Cyber-Physical Systems (CPS) provides a smart infrastructure connecting abstract computational artifacts with the physical world. This paper presents some challenges for developing distributedreal-time Cyber-Physical...
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Integration of system components is a crucial challenge in the design of embedded real-time systems, as complex non-functional interdependencies may exist. [20] presented a framework, enabling autonomous verification ...
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With advances in technology, the issue of object detection and recognition has gained significant recognition in the field of computer vision. There are currently several algorithms that address this growing demand, n...
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ISBN:
(纸本)9798350371291;9798350371284
With advances in technology, the issue of object detection and recognition has gained significant recognition in the field of computer vision. There are currently several algorithms that address this growing demand, namely region-based convolutional neural networks (R-CNN) and the You Only Look Once (YOLO) technique. The R-CNN technique encompasses a range of methodologies designed to address object localization and recognition tasks. In addition, the YOLO technique is a distinct set of methodologies that focuses primarily on real-timeobject recognition and fast performance. The R-CNN and YOLO techniques, in particular, have undergone subsequent improvements, resulting in higher levels of accuracy and performance than their predecessors. The aim of this article is to review these various object detection methods based on CNN.
Service overlays that support distributed stream processing applications are increasingly being deployed in wide-area environments. The inherent heterogeneous, dynamic and large-scale nature of these systems makes it ...
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ISBN:
(纸本)076952561X
Service overlays that support distributed stream processing applications are increasingly being deployed in wide-area environments. The inherent heterogeneous, dynamic and large-scale nature of these systems makes it difficult to meet the Quality of Service (QoS) requirements of the distributed stream processing applications. In this paper we address the load balancing problem for distributed stream processing applications and present a decentralized and adaptive algorithm that allows the composition of distributed stream processing applications on the fly across a large-scale system, while satisfying their QoS demands. The algorithm fairly distributes the load on the resources and adapts dynamically to changes in the resource utilization or the QoS requirements of the applications. Our experimental results demonstrate the scalability, efficiency and performance of our approach.
Recently, new trends in application development for distributed platforms, such as the composable services model, attempt to provide more flexibility in system design, deployment and execution. Such trends, and partic...
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ISBN:
(纸本)9780769527659
Recently, new trends in application development for distributed platforms, such as the composable services model, attempt to provide more flexibility in system design, deployment and execution. Such trends, and particularly the referred composable services model, can also be beneficial in real-timedistributed embedded systems, also providing a means to support more adaptive behaviors, reacting to the execution environment or coping with system. reconfiguration. This paper explores a relatively new direction, which is the extension of the service-based model to dynamic, i.e. at run-time, composition in real-timedistributed environments, in order to support the level of flexibility and adaptibility referred above. The paper proposes an architecture to support such dynamic service composition that is based on the Flexible time Triggered communication paradigm (FTT). To achieve the desired goal, we also redefine the concepts of service and service-based application in the concept of the FTT paradigm. Finally, we show experimental results obtained with a prototype implementation of the proposed architecture that confirm its feasibility and good temporal behavior
This paper presents the evaluation of a multithread distributedreal-timeobject-oriented platform. A communication API was developed to increase functionalities of an API that implements the real-time Specification f...
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Many real-time systems use preemptive priorities in their internals to guarantee certain real-time performance. This includes technologies that range from RTSJ (The real- time Specification for Java) to middleware lik...
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The paper presents an innovative hierarchical feedback adaptation method that efficiently controls the dynamic QoS behavior of realtimedistributed data flow applications, such as sensor based data streams or mission...
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Java's popularity, facilities and platform independence have made it an interesting language for the realtime community. The RTSJ (real-time Specification for Java) is a Java extension to allow the development of...
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ISBN:
(纸本)0769523560
Java's popularity, facilities and platform independence have made it an interesting language for the realtime community. The RTSJ (real-time Specification for Java) is a Java extension to allow the development of real-time systems. RTSJ does not supply any support for the development of real-timedistributed systems. The goal of this work is to define support for this type of systems, based on RMI (Remote Method Invocation). However, the high diversity of real-time systems implies that there is not a single RT-RMI definition that satisfies their requirements. This article presents the basics of two real-time RMI approaches: safety critical RMI, to support hard real-time and high integrity requirements, and Quality of Service RMI for soft real-time systems, which is based on resource reservation to provide some minimal required quality.
The decomposition of large systems into parts is a general principle of software design. Even more, in the scope of distributed systems, a partition of the whole system into distributable components is necessary. Deci...
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