Manuel Ojeda Aciego

Full Professor

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NoteRecent publications

Approaching the square of opposition in terms of the -indexes of inclusion and contradiction

2024
Nicolás Madrid, Manuel Ojeda-Aciego
Fuzzy Sets Syst. vol. 476 , pages 108769.

A Critical Analysis of the Theoretical Framework of the Extreme Learning Machine

2024
Irina Perfilieva, Nicolás Madrid, Manuel Ojeda-Aciego, Piotr Artiemjew, Agnieszka Niemczynowicz
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Connecting concept lattices with bonds induced by external information

2023
Ondrej Krídlo, Domingo López Rodríguez, Lubomir Antoni, Peter Eliaš, Stanislav Krajči, Manuel Ojeda-Aciego
Information Sciences, vol. 648, november 2023, article 119498

The -index of inclusion as optimal adjoint pair for fuzzy modus ponens

2023
Nicolás Madrid, Manuel Ojeda-Aciego
Fuzzy Sets Syst. vol. 466 , pages 108474.

Fuzzy relational Galois connections between fuzzy transitive digraphs

2023
Inma P. Cabrera, Pablo Cordero, Emilio Muñoz Velasco, Manuel Ojeda-Aciego, Bernard De Baets
Fuzzy Sets Syst. 463: 108456

Simplifying Implications with Positive and Negative Attributes: A Logic-Based Approach

2022
Francisco Pérez Gámez, Domingo López Rodríguez, Pablo Cordero, Ángel Mora, Manuel Ojeda-Aciego
Mathematics, 10(4) 607

Classifying Adjoint Pairs and Adjoint Triples in an Atanassov {}L{}-Fuzzy Framework

2022
Ondrej Krídlo, Manuel Ojeda-Aciego
{IEEE} Trans. Fuzzy Syst. vol. 30 (3), pages 863–868.

Formal concept analysis with negative attributes for forgery detection

2021
Manuel Ojeda-Aciego, José Manuel Rodríguez-Jiménez
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Multi-adjoint lattices from adjoint triples with involutive negation

2021
Nicolás Madrid, Manuel Ojeda-Aciego
Fuzzy Sets Syst. vol. 405 , pages 88–105.

Measures of inclusion and entropy based on the -index of inclusion

2021
Nicolás Madrid, Manuel Ojeda-Aciego
Fuzzy Sets Syst. vol. 423 , pages 29–54.

A Formal Concept Analysis Approach to Cooperative Conversational Recommendation

2020
Pablo Cordero, Manuel Enciso, Ángel Mora, Manuel Ojeda-Aciego, Carlos Rossi
International Journal of Computational Intelligence Systems, 13 (1), pp. 1243 - 1252

On Contradiction and Inclusion Using Functional Degrees

2020
Nicolás Madrid, Manuel Ojeda-Aciego
Int. J. Comput. Intell. Syst. vol. 13 (1), pages 464–471.

A flexible logic-based approach to closeness using order of magnitude qualitative reasoning

2020
Alfredo Burrieza, Emilio Muñoz Velasco, Manuel Ojeda-Aciego
Log. J. {IGPL} vol. 28 (1), pages 121–133.

Functional degrees of inclusion and similarity between -fuzzy sets

2020
Nicolás Madrid, Manuel Ojeda-Aciego
Fuzzy Sets Syst. vol. 390 , pages 1–22.

Relational Galois connections between transitive digraphs: Characterization and construction

2020
Inma P. Cabrera, Pablo Cordero, Emilio Muñoz Velasco, Manuel Ojeda-Aciego, Bernard De Baets
Information Sciences vol. 519 , pages 439 – 450.

Relational Galois connections between transitive fuzzy digraphs

2020
Inma P. Cabrera, Pablo Cordero, Emilio Muñoz Velasco, Manuel Ojeda-Aciego, Bernard De Baets
Mathematical Methods in the Applied Sciences vol. 43 (9), pages 5673 – 5680.

A flexible logic-based approach to closeness using order of magnitude qualitative reasoning

2019
Alfredo Burrieza, Emilio Muñoz Velasco, Manuel Ojeda-Aciego
Logic Journal of the IGPL vol. 28 (1), pages 121-133.

-fuzzy relational mathematical morphology based on adjoint triples

2019
Nicolás Madrid, Manuel Ojeda-Aciego, Jesús Medina, Irina Perfilieva
Inf. Sci. vol. 474 , pages 75–89.

Galois Connections Between a Fuzzy Preordered Structure and a General Fuzzy Structure

2018
Inma P. Cabrera, Pablo Cordero, Francisca García-Pardo, Manuel Ojeda-Aciego, Bernard De Baets
{IEEE} Trans. Fuzzy Syst. vol. 26 (3), pages 1274–1287.

The Chu construction and generalized formal concept analysis

2017
L’ubomír Antoni, Inma P. Cabrera, Stanislav Krajci, Ondrej Kridlo, Manuel Ojeda-Aciego
Int. J. Gen. Syst. vol. 46 (5), pages 458–474.

On the construction of adjunctions between a fuzzy preposet and an unstructured set

2017
Inma P. Cabrera, Pablo Cordero, Francisca García-Pardo, Manuel Ojeda-Aciego, Bernard De Baets
Fuzzy Sets Syst. vol. 320 , pages 81–92.

Fuzzy Mathematical Models for Computer Science and Decision Making

2017
Humberto Bustince, Susana Montes, Manuel Ojeda-Aciego
Int. J. Uncertain. Fuzziness Knowl. Based Syst. vol. 25 (Supplement-1), pages 1–4.

A multimodal logic for closeness

2017
Alfredo Burrieza, Emilio Muñoz Velasco, Manuel Ojeda-Aciego
J. Appl. Non Class. Logics vol. 27 (3-4), pages 225–237.

On reductants in the framework of multi-adjoint logic programming

2017
Pascual Julián Iranzo, Jesús Medina, Manuel Ojeda-Aciego
Fuzzy Sets Syst. vol. 317 , pages 27–43.

On the Dedekind-MacNeille completion and formal concept analysis based on multilattices

2016
Jesús Medina-Moreno, Manuel Ojeda-Aciego, Jozef Pócs, Eloísa Ramírez-Poussa
Fuzzy Sets Syst. vol. 303 , pages 1–20.

Concept lattices and their applications

2016
Manuel Ojeda-Aciego, Jan Outrata
Int. J. Gen. Syst. vol. 45 (2), pages 55–56.

On homogeneous -bonds and heterogeneous -bonds

2016
Jan Konecny, Manuel Ojeda-Aciego
Int. J. Gen. Syst. vol. 45 (2), pages 160–186.

Knowledge discovery in social networks by using a logic-based treatment of implications

2015
Pablo Cordero, Manuel Enciso, Ángel Mora, Manuel Ojeda-Aciego, Carlos Rossi
Knowl. Based Syst. vol. 87 , pages 16–25.

The Notion of Weak-Contradiction: Definition and Measures

2015
Humberto Bustince, Nicolás Madrid, Manuel Ojeda-Aciego
{IEEE} Trans. Fuzzy Syst. vol. 23 (4), pages 1057–1069.

On basic conditions to generate multi-adjoint concept lattices via Galois connections

2014
Juan Carlos Díaz-Moreno, Jesús Medina, Manuel Ojeda-Aciego
Int. J. Gen. Syst. vol. 43 (2), pages 149–161.

Multi-adjoint concept lattices with heterogeneous conjunctors and hedges

2014
Jan Konecny, Jesús Medina, Manuel Ojeda-Aciego
Ann. Math. Artif. Intell. vol. 72 (1-2), pages 73–89.

On the definition of suitable orderings to generate adjunctions over an unstructured codomain

2014
Francisca García-Pardo, Inma P. Cabrera, Pablo Cordero, Manuel Ojeda-Aciego, Francisco J. Rodríguez-Sanchez
Inf. Sci. vol. 286 , pages 173–187.

A logic framework for reasoning with movement based on fuzzy qualitative representation

2014
Emilio Muñoz Velasco, Alfredo Burrieza, Manuel Ojeda-Aciego
Fuzzy Sets Syst. vol. 242 , pages 114–131.

On residuation in multilattices: Filters, congruences, and homomorphisms

2014
Inma P. Cabrera, Pablo Cordero, Gloria Gutiérrez, Javier Martínez, Manuel Ojeda-Aciego
Fuzzy Sets Syst. vol. 234 , pages 1–21.

Revising the link between L-Chu correspondences and completely lattice L-ordered sets

2014
Ondrej Kridlo, Manuel Ojeda-Aciego
Ann. Math. Artif. Intell. vol. 72 (1-2), pages 91–113.

Dual multi-adjoint concept lattices

2013
Jesús Medina, Manuel Ojeda-Aciego
Inf. Sci. vol. 225 , pages 47–54.

The Category of L-Chu Correspondences and the Structure of L-Bonds

2012
Ondrej Kridlo, Stanislav Krajci, Manuel Ojeda-Aciego
Fundam. Informaticae vol. 115 (4), pages 297–325.

On multi-adjoint concept lattices based on heterogeneous conjunctors

2012
Jesús Medina, Manuel Ojeda-Aciego
Fuzzy Sets Syst. vol. 208 , pages 95–110.

On the existence and unicity of stable models in normal residuated logic programs

2012
Nicolás Madrid, Manuel Ojeda-Aciego
Int. J. Comput. Math. vol. 89 (3), pages 310–324.

Finitary coalgebraic multisemilattices and multilattices

2012
Inma P. Cabrera, Pablo Cordero, Gloria Gutiérrez, Javier Martínez, Manuel Ojeda-Aciego
Appl. Math. Comput. vol. 219 (1), pages 31–44.

A {PDL} Approach for Qualitative Velocity

2011
Alfredo Burrieza, Emilio Muñoz Velasco, Manuel Ojeda-Aciego
Int. J. Uncertain. Fuzziness Knowl. Based Syst. vol. 19 (1), pages 11–26.

On -fuzzy Chu correspondences

2011
Ondrej Kridlo, Manuel Ojeda-Aciego
Int. J. Comput. Math. vol. 88 (9), pages 1808–1818.

Measuring Inconsistency in Fuzzy Answer Set Semantics

2011
Nicolás Madrid, Manuel Ojeda-Aciego
{IEEE} Trans. Fuzzy Syst. vol. 19 (4), pages 605–622.

A coalgebraic approach to non-determinism: Applications to multilattices

2010
Inma P. Cabrera, Pablo Cordero, Gloria Gutiérrez, Javier Martínez, Manuel Ojeda-Aciego
Inf. Sci. vol. 180 (22), pages 4323–4335.

Multi-adjoint t-concept lattices

2010
Jesús Medina, Manuel Ojeda-Aciego
Inf. Sci. vol. 180 (5), pages 712–725.

Congruence relations on some hyperstructures

2009
Inma P. Cabrera, Pablo Cordero, Gloria Gutiérrez, Javier Martínez, Manuel Ojeda-Aciego
Ann. Math. Artif. Intell. vol. 56 (3-4), pages 361–370.

Formal concept analysis via multi-adjoint concept lattices

2009
Jesús Medina, Manuel Ojeda-Aciego, Jorge Ruiz-Calvi~no
Fuzzy Sets Syst. vol. 160 (2), pages 130–144.

Fuzzy congruence relations on nd-groupoids

2009
Inma P. Cabrera, Pablo Cordero, Gloria Gutiérrez, Javier Martínez, Manuel Ojeda-Aciego
Int. J. Comput. Math. vol. 86 (10{&}11), pages 1684–1695.

An implementation of a dual tableaux system for order-of-magnitude qualitative reasoning

2009
Alfredo Burrieza, Ángel Mora, Manuel Ojeda-Aciego, Ewa Orlowska
Int. J. Comput. Math. vol. 86 (10{&}11), pages 1852–1866.

On Fixed-Points of Multivalued Functions on Complete Lattices and Their Application to Generalized Logic Programs

2009
Umberto Straccia, Manuel Ojeda-Aciego, Carlos Viegas Damásio
{SIAM} J. Comput. vol. 38 (5), pages 1881–1911.

Editorial

2008
Manuel Ojeda-Aciego, Siegfried Gottwald, Petr Hájek
Fuzzy Sets Syst. vol. 159 (10), pages 1129–1130.

Relating generalized concept lattices and concept lattices for non-commutative conjunctors

2008
Jesús Medina, Manuel Ojeda-Aciego, Jorge Ruiz-Calvi~no
Appl. Math. Lett. vol. 21 (12), pages 1296–1300.

Fuzzy logic programming via multilattices

2007
Jesús Medina, Manuel Ojeda-Aciego, Jorge Ruiz-Calvi~no
Fuzzy Sets Syst. vol. 158 (6), pages 674–688.

Powersets of terms and composite monads

2007
Patrik Eklund, Maria A. Galán, Jesús Medina, Manuel Ojeda-Aciego, Agustín Valverde
Fuzzy Sets Syst. vol. 158 (23), pages 2552–2574.

Termination of logic programs with imperfect information: applications and query procedure

2007
Carlos Viegas Damásio, Jesús Medina, Manuel Ojeda-Aciego
J. Appl. Log. vol. 5 (3), pages 435–458.

A Multimodal Logic Approach to Order of Magnitude Qualitative Reasoning with Comparability and Negligibility Relations

2005
Alfredo Burrieza, Manuel Ojeda-Aciego
Fundam. Informaticae vol. 68 (1-2), pages 21–46.

Similarity-based unification: a multi-adjoint approach

2004
Jesús Medina, Manuel Ojeda-Aciego, Peter Vojtás
Fuzzy Sets Syst. vol. 146 (1), pages 43–62.

A neural implementation of multi-adjoint logic programming

2004
Jesús Medina, Enrique Mérida Casermeiro, Manuel Ojeda-Aciego
J. Appl. Log. vol. 2 (3), pages 301–324.

Similarities between powersets of terms

2004
Patrik Eklund, Maria A. Galán, Jesús Medina, Manuel Ojeda-Aciego, Agustín Valverde
Fuzzy Sets Syst. vol. 144 (1), pages 213–225.

Special issue: Guest Editorial [Computational and Mathematical Methods in Science and Engineering 2002 - Best Papers]

2003
Manuel Ojeda-Aciego, Peter Vojtás, Slawomir Zadrozny
Kybernetika vol. 39 (5), pages 509–510.

Preface

2002
Manuel Ojeda-Aciego, Gerhard Brewka, Inma P. de Guzmán, Luís Moniz Pereira
Stud Logica vol. 72 (1), pages 3–5.

Satisfiability Testing for Boolean Formulas Using Delta-trees

2002
Gloria Gutiérrez, Inma P. de Guzmán, Javier Martínez, Manuel Ojeda-Aciego, Agustín Valverde
Stud Logica vol. 72 (1), pages 85–112.

Reductions for non-clausal theorem proving

2001
Gabriel Aguilera, Inma P. de Guzmán, Manuel Ojeda-Aciego, Agustín Valverde
Theor. Comput. Sci. vol. 266 (1-2), pages 81–112.

Implicates and reduction techniques for temporal logics

1999
Inma P. de Guzmán, Manuel Ojeda-Aciego, Agustín Valverde
Ann. Math. Artif. Intell. vol. 27 (1-4), pages 3–23.

Reducing signed propositional formulas

1998
Gabriel Aguilera, Inma P. de Guzmán, Manuel Ojeda-Aciego, Agustín Valverde
Soft Comput. vol. 2 (4), pages 157–166.

A Formal Identification between Tuples and Lists with an Application to List-Arithmetic Categories

1995
Inma P. de Guzmán, Manuel Ojeda-Aciego, Agustín Valverde
Acta Informatica vol. 32 (1), pages 61–78.

Increasing the efficiency of automated theorem proving

1995
Gabriel Aguilera, Inma P. de Guzmán, Manuel Ojeda-Aciego
J. Appl. Non Class. Logics vol. 5 (1), pages 9–29.
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