Listar Dpto. Automática y Computación - Automatika eta Konputazioa Saila por fecha de publicación
Mostrando ítems 1-20 de 143
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Positron emission tomography image segmentation based on atanassov's intuitionistic fuzzy sets
Couto, Pedro; Bento, Telmo; Bustince Sola, Humberto
; Melo-Pinto, Pedro (MDPI, 2022)
Artículo / Artikulua 
In this paper, we present an approach to fully automate tumor delineation in positron emission tomography (PET) images. PET images play a major role in medicine for in vivo imaging in oncology (PET images are used to ... -
d-XC integrals: on the generalization of the expanded form of the Choquet integral by restricted dissimilarity functions and their applications
Wieczynski, Jonata; Fumanal Idocin, Javier ; Lucca, Giancarlo; Borges, Eduardo N.; Asmus, Tiago ; Emmendorfer, Leonardo R.; Bustince Sola, Humberto ; Pereira Dimuro, Graçaliz (IEEE, 2022)
Artículo / Artikulua
Restricted dissimilarity functions (RDFs) were introduced to overcome problems resulting from the adoption of the standard difference. Based on those RDFs, Bustince et al. introduced a generalization of the Choquet integral ... -
Is the phenotype designation by PSP-MDS criteria stable throughout the disease course and consistent with tau distribution?
Sánchez Ruiz de Gordoa, Javier ; Zelaya Huerta, María Victoria ; Tellechea-Aramburo, Paula; Acha Santamaría, Blanca ; Roldán, Miren; López Molina, Carlos ; Coca, Valle; Galbete Jiménez, Arkaitz ; Mendióroz Iriarte, Maite; Erro, M. Elena (Frontiers Media, 2022)
Artículo / Artikulua
Introduction: the MDS-PSP criteria have shown high sensitivity for the PSP diagnosis, but do not discriminate the phenotype diversity. Our purpose was to search for anatomopathological differences among PSP phenotypes ... -
EUSC: a clustering-based surrogate model to accelerate evolutionary undersampling in imbalanced classification
Le, Hoang Lam; Landa-Silva, Darío; Galar Idoate, Mikel ; García, Salvador; Triguero, Isaac (Elsevier, 2021)
Artículo / Artikulua
Learning from imbalanced datasets is highly demanded in real-world applications and a challenge for standard classifiers that tend to be biased towards the classes with the majority of the examples. Undersampling approaches ... -
General overlap functions
Miguel Turullols, Laura de ; Gómez, Daniel; Tinguaro, Javier; Montero, Javier; Bustince Sola, Humberto ; Pereira Dimuro, Graçaliz ; Sanz, Jose Antonio (Elsevier, 2019)
Artículo / Artikulua
As a generalization of bivariate overlap functions, which measure the degree of overlapping (intersection for non-crisp sets) of n different classes, in this paper we introduce the concept of general overlap functions. We ... -
New measures for comparing matrices and their application to image processing
Sesma Sara, Mikel ; Miguel Turullols, Laura de ; Pagola Barrio, Miguel ; Burusco Juandeaburre, Ana ; Mesiar, Radko; Bustince Sola, Humberto (Elsevier, 2018)
Artículo / Artikulua
In this work we present the class of matrix resemblance functions, i.e., functions that measure the difference between two matrices. We present two construction methods and study the properties that matrix resemblance ... -
Application of two different methods for extending lattice-valued restricted equivalence functions used for constructing similarity measures on L-fuzzy sets
Palmeira, Eduardo S.; Bedregal, Benjamin ; Bustince Sola, Humberto ; Paternain Dallo, Daniel ; Miguel Turullols, Laura de (Elsevier, 2018)
Artículo / Artikulua
Based on previous investigations, we have proposed two different methods to extend lattice-valued fuzzy connectives (t-norms, t-conorms, negations and implications) and other related operators, considering a generalized ... -
Multivalued contexts associated with criteria
Alcalde, Cristina; Burusco Juandeaburre, Ana (Taylor & Francis, 2018)
Artículo / Artikulua
We are interested in the study of L-fuzzy contexts taking into account different criteria. These contexts arise when we want to analyze the relationship between objects and attributes from different points of view. ... -
Convolution lattices
Miguel Turullols, Laura de ; Bustince Sola, Humberto ; Baets, Bernard de (Elsevier, 2018)
Artículo / Artikulua
We propose two convolution operations on the set of functions between two bounded lattices and investigate the algebraic structure they constitute, in particular the lattice laws they satisfy. Each of these laws requires ... -
Novel methodologies for improving fuzzy classifiers: dealing with multi-class and Big Data classification problems
Elkano Ilintxeta, Mikel (2018)
Tesis doctoral / Doktoretza tesia
Los Sistemas de Clasificación Basados en Reglas Difusas (SCBRDs) son métodos de aprendizaje automático que permiten construir modelos predictivos capaces de predecir la clase a la que pertenecen los datos de entrada. La ... -
Online detection of pathological TCP flows with retransmissions in high-speed networks
Miravalls-Sierra, Eduardo; Muelas, David; Ramos, Javier; López de Vergara, Jorge E.; Morató Osés, Daniel ; Aracil Rico, Javier (Elsevier, 2018)
Artículo / Artikulua
Online Quality of Service (QoS) assessment in high speed networks is one of the key concerns for service providers, namely to detect QoS degradation on-the-fly as soon as possible and avoid customers’ complaints. In this ... -
Aggregation and pre-aggregation functions in fuzzy rule-based classification systems
(2018) Tesis doctoral / Doktoretza tesia
Una manera eficiente de tratar problemas de clasificación, entre otras, es el uso de Sistemas de Clasificación Basados en Reglas Difusas (SCBRDs). Estos sistemas están compuestos por dos componentes principales, la Base ... -
Pointwise aggregation of maps: its structural functional equation and some applications to social choice theory
Miguel Turullols, Laura de ; Campión Arrastia, María Jesús ; Candeal, Juan Carlos; Induráin Eraso, Esteban ; Paternain Dallo, Daniel (Elsevier, 2017)
Artículo / Artikulua
We study a structural functional equation that is directly related to the pointwise aggregation of a finite number of maps from a given nonempty set into another. First we establish links between pointwise aggregation and ... -
Type-2 fuzzy entropy-sets
Miguel Turullols, Laura de ; Santos, Helida; Sesma Sara, Mikel ; Bedregal, Benjamin ; Jurío Munárriz, Aránzazu ; Bustince Sola, Humberto (IEEE, 2017)
Artículo / Artikulua
The final goal of this study is to adapt the concept of fuzzy entropy of De Luca and Termini to deal with Type-2 Fuzzy Sets. We denote this concept Type-2 Fuzzy Entropy-Set. However, the construction of the notion of ... -
An algorithm for group decision making using n -dimensional fuzzy sets, admissible orders and OWA operators
Miguel Turullols, Laura de ; Sesma Sara, Mikel ; Elkano Ilintxeta, Mikel ; Asiain Ollo, María José ; Bustince Sola, Humberto (Elsevier, 2017)
Artículo / Artikulua
In this paper we propose an algorithm to solve group decision making problems using n -dimensional fuzzy sets, namely, sets in which the membership degree of each element to the set is given by an in- creasing tuple of n ... -
Some characterizations of lattice OWA operators
Miguel Turullols, Laura de ; Paternain Dallo, Daniel ; Lizasoain Iriso, María Inmaculada ; Ochoa Lezaun, Gustavo ; Bustince Sola, Humberto (World Scientific Publishing Company, 2017)
Artículo / Artikulua
Ordered Weighted Averaging (OWA) operators are a family of aggregation which fusion data. If the data are real numbers, then OWA operators can be characterized either as an special kind of Choquet integral or simply as an ... -
Binary relations coming from solutions of functional equations: orderings and fuzzy subsets
Campión Arrastia, María Jesús ; Miguel Turullols, Laura de ; García Catalán, Olga Raquel ; Induráin Eraso, Esteban ; Abrísqueta Usaola, Francisco Javier (World Scientific Publishing Company, 2017)
Artículo / Artikulua
We analyze the main properties of binary relations, defined on a nonempty set, that arise in a natural way when dealing with real-valued functions that satisfy certain classical functional equations on two variables. We ... -
Linking mathematical morphology and L-fuzzy concepts
Alcalde, Cristina; Burusco Juandeaburre, Ana ; Bustince Sola, Humberto ; Fuentes González, Ramón ; Sesma Sara, Mikel (World Scientific, 2017)
Artículo / Artikulua
In this paper we study the relation between L-fuzzy morphology and L-fuzzy concepts over complete lattices. In particular, we show how the erosion and dilation operators of the former can be understood in terms of the ... -
Fuzzy concept lattices and fuzzy relation equations in the retrieval processing of images and signals
Alcalde, Cristina; Burusco Juandeaburre, Ana ; Díaz Moreno, Juan Carlos; Medina, Jesús (World Scientific, 2017)
Artículo / Artikulua
This paper considers the introduced relations between fuzzy property-oriented concept lattices and fuzzy relation equations, on the one hand, and mathematical morphology, on the other hand, in the retrieval processing ... -
Computing with uncertainty truth degrees: a convolution-based degrees
Miguel Turullols, Laura de (2017)
Tesis doctoral / Doktoretza tesia
La teoría de los conjuntos difusos puede contemplarse como un conjunto de herramientas matemáticas excepcionalmente adaptadas para trabajar con información incompleta, falta de nitidez e incertidumbre no aleatoria. De ...
