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Congress on Evolutionary Computation

作者： Ernesto Serrano-Collado Mario García-Valdez Juan J. Merelo-Guervós University of Granada Granada Spain Instituto Tecnológico de Tijuana Dept. of Computer Architecture and Technology University of Granada Granada Spain

ISBN: (数字)9781728169293

ISBN: (纸本)9781728169309

The term moving target defense or MTD describes a series of techniques that change the configuration of an Internet-facing system; in general, the technique consists of changing the visible configuration to avoid offering a fixed target to service profiling techniques. Additionally, configurations need to be as secure as possible and, since change needs to be frequent, to generate also as many as possible. We previously introduced a proof of concept where we used a simplified evolutionary algorithm for generating these configurations. In this paper we improve this algorithm, trying to adapt it to the specific characteristics of the fitness landscape, and also looking at finding as many solutions as possible.

关键词： Servers Security Evolutionary computation Software Browsers Cloud computing Tools

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A Novel Method for Wind Power Plants’ Repowering Based on Multi-Criteria Decision-Making

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SSRN 2023年

作者： Gil García, Isabel C. Fernández-Guillamón, Ana García-Cascales, M. Socorro Molina-García, Ángel c/ Coruña km 38500 Collado Villalba Madrid28400 Spain Dept. of Applied Mechanics and Projects Engineering - E.T.S. de Ingenieros Industriales & Renewable Energy Research Institute Universidad de Castilla-La Mancha C/ De la Investigación S/N Albacete02006 Spain Department of Electronics Computer Architecture and Project Engineering Department of Automatics Electrical Engineering and Electronic Technology Universidad Politécnica de Cartagena Campus Muralla del Mar Murcia Cartagena30202 Spain

Due to the climate change, over the last decades there have been changes in the rhythm of nature. However, there is an increasing social consciousness regarding decarbonization, and governments include new policies and economic support measures for renewables. The participation of the onshore and offshore wind sectors play a central role in this scenario, expecting that more than 6000 GW will be globally installed in 2050. However, the useful life of many wind power plants is coming to their end, and thus, some countries will face in the coming years the decision of repowering, decommissioning, installing new turbines, or a combination of them. In general, such areas with the greatest wind potential are already occupied by relatively old wind turbines. Subsequently, a complex group of factors influences on the best solution decision-making: climatic, technological, environmental, social or economic. This paper proposes an optimized methodology based on multi-criteria decision-making to estimate the most appropriate solution for extending the useful-life of wind power plants. The methodology is divided into three stages: (i) data, (ii) alternatives and (iii) optimization. It was assessed with a Spanish onshore wind power plant connected to the grid. From the initial data, 11 alternatives were designed based on 10 selection factors. The results provide an optimal solution, combining both repowering and installation of new wind turbines. It would allow us to reduce the LCOE of the new wind plants installed in the European Union by more than 50%. © 2023, The Authors. All rights reserved.

关键词： Wind turbines

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Optimization of Massive Connections in 5G Networks for IoT 6

Optimization of Massive Connections in 5G Networks for IoT

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6th International Conference on Internet of Things: Systems, Management and Security, IOTSMS 2019

作者： Cano, Pablo H. Zapata Ramirez-Arroyo, Alejandro Valero, Francisco Luna Valenzuela-Valdes, Antonio Castillo-Valdivieso, Pedro A. Valdes, Juan Fco. Valenzuela Universidad de Málaga Dept. Lenguajes y Ciencias de la Computación Spain Universidad de Granada-CITIC Dept. of Signal Theory Spain Dept. of Architecture and Computer Technology Universidad de Granada-CITIC Spain

ISBN: (纸本)9781728129495

The expected traffic demands for the coming years requires a major technology development. Indeed, from 2017 to 2022, the global annual traffic growth is estimated to reach 220%. This annual growth leads in turn to an increase in the number of users connected to IP networks, going from 2.4 to 3.6 devices connected per person. Currently, 4G networks are capable of handling this load, but the irruption of the 5G breakthroughs, expected to be at full operation by 2020, is visible. However, 5G technologies may come along with a considerable power consumption if they are not devised properly. As a consequence, a key issue in the developing of these networks is to make them energetically sustainable. In this work, a preliminary study of the optimization of various aspects of the 5G system is presented. It addresses the configuration of the different basic parameters of the system and optimizes the power transmitted by the base stations to obtain simultaneous improvements in system capacity and its power consumption for a massive connections scenario. To the best of our knowledge, this is the very first time this type of 5G scenario is optimized with these two performance criteria. © 2019 IEEE.

关键词： 5G mobile communication systems

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Lightweight Task-Oriented Semantic Communication Empowered by Large-Scale AI Models

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IEEE Transactions on Vehicular technology 2025年

作者： Liu, Chuanhong Guo, Caili Yang, Yang Chen, Mingzhe Quek, Tony Q. S. Beijing University of Posts and Telecommunications Beijing Key Laboratory of Network System Architecture and Convergence School of Information and Communication Engineering Beijing100876 China Beijing University of Posts and Telecommunications Beijing Laboratory of Advanced Information Networks School of Information and Communication Engineering Beijing100876 China University of Miami Department of Electrical and Computer Engineering Institute for Data Science and Computing Coral GablesFL United States Singapore University of Technology and Design Dept. of Information Systems Technology and Design 487372 Singapore

Recent studies have focused on leveraging large-scale artificial intelligence (LAI) models to improve semantic representation and compression capabilities. However, the substantial computational demands of LAI models pose significant challenges for real-time communication scenarios. To address this, this paper proposes utilizing knowledge distillation (KD) techniques to extract and condense knowledge from LAI models, effectively reducing model complexity and computation latency. Nevertheless, the inherent complexity of LAI models leads to prolonged inference times during distillation, while their lack of channel awareness compromises the distillation performance. These limitations make standard KD methods unsuitable for task-oriented semantic communication scenarios. To address these issues, we propose a fast distillation method featuring a pre-stored compression mechanism that eliminates the need for repetitive inference, significantly improving efficiency. Furthermore, a channel adaptive module is incorporated to dynamically adjust the transmitted semantic information based on varying channel conditions, enhancing communication reliability and adaptability. In addition, an information bottleneck-based loss function is derived to guide the fast distillation process. Simulation results verify that the proposed scheme outperform baselines in term of task accuracy, model size, computation latency, and training data requirements. © 1967-2012 IEEE.

关键词： NP-hard

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An ARQ-Based Cooperative Relaying Scheme for 5G IoT Slice

An ARQ-Based Cooperative Relaying Scheme for 5G IoT Slice

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2019 IEEE Global Conference on Internet of Things, GCIoT 2019

作者： Otaru, Musa Ajiya, Mohammed Adinoyi, Abdulkareem Aljlayl, Mohammed Yanikomeroglu, Halim Telecommunications Services Nigerian Communications Satellite Ltd Abuja Nigeria Bayero University Department of Electrical Engineering Kano Nigeria Technology Enterprise Architecture Saudi Telecommunications Company Saudi Arabia Carleton University Dept. of Systems and Computer Engineering Ottawa Canada

ISBN: (纸本)9781728148731

We introduce a new twist to the classical automatic repeat request (ARQ)-based cooperative relaying scheme. Here, we target a 5G slice for offering internet-of-things (IoT)-inspired services. In this 5G application segment (e.g., utility or smart metering), utility sensors or devices are expected to last for decades and, operate on tight power budgets, and the system can tolerate periodic stops to check the fidelity of previous transmissions. For this scenario, we employ a service provider-deployed relay that alleviates the IoT devices of their communication burdens. The source transmits for a certain time window or period without requiring acknowledgments (ACK) from the destination. At the end of this window, the destination sends an ACK. If negative, the relay is expected to assist. Thus, the relay transmits only intermittently, in either one transmission time slot or a few time slots, using a suitably chosen higherorder modulation constellation. If no error occurs, the source continues its transmission. The numerical results show that with just a few antennas at the relay, the new scheme provides both a reduction in the number of ARQ transmissions and a superior probability of bit error compared with a reference scheme. We adopt the two-parameter Weibull fading model to evaluate the performance of the proposed scheme. © 2019 IEEE.

关键词： Internet of things

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Message from the SAIP, NEMI, ECRF, Journal First, and Workshops Track Chairs

Proceedings - 2021 IEEE 18th International Conference on Sof...

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Proceedings - 2021 IEEE 18th International Conference on Software architecture Companion, ICSA-C 2021 2021年 x-xi页

作者： Becker, Steffen Camara, Javier Challita, Stephanie Fehling, Christoph Jansen, Anton Kopp, Oliver Koziolek, Heiko Kruchten, Philippe Lewis, Grace A. Lilienthal, Carola Spalazzese, Romina Trubiani, Catia University of Stuttgart Software Quality and Architecture Stuttgart Germany University of York York United Kingdom University of Rennes 1 Rennes France Mercedes-Benz AG Sindelfingen Germany Philips Innovation Services Philips Eindhoven Netherlands ABB Research Ladenburg Germany University of British Columbia Electrical and Computer Engineering Canada Software Engineering Institute Carnegie Mellon University PittsburghPA United States WPS-Workplace Solutions GmbH Hamburg Germany Malmö University Dept. of Computer Science and Media Technology Malmö Sweden Gran Sasso Science Institute L'Aquila Italy

ISBN: (纸本)9781665439107

The 18th IEEE International Conference on Software architecture (ICSA 2021) solicited different types of submissions structured into the following tracks: The main Technical Track (included in the ICSA main proceedings), the Software architecture in Practice (SAIP) track, the New and Emerging Ideas (NEMI) track, the Early Career Researchers Forum (ECRF), the Journal First track, and the Workshop track (included in the companion volume of ICSA 2021 proceedings). Each of these tracks, except for the Technical Track, is presented in the following sections. © 2021 IEEE.

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Virtual reality exploration with different head-related transfer functions 15

Virtual reality exploration with different head-related tran...

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15th Sound and Music Computing Conference, SMC 2018

作者： Sikström, Erik Geronazzo, Michele Kleimola, Jari Avanzini, Federico De Götzen, Amalia Serafin, Stefania Virsabi ApS Denmark Dept. of Architecture Design and Media Technology Aalborg University Denmark Hefio Ltd Finland Dept. of Computer Science University of Milano Italy

ISBN: (纸本)9789963697304

One of the main challenges of spatial audio rendering in headphones is the crucial work behind the personalization of the so-called head-related transfer functions (HRTFs). HRTFs capture the listener's acoustic effects allowing a personal perception of immersion in virtual reality context. This paper aims to investigate the possible benefits of personalized HRTFs that were individually selected based on anthropometric data (pinnae shapes). Personalized audio rendering was compared to a generic HRTF and a stereo sound condition. Two studies were performed;the first study consisted of a screening test aiming to evaluate the participants' localization performance with HRTFs for a non-visible spatialized audio source. The second experiment allowed the participants to freely explore a VR scene with five audiovisual sources for two minutes each, with both HRTF and stereo conditions. A questionnaire with items for spatial audio quality, presence and attention was used for the evaluation. Results indicate that audio rendering methods made no difference on responses to the questionnaire in the two minutes of a free exploration. © Proceedings of the 15th Sound and Music Computing Conference: Sonic Crossings, SMC 2018. All rights reserved.

关键词： Surveys

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The IFC to linked building data converter - Current status 6

The IFC to linked building data converter - Current status

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6th Linked Data in architecture and Construction Workshop, LDAC 2018

作者： Bonduel, Mathias Oraskari, Jyrki Pauwels, Pieter Vergauwen, Maarten Klein, Ralf KU Leuven Dept. of Civil Engineering Technology Cluster Construction Ghent Belgium Aalto University Dept. of Computer Science Espoo Finland Ghent University Dept. of Architecture and Urban Planning Ghent Belgium

Several methods for creating building-related Linked Data graphs exist. This paper focuses on the conversion of IFC Building Information Models (BIM) to RDF Abox graphs using the emerging W3C Linked Building Data (LBD) modular ontologies: BOT (building topology), PRODUCT (classification of building elements) and PROPS (building-related properties). The existing IFC-to-RDF converter tool, converts IFC into ifcOWL-based Abox graphs which are rather complex and difficult to implement in software applications. The IFC-to-LBD converter presented, is necessary to transform IFC building models into RDF Abox graphs structured according the new LBD ontologies. An output graph contains the relevant information of the IFC building model related to building topology, building elements classification and building-related properties. Additionally, the graph structure becomes more concise (minimum 83 % less triples) and significantly easier to query compared to the output of the ifcOWL-based IFC-to-RDF converter. © 2018 CEUR-WS. All Rights Reserved.

关键词： Linked data

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Development of Training System and Practice Contents for Cybersecurity Education

Development of Training System and Practice Contents for Cyb...

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IIAI International Conference on Advanced Applied Informatics (IIAIAAI)

作者： Sanggyu Shin Yoichi Seto Yosuke Kasai Rituna Ka Daishi Kuroki Shinichi Toyoda Koji Hasegawa Kazuhiro Midorikawa Dept. of Applied Computer Engineering TOKAI University Hiratsuka-shi Japan Master Program of Information Systems Architecture Advanced Institute of Industrial Technology Tokyo Japan Master Program of Information Systems Architecture Advanced Institute of Industrial Technology

ISBN: (纸本)9781728126289

In this paper, we propose a cybersecurity exercise system in a virtual computer environment. The human resource development for security fields is an urgent issue because of the threat of cyber-attacks, recently, is increasing, many incidents occurring, but there is a not enough security personnel to respond. Some universities and companies are conducting education using a commercial training system on the market. However, built and operates the training system is expensive, therefore difficult to use in higher education institutions and SMEs. However, to build and operates, the training system needs high cost, thus difficult to use in higher education institutions and SMEs. For this reason, we developed the CyExec: a cybersecurity exercise system consisting of a virtual computer environment using VirtualBox and Docker. We also implemented the WebGoat that is an OSS vulnerability diagnosis and learning program on the CyExec and developed an attack and defense exercise program.

关键词： computer science education educational institutions further education security of data Educational institutions Continuing Education Data Security computer science education Network security higher education institute SUPERCONDUCTING MAGNETIC ENERGY STORAGE Security Personnel Training Functional training

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The new generation of the Data Acquisition System of KM3NeT 38

The new generation of the Data Acquisition System of KM3NeT

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38th International Cosmic Ray Conference, ICRC 2023

作者： Circella, M. Battista, N. Benfenati, F. Bruno, R. Buis, E.-J. Calvo, D. Chiarusi, T. Cocimano, R. Colonges, S. D’Amico, A. Díaz, A.F. Filippini, F. Henry, S. Jansweijer, P. Lindsey Clark, M. Mongelli, M. Nicolau, C. Pastore, C. Pellegrini, G. Pulvirenti, S. Real, D. Samteleben, D. Schmelling, J.-W. Sgura, I. Tatone, F. Valieri, C. Van Beveren, V. Vivolo, D. Istituto Nazionale di Fisica Nucleare – Sezione di Bari Via Orabona 4 Bari70125 Italy Istituto Nazionale di Fisica Nucleare – Sezione di Bologna V.le C. Berti-Pichat 6/2 Bologna40127 Italy Università di Bologna Dipartimento di Fisica e Astronomia V. le C. Berti-Pichat 6/2 Bologna40127 Italy Istituto Nazionale di Fisica Nucleare – Sezione di Catania Via Santa Sofia 64 Catania95123 Italy TNO Technical Sciences PO Box 155 Delft2600 AD Netherlands Nikhef National Institute for Subatomic Physics PO Box 41882 Amsterdam1009 DB Netherlands c/Catedrático José Beltrán 2 Paterna Valencia46980 Spain Istituto Nazionale di Fisica Nucleare Laboratori Nazionali del Sud Via S. Sofia 62 Catania95123 Italy Université Paris Cité CNRS Astroparticule et Cosmologie ParisF-75013 France University of Granada Dept. of Computer Architecture and Technology/CITIC Granada18071 Spain Aix Marseille Univ. CNRS IN2P3 CPPM Marseille France Istituto Nazionale di Fisica Nucleare – Sezione di Roma Piazzale Aldo Moro 2 Roma00185 Italy Istituto Nazionale di Fisica Nucleare – Sezione di Napoli Complesso Universitario di Monte S. Angelo Via Cintia ed. G Napoli80126 Italy Università degli Studi della Campania "Luigi Vanvitelli" Dipartimento di Matematica e Fisica V.le Lincoln 5 Caserta81100 Italy

The KM3NeT Collaboration is installing two neutrino telescopes at the bottom of the Mediterranean Sea, ARCA and ORCA. These detectors are built in the form of very large 3D arrays of photomultipliers (PMTs) detecting the Cherenkov light induced by relativist particles propagating in the sea water. The PMTs are installed inside pressure-resistant glass spheres, the Digital Optical Modules (DOMs), each containing 31 PMTs together with the electronics for data taking and communication. Eighteen DOMs and a base module are comprised in a detection unit (DU), a structure standing on the sea bottom with a height of almost 700 m for ARCA (200 m for ORCA). For optimal performance of the detectors, a good synchronization of all parts of the detectors is required. The data acquisition system of KM3NeT has been designed based on the White Rabbit (WR) protocol. In a first phase of construction of the detectors, this has been developed in a tailored design based on a "broadcast" approach: in such scheme, the communications from the shore station to the detectors is performed by distributing the same data stream to all underwater nodes, while in the opposite path each single DOM sends data to shore through its own communication channel. For the next phase of construction, a new system has been developed, based on the standard WR protocol. This approach has some significant advantages, in terms of maintainability and scalability of the system, which are obtained with a non-negligible cost, however, since it became necessary to design tailored WR components which would meet the KM3NeT requirements and to modify the full design of the apparatus consequently. In this paper we will present and compare these two DAQ system designs. © Copyright owned by the author(s) under the terms of the Creative Commons.

关键词： Cosmic ray detectors

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