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380 results on '"Dimuro, Graçaliz"'

1. A Generalization of the Sugeno integral to aggregate Interval-valued data: an application to Brain Computer Interface and Social Network Analysis

Author

Fumanal-Idocin, Javier, Takac, Zdenko, Horanska, Lubomira, Asmus, Thiago da Cruz, Vidaurre, Carmen, Dimuro, Graçaliz, Fernandez, Javier, and Bustince, Humberto

Subjects
Computer Science - Social and Information Networks
Abstract

Intervals are a popular way to represent the uncertainty related to data, in which we express the vagueness of each observation as the width of the interval. However, when using intervals for this purpose, we need to use the appropriate set of mathematical tools to work with. This can be problematic due to the scarcity and complexity of interval-valued functions in comparison with the numerical ones. In this work, we propose to extend a generalization of the Sugeno integral to work with interval-valued data. Then, we use this integral to aggregate interval-valued data in two different settings: first, we study the use of intervals in a brain-computer interface; secondly, we study how to construct interval-valued relationships in a social network, and how to aggregate their information. Our results show that interval-valued data can effectively model some of the uncertainty and coalitions of the data in both cases. For the case of brain-computer interface, we found that our results surpassed the results of other interval-valued functions.

Published
2023
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2. Analysis of Fuzzy Techniques in Edge Detection

Author

Silva, Miquéias Amorim Santos, Dimuro, Gracaliz P., Borges, Eduardo N., Lucca, Giancarlo, Marco-Detchart, Cedric, van der Aalst, Wil, Series Editor, Ram, Sudha, Series Editor, Rosemann, Michael, Series Editor, Szyperski, Clemens, Series Editor, Guizzardi, Giancarlo, Series Editor, Filipe, Joaquim, editor, Śmiałek, Michał, editor, Brodsky, Alexander, editor, and Hammoudi, Slimane, editor

Published
2024
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9. Motivation and Outline

Author

Kreinovich, Vladik, Dimuro, Graçaliz Pereira, da Rocha Costa, Antônio Carlos, Kacprzyk, Janusz, Series Editor, Kreinovich, Vladik, Dimuro, Graçaliz Pereira, and da Rocha Costa, Antônio Carlos

Published
2023
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11. Properties of Physical Quantities

Author

Kreinovich, Vladik, Dimuro, Graçaliz Pereira, da Rocha Costa, Antônio Carlos, Kacprzyk, Janusz, Series Editor, Kreinovich, Vladik, Dimuro, Graçaliz Pereira, and da Rocha Costa, Antônio Carlos

Published
2023
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12. The Concept of Semantic Value in Social Network Analysis: an Application to Comparative Mythology

Author

Fumanal-Idocin, Javier, Cordón, Oscar, Dimuro, Graçaliz, Minárová, María, and Bustince, Humberto

Subjects
Computer Science - Social and Information Networks, Computer Science - Computation and Language
Abstract

Human sciences have traditionally relied on human reasoning and intelligence to infer knowledge from a wide range of sources, such as oral and written narrations, reports, and traditions. Here we develop an extension of classical social network analysis approaches to incorporate the concept of meaning in each actor, as a mean to quantify and infer further knowledge from the original source of the network. This extension is based on a new affinity function, the semantic affinity, that establishes fuzzy-like relationships between the different actors in the network, using combinations of affinity functions. We also propose a new heuristic algorithm based on the shortest capacity problem to compute this affinity function. We use these concept of meaning and semantic affinity to analyze and compare the gods and heroes from three different classical mythologies: Greek, Celtic and Nordic. We study the relationships of each individual mythology and those of common structure that is formed when we fuse the three of them. We show a strong connection between the Celtic and Nordic gods and that Greeks put more emphasis on heroic characters rather than deities. Our approach provides a technique to highlight and quantify important relationships in the original domain of the network not deducible from its structural properties.

Published
2021

13. Towards interval uncertainty propagation control in bivariate aggregation processes and the introduction of width-limited interval-valued overlap functions

Author

Asmus, Tiago da Cruz, Dimuro, Graçaliz Pereira, Bedregal, Benjamín, Sanz, José Antonio, Mesiar, Radko, and Bustince, Humberto

Subjects
Computer Science - Artificial Intelligence
Abstract

Overlap functions are a class of aggregation functions that measure the overlapping degree between two values. Interval-valued overlap functions were defined as an extension to express the overlapping of interval-valued data, and they have been usually applied when there is uncertainty regarding the assignment of membership degrees. The choice of a total order for intervals can be significant, which motivated the recent developments on interval-valued aggregation functions and interval-valued overlap functions that are increasing to a given admissible order, that is, a total order that refines the usual partial order for intervals. Also, width preservation has been considered on these recent works, in an intent to avoid the uncertainty increase and guarantee the information quality, but no deeper study was made regarding the relation between the widths of the input intervals and the output interval, when applying interval-valued functions, or how one can control such uncertainty propagation based on this relation. Thus, in this paper we: (i) introduce and develop the concepts of width-limited interval-valued functions and width limiting functions, presenting a theoretical approach to analyze the relation between the widths of the input and output intervals of bivariate interval-valued functions, with special attention to interval-valued aggregation functions; (ii) introduce the concept of $(a,b)$-ultramodular aggregation functions, a less restrictive extension of one-dimension convexity for bivariate aggregation functions, which have an important predictable behaviour with respect to the width when extended to the interval-valued context; (iii) define width-limited interval-valued overlap functions, taking into account a function that controls the width of the output interval; (iv) present and compare three construction methods for these width-limited interval-valued overlap functions., Comment: submitted

Published
2021

14. Admissible OWA operators for fuzzy numbers

Author

García-Zamora, Diego, Cruz, Anderson, Neres, Fernando, Santiago, Regivan H.N., Roldán López de Hierro, Antonio F., Paiva, Rui, Dimuro, Graçaliz. P., Martínez, Luis, Bedregal, Benjamín, and Bustince, Humberto

Published
2024
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15. Neuro-inspired edge feature fusion using Choquet integrals

Author

Marco-Detchart, Cedric, Lucca, Giancarlo, Lopez-Molina, Carlos, De Miguel, Laura, Dimuro, Graçaliz Pereira, and Bustince, Humberto

Subjects
Computer Science - Computer Vision and Pattern Recognition, Computer Science - Artificial Intelligence, Computer Science - Machine Learning
Abstract

It is known that the human visual system performs a hierarchical information process in which early vision cues (or primitives) are fused in the visual cortex to compose complex shapes and descriptors. While different aspects of the process have been extensively studied, as the lens adaptation or the feature detection, some other,as the feature fusion, have been mostly left aside. In this work we elaborate on the fusion of early vision primitives using generalizations of the Choquet integral, and novel aggregation operators that have been extensively studied in recent years. We propose to use generalizations of the Choquet integral to sensibly fuse elementary edge cues, in an attempt to model the behaviour of neurons in the early visual cortex. Our proposal leads to a full-framed edge detection algorithm, whose performance is put to the test in state-of-the-art boundary detection datasets.

Published
2021
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16. Fuzzy implication functions constructed from general overlap functions and fuzzy negations

Author

Pinheiro, Jocivania, Bedregal, Benjamin, Santiago, Regivan H. N., Santos, Helida, Dimuro, Graçaliz P., and Bustince, Humberto

Subjects
Mathematics - General Mathematics
Abstract

Fuzzy implication functions have been widely investigated, both in theoretical and practical fields. The aim of this work is to continue previous works related to fuzzy implications constructed by means of non necessarily associative aggregation functions. In order to obtain a more general and flexible context, we extend the class of implications derived by fuzzy negations and t-norms, replacing the latter by general overlap functions. We also investigate their properties, characterization and intersections with other classes of fuzzy implication functions.

Published
2021

17. d-CC Integrals: Generalizing CC-Integrals by Restricted Dissimilarity Functions with Applications to Fuzzy-Rule Based Systems

Author

Sartori, Joelson, Lucca, Giancarlo, Asmus, Tiago, Santos, Helida, Borges, Eduardo, Bedregal, Benjamin, Bustince, Humberto, Dimuro, Graçaliz Pereira, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Naldi, Murilo C., editor, and Bianchi, Reinaldo A. C., editor

Published
2023
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20. Future Work

Author

Kreinovich, Vladik, Dimuro, Graçaliz Pereira, da Rocha Costa, Antônio Carlos, Kacprzyk, Janusz, Series Editor, Kreinovich, Vladik, Dimuro, Graçaliz Pereira, and da Rocha Costa, Antônio Carlos

Published
2023
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24. Application of the Sugeno Integral in Fuzzy Rule-Based Classification

Author

Wieczynski, Jonata, Lucca, Giancarlo, Borges, Eduardo, Dimuro, Graçaliz, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Xavier-Junior, João Carlos, editor, and Rios, Ricardo Araújo, editor

Published
2022
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25. Application and Comparison of CC-Integrals in Business Group Decision Making

Author

Wieczynski, Jonata, Lucca, Giancarlo, Borges, Eduardo, Dimuro, Graçaliz, Lourenzutti, Rodolfo, Bustince, Humberto, van der Aalst, Wil, Series Editor, Mylopoulos, John, Series Editor, Ram, Sudha, Series Editor, Rosemann, Michael, Series Editor, Szyperski, Clemens, Series Editor, Filipe, Joaquim, editor, Śmiałek, Michał, editor, Brodsky, Alexander, editor, and Hammoudi, Slimane, editor

Published
2022
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26. On Construction Methods of (Interval-Valued) General Grouping Functions

Author

Dimuro, Graçaliz P., Asmus, Tiago, Pinheiro, Jocivania, Santos, Helida, Borges, Eduardo, Lucca, Giancarlo, Rodriguez-Martinez, Iosu, Mesiar, Radko, Bustince, Humberto, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Ciucci, Davide, editor, Couso, Inés, editor, Medina, Jesús, editor, Ślęzak, Dominik, editor, Petturiti, Davide, editor, Bouchon-Meunier, Bernadette, editor, and Yager, Ronald R., editor

Published
2022
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33. Future Work

Author

Kreinovich, Vladik, primary, Dimuro, Graçaliz Pereira, additional, and da Rocha Costa, Antônio Carlos, additional

Published
2022
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42. On the Generalizations of the Choquet Integral for Application in FRBCs

Author

Lucca, Giancarlo, Borges, Eduardo N., Berri, Rafael A., Emmendorfer, Leonardo, Dimuro, Graçaliz P., Asmus, Tiago C., Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Britto, André, editor, and Valdivia Delgado, Karina, editor

Published
2021
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44. A Tool for Analyzing Academic Genealogy

Author

Madeira, Gabriel, Borges, Eduardo N., Lucca, Giancarlo, Santos, Helida, Dimuro, Graçaliz, van der Aalst, Wil, Series Editor, Mylopoulos, John, Series Editor, Rosemann, Michael, Series Editor, Shaw, Michael J., Series Editor, Szyperski, Clemens, Series Editor, Filipe, Joaquim, editor, Śmiałek, Michał, editor, Brodsky, Alexander, editor, and Hammoudi, Slimane, editor

Published
2020
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45. Dissimilarity Based Choquet Integrals

Author

Bustince, Humberto, Mesiar, Radko, Fernandez, Javier, Galar, Mikel, Paternain, Daniel, Altalhi, Abdulrahman, Dimuro, Graçaliz P., Bedregal, Benjamín, Takáč, Zdenko, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Kotenko, Igor, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Lesot, Marie-Jeanne, editor, Vieira, Susana, editor, Reformat, Marek Z., editor, Carvalho, João Paulo, editor, Wilbik, Anna, editor, Bouchon-Meunier, Bernadette, editor, and Yager, Ronald R., editor

Published
2020
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46. General Grouping Functions

Author

Santos, Helida, Dimuro, Graçaliz P., Asmus, Tiago C., Lucca, Giancarlo, Borges, Eduardo N., Bedregal, Benjamin, Sanz, José A., Fernández, Javier, Bustince, Humberto, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Kotenko, Igor, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Lesot, Marie-Jeanne, editor, Vieira, Susana, editor, Reformat, Marek Z., editor, Carvalho, João Paulo, editor, Wilbik, Anna, editor, Bouchon-Meunier, Bernadette, editor, and Yager, Ronald R., editor

Published
2020
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47. An Alternative to Power Measure for Fuzzy Rule-Based Classification Systems

Author

Tiggemann, Frederico B., Pernambuco, Bryan G., Lucca, Giancarlo, Borges, Eduardo N., Santos, Helida, Dimuro, Graçaliz P., Sanz, José A., Bustince, Humberto, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Cerri, Ricardo, editor, and Prati, Ronaldo C., editor

Published
2020
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48. A Fuzzy Reasoning Method Based on Ensembles of Generalizations of the Choquet Integral

Author

Lucca, Giancarlo, Borges, Eduardo N., Santos, Helida, Dimuro, Graçaliz P., Asmus, Tiago C., Sanz, José A., Bustince, Humberto, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Cerri, Ricardo, editor, and Prati, Ronaldo C., editor

Published
2020
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49. A Novel Formulation for Inverse Distance Weighting from Weighted Linear Regression

Author

Emmendorfer, Leonardo Ramos, Dimuro, Graçaliz Pereira, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Krzhizhanovskaya, Valeria V., editor, Závodszky, Gábor, editor, Lees, Michael H., editor, Dongarra, Jack J., editor, Sloot, Peter M. A., editor, Brissos, Sérgio, editor, and Teixeira, João, editor

Published
2020
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50. Generalized Interval-valued OWA Operators with Interval Weights Derived from Interval-valued Overlap Functions

Author

Bedregal, Benjamin, Bustince, Humberto, Palmeira, Eduardo, Dimuro, Graçaliz Pereira, and Fernandez, Javier

Subjects
Computer Science - Artificial Intelligence
Abstract

In this work we extend to the interval-valued setting the notion of an overlap functions and we discuss a method which makes use of interval-valued overlap functions for constructing OWA operators with interval-valued weights. . Some properties of interval-valued overlap functions and the derived interval-valued OWA operators are analysed. We specially focus on the homogeneity and migrativity properties.

Published
2016
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