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Showing 1 to 11 of 11 entries
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Examining the predictive accuracy of the novel 3D N-linear algebraic molecular codifications on benchmark datasets.

Journal of cheminformatics

García-Jacas CR, Contreras-Torres E, Marrero-Ponce Y, Pupo-Meriño M, Barigye SJ, Cabrera-Leyva L.
PMID: 26925168
J Cheminform. 2016 Feb 25;8:10. doi: 10.1186/s13321-016-0122-x. eCollection 2016.

BACKGROUND: Recently, novel 3D alignment-free molecular descriptors (also known as QuBiLS-MIDAS) based on two-linear, three-linear and four-linear algebraic forms have been introduced. These descriptors codify chemical information for relations between two, three and four atoms by using several (dis-)similarity...

Distributed and multicore QuBiLS-MIDAS software v2.0: Computing chiral, fuzzy, weighted and truncated geometrical molecular descriptors based on tensor algebra.

Journal of computational chemistry

García-Jacas CR, Marrero-Ponce Y, Vivas-Reyes R, Suárez-Lezcano J, Martinez-Rios F, Terán JE, Aguilera-Mendoza L.
PMID: 32058625
J Comput Chem. 2020 May 05;41(12):1209-1227. doi: 10.1002/jcc.26167. Epub 2020 Feb 14.

Advances to the distributed, multi-core and fully cross-platform QuBiLS-MIDAS software v2.0 (http://tomocomd.com/qubils-midas) are reported in this article since the v1.0 release. The QuBiLS-MIDAS software is the only one that computes atom-pair and alignment-free geometrical MDs (3D-MDs) from several distance...

Smoothed Spherical Truncation based on Fuzzy Membership Functions: Application to the Molecular Encoding.

Journal of computational chemistry

García-Jacas CR, Marrero-Ponce Y, Brizuela CA, Suárez-Lezcano J, Martinez-Rios F.
PMID: 31647589
J Comput Chem. 2020 Jan 30;41(3):203-217. doi: 10.1002/jcc.26089. Epub 2019 Oct 24.

A novel spherical truncation method, based on fuzzy membership functions, is introduced to truncate interatomic (or interaminoacid) relations according to smoothing values computed from fuzzy membership degrees. In this method, the molecules are circumscribed into a sphere, so that...

QuBiLS-MAS, open source multi-platform software for atom- and bond-based topological (2D) and chiral (2.5D) algebraic molecular descriptors computations.

Journal of cheminformatics

Valdés-Martiní JR, Marrero-Ponce Y, García-Jacas CR, Martinez-Mayorga K, Barigye SJ, Vaz d'Almeida YS, Pham-The H, Pérez-Giménez F, Morell CA.
PMID: 29086120
J Cheminform. 2017 Jun 07;9(1):35. doi: 10.1186/s13321-017-0211-5.

BACKGROUND: In previous reports, Marrero-Ponce et al. proposed algebraic formalisms for characterizing topological (2D) and chiral (2.5D) molecular features through atom- and bond-based ToMoCoMD-CARDD (acronym for Topological Molecular Computational Design-Computer Aided Rational Drug Design) molecular descriptors. These MDs codify...

Database fingerprint (DFP): an approach to represent molecular databases.

Journal of cheminformatics

Fernández-de Gortari E, García-Jacas CR, Martinez-Mayorga K, Medina-Franco JL.
PMID: 28224019
J Cheminform. 2017 Feb 06;9:9. doi: 10.1186/s13321-017-0195-1. eCollection 2017.

BACKGROUND: Molecular fingerprints are widely used in several areas of chemoinformatics including diversity analysis and similarity searching. The fingerprint-based analysis of chemical libraries, in particular of large collections, usually requires the molecular representation of each compound in the library...

Correction to Alignment-Free Antimicrobial Peptide Predictors: Improving Performance by a Thorough Analysis of the Largest Available Data Set.

Journal of chemical information and modeling

Pinacho-Castellanos SA, García-Jacas CR, Gilson MK, Brizuela CA.
PMID: 34161087
J Chem Inf Model. 2021 Jul 26;61(7):3736. doi: 10.1021/acs.jcim.1c00656. Epub 2021 Jun 23.

No abstract available.

GOWAWA Aggregation Operator-based Global Molecular Characterizations: Weighting Atom/bond Contributions (LOVIs/LOEIs) According to their Influence in the Molecular Encoding.

Molecular informatics

García-Jacas CR, Cabrera-Leyva L, Marrero-Ponce Y, Suárez-Lezcano J, Cortés-Guzmán F, García-González LA.
PMID: 30070434
Mol Inform. 2018 Dec;37(12):e1800039. doi: 10.1002/minf.201800039. Epub 2018 Aug 02.

A different perspective to compute global weighted definitions of molecular descriptors from the contributions of each atom (LOVIs) or covalent bond (LOEIs) within a molecule is presented, using the generalized ordered weighted averaging - weighted averaging (GOWAWA) aggregation operator....

Predicting reactive sites with quantum chemical topology: carbonyl additions in multicomponent reactions.

Physical chemistry chemical physics : PCCP

Ramírez-Palma DI, García-Jacas CR, Carpio-Martínez P, Cortés-Guzmán F.
PMID: 32307508
Phys Chem Chem Phys. 2020 May 07;22(17):9283-9289. doi: 10.1039/d0cp00300j. Epub 2020 Apr 20.

Quantum Chemical Topology (QCT) is a well established structural theoretical approach, but the development of its reactivity component is still a challenge. The hypothesis of this work is that the reactivity of an atom within a molecule is a...

Multi-Server Approach for High-Throughput Molecular Descriptors Calculation based on Multi-Linear Algebraic Maps.

Molecular informatics

García-Jacas CR, Aguilera-Mendoza L, González-Pérez R, Marrero-Ponce Y, Acevedo-Martínez L, Barigye SJ, Avdeenko T.
PMID: 27490863
Mol Inform. 2015 Jan;34(1):60-9. doi: 10.1002/minf.201400086. Epub 2014 Nov 28.

The present report introduces a novel module of the QuBiLS-MIDAS software for the distributed computation of the 3D Multi-Linear algebraic molecular indices. The main motivation for developing this module is to deal with the computational complexity experienced during the...

N-linear algebraic maps for chemical structure codification: a suitable generalization for atom-pair approaches?.

Current drug metabolism

Garcia-Jacas CR, Marrero-Ponce Y, Barigye SJ, Valdes-Martini JR, Rivera-Borroto OM, Olivero-Verbel J.
PMID: 24909423
Curr Drug Metab. 2014;15(4):441-69. doi: 10.2174/1389200215666140605124506.

The present manuscript introduces, for the first time, a novel 3D-QSAR alignment free method (QuBiLS-MIDAS) based on tensor concepts through the use of the three-linear and four-linear algebraic forms as specific cases of n-linear maps. To this end, the...

Choquet integral-based fuzzy molecular characterizations: when global definitions are computed from the dependency among atom/bond contributions (LOVIs/LOEIs).

Journal of cheminformatics

García-Jacas CR, Cabrera-Leyva L, Marrero-Ponce Y, Suárez-Lezcano J, Cortés-Guzmán F, Pupo-Meriño M, Vivas-Reyes R.
PMID: 30362050
J Cheminform. 2018 Oct 25;10(1):51. doi: 10.1186/s13321-018-0306-7.

BACKGROUND: Several topological (2D) and geometric (3D) molecular descriptors (MDs) are calculated from local vertex/edge invariants (LOVIs/LOEIs) by performing an aggregation process. To this end, norm-, mean- and statistic-based (non-fuzzy) operators are used, under the assumption that LOVIs/LOEIs are...

Showing 1 to 11 of 11 entries