Large scale data sharing is important, especially now, with more open societies of components such as Smart Cities and the Smart Homes creating data sharing ecosystems. We propose that access to data and knowledge be ...
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ISBN:
(纸本)9781450356497
Large scale data sharing is important, especially now, with more open societies of components such as Smart Cities and the Smart Homes creating data sharing ecosystems. We propose that access to data and knowledge be controlled through fine-grained, user specified explicitly represented policies. Fine-grained policies allow stakeholders to have a more precise level of control over who, when, and how their data is accessed. We propose a realisation of a policy language, and supporting socially aware mechanisms, to facilitate data sharing in a distributed environment.
this paper addresses the challenges of providing customized collaboration support to teams of experts. Current groupware systems only provide support for workflow-based collaboration, avoiding new forms of collaborati...
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ISBN:
(纸本)9781450314862
this paper addresses the challenges of providing customized collaboration support to teams of experts. Current groupware systems only provide support for workflow-based collaboration, avoiding new forms of collaboration such as emergent collaboration. therefore this paper proposes a elastic collaboration approach and its implementation in a groupware system.
this paper is mainly concerned withthe problem of distributed state estimation of nonlinear systems over a wireless sensor network under restricted bit rate. Taking into account the network transmission burden, an ev...
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ISBN:
(数字)9781665495721
ISBN:
(纸本)9781665495721
this paper is mainly concerned withthe problem of distributed state estimation of nonlinear systems over a wireless sensor network under restricted bit rate. Taking into account the network transmission burden, an event-based encoding and decoding method is proposed to schedule the transmission measurement of each sensor. Under a synchronism schedule, the distributed filtering is derived in this paper. By constructing the Lyapunov function, sufficient conditions of the existence of distributed filtering are given. Finally, a simulation example is presented to certify the effectiveness of the proposed algorithm.
IT system and application management is critical to business use of IT systems. distributedevent processing is core to application and systems management, even for applications that are not "event driven." ...
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In this paper, we define and formulate various policies for load management in distributed video servers. We propose a predictive placement policy that determines the degree of replication necessary for popular videos...
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ISBN:
(纸本)0818678135
In this paper, we define and formulate various policies for load management in distributed video servers. We propose a predictive placement policy that determines the degree of replication necessary for popular videos using a cost-based optimization procedure based on a priori predictions of expected subscriber requests, For scheduling requests, we propose an adaptive scheduling policy that compares the relative utilization of resources in a video server to determine an assignment of requests to replicas. To optimize storage utilization, toe also devise methods for dereplication of videos based on changes in their popularities and in server usage patterns. Performance evaluations indicate that a load management procedure which uses re judicious combination of the different policies performs best for most server configurations.
the proceedings contain 27 papers. the topics discussed include: interoperability, composability, and their implications for distributed simulation: towards mathematical foundations of simulation interoperability;Java...
ISBN:
(纸本)9780769551388
the proceedings contain 27 papers. the topics discussed include: interoperability, composability, and their implications for distributed simulation: towards mathematical foundations of simulation interoperability;JavaScript distributed agent based discrete event simulation;HybridSim: a modeling and co-simulation toolchain for cyber-physical systems;simDSN: a simulation platform for the sensing coverage problem in directional sensor networks;service abstractions with fault virtualization for distributed network infrastructures;distributed simulation of heterogeneous and real-time systems;online client assignment in dynamic real-time distributed interactive applications;dynamic voltage scaling scheduling on power-aware clusters under power constraints;self-assessment and reconfiguration methods for autonomous cloud-based network systems;and developing a distributed agent-based and DES simulation using poRTIco and repast.
Regulated enterprises often seek to extend their workloads into the cloud, but are impeded by integration concerns relating to security, governance and compliance. Further, enterprises running mission-critical applica...
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ISBN:
(纸本)9798400711817
Regulated enterprises often seek to extend their workloads into the cloud, but are impeded by integration concerns relating to security, governance and compliance. Further, enterprises running mission-critical applications, face throughput and latency challenges due to cloud integration overheads. We present Hybrid Cloud Connector to accelerate on-prem to cloud integration by handling non-functional aspects in lieu of the application, reducing complexity, and centralizing administration via a policy-driven control point.
Keeping track of protocol, node, or system states in a distributed network is non-trivial. However, state tracking combined with predefined allowed transitions for each state is essential to verify that nodes adhere t...
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ISBN:
(纸本)9798400704437
Keeping track of protocol, node, or system states in a distributed network is non-trivial. However, state tracking combined with predefined allowed transitions for each state is essential to verify that nodes adhere to the specification and, finally, to detect faulty or malicious nodes. Typically, existing systems only consider context in network flows instead of the full states or use a simplified state model. therefore, we examine challenges and factors influencing a state tracking and verification system.
the proliferation of smart devices, sensors, autonomous robots, drones, and other similar instruments have profoundly changed the way of implementing and deploying systems in industrial and home environments, for dive...
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