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Journal articles on the topic 'Critical distributed real-time systems'

Author: Grafiati

Published: 4 June 2021

Last updated: 17 February 2022

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1

Wedde, Horst F., and Sabine Böhm. "Adaptive Distributed Real-Time Transaction Management in Safety-Critical Systems." IFAC Proceedings Volumes 33, no. 7 (2000): 81–87. http://dx.doi.org/10.1016/s1474-6670(17)39937-8.

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2

Son, Sang H., Robert C. Beckinger, and David A. Baker. "DRDB: Towards distributed real-time database services for time-critical active applications." Journal of Systems and Software 42, no. 3 (1998): 193–204. http://dx.doi.org/10.1016/s0164-1212(98)10010-9.

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3

Camier, Jean-Sylvain, Damien Chabrol, Vincent David, and Christophe Aussagués. "A SAFE AND EFFICIENT PROTOCOL FOR OASIS-BASED DISTRIBUTED SAFETY-CRITICAL REAL-TIME SYSTEMS." IFAC Proceedings Volumes 40, no. 22 (2007): 245–48. http://dx.doi.org/10.3182/20071107-3-fr-3907.00033.

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4

Ochoa, G., S. Mondié, and V. L. Kharitonov. "Time delay systems with distributed delays: Critical values*." IFAC Proceedings Volumes 42, no. 14 (2009): 272–77. http://dx.doi.org/10.3182/20090901-3-ro-4009.00044.

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5

Thompson, H. A., D. N. Ramos-Hernandez, J. Fu, et al. "A flexible environment for rapid prototyping and analysis of distributed real-time safety-critical systems." Control Engineering Practice 15, no. 1 (2007): 77–94. http://dx.doi.org/10.1016/j.conengprac.2006.04.005.

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Zhao, R., G. H. Qin, H. P. Chen, J. Qin, and J. Yan. "Security-Aware Scheduling for FlexRay-Based Real-Time Automotive Systems." Mathematical Problems in Engineering 2019 (June 13, 2019): 1–17. http://dx.doi.org/10.1155/2019/4130756.

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FlexRay is a hybrid communication protocol tailored to the requirements of safety-critical distributed real-time automotive systems, providing support for the transmission of time-critical periodic frames in a static segment and event-triggered frames in a dynamic segment. With the development of intelligence and networking of vehicles, such systems are becoming increasingly connected to external environments; thus, security has become a pressing issue in system design. However, FlexRay-based architecture does not have direct support for secure communication. When deploying the security mechan

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Namjoshi, Yogendra. "Task Scheduler Based Design of Software Architecture for Distributed Timed Automata in Safety Critical Systems." Advanced Materials Research 403-408 (November 2011): 3430–37. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.3430.

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The paper revisits the approach of distributed timed automata in order to improve and optimize the methodology used in order to increase the availability of a safety critical system and implements using embedded real time task scheduler. A double wheel counter or digital axle counter system, a typical safety critical system that is used in solid state based railway signaling systems, is considered for achieving higher availability under certain failures. The improvement in the software architecture is influenced by the theory of task scheduler of real time operating system.

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CHO, KILSEOK, ALAN D. GEORGE, and RAJ SUBRAMANIYAN. "FAULT-TOLERANT PARALLEL ALGORITHMS FOR ADAPTIVE MATCHED-FIELD PROCESSING ON DISTRIBUTED ARRAY SYSTEMS." Journal of Computational Acoustics 13, no. 04 (2005): 667–87. http://dx.doi.org/10.1142/s0218396x0500289x.

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Continuous innovations in adaptive matched-field processing (MFP) algorithms have presented significant increases in computational complexity and resource requirements that make development and use of advanced parallel processing techniques imperative. In real-time sonar systems operating in severe underwater environments, there is a high likelihood of some part of systems exhibiting defective behavior, resulting in loss of critical network, processor, and sensor elements, and degradation in beam power pattern. Such real-time sonar systems require high reliability to overcome these challenging

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KIM, K. H. (KANE). "REAL-TIME OBJECT-ORIENTED DISTRIBUTED SOFTWARE ENGINEERING AND THE TMO SCHEME." International Journal of Software Engineering and Knowledge Engineering 09, no. 02 (1999): 251–76. http://dx.doi.org/10.1142/s0218194099000164.

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Real-time (RT) object-oriented (OO) distributed computing is a form of RT distributed computing realized with a distributed computer system structured in the form of an object network. Several approaches proposed in recent years for extending the conventional object structuring scheme to suit RT applications, are briefly reviewed. Then the approach to RT OO distributed computing which the author and his collaborators have been establishing in recent years will be reviewed in more detail. The approach named the TMO (Time-triggered Message-triggered Object) structuring scheme was formulated with

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HUGHES, LARRY, HOSEIN MARZI, and YANTING LIN. "A NEW APPROACH IN DESIGNING INTERPROCESS COMMUNICATION FOR REAL-TIME SYSTEMS." International Journal of Software Engineering and Knowledge Engineering 15, no. 02 (2005): 259–64. http://dx.doi.org/10.1142/s0218194005002051.

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In networked and distributed environments, and in multi-tasking systems, processes run simultaneously and compete to access the system resources. Processes commonly communicate with one another. Various techniques have been adapted in designing Interprocess Communication mechanisms within operating systems such as signals and message-passing. Signals are software interrupts notifying a process that an event has occurred; they do not support data exchange between processes. Message-Passing, a widely used technique in this design, it may use pipes to allow two or more processes to exchange data.

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11

Whitbrook, Amanda, Qinggang Meng, and Paul W. H. Chung. "Reliable, Distributed Scheduling and Rescheduling for Time-Critical, Multiagent Systems." IEEE Transactions on Automation Science and Engineering 15, no. 2 (2018): 732–47. http://dx.doi.org/10.1109/tase.2017.2679278.

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Kada, Barkahoum, and Hamoudi Kalla. "A Fault-Tolerant Scheduling Algorithm Based on Checkpointing and Redundancy for Distributed Real-Time Systems." International Journal of Distributed Systems and Technologies 10, no. 3 (2019): 58–75. http://dx.doi.org/10.4018/ijdst.2019070104.

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Real-time systems are becoming ever more widely used in life-critical applications, and the need for fault-tolerant scheduling can only grow in the years ahead. This article presents a novel fault tolerance approach for tolerating transient faults in hard real-time systems. The proposed approach combines both checkpointing with rollback and active replication to tolerate several transient faults. Based on this approach, a new static fault-tolerant scheduling algorithm SFTS is presented. It is based on a list of scheduling heuristics which satisfy the application time constraints even in the pr

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Edwing, Richard, Chung-Chu Teng, and Robert Heitsenrether. "Technology Developments in NOAA's Real-Time Coastal Observing Systems." Marine Technology Society Journal 49, no. 2 (2015): 122–37. http://dx.doi.org/10.4031/mtsj.49.2.15.

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AbstractThe critical need for real-time coastal oceanographic and meteorological measurements to support maritime forecasters, emergency managers, pilots, vessel operators, port authorities, coastal planners, and many other decision makers has rapidly grown, along with the variety of scientific research applications that rely on resulting long-term data records. To support the needs for such observations, the National Ocean Service Center for Operational Oceanographic Products and Services (CO-OPS) continues to maintain and develop the National Water Level Observation Network (NWLON) and Physi

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Liu, Caibing, Fang Li, Guohao Chen, and Xin Huang. "TTEthernet Transmission in Software-Defined Distributed Robot Intelligent Control System." Wireless Communications and Mobile Computing 2018 (July 17, 2018): 1–13. http://dx.doi.org/10.1155/2018/8589343.

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With the integration of new technologies such as smart technologies and cloud computing in the industrial Internet of Things, the complexity of industrial IoT applications is increasing. Real-time performance and determinism are becoming serious challenges for system implementation in these Internet of Things systems, especially in critical security areas. This paper provides a framework for a software-defined bus-based intelligent robot system and designs scheduling algorithms to make TTEthernet play the role of scheduling in the framework. Through the framework, the non-real-time and uncerta

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Búr, Márton, Gábor Szilágyi, András Vörös, and Dániel Varró. "Distributed graph queries over models@run.time for runtime monitoring of cyber-physical systems." International Journal on Software Tools for Technology Transfer 22, no. 1 (2019): 79–102. http://dx.doi.org/10.1007/s10009-019-00531-5.

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Abstract Smart cyber-physical systems (CPSs) have complex interaction with their environment which is rarely known in advance, and they heavily depend on intelligent data processing carried out over a heterogeneous and distributed computation platform with resource-constrained devices to monitor, manage and control autonomous behavior. First, we propose a distributed runtime model to capture the operational state and the context information of a smart CPS using directed, typed and attributed graphs as high-level knowledge representation. The runtime model is distributed among the participating

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Yang, Lijie, Ruirui Dang, Chunyi Song, and Zhiwei Xu. "Reference Phase Stabilizer for Distributed Underwater Sonar Systems." Sensors 18, no. 12 (2018): 4279. http://dx.doi.org/10.3390/s18124279.

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An optical fiber is a promising approach for data and clock transmission in distributed underwater sonar systems. However, synchronization is a critical challenge in distributed sonar systems, which mandates accurate clock synchronization down to a sub degree. Potential phase misalignment is caused by fiber length variations. In this paper, we propose a fiber-based phase stabilizer method to achieve accurate clock synchronization among sensor nodes. We use fiber-based feedback loop between sensor nodes and central station unit to monitor phase variations. Subsequently, we leverage phase shifte

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Wu, Yao, Long Zheng, Brian Heilig, and Guang R. Gao. "HAMR: A dataflow-based real-time in-memory cluster computing engine." International Journal of High Performance Computing Applications 31, no. 5 (2016): 361–74. http://dx.doi.org/10.1177/1094342016672080.

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As the attention given to big data grows, cluster computing systems for distributed processing of large data sets become the mainstream and critical requirement in high performance distributed system research. One of the most successful systems is Hadoop, which uses MapReduce as a programming/execution model and takes disks as intermedia to process huge volumes of data. Spark, as an in-memory computing engine, can solve the iterative and interactive problems more efficiently. However, currently it is a consensus that they are not the final solutions to big data due to a MapReduce-like programm

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KORIEM, SAMIR M. "PERFORMANCE MODELS FOR STUDYING AND ANALYZING REAL-TIME MULTIMEDIA SYSTEMS." Journal of Circuits, Systems and Computers 15, no. 04 (2006): 571–606. http://dx.doi.org/10.1142/s0218126606003179.

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As real-time systems continue to grow, performance evaluation plays a critical role in the design of these systems since the computation time, the service time, and the responsive actions must satisfy the time constraints. One of these systems is the real-time distributed multimedia-on-demand (MOD) service system. The MOD system usually fails when it misses a task deadline. The main units of the MOD system usually communicate with each other and work concurrently under timing constraints. The MOD system is designed to store, retrieve, schedule, synchronize and communicate objects comprising of

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Worku, Muhammed Y., Mohamed A. Hassan, and Mohamed A. Abido. "Real Time-Based under Frequency Control and Energy Management of Microgrids." Electronics 9, no. 9 (2020): 1487. http://dx.doi.org/10.3390/electronics9091487.

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In this paper, an efficient under frequency control and the energy management of a distributed energy resources (DERs)-based microgrid is presented. The microgrid is composed of a photovoltaic (PV), double-fed induction generator (DFIG)-based wind and diesel generator with critical and non-critical loads. The system model and the control strategy are developed in a real time digital simulator (RTDS). The coordination and power management of the DERs in both grid-connected and islanded operation modes are implemented. During power imbalances and frequency fluctuations caused by fault or islandi

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20

Wirawan Wijiutomo, Catur, Bambang Riyanto Trilaksono, and Achmad Imam Kistijantoro. "Fault Tolerant Dynamic Scheduling on Real Time Hierarchical System: Proposals for Fault Tolerant Mechanism on Safety-Critical System." International Journal of Engineering & Technology 7, no. 4.44 (2018): 99. http://dx.doi.org/10.14419/ijet.v7i4.44.26871.

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The paradigm changes from federated architecture to integrated architecture in the real time system introduces a partitioned system to ensure fault isolation and for scheduling the hierarchy scheduling at the global level between partition and local in partition. Integrated architecture based on partitioned system with hierarchical scheduling is referred as real time hierarchical system which is a solution to increase efﬁciency in terms of hardware cost and size. This approach increasing the complexity of the integration process including the handling of faults. In this paper the authors descr

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21

Mammeri, Z., and P. Lorenz. "Integration of temporal mechanisms in communication protocols for time-critical distributed systems." IFAC Proceedings Volumes 27, no. 15 (1994): 7–12. http://dx.doi.org/10.1016/s1474-6670(17)45742-9.

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22

Hannon, Christopher, Jiaqi Yan, and Dong Jin. "Distributed Virtual Time-Based Synchronization for Simulation of Cyber-Physical Systems." ACM Transactions on Modeling and Computer Simulation 31, no. 2 (2021): 1–24. http://dx.doi.org/10.1145/3446237.

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Our world today increasingly relies on the orchestration of digital and physical systems to ensure the successful operations of many complex and critical infrastructures. Simulation-based testbeds are useful tools for engineering those cyber-physical systems and evaluating their efficiency, security, and resilience. In this article, we present a cyber-physical system testing platform combining distributed physical computing and networking hardware and simulation models. A core component is the distributed virtual time system that enables the efficient synchronization of virtual clocks among di

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23

Bernardelli de Moraes, Matheus, and André Leon Sampaio Gradvohl. "Evaluating the impact of a coordinated checkpointing in distributed data streams processing systems using discrete event simulation." Revista Brasileira de Computação Aplicada 12, no. 2 (2020): 16–27. http://dx.doi.org/10.5335/rbca.v12i2.10295.

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Data Streams Processing systems process continuous flows of data under Quality of Service requirements. Data streams often contain critical information which requires real-time processing. To guarantee systems' dependability and avoid information loss, one must use a fault-tolerance strategy. However, there are several strategies available, and the proper evaluation of which mechanism is better for each system architecture is challenging, especially in large-scale distributed systems. In this paper, we propose a discrete simulation model for investigating the impacts of the Coordinated Checkpo

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Benítez-Pérez, Hector, F. Cárdenas-Flores, and F. García-Nocetti. "Reconfigurable Takagi-Sugeno Fuzzy Logic Control for a Class of Nonlinear System considering Communication Time Delays on Peripheral Elements." International Journal of Computers Communications & Control 6, no. 3 (2010): 387. http://dx.doi.org/10.15837/ijccc.2011.3.2124.

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Nowadays the study of faults and their consequences becomes an issue into highly safety critical computer network systems. How to bound the effects of a fault and how to tackle them into a dynamic system is still an open field. In here an approach to tackle this problem is presented. The use of Takagi-Sugeno fuzzy logic structure is given in order to accomplish two challenges, the presence of local faults and the respective time delays within a realtime distributed system. This approach is pursued as reconfigurable strategy according to communication time delays within a real-time distributed

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Ni, Yanting, Yuchen Li, Jin Yao, and Jingmin Li. "Development of an integrated real time dispatching system." Journal of Manufacturing Technology Management 25, no. 7 (2014): 980–97. http://dx.doi.org/10.1108/jmtm-01-2012-0006.

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Purpose – In a complex semiconductor manufacturing system (SMS) environment, the implementation of dynamic production scheduling and dispatching strategies is critical for SMS distributed collaborative manufacturing events to make quick and correct decisions. The purpose of this paper is to assist manufacturers in achieving the real time dispatching and obtaining integrated optimization for shop floor production scheduling. Design/methodology/approach – In this paper, an integrated model is designed under assemble to order environment and a framework of a real time dispatching (IRTD) system fo

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Suhanov, Valeriy, and Oleg Lankin. "Logical design of information support for distributed information systems of critical application." Modeling of systems and processes 14, no. 2 (2021): 67–73. http://dx.doi.org/10.12737/2219-0767-2021-14-2-67-73.

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The article deals with new information technologies for building a data warehouse in a distributed information system of critical application. The existing principles of creating data warehouses, as well as the outlined ways to improve them, are always associated with the collection, storage and use of information that is recorded at a certain point in time, while they store data corresponding to the last time count. This approach to the development and application of data warehouses can be called static, since it does not store or display the behavior of objects at past points in time. Howeve

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Yao, Yibin, Xingyu Xu, Chaoqian Xu, Wenjie Peng, and Yangyang Wan. "Establishment of a Real-Time Local Tropospheric Fusion Model." Remote Sensing 11, no. 11 (2019): 1321. http://dx.doi.org/10.3390/rs11111321.

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The tropospheric delay is one major error source affecting the precise positioning provided by the global navigation satellite system (GNSS). This error occurs because the GNSS signals are refracted while travelling through the troposphere layer. Nowadays, various types of model can produce the tropospheric delay. Among them, the globally distributed GNSS permanent stations can resolve the tropospheric delay with the highest accuracy and the best continuity. Meteorological models, such as the Saastamoinen model, provide formulae to calculate temperature, pressure, water vapor pressure and subs

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Pop, Florin. "Optimization of Resource Control for Transitions in Complex Systems." Mathematical Problems in Engineering 2012 (2012): 1–12. http://dx.doi.org/10.1155/2012/625861.

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In complex systems like Large-Scale Distributed Systems (LSDSs) the optimization of resource control is an open issue. The large number of resources and multicriteria optimization requirements make the optimization problem a complex one. The importance of resource control increases with the need of use for industrial process and manufacturing, being a key solution for QoS assuring. This paper presents different solutions for multiobjective decentralized control models for tasks assignment in LSDS. The transaction in real-time complex system is modeled in simulation by tasks which will be sched

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Ni, Yanting, and Yi Wang. "A double decoupling postponement approach for integrated mixed flow production systems." Kybernetes 44, no. 5 (2015): 705–20. http://dx.doi.org/10.1108/k-10-2014-0229.

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Purpose – In a mixed flow production environment, interactions between production planning and scheduling are critical for mixed flow distributed manufacturing management. The purpose of this paper is to assist manufacturers in achieving real-time ordering and obtaining integrated optimization of shop floor production planning and scheduling for mixed flow production systems. Design/methodology/approach – A double decoupling postponement (DDP) approach is presented for production dispatch control, and an integrated model is designed under an assemble to order (ATO) environment. To generate “op

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Bergenti, Federico, and Agostino Poggi. "Developing Smart Emergency Applications with Multi-Agent Systems." International Journal of E-Health and Medical Communications 1, no. 4 (2010): 1–13. http://dx.doi.org/10.4018/jehmc.2010100101.

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Multi-agent systems have been importantly contributing to the development of the theory and the practice of complex distributed systems and, in particular, they have shown their potential to meet critical needs in high-speed, mission-critical, content-rich, distributed information applications where mutual interdependencies, dynamic environments, uncertainty, and sophisticated control play a remarkable role. Therefore, multi-agent systems are considered a suitable technology for the realization of e-health applications where the use of loosely coupled and heterogeneous components, the dynamic

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Zárraga-Rodríguez, Marta, Xabier Insausti, and Jesús Gutiérrez-Gutiérrez. "On the topology design of large wireless sensor networks for distributed consensus with low power consumption." International Journal of Distributed Sensor Networks 15, no. 12 (2019): 155014771989674. http://dx.doi.org/10.1177/1550147719896742.

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Sensor-based structural health monitoring systems are commonly used to provide real-time information and detect damage in complex structures. In particular, wireless structural health monitoring systems are of low cost but, since wireless sensors are powered with batteries, a low power consumption is critical. A common approach for wireless structural health monitoring is to use a distributed computation strategy, which is usually based on consensus algorithms. Power consumption in such wireless consensus networks depends on the number of connections of the network. If sensors are randomly con

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Vijayalakshmi, G. "Dependability Analysis of Homogeneous Distributed Software/Hardware Systems." International Journal of Reliability, Quality and Safety Engineering 22, no. 02 (2015): 1550007. http://dx.doi.org/10.1142/s0218539315500072.

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With the increasing demand for high availability in safety-critical systems such as banking systems, military systems, nuclear systems, aircraft systems to mention a few, reliability analysis of distributed software/hardware systems continue to be the focus of most researchers. The reliability analysis of a homogeneous distributed software/hardware system (HDSHS) with k-out-of-n : G configuration and no load-sharing nodes is analyzed. However, in practice the system load is shared among the working nodes in a distributed system. In this paper, the dependability analysis of a HDSHS with load-sh

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Alali, Mohammad, Zagros Shahooei, and Maryam Bahramipanah. "Resiliency-Oriented Optimization of Critical Parameters in Multi Inverter-Fed Distributed Generation Systems." Sustainability 13, no. 12 (2021): 6699. http://dx.doi.org/10.3390/su13126699.

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In the modern power grid, with the growing penetration of renewable and distributed energy systems, the use of parallel inverters has significantly increased. It is essential to achieve stable parallel operation and reasonable power sharing between these parallel inverters. Droop controllers are commonly used to control the power sharing between parallel inverters in an inverter-based microgrid. In this paper, a small signal model of droop controllers with secondary loop control and an internal model-based voltage and current controller is proposed to improve the stability, resiliency, and pow

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Diekhake, P., T. Kurczveil, and U. Becker. "Modelling and simulation of distributed time critical communication and control systems in vehicles or vehicle networks." IFAC-PapersOnLine 49, no. 3 (2016): 303–8. http://dx.doi.org/10.1016/j.ifacol.2016.07.051.

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Al-Dulaimi, Jabbar, John Cosmas, and Maysam Abbod. "Smart Health and Safety Equipment Monitoring System for Distributed Workplaces." Computers 8, no. 4 (2019): 82. http://dx.doi.org/10.3390/computers8040082.

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This paper presents a design and prototype of an IoT-based health and safety monitoring system using MATLAB GUI. This system, which is called the Smart Health and Safety Monitoring System, is aimed at reducing the time, cost and manpower requirements of distributed workplaces. The proposed system is a real-time control and monitoring system that can access on-line the status of consumable devices in the workplace via the internet and prioritise the critically high location that need replenishing. The system dynamically updates the status of all location, such as first aid boxes, earplug dispen

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Shenoy, Meetha V., and K. R. Anupama. "DTTA - Distributed, Time-division Multiple Access based Task Allocation Framework for Swarm Robots." Defence Science Journal 67, no. 3 (2017): 316. http://dx.doi.org/10.14429/dsj.67.10955.

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Swarm robotic systems, unlike traditional multi-robotic systems, deploy number of cost effective robots which can co-operate, aggregate to form patterns/formations and accomplish missions beyond the capabilities of individual robot. In the event of fire, mine collapse or disasters like earthquake, swarm of robots can enter the area, conduct rescue operations, collect images and convey locations of interest to the rescue team and enable them to plan their approach in advance. Task allocation among members of the swarm is a critical and challenging problem to be addressed. DTTA- a distributed, T

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Reyes-Muñoz, A., J. Guerrero-Ibáñez, E. Pastor, M. Gasull, and C. Barrado. "Remotely Piloted Aircraft Systems and a Wireless Sensors Network for Radiological Accidents." International Journal of Aerospace Engineering 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/9437165.

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In critical radiological situations, the real time information that we could get from the disaster area becomes of great importance. However, communication systems could be affected after a radiological accident. The proposed network in this research consists of distributed sensors in charge of collecting radiological data and ground vehicles that are sent to the nuclear plant at the moment of the accident to sense environmental and radiological information. Afterwards, data would be analyzed in the control center. Collected data by sensors and ground vehicles would be delivered to a control c

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Adamski, Marcin, Krzysztof Kurowski, Marek Mika, Wojciech Piątek, and Jan Węglarz. "Security Aspects in Resource Management Systems in Distributed Computing Environments." Foundations of Computing and Decision Sciences 42, no. 4 (2017): 299–313. http://dx.doi.org/10.1515/fcds-2017-0015.

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Abstract In many distributed computing systems, aspects related to security are getting more and more relevant. Security is ubiquitous and could not be treated as a separated problem or a challenge. In our opinion it should be considered in the context of resource management in distributed computing environments like Grids and Clouds, e.g. scheduled computations can be much delayed because of cyber-attacks, inefficient infrastructure or users valuable and sensitive data can be stolen even in the process of correct computation. To prevent such cases there is a need to introduce new evaluation m

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Beal, Jacob, and Mirko Viroli. "Space–time programming." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 373, no. 2046 (2015): 20140220. http://dx.doi.org/10.1098/rsta.2014.0220.

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Computation increasingly takes place not on an individual device, but distributed throughout a material or environment, whether it be a silicon surface, a network of wireless devices, a collection of biological cells or a programmable material. Emerging programming models embrace this reality and provide abstractions inspired by physics, such as computational fields, that allow such systems to be programmed holistically, rather than in terms of individual devices. This paper aims to provide a unified approach for the investigation and engineering of computations programmed with the aid of spac

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Costa, Daniel G., Francisco Vasques, Paulo Portugal, and Ana Aguiar. "A Distributed Multi-Tier Emergency Alerting System Exploiting Sensors-Based Event Detection to Support Smart City Applications." Sensors 20, no. 1 (2019): 170. http://dx.doi.org/10.3390/s20010170.

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The development of efficient sensing technologies and the maturation of the Internet of Things (IoT) paradigm and related protocols have considerably fostered the expansion of sensor-based monitoring applications. A great number of those applications has been developed to monitor a set of information for better perception of the environment, with some of them being dedicated to identifying emergency situations. Current IoT-based emergency systems have limitations when considering the broader scope of smart cities, exploiting one or just a few monitoring variables or even allocating high comput

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Lakehal, Abderrahim, Adel Alti, and Philippe Roose. "Context-Aware Multi-layered Ontology for Composite Situation Model in Pervasive Computing." Ingénierie des systèmes d information 25, no. 5 (2020): 543–58. http://dx.doi.org/10.18280/isi.250501.

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With the rapid advancement of technologies and analysis tools in the smart systems, enabling real-time context monitoring of user's living conditions and quality services delivery is increasing. Current studies in this area are focused on developing mobile applications with specific services, based on toolkit that allow developers to obtain context information from sensors. However, there exists a notable lack of ontology able to represent all the necessary context information starting from distributed users, and constantly changing environment. The modeling of user’s domains to represent dive

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Liu, Qing, Quan Bai, Corne Kloppers, et al. "An ontology-based knowledge management framework for a distributed water information system." Journal of Hydroinformatics 15, no. 4 (2012): 1169–88. http://dx.doi.org/10.2166/hydro.2012.152.

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With the increasing complexity of hydrologic problems, data collection and data analysis are often carried out in distributed heterogeneous systems. Therefore it is critical for users to determine the origin of data and its trustworthiness. Provenance describes the information life cycle of data products. It has been recognised as one of the most promising methods to improve data transparency. However, due to the complexity of the information life cycle involved, it is a challenge to query the provenance information which may be generated by distributed systems, with different vocabularies and

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Agrawal, Amrit, and Pranay Chaudhuri. "An Algorithm for Task Scheduling in Heterogeneous Distributed Systems Using Task Duplication." International Journal of Grid and High Performance Computing 3, no. 1 (2011): 89–97. http://dx.doi.org/10.4018/jghpc.2011010105.

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Task scheduling in heterogeneous parallel and distributed computing environment is a challenging problem. Applications identified by parallel tasks can be represented by directed-acyclic graphs (DAGs). Scheduling refers to the assignment of these parallel tasks on a set of bounded heterogeneous processors connected by high speed networks. Since task assignment is an NP-complete problem, instead of finding an exact solution, scheduling algorithms are developed based on heuristics, with the primary goal of minimizing the overall execution time of the application or schedule length. In this paper

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Shariatzadeh, Maryam, Amit Chandra, Samantha L. Wilson, et al. "Distributed automated manufacturing of pluripotent stem cell products." International Journal of Advanced Manufacturing Technology 106, no. 3-4 (2019): 1085–103. http://dx.doi.org/10.1007/s00170-019-04516-1.

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AbstractEstablishing how to effectively manufacture cell therapies is an industry-level problem. Decentralised manufacturing is of increasing importance, and its challenges are recognised by healthcare regulators with deviations and comparability issues receiving specific attention from them. This paper is the first to report the deviations and other risks encountered when implementing the expansion of human pluripotent stem cells (hPSCs) in an automated three international site–decentralised manufacturing setting. An experimental demonstrator project expanded a human embryonal carcinoma cell

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Ayari, Rabeh, Imane Hafnaoui, Alexandra Aguiar, et al. "Multi-objective mapping of full-mission simulators on heterogeneous distributed multi-processor systems." Journal of Defense Modeling and Simulation: Applications, Methodology, Technology 15, no. 4 (2016): 449–60. http://dx.doi.org/10.1177/1548512916657907.

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Full-mission simulators (FMSs) are considered the most critical simulation tool belonging to the flight simulator family. FMSs include a faithful reproduction of fighter aircraft. They are used by armed forces for design, training, and investigation purposes. Due to the criticality of their timing constraints and the high computation cost of the whole simulation, FMSs need to run in a high-performance computing system. Heterogeneous distributed systems are among the leading computing platforms and can guarantee a significant increase in performance by providing a large number of parallel power

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Preuveneers, Davy, Wouter Joosen, Jorge Bernal Bernabe, and Antonio Skarmeta. "Distributed Security Framework for Reliable Threat Intelligence Sharing." Security and Communication Networks 2020 (August 1, 2020): 1–15. http://dx.doi.org/10.1155/2020/8833765.

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Computer security incident response teams typically rely on threat intelligence platforms for information about sightings of cyber threat events and indicators of compromise. Other security building blocks, such as Network Intrusion Detection Systems, can leverage the information to prevent malicious adversaries from spreading malware across critical infrastructures. The effectiveness of threat intelligence platforms heavily depends on the willingness to share among organizations and the responsible use of sensitive information that may potentially harm the reputation of the reporting organiza

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Zhong, Yuxin, Mi Zhou, Jiangnan Li, et al. "Distributed Blockchain-Based Authentication and Authorization Protocol for Smart Grid." Wireless Communications and Mobile Computing 2021 (April 22, 2021): 1–15. http://dx.doi.org/10.1155/2021/5560621.

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Authentication and authorization (A & A) mechanisms are critical to the security of Internet of Things (IoT) applications. Smart grid system processing and exchanging data without human intervention, known as smart grids, are well-known as IoT scenarios. Entities in such smart grid systems need to identify and validate one another and ensure the integrity of data exchange mechanisms. However, at present, most commonly used A & A protocols are centralized, resulting in security risks such as information leaks, illegal access, and identity theft. In this study, we propose a new distribut

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Gureckis, Todd M., and Robert L. Goldstone. "Thinking in groups." Distributed Cognition 14, no. 2 (2006): 293–311. http://dx.doi.org/10.1075/pc.14.2.10gur.

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Is cognition an exclusive property of the individual or can groups have a mind of their own? We explore this question from the perspective of complex adaptive systems. One of the principal insights from this line of work is that rules that govern behavior at one level of analysis (the individual) can cause qualitatively different behavior at higher levels (the group). We review a number of behavioral studies from our lab that demonstrate how groups of people interacting in real-time can self-organize into adaptive, problem-solving group structures. A number of principles are derived concerning

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Liu, Xiyu, and Qianqian Ren. "Spiking Neural Membrane Computing Models." Processes 9, no. 5 (2021): 733. http://dx.doi.org/10.3390/pr9050733.

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As third-generation neural network models, spiking neural P systems (SNP) have distributed parallel computing capabilities with good performance. In recent years, artificial neural networks have received widespread attention due to their powerful information processing capabilities, which is an effective combination of a class of biological neural networks and mathematical models. However, SNP systems have some shortcomings in numerical calculations. In order to improve the incompletion of current SNP systems in dealing with certain real data technology in this paper, we use neural network str

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Neubert, Sebastian, Bernd Göde, Xiangyu Gu, Norbert Stoll, and Kerstin Thurow. "Potential of Laboratory Execution Systems (LESs) to Simplify the Application of Business Process Management Systems (BPMSs) in Laboratory Automation." SLAS TECHNOLOGY: Translating Life Sciences Innovation 22, no. 2 (2016): 206–16. http://dx.doi.org/10.1177/2211068216680331.

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Modern business process management (BPM) is increasingly interesting for laboratory automation. End-to-end workflow automation and improved top-level systems integration for information technology (IT) and automation systems are especially prominent objectives. With the ISO Standard Business Process Model and Notation (BPMN) 2.X, a system-independent and interdisciplinary accepted graphical process control notation is provided, allowing process analysis, while also being executable. The transfer of BPM solutions to structured laboratory automation places novel demands, for example, concerning

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