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240 results on '"De Leone, Renato"'

1. Robust Twin Parametric Margin Support Vector Machine for Multiclass Classification

Author

De Leone, Renato, Maggioni, Francesca, and Spinelli, Andrea

Subjects
Computer Science - Machine Learning, Mathematics - Optimization and Control
Abstract

In this paper, we present novel Twin Parametric Margin Support Vector Machine (TPMSVM) models to tackle the problem of multiclass classification. We explore the cases of linear and nonlinear classifiers and propose two possible alternatives for the final decision function. Since real-world observations are plagued by measurement errors and noise, data uncertainties need to be considered in the optimization models. For this reason, we construct bounded-by-norm uncertainty sets around each sample and derive the robust counterpart of deterministic models by means of robust optimization techniques. Finally, we test the proposed TPMSVM methodology on real-world datasets, showing the good performance of the approach.

Published
2023

2. A Multiclass Robust Twin Parametric Margin Support Vector Machine with an Application to Vehicles Emissions

Author

De Leone, Renato, Maggioni, Francesca, Spinelli, Andrea, 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, Nicosia, Giuseppe, editor, Ojha, Varun, editor, La Malfa, Emanuele, editor, La Malfa, Gabriele, editor, Pardalos, Panos M., editor, and Umeton, Renato, editor

Published
2024
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3. Comparison of High-Dimensional Bayesian Optimization Algorithms on BBOB

Author

Santoni, Maria Laura, Raponi, Elena, De Leone, Renato, and Doerr, Carola

Subjects
Computer Science - Machine Learning, Mathematics - Optimization and Control, Statistics - Machine Learning
Abstract

Bayesian Optimization (BO) is a class of black-box, surrogate-based heuristics that can efficiently optimize problems that are expensive to evaluate, and hence admit only small evaluation budgets. BO is particularly popular for solving numerical optimization problems in industry, where the evaluation of objective functions often relies on time-consuming simulations or physical experiments. However, many industrial problems depend on a large number of parameters. This poses a challenge for BO algorithms, whose performance is often reported to suffer when the dimension grows beyond 15 variables. Although many new algorithms have been proposed to address this problem, it is not well understood which one is the best for which optimization scenario. In this work, we compare five state-of-the-art high-dimensional BO algorithms, with vanilla BO and CMA-ES on the 24 BBOB functions of the COCO environment at increasing dimensionality, ranging from 10 to 60 variables. Our results confirm the superiority of BO over CMA-ES for limited evaluation budgets and suggest that the most promising approach to improve BO is the use of trust regions. However, we also observe significant performance differences for different function landscapes and budget exploitation phases, indicating improvement potential, e.g., through hybridization of algorithmic components.

Published
2023

4. Machine Learning Model for Student Drop-Out Prediction Based on Student Engagement

Author

Brezočnik, Lucija, Nalli, Giacomo, De Leone, Renato, Val, Sonia, Podgorelec, Vili, Karakatič, Sašo, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Karabegovic, Isak, editor, Kovačević, Ahmed, editor, and Mandzuka, Sadko, editor

Published
2023
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5. The Use of Infinities and Infinitesimals for Sparse Classification Problems

Author

De Leone, Renato, Egidi, Nadaniela, Fatone, Lorella, Zelinka, Ivan, Series Editor, Adamatzky, Andrew, Series Editor, Chen, Guanrong, Series Editor, Abraham, Ajith, Editorial Board Member, Lucia, Ana, Editorial Board Member, Burguillo, Juan C., Editorial Board Member, Čelikovský, Sergej, Editorial Board Member, Chadli, Mohammed, Editorial Board Member, Corchado, Emilio, Editorial Board Member, Davendra, Donald, Editorial Board Member, Ilachinski, Andrew, Editorial Board Member, Lampinen, Jouni, Editorial Board Member, Middendorf, Martin, Editorial Board Member, Ott, Edward, Editorial Board Member, Pan, Linqiang, Editorial Board Member, Păun, Gheorghe, Editorial Board Member, Richter, Hendrik, Editorial Board Member, Rodriguez-Aguilar, Juan A., Editorial Board Member, Rössler, Otto, Editorial Board Member, Snasel, Vaclav, Editorial Board Member, Sergeyev, Yaroslav D., Editorial Board Member, Vondrák, Ivo, Editorial Board Member, Zenil, Hector, Editorial Board Member, and De Leone, Renato, editor

Published
2022
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6. Nonlinear Optimization: A Brief Overview

Author

De Leone, Renato, Zelinka, Ivan, Series Editor, Adamatzky, Andrew, Series Editor, Chen, Guanrong, Series Editor, Abraham, Ajith, Editorial Board Member, Lucia, Ana, Editorial Board Member, Burguillo, Juan C., Editorial Board Member, Čelikovský, Sergej, Editorial Board Member, Chadli, Mohammed, Editorial Board Member, Corchado, Emilio, Editorial Board Member, Davendra, Donald, Editorial Board Member, Ilachinski, Andrew, Editorial Board Member, Lampinen, Jouni, Editorial Board Member, Middendorf, Martin, Editorial Board Member, Ott, Edward, Editorial Board Member, Pan, Linqiang, Editorial Board Member, Păun, Gheorghe, Editorial Board Member, Richter, Hendrik, Editorial Board Member, Rodriguez-Aguilar, Juan A., Editorial Board Member, Rössler, Otto, Editorial Board Member, Snasel, Vaclav, Editorial Board Member, Sergeyev, Yaroslav D., Editorial Board Member, Vondrák, Ivo, Editorial Board Member, Zenil, Hector, Editorial Board Member, and De Leone, Renato, editor

Published
2022
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7. The Role of grossone in Nonlinear Programming and Exact Penalty Methods

Author

De Leone, Renato, Zelinka, Ivan, Series Editor, Adamatzky, Andrew, Series Editor, Chen, Guanrong, Series Editor, Abraham, Ajith, Editorial Board Member, Lucia, Ana, Editorial Board Member, Burguillo, Juan C., Editorial Board Member, Čelikovský, Sergej, Editorial Board Member, Chadli, Mohammed, Editorial Board Member, Corchado, Emilio, Editorial Board Member, Davendra, Donald, Editorial Board Member, Ilachinski, Andrew, Editorial Board Member, Lampinen, Jouni, Editorial Board Member, Middendorf, Martin, Editorial Board Member, Ott, Edward, Editorial Board Member, Pan, Linqiang, Editorial Board Member, Păun, Gheorghe, Editorial Board Member, Richter, Hendrik, Editorial Board Member, Rodriguez-Aguilar, Juan A., Editorial Board Member, Rössler, Otto, Editorial Board Member, Snasel, Vaclav, Editorial Board Member, Sergeyev, Yaroslav D., Editorial Board Member, Vondrák, Ivo, Editorial Board Member, Zenil, Hector, Editorial Board Member, and De Leone, Renato, editor

Published
2022
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11. BinarySDG: binary sensor data generation with R

Author

Piangerelli, Marco, Rocchetti, Giacomo, Liscio, Alessandro, and De Leone, Renato

Subjects
Computer Science - Other Computer Science
Abstract

The scarcity of Smart Home data is still a pretty big problem, and in a world where the size of a dataset can often make the difference between a poor performance and a good performance for problems related to machine learning projects, this needs to be resolved. But whereas the problem of retrieving real data can't really be resolved, as most of the time the process of installing sensors and retrieving data can be found to be really expensive and time-consuming, we need to find a faster and easier solution, which is where synthetic data comes in. Here we propose BinarySDG (Binary Synthetic Data Generator) as a flexible and easy way to generate synthetic data for binary sensors.

Published
2019

12. Improved Migrating Birds Optimization Algorithm to Solve Hybrid Flowshop Scheduling Problem with Lot-Streaming of Random Breakdown

Author

Wang, Ping, De Leone, Renato, Sang, Hongyan, 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, Nicosia, Giuseppe, editor, Ojha, Varun, editor, La Malfa, Emanuele, editor, La Malfa, Gabriele, editor, Jansen, Giorgio, editor, Pardalos, Panos M., editor, Giuffrida, Giovanni, editor, and Umeton, Renato, editor

Published
2022
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17. Optimal Cluster Head Rotation for Heterogeneous WSNs

Author

De Leone, Renato, Mostarda, Leonardo, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Barolli, Leonard, editor, Amato, Flora, editor, Moscato, Francesco, editor, Enokido, Tomoya, editor, and Takizawa, Makoto, editor

Published
2020
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18. Multi-kernel Covariance Terms in Multi-output Support Vector Machines

Author

Marcelli, Elisa, De Leone, Renato, 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, Nicosia, Giuseppe, editor, Ojha, Varun, editor, La Malfa, Emanuele, editor, Jansen, Giorgio, editor, Sciacca, Vincenzo, editor, Pardalos, Panos, editor, Giuffrida, Giovanni, editor, and Umeton, Renato, editor

Published
2020
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19. Electre Tri-Machine Learning Approach to the Record Linkage Problem

Author

De Leone, Renato and Minnetti, Valentina

Subjects
Statistics - Machine Learning, Computer Science - Learning
Abstract

In this short paper, the Electre Tri-Machine Learning Method, generally used to solve ordinal classification problems, is proposed for solving the Record Linkage problem. Preliminary experimental results show that, using the Electre Tri method, high accuracy can be achieved and more than 99% of the matches and nonmatches were correctly identified by the procedure.

Published
2015

20. Infinite Kernel Extreme Learning Machine

Author

Marcelli, Elisa, De Leone, Renato, Vigo, Daniele, Editor-in-Chief, Agnetis, Alessandro, Series Editor, Amaldi, Edoardo, Series Editor, Guerriero, Francesca, Series Editor, Lucidi, Stefano, Series Editor, Messina, Enza, Series Editor, Sforza, Antonio, Series Editor, Paolucci, Massimo, editor, Sciomachen, Anna, editor, and Uberti, Pierpaolo, editor

Published
2019
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21. How Grossone Can Be Helpful to Iteratively Compute Negative Curvature Directions

Author

De Leone, Renato, Fasano, Giovanni, Roma, Massimo, Sergeyev, Yaroslav D., Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Battiti, Roberto, editor, Brunato, Mauro, editor, Kotsireas, Ilias, editor, and Pardalos, Panos M., editor

Published
2019
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24. Electre Tri Machine Learning Approach to the Record Linkage

Author

Minnetti, Valentina, De Leone, Renato, Baier, Daniel, Series Editor, Gaul, Wolfgang, Editor-in-Chief, Vichi, Maurizio, Editor-in-Chief, Critchley, Frank, Series Editor, Decker, Reinhold, Series Editor, Diday, Edwin, Series Editor, Greenacre, Michael, Series Editor, Lauro, Carlo Natale, Series Editor, Meulman, Jacqueline, Series Editor, Monari, Paola, Series Editor, Nishisato, Shizuhiko, Series Editor, Ohsumi, Noboru, Series Editor, Opitz, Otto, Series Editor, Ritter, Gunter, Series Editor, Schader, Martin, Series Editor, Weihs, Claus, Editor-in-Chief, Mola, Francesco, editor, and Conversano, Claudio, editor

Published
2018
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25. The use of Grossone in Mathematical Programming and Operations Research

Author

De Cosmis, Sonia and De Leone, Renato

Subjects
Mathematics - Optimization and Control
Abstract

The concepts of infinity and infinitesimal in mathematics date back to anciens Greek and have always attracted great attention. Very recently, a new methodology has been proposed by Sergeyev for performing calculations with infinite and infinitesimal quantities, by introducing an infinite unit of measure expressed by the numeral grossone. An important characteristic of this novel approach is its attention to numerical aspects. In this paper we will present some possible applications and use of grossone in Operations Research and Mathematical Programming. In particular, we will show how the use of grossone can be beneficial in anti--cycling procedure for the well-known simplex method for solving Linear Programming Problems and in defining exact differentiable Penalty Functions in Nonlinear Programming.

Published
2011

30. Preference Queries with Ceteris Paribus Semantics for Linked Data

Author

Rosati, Jessica, Di Noia, Tommaso, Lukasiewicz, Thomas, De Leone, Renato, Maurino, Andrea, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Debruyne, Christophe, editor, Panetto, Hervé, editor, Meersman, Robert, editor, Dillon, Tharam, editor, Weichhart, Georg, editor, An, Yuan, editor, and Ardagna, Claudio Agostino, editor

Published
2015
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34. Six-Month Synbio® Administration Affects Nutritional and Inflammatory Parameters of Older Adults Included in the PROBIOSENIOR Project

Author

Salvesi, Chiara, primary, Silvi, Stefania, additional, Fiorini, Dennis, additional, Alessandroni, Laura, additional, Sagratini, Gianni, additional, Palermo, Francesco Alessandro, additional, De Leone, Renato, additional, Egidi, Nadaniela, additional, Cifani, Carlo, additional, Micioni Di Bonaventura, Maria Vittoria, additional, Amedei, Amedeo, additional, Niccolai, Elena, additional, Scocchera, Francesca, additional, Mannucci, Fausto, additional, Valeriani, Valerio, additional, Malavasi, Marco, additional, Servili, Sara, additional, Casula, Andrea, additional, Cresci, Andrea, additional, Corradetti, Ivano, additional, Coman, Maria Magdalena, additional, and Verdenelli, M. Cristina, additional

Published
2023
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36. The Estimation of the Parameters in Multi-Criteria Classification Problem: The Case of the Electre Tri Method

Author

De Leone, Renato, Minnetti, Valentina, Bock, Hans-Hermann, Editor-in-chief, Gaul, Wolfgang, Editor-in-chief, Baier, Daniel, Series editor, Vichi, Maurizio, Editor-in-chief, Critchley, Frank, Series editor, Decker, Reinhold, Series editor, Diday, Edwin, Series editor, Greenacre, Michael, Series editor, Lauro, Carlo Natale, Series editor, Meulman, Jacqueline, Series editor, Monari, Paola, Series editor, Nishisato, Shizuhiko, Series editor, Ohsumi, Noboru, Series editor, Opitz, Otto, Series editor, Ritter, Gunter, Series editor, Schader, Martin, Series editor, Weihs, Claus, Editor-in-chief, Vicari, Donatella, editor, Okada, Akinori, editor, and Ragozini, Giancarlo, editor

Published
2014
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37. Impact of a probiotic diet on well-being of healthy senior: THE PROBIOSENIOR PROJECT

Author

Salvesi, Chiara, primary, Silvi, Stefania, additional, Fiorini, Dennis, additional, Scortichini, Serena, additional, Sagratini, Gianni, additional, Palermo, Francesco A., additional, De Leone, Renato, additional, Egidi, Nadaniela, additional, Fatone, Lorella, additional, Cifani, Carlo, additional, Amedei, Amedeo, additional, Scocchera, Francesca, additional, Morici, Mara, additional, Gatto, Beatrice, additional, Mannucci, Fausto, additional, Valeriani, Valerio, additional, Malavasi, Marco, additional, Servili, Sara, additional, Casula, Andrea, additional, Cresci, Andrea, additional, Corradetti, Ivano, additional, Carpi, Francesco, additional, Picciolini, Matteo, additional, Coman, Maria Magdalena, additional, and Verdenelli, Maria Cristina, additional

Published
2022
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44. Stabilisation and set stabilisation of periodic switched Boolean control networks.

Author

Wang, Jianjun, De Leone, Renato, Fu, Shihua, Xia, Jianwei, and Qiao, Lishan

Subjects
*STATE feedback (Feedback control systems)
Abstract

This paper investigates the stabilisation and set stabilisation problems for a class of switched Boolean control networks (SBCNs) with periodic switching signal via a semi-tensor product method. First, algebraic forms are constructed for SBCNs with periodic switching signal. Second, based on the algebraic formulations, the stabilisation and set stabilisation of SBCNs with periodic switching signal are discussed, and some new results are presented. Furthermore, constructive procedure of open loop controllers is given, and the design algorithms of switching signal-dependent state feedback controllers via antecedence solution technique are derived. The study of illustrative examples shows the good performance of the methods presented in this paper. [ABSTRACT FROM AUTHOR]

Published
2023
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45. Six-Month Synbio ® Administration Affects Nutritional and Inflammatory Parameters of Older Adults Included in the PROBIOSENIOR Project.

Author

Salvesi, Chiara, Silvi, Stefania, Fiorini, Dennis, Alessandroni, Laura, Sagratini, Gianni, Palermo, Francesco Alessandro, De Leone, Renato, Egidi, Nadaniela, Cifani, Carlo, Micioni Di Bonaventura, Maria Vittoria, Amedei, Amedeo, Niccolai, Elena, Scocchera, Francesca, Mannucci, Fausto, Valeriani, Valerio, Malavasi, Marco, Servili, Sara, Casula, Andrea, Cresci, Andrea, and Corradetti, Ivano

Subjects
BIOGENIC amines, OLDER people, NUTRITIONAL assessment, NUTRITIONAL status, PROBIOTICS, QUALITY of life, MODERN society
Abstract

The physiological changes associated with ageing contribute to the incidence of diseases, morbidity, and mortality. For modern society, it is essential to find solutions to improve elderly people's health and quality of life. Among promising strategies, the PROBIOSENIOR project proposed a daily six-month supplementation with new probiotic functional foods and nutraceuticals. The aim of this work was to evaluate the modulating effects of the probiotic diet on inflammatory markers and nutritional status. Ninety-seven elderly volunteers were randomly assigned to either a placebo-diet group or a probiotic-diet group (SYNBIO®). Faeces, urine, and blood samples were collected before and after the supplementation to determine serum cytokines, biogenic amines, and inflammation markers. Comparing the results obtained before and after the intervention, probiotic supplementations significantly decreased the TNF-α circulating levels and significantly increased those of IGF-1. Biogenic-amine levels showed high variability, with significant variation only for histamine that decreased after the probiotic supplementation. The supplementation influenced the serum concentration of some crucial cytokines (IL-6, IL-8, and MIP-1α) that significantly decreased in the probiotic group. In addition, the Mini Nutritional Assessment questionnaire revealed that the probiotic-supplemented group had a significant improvement in nutritional status. In conclusion, the PROBIOSENIOR project demonstrated how SYNBIO® supplementation may positively influence some nutritional and inflammatory parameters in the elderly. [ABSTRACT FROM AUTHOR]

Published
2023
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