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IEEE International Conference on Fuzzy Systems (FUZZ-IEEE)

作者： Alberto Ramírez-Mena Sofía Cámara-Sánchez Jesús Alcalá-Fdez María Martínez-Rojas Jose Manuel Soto-Hidalgo Information Technology Unit Genyo Spain Dpt. Computer Science and A.I. University of Granada Spain Dpt. Building Construction University of Granada Spain Dpt. Computer Engineering Automation and Robotics University of Granada Spain

ISBN: (数字)9798350319545

ISBN: (纸本)9798350319552

The Internet of Things is revolutionizing how in-terconnected devices communicate and interact within several applications, ranging from health monitoring to smart city development. Yet, the data management in these systems is challenged by imprecision and noise inherent in Internet of Things environments. Fuzzy Rule-Based Systems have emerged as a solution, aptly handling the uncertainty and complexity in decision-making processes these environments present. However, current Fuzzy Rule-Based Systems implementations in Internet of Things often face limitations due to their ad-hoc nature and heavy reliance on specific hardware, thereby restricting their application in diverse and evolving Internet of Things infrastructures. In response to these challenges, we present JFML-IoT, an innovative open-source library that bridges the gap between Fuzzy Rule-Based Systems and Internet of Things devices. JFML-IoT extends the JFML library, implementing the IEEE Std 1855-2016 for Fuzzy Markup Language and adapting its capabilities to the unique demands of the Internet of Things paradigm. This library not only facilitates remote Fuzzy Rule-Based Systems deployment but also excels in generating source code for Internet of Things microcontrollers, thus enabling a new level of hardware abstraction and versatility. Our approach significantly enhances the scalability, flexibility, and integration of Fuzzy Rule-Based Systems within varied Internet of Things systems. To demonstrate the practical application and effectiveness of JFML-IoT, we conducted a case study in a real-world environment. This case study showcases how JFML-IoT can improve data management in Internet of Things systems, offering scalable, efficient, and adaptable solutions that are critical in modern Internet of Things applications.

关键词： Uncertainty Source coding Scalability Noise Collaboration IEEE Standards Libraries

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Evolutionary Design of the Memory Subsystem

arXiv

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arXiv 2023年

作者： Álvarez, Josefa Díaz Risco-Martín, José L. Colmenar, J. Manuel Dpt. of Computer Architecture and Communications University of Extremadura Spain Dpt. of Computer Architecture and Automation Complutense University of Madrid Spain Dpt. of Computer Science King Juan Carlos University Spain

The memory hierarchy has a high impact on the performance and power consumption in the system. Moreover, current embedded systems, included in mobile devices, are specifically designed to run multimedia applications, which are memory intensive. This increases the pressure on the memory subsystem and affects the performance and energy consumption. In this regard, the thermal problems, performance degradation and high energy consumption, can cause irreversible damage to the devices. We address the optimization of the whole memory subsystem with three approaches integrated as a single methodology. Firstly, the thermal impact of register file is analyzed and optimized. Secondly, the cache memory is addressed by optimizing cache configuration according to running applications and improving both performance and power consumption. Finally, we simplify the design and evaluation process of general-purpose and customized dynamic memory manager, in the main memory. To this aim, we apply different evolutionary algorithms in combination with memory simulators and profiling tools. This way, we are able to evaluate the quality of each candidate solution and take advantage of the exploration of solutions given by the optimization *** also provide an experimental experience where our proposal is assessed using well-known benchmark applications. © 2023, CC BY-SA.

关键词： Cache memory

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Adiabatic training for Variational Quantum Algorithms

arXiv

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arXiv 2024年

作者： Acosta, Ernesto Gutiérrez, Carlos Cano Botella, Guillermo Campos, Roberto Dpt. Computer Science and AI University of Granada Granada18071 Spain Computer Architecture and Automation Department Complutense University of Madrid Madrid28040 Spain Theoretical Physics Department Complutense University of Madrid Madrid28040 Spain

This paper presents a new hybrid Quantum Machine Learning (QML) model composed of three elements: a classical computer in charge of the data preparation and interpretation;a Gate-based Quantum computer running the Variational Quantum Algorithm (VQA) representing the Quantum Neural Network (QNN);and an adiabatic Quantum computer where the optimization function is executed to find the best parameters for the VQA. As of the moment of this writing, the majority of QNNs are being trained using gradient-based classical optimizers having to deal with the barren-plateau effect [5]. Some gradient-free classical approaches such as Evolutionary Algorithms have also been proposed to overcome this effect [4]. However, to the knowledge of the authors, adiabatic quantum models have not been used to train VQAs. The paper compares the results of gradient-based classical algorithms against adiabatic optimizers showing the feasibility of integration for gate-based and adiabatic quantum computing models, opening the door to modern hybrid QML approaches for High Performance Computing. © 2024, CC BY-NC-SA.

关键词： Quantum computers

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Multi-objective Optimization of Energy Consumption and Execution Time in a Single Level Cache Memory for Embedded Systems

arXiv

引用

arXiv 2023年

作者： Álvarez, Josefa Díaz Risco-Martín, José L. Manuel Colmenar, J. Centro Universitario de Mérida Universidad de Extremadura Mérida06800 Spain Dpt. of Computer Architecture and Automation Complutense University of Madrid C/Prof. José García Santesmases 9 Madrid28040 Spain Dpt. of Computer Science Rey Juan Carlos University Móstoles28933 Spain

Current embedded systems are specifically designed to run multimedia applications. These applications have a big impact on both performance and energy consumption. Both metrics can be optimized selecting the best cache configuration for a target set of applications. Multi-objective optimization may help to minimize both conflicting metrics in an independent manner. In this work, we propose an optimization method that based on Multi-Objective Evolutionary Algorithms, is able to find the best cache configuration for a given set of applications. To evaluate the goodness of candidate solutions, the execution of the optimization algorithm is combined with a static profiling methodology using several well-known simulation tools. Results show that our optimization framework is able to obtain an optimized cache for Mediabench applications. Compared to a baseline cache memory, our design method reaches an average improvement of 64.43% and 91.69% in execution time and energy consumption, respectively. © 2023, CC BY-SA.

关键词： Evolutionary algorithms

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Network-wide intrusion detection supported by multivariate analysis and interactive visualization 14

Network-wide intrusion detection supported by multivariate a...

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14th IEEE Symposium on Visualization for Cyber Security, VizSec 2017

作者： Theron, Roberto Magan-Carrion, Roberto Camacho, Jose Fernndez, Gabriel MacIa Department of Computer Science and Automation University of Salamanca Spain Dpt. of Signal Theory Telematics and Communications CITIC University of Granada Spain

ISBN: (纸本)9781538626931

In this paper, we introduce a new visualization tool for network-wide intrusion detection. It is based in multivariate anomaly detection with a combination between Principal Component Analysis (PCA) and a new variant called Group-wise PCA (GPCA). Combining these methodologies with the capabilities of interactive visualization, the resulting tool is a highly flexible and intuitive interface that allows the user to navigate through the enormous amount of data collected in the network, in order to find anomalous or unexpected behaviors. We use a real case study to illustrate the capability of the tool to unveil the complex mixture of information that can be found in network security/traffic data and identify and diagnose anomalies in it. © 2017 IEEE.

关键词： Intrusion detection

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Cross-docking Operation Scheduling: Truck Arrivals, Shop-Floor Activities and Truck Departures

引用

IFAC-PapersOnLine 2016年第12期49卷 1353-1358页

作者： Serrano, Christian Moral, Javier Delorme, Xavier Dolgui, Alexandre LIMOS UMR CNRS 6158 Ecole des Mines de Saint-Etienne France Supply Chain Renault Valladolid Spain Automation Production & Computer Science Dpt. IRCCyN UMR CNRS 6597 Ecole des Mines de Nantes France

Cross-docking is a relatively new logistic strategy which seeks to make economies in transportation, decrease lead time and reduce inventory. The main principle is to unload, sort, consolidate and transfer delivered packages from inbound trucks to outbound trucks, with a minimum of storage or treatment in between. Two key issues associated to this field are the truck scheduling and the shop-floor operation scheduling. We propose a mixed integer linear programming model to schedule truck arrivals, shop-floor activities and truck departures. The cross-dock configuration we study is based on an industrial case on the automotive industry. In particular, a repack operation and two temporary storage zones are considered. The objective is to minimize internal operation cost (penalty related to extra capacity needs) and outbound transportation cost (number of trucks). The model is implemented and tested in CPLEX with small size instances, based on industrial data. The proposed model could be easily adapted to a variety of cross-dock configurations, in terms of internal capacity and cost distribution. © 2016

关键词： Trucks

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Secure image encryption based on a chua chaotic noise generator

引用

Journal of Engineering science and Technology Review 2013年第4期6卷 90-103页

作者： Andreatos, A.S. Leros, A.P. Div. of Computer Engineering and Information Science Hellenic Air Force Academy Dekeleia Air Force Base Dekeleia Attica TGA-1010 Greece Dpt. of Automation School of Technological Applications Technological Educational Institute of Chalkis 34400 Psachna Evia Greece

This paper presents a secure image cryptography telecom system based on a Chua's circuit chaotic noise generator. A chaotic system based on synchronised Master-Slave Chua's circuits has been used as a chaotic true random number generator (CTRNG). Chaotic systems present unpredictable and complex behaviour. This characteristic, together with the dependence on the initial conditions as well as the tolerance of the circuit components, make CTRNGs ideal for cryptography. In the proposed system, the transmitter mixes an input image with chaotic noise produced by a CTRNG. Using thresholding techniques, the chaotic signal is converted to a true random bit sequence. The receiver must be able to reproduce exactly the same chaotic noise in order to subtract it from the received signal. This becomes possible with synchronisation between the two Chua's circuits: through the use of specific techniques, the trajectory of the Slave chaotic system can be bound to that of the Master circuit producing (almost) identical behaviour. Additional blocks have been used in order to make the system highly parameterisable and robust against common attacks. The whole system is simulated in Matlab. Simulation results demonstrate satisfactory performance, as well as, robustness against cryptanalysis. The system works with both greyscale and colour jpg images. © 2013 Kavala Institute of Technology.

关键词： Synchronization

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Photonic packaging for optical communications systems-basics and applications

Photonic packaging for optical communications systems-basics...

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International Students and Young Scientists Workshop Photonics and Microsystems

作者： U.H.P. Fischer Dpt. of Automation and Computer Science Harz University of Applied Science Wernigerode Germany

In this report, different fiber-chip coupling concepts are presented. Automated coupling process, as well as different modules for laser welding, gluing and mechanical fixation are also discussed. Thermal stress tests... 详细信息

关键词： Packaging Optical receivers Optical transmitters Optical fiber devices High speed optical techniques Optical fiber communication Optical fiber networks Circuit testing Optical modulation Optical fiber theory

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引用

On the Move to Meaningful Internet Systems 2004: International Conference on Cooperative Information Systems, CoopIS 2004, International Conference on Distributed Objects and Applications, DOA 2004 and International Conference on Ontologies, DataBases and Applications of Semantics, ODBASE 2004

作者： Schallehn, Eike Geist, Ingolf Sattler, Kai-Uwe Dpt. of Computer Science University of Magdeburg P.O. Box 4120 Magdeburg39106 Germany Dpt. of Computer Science and Automation Technical University of Ilmenau P.O. Box 100565 Ilmenau98684 Germany

ISBN: (纸本)9783540304685

Querying and integrating sources of structured data from the Web in most cases requires similarity-based concepts to deal with data level conflicts. This is due to the often erroneous and imprecise nature of the data and diverging conventions for their representation. On the other hand, Web databases offer only limited interfaces and almost no support for similarity queries. The approach presented in this paper maps string similarity predicates to standard predicates like substring and keyword search as offered by many of the mentioned systems. To minimize the local processing costs and the required network traffic, the mapping uses materialized information on the selectivity of string samples such as q-samples, substrings, and keywords. Based on the predicate mapping similarity selections and joins are described and the quality and required effort of the operations is evaluated experimentally. © Springer-Verlag Berlin Heidelberg 2004.

关键词： Mapping

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