Ismael Navas-Delgado

Dr. Ismael Navas-Delgado

Departamento de Lenguajes y Ciencias de la Computación. E.T.S. de Ingeniería Informática. University of Malaga, Spain
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Research Focus & Metrics

Academic Career Length

23Years (2004-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 August 2015 in Frontiers in Plant Science
Verified
Journal Article
Open access
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RCRosario Carmona
Rosario Carmona
AZAdoración Zafra
Adoración Zafra
PSPedro Seoane
Pedro Seoane
ACAntonio J Castro
Antonio J Castro
DGDarío Guerrero-Fernández
Darío Guerrero-Fernández
M. Gonzalo ClarosM. Gonzalo Claros
M. Gonzalo Claros
Plant reproductive transcriptomes have been analysed in different species due to the agronomical and biotechnological importance of plant reproduction. Here we presented an olive tree reproductive transcriptome database with samples from pollen and pistil at different developmental stages, and leaf and root as control vegetative tissues (http://reprolive.eez.csic.es). It was developed from 2,077,309 raw reads and 1,549 Sanger sequences. Using a pre-defined workflow based on open-source tools, sequences were pre-processed, assembled, mapped and annotated with expression data, descriptions, GO terms, InterPro signatures, EC numbers, KEGG pathways, ORFs, and SSRs. Tentative transcripts were also annotated with the corresponding orthologues in Arabidopsis thaliana from TAIR and RefSeq databases to enable Linked Data integration. It results in a reproductive transcriptome comprising 72,846 contigs with average length of 686 bp, of which 63,965 (87.8%) included at least one functional annotation, and 55,356 (75.9%) had an orthologue. A minimum of 23,568 different tentative transcripts was identified and 5,835 of them contain a complete ORF. The representative reproductive transcriptome can be reduced to 28,972 tentative transcripts for further gene expression studies. Partial transcriptomes from pollen, pistil and vegetative tissues as control were also constructed. ReprOlive provides free access and download capability to these results. Retrieval mechanisms for sequences and transcript annotations are provided. Graphical localisation of annotated enzymes into KEGG pathways is also possible. Finally, ReprOlive has included a semantic conceptualisation by means of a Resource Description Framework (RDF) allowing a Linked Data search for extracting the most updated information related to enzymes, interactions, allergens, structures and reactive oxygen species.

5 February 2023 in Computers in Biology and Medicine
Verified
Journal Article
Open access
HNHossein Nematzadeh
Hossein Nematzadeh
José Manuel García-NietoJosé Manuel García-Nieto
José Manuel García-Nieto
Ismael Navas-DelgadoIsmael Navas-Delgado
Ismael Navas-Delgado
JAJosé F. Aldana-Montes
José F. Aldana-Montes
Explainable Artificial Intelligence (XAI) makes AI understandable to the human user particularly when the model is complex and opaque. Local Interpretable Model-agnostic Explanations (LIME) has an image explainer package that is used to explain deep learning models. The image explainer of LIME needs some parameters to be manually tuned by the expert in advance, including the number of top features to be seen and the number of superpixels in the segmented input image. This parameter tuning is a time-consuming task. Hence, with the aim of developing an image explainer that automizes image segmentation, this paper proposes Ensemble-based Genetic Algorithm Explainer (EGAE) for melanoma cancer detection that automatically detects and presents the informative sections of the image to the user. EGAE has three phases. First, the sparsity of chromosomes in GAs is determined heuristically. Then, multiple GAs are executed consecutively. However, the difference between these GAs are in different number of superpixels in the input image that result in different chromosome lengths. Finally, the results of GAs are ensembled using consensus and majority votings. This paper also introduces how Euclidean distance can be used to calculate the distance between the actual explanation (delineated by experts) and the calculated explanation (computed by the explainer) for accuracy measurement. Experimental results on a melanoma dataset show that EGAE automatically detects informative lesions, and it also improves the accuracy of explanation in comparison with LIME efficiently. The python codes for EGAE, the ground truths delineated by clinicians, and the melanoma detection dataset are available at https://github.com/KhaosResearch/EGAE.

27 October 2005 in Bioinformatics
Verified
Journal Article
Open access
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Ismael Navas-DelgadoIsmael Navas-Delgado
Ismael Navas-Delgado
MRMaria del Mar Rojano-Muñoz
Maria del Mar Rojano-Muñoz
SRSergio Ramírez
Sergio Ramírez
APAntonio J. Pérez-Pulido
Antonio J. Pérez-Pulido
Eduardo Andrés-LeónEduardo Andrés-León
Eduardo Andrés-León
OTOswaldo Trelles
Oswaldo Trelles
Motivation: In addition to existing bioinformatics software, a lot of new tools are being developed world wide to supply services for an ever growing, widely dispersed and heterogeneous collection of biological data. The integration of these resources under a common platform is a challenging task. To this end, several groups are developing integration technologies, in which services are usually registered in some sort of catalogue to allow novel discovering and accessing mechanisms to be implemented. However, each service demands specific interfaces to accommodate their parameters and it is a complicated task linking the different service inputs and outputs to solve a biological problem. Results: In this work we address the design and implementation of a versatile web client to access BioMOBY compatible services (a system by which a client can interact with multiple sources of biological data regardless of the underlying format or schema) using the service description stored in the BioMOBY catalogue. The automatic interface generator significantly reduces developing time and produces uniform service access mechanisms. The design and proof of concept (for such a client) including the generic interface generator have been developed and implemented in the National Institute for Bioinformatics in Spain. Availability: The INB (National Institute for Bioinformatics, Spain) platform is available at Contact:ots@ac.uma.es Supplementary information:

20 November 2024 in Engineering Applications of Artificial Intelligence
Verified
Journal Article
Open access
HNHossein Nematzadeh
Hossein Nematzadeh
José Manuel García-NietoJosé Manuel García-Nieto
José Manuel García-Nieto
SHSandro Hurtado
Sandro Hurtado
JAJosé F. Aldana-Montes
José F. Aldana-Montes
Ismael Navas-DelgadoIsmael Navas-Delgado
Ismael Navas-Delgado

1 November 2021 in Knowledge-Based Systems
Verified
Journal Article
Open access
ABAntonio Benítez-Hidalgo
Antonio Benítez-Hidalgo
CBCristóbal Barba-González
Cristóbal Barba-González
José Manuel García-NietoJosé Manuel García-Nieto
José Manuel García-Nieto
PGPedro Gutiérrez-Moncayo
Pedro Gutiérrez-Moncayo
MPManuel Paneque
Manuel Paneque
Ismael Navas-DelgadoIsmael Navas-Delgado
Ismael Navas-Delgado

17 February 2024 in Expert Systems with Applications
Verified
Journal Article
Open access
HNHossein Nematzadeh
Hossein Nematzadeh
José Manuel García-NietoJosé Manuel García-Nieto
José Manuel García-Nieto
JAJosé F. Aldana-Montes
José F. Aldana-Montes
Ismael Navas-DelgadoIsmael Navas-Delgado
Ismael Navas-Delgado