Listar Artículos de revista DAC - AKS Aldizkari artikuluak por título
Mostrando ítems 60-79 de 81
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Paired structures in knowledge representation
Montero, Javier; Bustince Sola, Humberto
; Pagola Barrio, Miguel ; Fernández Fernández, Francisco Javier ; Barrenechea Tartas, Edurne (Elsevier, 2016)
Artículo / Artikulua 
In this position paper we propose a consistent and unifying view to all those basic knowledge representation models that are based on the existence of two somehow opposite fuzzy concepts. A number of these basic models can ... -
Parametric families of fuzzy consequence operators
Elorza Barbajero, Jorge ; Burillo López, Pedro (Universitat Politècnica de Catalunya, 2004)
Artículo / Artikulua
In a previous paper we explored the notion of coherent fuzzy consequence operator. Since we did not know of any example in the literature of non-coherent fuzzy consequence operator, we also showed several families of such ... -
A passive traffic algorithm for detecting unavailable periods in TCP services
Prieto Suárez, Iria; Izal Azcárate, Mikel ; Magaña Lizarrondo, Eduardo ; Morató Osés, Daniel (IARIA, 2015)
Artículo / Artikulua
This paper presents a simple passive algorithm to monitor service availability. The algorithm is based on packet counting over a passive traffic trace of a population of clients accessing servers of interest. The major ... -
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 ... -
Posibles nuevas vías de investigación en teoría de la comunicación a través de modelos matemáticos: análisis topológico
Corres Sanz, Jesús María ; Burillo López, Pedro (Centro de Investigaciones Sociológicas, 1978)
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Uno de los pocos puntos en los que los metodólogos de las ciencias sociales están de acuerdo es el divorcio existente entre trabajo teórico y trabajo metodológico en las prácticas sociales concretas. Por otro lado, para ... -
Positron emission tomography image segmentation based on atanassov's intuitionistic fuzzy sets
Couto, Pedro; Bento, Telmo; Bustince Sola, Humberto ; Melo-Pinto, Pedro (MDPI, 2022)
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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 ... -
Pre-aggregation functions: construction and an application
Lucca, Giancarlo; Sanz Delgado, José Antonio ; Pereira Dimuro, Graçaliz ; Bedregal, Benjamin ; Mesiar, Radko; Kolesárová, Anna; Bustince Sola, Humberto (IEEE, 2015)
Artículo / Artikulua
In this work we introduce the notion of preaggregation function. Such a function satisfies the same boundary conditions as an aggregation function, but, instead of requiring monotonicity, only monotonicity along some ... -
Quantitative feedback control of multiple input single output systems
Rico Azagra, Javier; Gil Martínez, Montserrat; Elso Torralba, Jorge (Hindawi, 2014)
Artículo / Artikulua
This paper presents a robust feedback control solution for systemswithmultiplemanipulated inputs and a singlemeasurable output. A structure of parallel controllers achieves robust stability and robust disturbance rejection. ... -
Router scheduling configuration based on the maximization of benefit and carried best effort traffic
Magaña Lizarrondo, Eduardo ; Morató Osés, Daniel ; Varaiya, Pravin (Kluwer Academic Publishers, 2003)
Artículo / Artikulua
This paper shows a configuration scheme for networks with WFQ schedulers. It guarantees maximum revenue for the service provider in the worst case of network congestion. We focus on best effort traffic and select those ... -
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 ... -
Some properties of implications via aggregation functions and overlap functions
Zapata, Hugo; Bustince Sola, Humberto ; Miguel Turullols, Laura de ; Guerra, Carlos (Taylor & Francis, 2014)
Artículo / Artikulua
In this work, using the identification between implication operators and aggregation functions, we study the implication operators that are recovered from overlap functions. In particular, we focus in which properties ... -
Stability of time-delay systems via Lyapunov functions
Alastruey Merino, Karlos ; Sen, Manuel de la (Hindawi Publishing Corporation, 2002)
Artículo / Artikulua
In this paper, a Lyapunov function candidate is introduced for multivariable systems with inner delays, without assuming a priori stability for the nondelayed subsystem. By using this Lyapunov function, a controller is ... -
The study of fuzzy context sequences
Alcalde, Cristina; Burusco Juandeaburre, Ana ; Fuentes González, Ramón (Atlantis Press and Taylor & Francis, 2013)
Artículo / Artikulua
In some cases, the relationship between an object set X and an attribute set Y is set up by means of a fuzzy context sequence. A particular case of this situation appears when we want to study the evolution of an L-fuzzy ... -
A survey of fingerprint classification Part I: taxonomies on feature extraction methods and learning models
Galar Idoate, Mikel ; Derrac, Joaquín; Peralta, Daniel; Triguero, Isaac; Paternain Dallo, Daniel ; López Molina, Carlos ; García, Salvador; Benítez, José Manuel; Pagola Barrio, Miguel ; Barrenechea Tartas, Edurne ; Bustince Sola, Humberto ; Herrera, Francisco (Elsevier, 2015)
Artículo / Artikulua
This paper reviews the fingerprint classification literature looking at the problem from a double perspective. We first deal with feature extraction methods, including the different models considered for singular point ... -
A survey of fingerprint classification Part II: experimental analysis and ensemble proposal
Galar Idoate, Mikel ; Derrac, Joaquín; Peralta, Daniel; Triguero, Isaac; Paternain Dallo, Daniel ; López Molina, Carlos ; García, Salvador; Benítez, José Manuel; Pagola Barrio, Miguel ; Barrenechea Tartas, Edurne ; Bustince Sola, Humberto ; Herrera, Francisco (Elsevier, 2015)
Artículo / Artikulua
In the first part of this paper we reviewed the fingerprint classification literature from two different perspectives: the feature extraction and the classifier learning. Aiming at answering the question of which among the ... -
A survey on fingerprint minutiae-based local matching for verification and identification: taxonomy and experimental evaluation
Peralta, Daniel; Galar Idoate, Mikel ; Triguero, Isaac; Paternain Dallo, Daniel ; García, Salvador; Barrenechea Tartas, Edurne ; Benítez, José Manuel; Bustince Sola, Humberto ; Herrera, Francisco (Elsevier, 2015)
Artículo / Artikulua
Fingerprint recognition has found a reliable application for verification or identification of people in biometrics. Globally, fingerprints can be viewed as valuable traits due to several perceptions observed by the experts; ... -
TBDClust: time-based density clustering to enable free browsing of sites in pay-per-use mobile Internet providers
Torres García, Luis Miguel; Magaña Lizarrondo, Eduardo ; Morató Osés, Daniel ; García-Jiménez, Santiago ; Izal Azcárate, Mikel (Elsevier, 2017)
Artículo / Artikulua
The World Wide Web has evolved rapidly, incorporating new content types and becoming more dynamic. The contents from a website can be distributed between several servers, and as a consequence, web traffic has become ... -
A theorem for constructing interval-valued intuitionistic fuzzy sets from intuitionistic fuzzy sets
Bustince Sola, Humberto ; Burillo López, Pedro (Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1995)
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In this paper we present a theorem that allows us to construct interval-valued intuitionistic fuzzy sets from intuitionistic fuzzy sets. We also study the way of recovering intuitionistic fuzzy sets used in the construction ... -
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 ... -
Unbalanced interval-valued OWA operators
Miguel Turullols, Laura de ; Bustince Sola, Humberto ; Barrenechea Tartas, Edurne ; Pagola Barrio, Miguel ; Fernández Fernández, Francisco Javier (Springer Berlin Heidelberg, 2016)
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In this work, we introduce a new class of functions defned on the interval-valued setting. These functions extend classical OWA operators but allow for diferent weighting vectors to handle the lower bounds and the ...
