The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper presents a new classification model in which a classifier is built upon predictive association rules (PARs) and the maximum entropy principle (maxent). In this model, PARs can be seen as confident statistical patterns discovered from training data with strong dependencies and correlations among data items. Maxent, on the other hand, is an approach to build an estimated distribution having...
Possibility of real time simulator of three-dimensional acoustic field in the time domain is discussed. Based on the discrete Huygens’ model (DHM), a digital equivalent circuit is developed. DHM elements are described by hardware description language (HDL) in the fixed-point arithmetic. It is estimated that the real time simulation of 1 m$3$ sound field is possible using ten-odd FPGA chips, while...
A Hierarchical Torus Network (HTN) is a 2D-torus network of multiple basic modules, in which the basic modules are 3D-torus networks that are hierarchically interconnected for higher level networks. The dynamic communication performance of the HTN using the dimension-order routing under common traffic patterns have been evaluated, and have been shown to be good. However, dynamic communication performance...
Modeling acoustical behavior in a room is complicated and computationally intense. Many methods have been proposed to analyze the distribution of sound field by using computer simulation. However, the procedure is time-consuming with sound space increasing. In this paper, a hardware solution based on Digital Huygens' Model (DHM) and Field Programmable Gate Array (FPGA) technology is proposed to simulate...
The static network performance and dynamic communication performance of the Hierarchical Torus Network (HTN) using dimension-order routing algorithm have already been evaluated and shown to be superior to the performance of other interconnection networks. However, the assessment of the dynamic communication performance improvement of HTN by the efficient use of both the physical link and virtual channels...
A Modified Hierarchical 3D-Torus (MH3DT) network is a 3D-torus network of multiple basic modules, in which the basic modules are themselves 3D-torus networks which are hierarchically interconnected into higher-level networks. The static network performance of the MH3DT has already been studied and has been shown to be good. Dynamic communication performance has been evaluated using dimension-order...
The capability to predict the host load of a system is significant for computational grids to make efficient use of shared resources. This paper attempts to improve the accuracy of host load predictions by applying a neural network predictor to reach the goal of best performance and load balance. We describe feasibility of the proposed predictor in a dynamic environment, and perform experimental evaluation...
In this paper, we present a deadlock-free routing algorithm for the Tori connected mESH (TESH) network using 2 virtual channels - 2 being the minimum number for dimension-order routing - and evaluate the networks dynamic communication performance under the hot-spot traffic pattern, using the proposed routing algorithm. We evaluate the dynamic communication performance of TESH, mesh, and torus networks...
Interconnection networks play a crucial role in the performance of massively parallel computers. Hierarchical interconnection networks provide high performance at low cost by exploring the locality that exists in the communication patterns of massively parallel computer systems. The Tori-connected mESH (TESH) Network is a 2D-torus network of multiple basic modules, in which the basic modules are 2D-mesh...
The scheduling of real-time tasks with fault-tolerant requirements has been an important problem in multiprocessor systems. Primary-backup (PB) approach is often used as a fault-tolerant technique to guarantee the deadlines of tasks despite the presence of faults. In this paper we propose a PB-based task scheduling approach, wherein an allocation parameter is used to search the available time slots...
In multiprocessor systems, redundant scheduling is a technique that trades processing power for increased reliability. One approach, called primary-backup task scheduling, is often used in real-time multiprocessor systems to ensure that deadlines are met in spite of faults. Briefly, it consists in scheduling a secondary task conditionally, in such a way that the secondary task actually gets executed...
In this paper, we study the dynamic multicast routing problem for WDM networks with sparse light splitting. We propose a hybrid multicast algorithm based on the combination of mobile agent technique and genetic algorithm. Simulation results based upon the ns-2 network simulator indicate that the proposed algorithm significantly outperforms the available algorithms in terms of blocking probability.
In a practical computational grid system, task scheduling in local resource management normally is affected by the arrival rate of tasks and the sizes of tasks, that is, the scheduler must deal with the dynamic task flow. On the long-term viewpoint it is necessary and possible to improve the performance of the scheduler serving the dynamic task flow. In this paper we developed a scheduling strategy...
The quantitative analysis of trace elements is one of important keys for studying numerous processes of research interest in the environmental science. Here, we present the results of a preliminary study for the quantitative analysis of five trace elements retained in a single raindrop. To prepare the reference standards with uniform thickness, Si, KCl, CaF 2 and Fe reference reagents were...
This paper addresses reconfigurations and the cooling of a 3D stacked mesh array by considering thermo-radiation. We propose a heuristic replacement policy to avoid defects on a wafer by moving hot processing elements (PEs) toward edge of the wafer to cool efficiently. Introducing a thermo-radiation model for the 3D stacked complex, the reconfiguration performance and thermo-radiation of the 3D stacked...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.