:eu-repo/grantAgreement/FCT//UID/PRR/00690/2025/PT; info:eu-repo/grantAgreement/FCT/CIMO/UID/00690/2025/PT;

Assunto(s): Viral genomics; k-mer analysis; Feature extraction; SARS-CoV-2; Computational efficiency; Discriminative regions; Genomic signatures; Alignment-free analysis; Data-driven; Non-parametric modeling


Descrição

Genomic analysis is a powerful way to understand viral pathogens and their variations. However, most of the genomic analysis methods are based on sequence alignment, which has a high computational cost. This study introduces a novel methodology to extract discriminative regions from viral genomes. Using exclusive k-mers through strategically defined sliding windows, our approach identifies genomic regions with high concentrations of variant-specific signatures, showcasing high-accuracy classification while requiring modest computational resources. The data-driven and nonparametric nature of our approach enables pattern extraction without imposing predefined distributions, enhancing both analytical flexibility and result interpretability. By balancing minimal k-mer sizes with maximum discriminative power, our method achieves remarkable generalization capability even with limited training samples. The computational efficiency of the methodology alongside the biological transparency and explainability in the results makes it accessible to research environments with restricted processing capacity, potentially accelerating genomic signature discovery across diverse viral pathogens and contributing to better variant tracking and characterization, thus opening up even more possibilities in genomic analysis studies.

Tipo de Documento Comunicação em conferência
Idioma Inglês
Contribuidor(es) Biblioteca Digital da UPB
Licença CC
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