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661 results on '"Villari, Massimo"'

1. Deepfake Media Forensics: State of the Art and Challenges Ahead

Author

Amerini, Irene, Barni, Mauro, Battiato, Sebastiano, Bestagini, Paolo, Boato, Giulia, Bonaventura, Tania Sari, Bruni, Vittoria, Caldelli, Roberto, De Natale, Francesco, De Nicola, Rocco, Guarnera, Luca, Mandelli, Sara, Marcialis, Gian Luca, Micheletto, Marco, Montibeller, Andrea, Orru', Giulia, Ortis, Alessandro, Perazzo, Pericle, Puglisi, Giovanni, Salvi, Davide, Tubaro, Stefano, Tonti, Claudia Melis, Villari, Massimo, and Vitulano, Domenico

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

AI-generated synthetic media, also called Deepfakes, have significantly influenced so many domains, from entertainment to cybersecurity. Generative Adversarial Networks (GANs) and Diffusion Models (DMs) are the main frameworks used to create Deepfakes, producing highly realistic yet fabricated content. While these technologies open up new creative possibilities, they also bring substantial ethical and security risks due to their potential misuse. The rise of such advanced media has led to the development of a cognitive bias known as Impostor Bias, where individuals doubt the authenticity of multimedia due to the awareness of AI's capabilities. As a result, Deepfake detection has become a vital area of research, focusing on identifying subtle inconsistencies and artifacts with machine learning techniques, especially Convolutional Neural Networks (CNNs). Research in forensic Deepfake technology encompasses five main areas: detection, attribution and recognition, passive authentication, detection in realistic scenarios, and active authentication. This paper reviews the primary algorithms that address these challenges, examining their advantages, limitations, and future prospects.

Published
2024

3. Machine Learning Workflows in the Computing Continuum for Environmental Monitoring

Author

Catalfamo, Alessio, Aral, Atakan, Brandic, Ivona, Deelman, Ewa, Villari, Massimo, Hartmanis, Juris, Founding Editor, van Leeuwen, Jan, Series Editor, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Kobsa, Alfred, Series Editor, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Nierstrasz, Oscar, Series Editor, Pandu Rangan, C., Editorial Board Member, Sudan, Madhu, Series Editor, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Weikum, Gerhard, Series Editor, Vardi, Moshe Y, Series Editor, Goos, Gerhard, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Franco, Leonardo, editor, de Mulatier, Clélia, editor, Paszynski, Maciej, editor, Krzhizhanovskaya, Valeria V., editor, Dongarra, Jack J., editor, and Sloot, Peter M. A., editor

Published
2024
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7. Improving the Key Exchange Process of the eXtended Triple Diffie-Hellman Protocol with Blockchain

Author

Ruggeri, Armando, Villari, Massimo, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Zirpins, Christian, editor, Ortiz, Guadalupe, editor, Nochta, Zoltan, editor, Waldhorst, Oliver, editor, Soldani, Jacopo, editor, Villari, Massimo, editor, and Tamburri, Damian, editor

Published
2022
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10. Realizing Edge Marketplaces: Challenges and Opportunities

Author

Varghese, Blesson, Villari, Massimo, Rana, Omer, James, Philip, Shal, Tejal, Fazio, Maria, and Ranjan, Rajiv

Subjects
Computer Science - Distributed, Parallel, and Cluster Computing
Abstract

The edge of the network has the potential to host services for supporting a variety of user applications, ranging in complexity from data preprocessing, image and video rendering, and interactive gaming, to embedded systems in autonomous cars and built environments. However, the computational and data resources over which such services are hosted, and the actors that interact with these services, have an intermittent availability and access profile, introducing significant risk for user applications that must rely on them. This article investigates the development of an edge marketplace, which is able to support multiple providers for offering services at the network edge, and to enable demand supply for influencing the operation of such a marketplace. Resilience, cost, and quality of service and experience will subsequently enable such a marketplace to adapt its services over time. This article also describes how distributed-ledger technologies (such as blockchains) provide a promising approach to support the operation of such a marketplace and regulate its behavior (such as the GDPR in Europe) and operation. Two application scenarios provide context for the discussion of how such a marketplace would function and be utilized in practice., Comment: Published in IEEE Cloud Computing, Volume 5, Issue 6, 2018, pp. 9-20

Published
2018
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18. Modeling Users’ Performance: Predictive Analytics in an IoT Cloud Monitoring System

Author

Di Salvo, Rosa, Galletta, Antonino, Belcore, Orlando Marco, Villari, Massimo, 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, Brogi, Antonio, editor, Zimmermann, Wolf, editor, and Kritikos, Kyriakos, editor

Published
2020
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19. Blockchain-Based Healthcare Workflows in Federated Hospital Clouds

Author

Ruggeri, Armando, Fazio, Maria, Celesti, Antonio, Villari, Massimo, 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, Brogi, Antonio, editor, Zimmermann, Wolf, editor, and Kritikos, Kyriakos, editor

Published
2020
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22. Big Data HIS of the IRCCS-ME Future: The Osmotic Computing Infrastructure

Author

Carnevale, Lorenzo, Galletta, Antonino, Celesti, Antonio, Fazio, Maria, Paone, Maurizio, Bramanti, Placido, Villari, Massimo, Akan, Ozgur, Series editor, Bellavista, Paolo, Series editor, Cao, Jiannong, Series editor, Coulson, Geoffrey, Series editor, Dressler, Falko, Series editor, Ferrari, Domenico, Series editor, Gerla, Mario, Series editor, Kobayashi, Hisashi, Series editor, Palazzo, Sergio, Series editor, Sahni, Sartaj, Series editor, Shen, Xuemin Sherman, Series editor, Stan, Mircea, Series editor, Xiaohua, Jia, Series editor, Zomaya, Albert Y., Series editor, Longo, Antonella, editor, Zappatore, Marco, editor, Villari, Massimo, editor, Rana, Omer, editor, Bruneo, Dario, editor, Ranjan, Rajiv, editor, Fazio, Maria, editor, and Massonet, Philippe, editor

Published
2018
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23. Orchestration for the Deployment of Distributed Applications with Geographical Constraints in Cloud Federation

Author

Villari, Massimo, Tricomi, Giuseppe, Celesti, Antonio, Fazio, Maria, Akan, Ozgur, Series editor, Bellavista, Paolo, Series editor, Cao, Jiannong, Series editor, Coulson, Geoffrey, Series editor, Dressler, Falko, Series editor, Ferrari, Domenico, Series editor, Gerla, Mario, Series editor, Kobayashi, Hisashi, Series editor, Palazzo, Sergio, Series editor, Sahni, Sartaj, Series editor, Shen, Xuemin Sherman, Series editor, Stan, Mircea, Series editor, Xiaohua, Jia, Series editor, Zomaya, Albert Y., Series editor, Longo, Antonella, editor, Zappatore, Marco, editor, Villari, Massimo, editor, Rana, Omer, editor, Bruneo, Dario, editor, Ranjan, Rajiv, editor, Fazio, Maria, editor, and Massonet, Philippe, editor

Published
2018
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24. A Voice User Interface on the Edge for People with Speech Impairments.

Author

Mulfari, Davide and Villari, Massimo

Subjects
AUTOMATIC speech recognition, SPEECH, USER interfaces, SPEECH perception, HUMAN voice, MACHINE learning
Abstract

Nowadays, fine-tuning has emerged as a powerful technique in machine learning, enabling models to adapt to a specific domain by leveraging pre-trained knowledge. One such application domain is automatic speech recognition (ASR), where fine-tuning plays a crucial role in addressing data scarcity, especially for languages with limited resources. In this study, we applied fine-tuning in the context of atypical speech recognition, focusing on Italian speakers with speech impairments, e.g., dysarthria. Our objective was to build a speaker-dependent voice user interface (VUI) tailored to their unique needs. To achieve this, we harnessed a pre-trained OpenAI's Whisper model, which has been exposed to vast amounts of general speech data. However, to adapt it specifically for disordered speech, we fine-tuned it using our private corpus including 65 K voice recordings contributed by 208 speech-impaired individuals globally. We exploited three variants of the Whisper model (small, base, tiny), and by evaluating their relative performance, we aimed to identify the most accurate configuration for handling disordered speech patterns. Furthermore, our study dealt with the local deployment of the trained models on edge computing nodes, with the aim to realize custom VUIs for persons with impaired speech. [ABSTRACT FROM AUTHOR]

Published
2024
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25. Osmotic Flow Deployment Leveraging FaaS Capabilities

Author

Buzachis, Alina, Fazio, Maria, Celesti, Antonio, Villari, Massimo, 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, Montella, Raffaele, editor, Ciaramella, Angelo, editor, Fortino, Giancarlo, editor, Guerrieri, Antonio, editor, and Liotta, Antonio, editor

Published
2019
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35. C4E: Cloud Brokering Platform for Federated Services Aimed at European Public Administrations

Author

Galletta, Antonino, Ardo, Oliver, Celesti, Antonio, Kissa, Peter, Villari, Massimo, Barbosa, Simone Diniz Junqueira, Series Editor, Chen, Phoebe, Series Editor, Filipe, Joaquim, Series Editor, Kotenko, Igor, Series Editor, Sivalingam, Krishna M., Series Editor, Washio, Takashi, Series Editor, Yuan, Junsong, Series Editor, Zhou, Lizhu, Series Editor, Mann, Zoltán Ádám, editor, and Stolz, Volker, editor

Published
2018
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36. A Cloud Computing Workflow for Managing Oceanographic Data

Author

Allam, Salma, Galletta, Antonino, Carnevale, Lorenzo, Bekri, Moulay Ali, El Ouahbi, Rachid, Villari, Massimo, Barbosa, Simone Diniz Junqueira, Series Editor, Chen, Phoebe, Series Editor, Filipe, Joaquim, Series Editor, Kotenko, Igor, Series Editor, Sivalingam, Krishna M., Series Editor, Washio, Takashi, Series Editor, Yuan, Junsong, Series Editor, Zhou, Lizhu, Series Editor, Mann, Zoltán Ádám, editor, and Stolz, Volker, editor

Published
2018
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37. Re-powering Service Provisioning in Federated Cloud Ecosystems: An Algorithm Combining Energy Sustainability and Cost-Saving Strategies

Author

Giacobbe, Maurizio, Celesti, Antonio, Fazio, Maria, Villari, Massimo, Puliafito, Antonio, Barbosa, Simone Diniz Junqueira, Series editor, Chen, Phoebe, Series editor, Filipe, Joaquim, Series editor, Kotenko, Igor, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Yuan, Junsong, Series editor, Zhou, Lizhu, Series editor, Lazovik, Alexander, editor, and Schulte, Stefan, editor

Published
2018
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38. A Motivating Case Study for Coordinating Deployment of Security VNF in Federated Cloud Networks

Author

Massonet, Philippe, Dupont, Sébastien, Michot, Arnaud, Levin, Anna, Villari, Massimo, Barbosa, Simone Diniz Junqueira, Series editor, Chen, Phoebe, Series editor, Filipe, Joaquim, Series editor, Kotenko, Igor, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Yuan, Junsong, Series editor, Zhou, Lizhu, Series editor, Lazovik, Alexander, editor, and Schulte, Stefan, editor

Published
2018
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40. Towards Osmotic Computing: Looking at Basic Principles and Technologies

Author

Villari, Massimo, Celesti, Antonio, Fazio, Maria, 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, and Terzo, Olivier, editor

Published
2018
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41. An Innovative MapReduce-Based Approach of Dijkstra’s Algorithm for SDN Routing in Hybrid Cloud, Edge and IoT Scenarios

Author

Buzachis, Alina, Galletta, Antonino, Celesti, Antonio, Villari, Massimo, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Weikum, Gerhard, Series Editor, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Kritikos, Kyriakos, editor, Plebani, Pierluigi, editor, and de Paoli, Flavio, editor

Published
2018
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48. Heart Disorder Detection with Menard Algorithm on Apache Spark

Author

Carnevale, Lorenzo, Celesti, Antonio, Fazio, Maria, Bramanti, Placido, Villari, Massimo, 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, De Paoli, Flavio, editor, Schulte, Stefan, editor, and Broch Johnsen, Einar, editor

Published
2017
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50. Special issue on efficient management of microservice‐based systems and applications.

Author

Xu, Minxian, Dustdar, Schahram, Villari, Massimo, and Buyya, Rajkumar

Subjects
METAHEURISTIC algorithms, DEEP learning, SOFTWARE engineering, COMMUNICATION infrastructure
Abstract

This article discusses the efficient management of microservice-based systems and applications. Microservice architecture involves the use of loosely linked, lightweight, and autonomous microservice components, which can be deployed and operated independently. The article highlights the challenges of managing these systems, such as load distribution and resource management, and the need for enhanced approaches to address these challenges. The article also provides summaries of six papers accepted for publication in a special issue on this topic, covering various strategies and techniques for optimizing resource allocation, workload distribution, and system performance. The authors of the papers come from diverse countries, reflecting a global perspective on microservice management. [Extracted from the article]

Published
2024
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