Human perception is a complex nonlinear dynamics. On the one hand it is periodic dynamics and on the other hand it is chaotic. Thus, we wish to propose a hybrid - the spatial chaotic dynamics for the associative recal...
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Human perception is a complex nonlinear dynamics. On the one hand it is periodic dynamics and on the other hand it is chaotic. Thus, we wish to propose a hybrid - the spatial chaotic dynamics for the associative recall to retrieve patterns, similar to Walter Freeman's discovery, and the fixed point dynamics for memory storage, similar to Hopfield and Grossberg's discoveries. In this model, each neuron in the network could be a chaotic map, whose phase space is divided into two states: one is periodic dynamic state with period-V, which is used to represent a V-value retrieved pattern;another is chaotic dynamic state. Firstly, patterns are stored in the memory by fixed point learning algorithm. In the retrieving process, all neurons are initially set in the chaotic region. Due to the ergodicity property of chaos, each neuron will approximate the periodic points covered by the chaotic attractor at same instants. When this occurs, the control is activated to drive the dynamic of each neuron to their corresponding stable periodic point. computer simulations confirm the theoretical prediction.
Multiway trees, also known as m-ary search trees, are data structures generalising binary search trees. A common probability model for analysing the behaviour of these structures is the random permutation model. The p...
Recently, a discussion came up dealing with the frame copied indicator in the frame status sequence of FDDI. This indicator shows whether or not the destination has copied the frame and this way allows the sender to r...
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Recently, a discussion came up dealing with the frame copied indicator in the frame status sequence of FDDI. This indicator shows whether or not the destination has copied the frame and this way allows the sender to react in a proper way. However, in interconnected networks the destination node may represent a large number of destinations with different addresses making it difficult to check within a very short time whether a certain packet is to be copied and the indicator is to be set. The paper discusses the effect of using or not using the frame copied indicator. Additionally, it proposes a class of new congestion control strategies for FDDI.< >
Chemical reactions are described by edge relabeling graph transformation rules, in which a substrate chemical graph is transformed into a product chemical graph by breaking existing bonds and creating new bonds betwee...
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We study the impact of the selection of flow control functions in high-speed transport protocols on the performance for both nonbursty client-server traffic and bulk-data communication such as file transfer in a local...
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We study the impact of the selection of flow control functions in high-speed transport protocols on the performance for both nonbursty client-server traffic and bulk-data communication such as file transfer in a local high-speed environment. Therefore, we consider a workstation cluster based on a FDDI network. Although there are some differences in the behaviour all flow control and retransmission schemes studied (Go back N, Selective Repeat, Selective Retransmission) are able to provide the same performance in the local environment. Here an additionally used rate control scheme is able to reduce a high buffer utilization of a receiving station for a bulk-data transfer without any impact on the transfer delay and throughput. In the conclusion we discuss both functionality and implementational aspects of transport protocols.< >
In this paper we propose a new scheme to extract skeleton of Ribbon-like shape with a novel wavelet function. It consists of two phases, namely: based on these perfect properties of new wavelet function, and symmetry ...
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ISBN:
(纸本)0780375084
In this paper we propose a new scheme to extract skeleton of Ribbon-like shape with a novel wavelet function. It consists of two phases, namely: based on these perfect properties of new wavelet function, and symmetry analyses of maxima moduli of wavelet transform are given. Midpoints of all pairs of contour elements are connected to generate a skeleton of the shape, which is defined as wavelet skeleton. Four basic criteria for modifying the artifacts of wavelet skeleton are presented. A corresponding algorithm is developed, and the experimental results are shown that this algorithm is capable of extracting exactly skeleton of Ribbon-like shape with different widths as well as different grey-levels.
We study the throughput characteristics of a FDDI workstation cluster installed at the University of Paderborn. We compare theoretical results to the performance really available to the user at the service access poin...
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We study the throughput characteristics of a FDDI workstation cluster installed at the University of Paderborn. We compare theoretical results to the performance really available to the user at the service access point to TCP and UDP. Furthermore, we compare the performance for two difficult operating systems: we consider the SUN-OS based on BSD and the new Solaris 2.3 developed for multiprocessor environments. The measurement results showed a maximum throughput of less than 60 Mbps which is still considerably less than the bandwidth promised by FDDI vendors. Moreover, it becomes clear that high throughput absolutely requires the transmission of large frames. We also briefly address the current discussion on higher speed LANs within IEEE 802.< >
Cloud Computing is a type of distributed system that is usually based on the services offered to the user based on SLA contract. In this case, the implementation of a fault-tolerant system that ensures the reliability...
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Industrial-size specifications/models (whose state space is often infinite) can not be model checked in a direct way - A verification model of a system is model checked instead. Program transformation is a way to buil...
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