Complexity of real-life systems requires the implementation phase to be preceded by analysis and design. A model employed by a method, to be useful, should be complete, abstract, unambiguous and coherent. Unfortunatel...
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A new high-density multiple-valued content-addressable memory (CAM) is proposed to perform highly parallel search operations in a limited chip area, The number of cells in the CAM is reduced by the use of multiple-val...
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A new high-density multiple-valued content-addressable memory (CAM) is proposed to perform highly parallel search operations in a limited chip area, The number of cells in the CAM is reduced by the use of multiple-valued data representation, Moreover, multiple-valued stored data correspond to the threshold voltage of a floating-gate MOS transistor, so that the cell circuit can be designed using only a single transistor. As a result, the cell area of the proposed four-valued CAM is reduced to 14% of that of a conventional dynamic binary CAM, and its performance is about 5.4-times higher than that of the corresponding binary one under a 0.8-mu m standard EEPROM technology.
Many object oriented methods have assumed class based approaches, without considering prototype based ones. Some authors, while admitting prototypes as a useful concept, only envision their application in early phases...
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We present two parallel algorithms for finding a maximal set of paths in a given undirected graph. The former runs in O(log n) expected time with O(n + m) processors on a CRCW PRAM. The latter runs in O(log2 n) time w...
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A novel approach for the recognition of 2D shapes is presented based on the perceptual organization of descriptive-boundary primitives of objects. The system has three components: (1) a set of partition and grouping r...
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ISBN:
(纸本)0780336291
A novel approach for the recognition of 2D shapes is presented based on the perceptual organization of descriptive-boundary primitives of objects. The system has three components: (1) a set of partition and grouping rules for extracting and manipulating the primitives, (2) a control structure of the processes and (3) a representation scheme based on a perceptual hierarchy.
Summary form only given. In recent years, much attention has been given to wavelength-division multiplexed (WDM) systems due to their ability to maximize lightwave communications. In practice, the combined effects of ...
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ISBN:
(纸本)1557524432
Summary form only given. In recent years, much attention has been given to wavelength-division multiplexed (WDM) systems due to their ability to maximize lightwave communications. In practice, the combined effects of linear dispersion and nonlinear self phase modulation impose severe limitations on the long-haul performance of non-return-to-zero (NRZ) systems. The aim of this presentation is to provide an analytic description of the nonlinear pulse evolution in a NRZ communications system under a dispersion-management scheme.
In this paper, we discuss measures of nonspecificity and how to use them in order to solve an important problem of possibilistic graphical modelling, which is to find an optimal hypertree decomposition of a multivaria...
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In this paper, we discuss measures of nonspecificity and how to use them in order to solve an important problem of possibilistic graphical modelling, which is to find an optimal hypertree decomposition of a multivariate possibility distribution such that the information loss occurring is minimized.
Data-parallel languages such as High Performance Fortran (HPF) present a simple execution model in which a single thread of control performs high-level operations on distributed arrays. These languages can greatly eas...
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Data-parallel languages such as High Performance Fortran (HPF) present a simple execution model in which a single thread of control performs high-level operations on distributed arrays. These languages can greatly ease the development of parallel programs. Yet there are large classes of applications for which a mixture of task and data parallelism is most appropriate. Such applications can be structured as collections of data-parallel tasks that communicate by using explicit message passing. Because the Message Passing Interface (MPI) defines standardized, familiar mechanisms for this communication model, we propose that HPF tasks communicate by making calls to a coordination library that provides an HPF binding for MPI. The semantics of a communication interface for sequential languages can be ambiguous when the interface is invoked from a parallel language; we show how these ambiguities can be resolved by describing one possible HPF binding for MPI. We then present the design of a library that implements this binding, discuss issues that influenced our design decisions, and evaluate the performance of a prototype HPF/MPI library using a communications microbenchmark and application kernel. Finally, we discuss how MPI features might be incorporated into our design framework.
The method of complexity regularization is applied to one hidden-layer radial basis function networks to derive regression estimation bounds and convergence rates for classification. Bounds on the expected risk in ter...
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The method of complexity regularization is applied to one hidden-layer radial basis function networks to derive regression estimation bounds and convergence rates for classification. Bounds on the expected risk in terms of the training sample size are obtained for a large class of activation functions, namely functions of bounded variation. Rates of convergence to the optimal loss are also derived.
In this paper, a fuzzy logic system for analog fault diagnosis is introduced. The ability of fuzzy logic to encode structured knowledge in a numerical framework is exploited. Circuit measurements are properly fuzzifie...
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In this paper, a fuzzy logic system for analog fault diagnosis is introduced. The ability of fuzzy logic to encode structured knowledge in a numerical framework is exploited. Circuit measurements are properly fuzzified. Fuzzy rule bases are constructed such that the behaviour of the circuit under test in both fault and fault-free situations is characterized. The outputs of the fuzzy rule bases are then defuzzified to recover crisp values for circuit elements. A new fault diagnosis procedure that utilizes the proposed fuzzy logic system is proposed. An illustrative example to demonstrate the potential of this procedure in fault isolation is presented.
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