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Gracefully Degrading Gathering in Dynamic Rings
[article]
2018
arXiv
pre-print
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Motivated by a set of impossibility results related to the dynamics of the ring, we propose a gracefully degrading gathering algorithm. ...
Gracefully degrading algorithms [Biely \etal, TCS 2018] are designed to circumvent impossibility results in dynamic systems by adapting themselves to the dynamics. ...
Gracefully Degrading Gathering This section presents GDG, our gracefully degrading gathering algorithm, that aims to solve different variants of the gathering problem under various dynamics (refer to ...
arXiv:1805.05137v2
fatcat:br76nsersrazbmmknylrv3hrwu
Gracefully Degrading Gathering in Dynamic Rings
[chapter]
2018
Lecture Notes in Computer Science
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Motivated by a set of impossibility results related to the dynamics of the ring, we propose a gracefully degrading gathering algorithm. ...
Gracefully degrading algorithms [Biely et al., TCS 2018] are designed to circumvent impossibility results in dynamic systems by adapting themselves to the dynamics. ...
Gracefully Degrading Gathering This section presents GDG, our gracefully degrading gathering algorithm, that aims to solve different variants of the gathering problem under various dynamics (refer to ...
doi:10.1007/978-3-030-03232-6_23
fatcat:mfxhosfmhfaunmhkuy7ztxk25y
Place Recognition with Event-based Cameras and a Neural Implementation of SeqSLAM
[article]
2015
arXiv
pre-print
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Event-based cameras offer much potential to the fields of robotics and computer vision, in part due to their large dynamic range and extremely high "frame rates". ...
These attributes make them, at least in theory, particularly suitable for enabling tasks like navigation and mapping on high speed robotic platforms under challenging lighting conditions, a task which ...
degradation in matching performance. ...
arXiv:1505.04548v1
fatcat:rk5swvdvebdb7b3okq6lx57iqu
A Scalable Version of the Navy Operational Global Atmospheric Prediction System Spectral Forecast Model
2000
Scientific Programming
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is being run on a Cray C90 in a multi-tasked configuration. ...
A scalable NOGAPS forecast model has been developed by NRL in anticipation of a FNMOC C90 replacement in about 2001, as well as for current NOGAPS research requirements to run on DOD High-Performance Computing ...
Of particular importance is alias-free representation of the quadratic non-linear terms in the dynamical equations. ...
doi:10.1155/2000/538260
fatcat:4dwg434ebrg7jhydncc7bznvii
Dynamic Reconfiguration of 3D Photonic Networks-on-Chip for Maximizing Performance and Improving Fault Tolerance
2012
2012 45th Annual IEEE/ACM International Symposium on Microarchitecture
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In addition to improving performance, reconfiguration can re-allocate bandwidth around faulty channels, thereby increasing the resiliency of the architecture and gracefully degrading performance. ...
As power dissipation in future Networks-on-Chips (NoCs) is projected to be a major bottleneck, researchers are actively engaged in developing alternate power-efficient technology solutions. ...
gracefully. ...
doi:10.1109/micro.2012.34
dblp:conf/micro/MorrisKL12
fatcat:wx7kffsczberjn7zfn67mqsyeq
Burst photography for high dynamic range and low-light imaging on mobile cameras
2016
ACM Transactions on Graphics
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Abstract Cell phone cameras have small apertures, which limits the number of photons they can gather, leading to noisy images in low light. ...
While our pipeline excels in low-light and high-dynamic-range scenes (for an example of the latter see figure 10), it is computationally efficient and reliably artifact-free, so it can be deployed on a ...
Failure cases Despite generally good image quality, our system does fail in extreme situations. We have designed it to degrade gracefully in these situations, but we wish it were even better. ...
doi:10.1145/2980179.2980254
fatcat:osxcads45vdvniilgub7fkr6pq
PALTA: Peer-to-peer AdaptabLe Topology for Ambient intelligence
2008
2008 International Conference of the Chilean Computer Science Society
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This paper introduces PALTA, a self-adapting hybrid topology capable of dynamically adjusting its configuration by using a combination of existing topologies. ...
The Relaxed-Ring does not make a difference between nodes gracefully leaving the network and nodes crashing. This makes the topology more fault-tolerant. ...
In order to measure the network efficiency according to our requirements, we gather information from Active connections The average number of active links in the connected peers. ...
doi:10.1109/sccc.2008.16
dblp:conf/sccc/CadizMVMRM08
fatcat:bprms3ebqzgkhfxex52w5ffmfm
QoS Provisioning Dynamic Connection-Admission Control for Multimedia Wireless Networks Using a Hopfield Neural Network
2004
IEEE Transactions on Vehicular Technology
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In the case of congestion (overload), the algorithm uniformly degrades the QoS levels of the existing connections (but only slightly) in order to spare some resources for serving new or handoff connections ...
This paper presents a quality-of-service (QoS) provisioning dynamic connection-admission control (CAC) algorithm for multimedia wireless networks. ...
In other words, the algorithm gracefully degrades each service quality a little in order to provide some bandwidth for new or handoff connections (in the overload case). ...
doi:10.1109/tvt.2003.822000
fatcat:24qki54frfhq7mi2l3ndieih6e
Design and implementation of a high quality video distribution system using XTP reliable multicast
[chapter]
1994
Lecture Notes in Computer Science
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XTP multicast provides in-order, multipoint delivery of packet streams with user-selectable options for enabling control algorithms and managing dynamic group membership in the multicast connection. ...
In our design the multicast video application coding need only handle bu ering for end-to-end synchronization. ...
Acknowledgments We a c knowledge the work of Fraser Street in producing the rst version of this video system and of James McNabb who provided the XTP list-based multicast code. ...
doi:10.1007/3-540-58494-3_31
fatcat:psxeklksuvg6lgjohcjiucphvm
Collective operations in NEC's high-performance MPI libraries
2006
Proceedings 20th IEEE International Parallel & Distributed Processing Symposium
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We discuss in more detail the implementation of MPI Barrier, MPI Bcast, the MPI reduction collectives, MPI Alltoall, and the gather/scatter collectives. ...
We give an overview of the algorithms and implementations in the high-performance MPI libraries MPI/SX and MPI/ES of some of the most important collective operations of MPI (the Message Passing Interface ...
on the Earth Simulator in Yokohama, Japan. ...
doi:10.1109/ipdps.2006.1639334
dblp:conf/ipps/RitzdorfT06
fatcat:ajxb7dntqfhnfgk5bcq453ae2i
Efficiency and late data choice in a user-kernel interface for congestion-controlled datagrams
2005
Multimedia Computing and Networking 2005
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In this paper, we present a novel user-kernel interface for congestion-controlled datagram protocols that is both efficient and flexible. Our API consists of a packet ring located in shared memory. ...
Applications enqueues packet descriptors directly onto the ring, without crossing the user-kernel boundary, and the kernel dequeues packets from the ring and sends them. ...
The DCCP application, however, can adaptively change the ratio to according to very different network conditions, which results in only gracefully degraded video quality. ...
doi:10.1117/12.592281
fatcat:mpbulxbfkvgt7aig6h2utexdwe
Intuitive Network Applications: Learning for Personalized Converged Services Involving Social Networks
2007
Journal of Computers
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This paper describes key aspects of a new initiative at Bell Labs, called Intuitive Network Applications (INA), which aims to combine human factors and automated learning techniques, in order to gather ...
The convergence of the wireline telecom, wireless telecom, and internet networks and the services they provide offers tremendous opportunities in services personalization. ...
The application (and the learned preferences) must be able to degrade gracefully under partial or incomplete information. The available information should be stored in the Learning Log of Figure 1 . ...
doi:10.4304/jcp.2.6.72-84
fatcat:4r3nl4h6zraw7cenz7l2wimw4q
Employing description logics in Ambient Intelligence for modeling and reasoning about complex situations
2009
Journal of Ambient Intelligence and Smart Environments
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The context information gathered by these systems comes with imperfections such as incompleteness or incorrectness. ...
These characteristics need to be handled gracefully by the Ambient Intelligence system. Moreover, the represented information must allow for a fast and reliable recognition of the current situation. ...
The research work presented in this article was partially sponsored by Siemens AG. ...
doi:10.3233/ais-2009-0032
fatcat:6lu3l54fdzh3xj2nf2l4uig2oe
OPSENET: A Security-Enabled Routing Scheme for a System of Optical Sensor Networks
2006
2006 3rd International Conference on Broadband Communications, Networks and Systems
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An important performance metric of OPSENET is its low byte overhead, and graceful degradation with the number of compromised nodes in the network. ...
In this paper we introduce OPSENET, a novel and efficient protocol that facilitates secure routing in directional optical sensor networks. ...
Our analysis show that the byte overhead of OPSENET is comparable with non-secure routing in an OSN, and the network gracefully degrades with the number of compromised nodes in the network. ...
doi:10.1109/broadnets.2006.4374297
dblp:conf/broadnets/OkoraforK06
fatcat:nxft7flplfdd7j54sxpuvmrfoy
Performance and dependability of structured peer-to-peer overlays
2004
International Conference on Dependable Systems and Networks, 2004
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However, there are concerns about the performance and dependability of these overlays in realistic environments. ...
This paper presents techniques that continuously detect faults and repair the overlay to achieve high dependability and good performance in realistic environments. ...
MSPastry also performs well and its performance degrades gracefully as the node failure rate and the link loss rate increase. ...
doi:10.1109/dsn.2004.1311872
dblp:conf/dsn/CastroCR04
fatcat:fzqyx4qstzarvkx5nr4nc7xyq4
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