Up today, there are very few methods providing quality of service (QoS) definition, yet more, no standard allowing its measurement. Since it is almost a subjective concept, many researchers tried to look for QoS proje...
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ISBN:
(纸本)9781538681688;9781538681671
Up today, there are very few methods providing quality of service (QoS) definition, yet more, no standard allowing its measurement. Since it is almost a subjective concept, many researchers tried to look for QoS projection on quantifiable spaces to make it measurable. Many applications in vehicular ad hoc networks (VANET) require different QoS features, however, few attempts studied QoS parameters in one model. In this paper, we develop a QoS measuring system through fuzzy-logic projection. the proposed hierarchical fuzzy inference system allows to evaluate the network QoS as a crisp value.
In FPGAs, routing resources are fixed and their usage is constrained by the location of antifuses. this severely limits the ability to make accurate wirability and timing predictions at the placement level. there is a...
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In FPGAs, routing resources are fixed and their usage is constrained by the location of antifuses. this severely limits the ability to make accurate wirability and timing predictions at the placement level. there is a need, therefore, for a layout flow in which an incremental placer changes the layout based on post-layout timing and wirability analysis. In this paper we consider such an incremental placer. Up to 29% improvement in timing has been obtained for a set of industrial designs and MCNC benchmark examples.
this paper presents a fuzzy logic (FL) approach for electrical load management in touring buses. the backwards simulation modeling technique is utilized, based on the VECTO drive cycle to obtain the powertrain model. ...
this paper presents a fuzzy logic (FL) approach for electrical load management in touring buses. the backwards simulation modeling technique is utilized, based on the VECTO drive cycle to obtain the powertrain model. the FL algorithm determines the applied voltage on the battery, based on the Brake Specific Fuel Consumption (BSFC) map and the battery state of charge. the outcome of this strategy, in terms of fuel consumption, is compared to the conventional battery charging approach. Based on the simulation results, we conclude that the proposed algorithm improves the fuel economy, compared to the conventional method.
the problem of the optimization of complex data-paths relative to a repertoire of specified operations is discussed. Data-paths can be simplified if interconnections are functionally redundant. Redundancy is detected ...
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the problem of the optimization of complex data-paths relative to a repertoire of specified operations is discussed. Data-paths can be simplified if interconnections are functionally redundant. Redundancy is detected by means of the universal quantification of ROBDD representations of the data-path and of the specified operations. the full logical complexity of ALU's described at the gate-level is considered. A 0-1 ILP formulation of the minimization problem is given and solved by means of ROBDD's. A solution of the prelogic rectification problem for control-signals is presented.
A computer-based system is used for measurement of partial discharges (PD) and a modular fuzzy logic (MFL) system has been developed whereby a separate FL engine was constructed for recognition of each type of PD faul...
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A computer-based system is used for measurement of partial discharges (PD) and a modular fuzzy logic (MFL) system has been developed whereby a separate FL engine was constructed for recognition of each type of PD fault. the input parameters are selected from the set of integrated quantities and statistical moments which are commonly used to characterise the phase-resolved PD patterns.
this paper discusses an asynchronous event-based object-oriented framework, OVOPS, employing the usage of design patterns to incorporate and interwork with a CORBA enabled environment. Distributed programming is const...
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Dynamic programming has previously been used when measuring Lumen Diameter (LD) and Intima-Media thickness (IMT) in single frame ultrasound carotid artery images [1]. An extension to multiframe detection of that proce...
Dynamic programming has previously been used when measuring Lumen Diameter (LD) and Intima-Media thickness (IMT) in single frame ultrasound carotid artery images [1]. An extension to multiframe detection of that procedure is proposed in this paper. Our new method transforms a three dimensional problem into multiple two dimensional problems that can again be solved by dynamic programming. First, several “candidate boundaries” are detected in each image. then, one boundary from each image in the sequence is selected in such a way that the sequence of boundaries is optimal among the considered possibilities. A model of the movements of the boundaries is used in the second step. Our proposed method shows promising performance on both synthetic and real ultrasound data.
Our research is driven by the motivation that change must be put in the center, if one wants to understand the complex processes of software evolution. We built a toolset named SpyWare which, using a monitoring plug-i...
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Our research is driven by the motivation that change must be put in the center, if one wants to understand the complex processes of software evolution. We built a toolset named SpyWare which, using a monitoring plug-in for integrated development environments (IDEs), tracks the changes that a developer performs on a program as they happen. SpyWare stores these first-class changes in a change repository and offers a plethora of productivity-enhancing IDE extensions to exploit the recorded information.
Motivation - To shed light on the conceptions of human network operators about autonomic functionalities and the determinants of trust regarding future autonomic networks. Research approach - An interview study with 3...
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ISBN:
(纸本)9781450317863
Motivation - To shed light on the conceptions of human network operators about autonomic functionalities and the determinants of trust regarding future autonomic networks. Research approach - An interview study with 33 human operators at non-managerial level was performed. the interview consisted of 19 questions related to various aspects of autonomic functionalities. Findings/Design - Several components of trust and distrust for autonomic functionalities were found. Distrust based on assumed failure of the functionalities was the most prominent negative feature. the possibility to concentrate on more demanding tasks was the most surprising positive feature. Research limitations/Implications - Only 33 human operators from two telecom companies participated in the study, which limits the possible generalisation of the findings. Originality/Value - the research makes a contribution to the scarce amount of publications on human aspect in telecommunication domain. Take away message - Trust-related factors can be used for identifying and extracting general requirements for future tools from the user point of view. Copyright 2012 ACM.
Surface-hardening process of steel materials by robot laser technologies can involve the challenge of modeling the determining process parameters through non-conventional tools in order to evaluate the quality of the ...
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Surface-hardening process of steel materials by robot laser technologies can involve the challenge of modeling the determining process parameters through non-conventional tools in order to evaluate the quality of the heat treatment. In the current study a new method based on fractal geometry, used to determine the microstructural properties of laser hardened steels manufactured by anthropomorphic robots, is presented. the assumptions were that the microstructure of laser hardened steel can be studied as a complex structural geometry and the modeling of the analyzed complex geometries can be made through genetic programming for prediction purposes. the effect of process parameters and their joint combination on the final microstructures geometry of the heat treated steel was investigated. In particular, the influence of temperature, laser beam velocity, and impact angle were studied since they were showed in a preliminary study to be the process parameters that most significantly influenced the quality of the heat treated steel. the developed model reached a precision of the prediction equal to 98.59 %. (C) 2021 the Authors. Published by Elsevier Ltd.
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