نتایج جستجو برای: evaluation schemes
تعداد نتایج: 919945 فیلتر نتایج به سال:
Implicit authentication (IA) schemes use behavioural biometrics to continuously and transparently authenticate mobile device users. Several IA schemes have been proposed by researchers which employ different behavioural features and provide reasonable detection accuracy. While these schemes work in principle, it is difficult to comprehend from these individual efforts which schemes work best (i...
In general, fault tolerant cache schemes can be classified into 3 different categories, namely, cache line disabling, replacement with spare block, and decoder reconfiguration without spare blocks. This paper re-examines each of those fault tolerant techniques with a fixed typical size and organization of L1 cache, through extended simulation using SPEC2000 benchmark on individual techniques. T...
the first step in studying dust events is the estimation of dust emission from sources. in this study, the simulations of the vertical dust flux (vdf) over iran by the mba (marticorena, bergametti, and alfaro) and shao schemes are compared. the mba scheme is energy-based and derived on the basis of energy balance between the kinetic energy of saltating particles and binding energy of the surfac...
This paper investigates the performance of various schemes for restoration of lightpaths in an optical mesh network. We consider schemes in which backup paths for links or paths are pro-computed, but wavelength assignment is either pro-computed (static) or done dynamically upon failure (dynamic). In static restoration we compare the performance of link and path restoration in terms of capacity ...
Video coding for Internet applications faces major challenges. Due to the heterogeneity of the network, users with very different access bandwidths to the Internet want to receive videos of the best possible quality. A good coding scheme for layered video pursues the following major goal: it maximises the subjective visual quality at a given bandwidth. In this article, we present four different...
OBJECTIVE This paper evaluated harness sizing schemes and anthropometric criteria for harness design applications. BACKGROUND Updated harness sizing systems are needed to accommodate diverse populations in the current workforce. METHOD Three-dimensional torso scan data and human-harness interfaces from 108 women and 108 men were digitally captured. Abounding box approach was employed to qua...
The goal of this paper is to analyze two polynomial evaluation schemes for multiple precision floating point arithmetic. Polynomials are used extensively in numerical computations (Taylor series for mathematical functions, root finding) but a rigorous bound of the error on the final result is seldom provided. We provide such an estimate for the two schemes and find how to reduce the number of o...
Separating sound sources in complex acoustical environment is an everyday challenge for our auditory system. Listeners with normal hearing are able to use binaural cues to solve this problem, but in impaired hearing these mechanisms are often disturbed. The aim of binaural noise reduction schemes in hearing aids is to improve the signal-to-noise ratio (SNR) in complex acoustic environments and ...
A description of the algorithms to evaluate the main parameters determining the pegormance of a Trellis-Coded Modulation (TCM) scheme is presented. TCM schemes are divided into classes that have an increasing degree of symmetry, so as to properly match the various algorithms to each class. The algorithms are compared in terms of computational complexity and tested on a set of multidimensional P...
This paper reports on investigations concerning the convergence of the reconstruction process in fractal coding schemes from a statistical point of view. For a rather general family of “fractal operators” a necessary and sufficient condition for the convergence based on the spectral radius of the fractal operator is provided. Emerging from this condition the probability density function (pdf) o...
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