A conversational recommender system for diagnosis using fuzzy rules

P Cordero, M Enciso, D López, A Mora - Expert Systems with Applications, 2020 - Elsevier
Graded implications in the framework of Fuzzy Formal Concept Analysis are used as the
knowledge guiding the recommendations. An automated engine based on fuzzy …

[HTML][HTML] Simplification logic for the management of unknown information

F Pérez-Gámez, P Cordero, M Enciso, Á Mora - Information Sciences, 2023 - Elsevier
This paper aims to contribute to the extension of classical Formal Concept Analysis (FCA),
allowing the management of unknown information. In a preliminary paper, we define a new …

Parameterized simplification logic I: reasoning with implications and classes of closure operators

P Cordero, M Enciso, A Mora… - International Journal of …, 2020 - Taylor & Francis
In this paper, we present a general inference system for reasoning with if-then rules. They
are defined using general lattice-theoretic notions and their semantics is defined using …

Data mining algorithms to compute mixed concepts with negative attributes: an application to breast cancer data analysis

JM Rodríguez‐Jiménez, P Cordero… - … Methods in the …, 2016 - Wiley Online Library
In the design of mathematical methods for a medical problem, one of the kernel issues is the
identification of symptoms and measures that could help in the diagnosis. Discovering …

A systems-theoretical formalization of closed systems

N Shadab, T Cody, A Salado… - IEEE Open Journal of …, 2024 - ieeexplore.ieee.org
There is a lack of formalism for some key foundational concepts in systems engineering.
One of the most recently acknowledged deficits is the inadequacy of systems engineering …

[PDF][PDF] fcaR, Formal Concept Analysis with R.

P Cordero, M Enciso, D López-Rodríguez, Á Mora - R Journal, 2022 - journal.r-project.org
Formal concept analysis (FCA) is a solid mathematical framework to manage information
based on logic and lattice theory. It defines two explicit representations of the knowledge …

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

P Cordero, M Enciso, A Mora, M Ojeda-Aciego… - Knowledge-Based …, 2015 - Elsevier
This work can be seen as a contribution to the area of social network analysis. By
considering Formal Concept Analysis (FCA) as the underlying formalizing tool, we use logic …

[PDF][PDF] Computing Minimal Generators from Implications: a Logic-guided Approach.

P Cordero, M Enciso, Á Mora, M Ojeda-Aciego - CLA, 2012 - Citeseer
Sets of attribute implications may have a certain degree of redundancy and the notion of
basis appears as a way to characterize the implication set with less redundancy. The most …

Simplifying implications with positive and negative attributes: a logic-based approach

F Pérez-Gámez, D López-Rodríguez, P Cordero… - Mathematics, 2022 - mdpi.com
Concepts and implications are two facets of the knowledge contained within a binary
relation between objects and attributes. Simplification logic (SL) has proved to be valuable …

LinCbO: Fast algorithm for computation of the Duquenne-Guigues basis

R Janostik, J Konecny, P Krajča - Information Sciences, 2021 - Elsevier
We propose and evaluate a novel algorithm for computation of the Duquenne-Guigues basis
which combines Close-by-One and LinClosure algorithms. This combination enables us to …