High level data quality and the management of ensuring data quality is one of the key success factors for Data Warehousing projects. The following article describes an approach for Data Quality Management, which is based on theories as well as practical experiences. Starting from effects of insufficient data quality in practice, a definition for information, data and data quality will be worked...

In the last few decades, many numerical methods have been developed and employed to solve for various types of linear nonlinear equations due challenges in aspect implementation governing boundary conditions, computation time, algorithm complexity, accuracy, convergency, stability solution so on. Of open literature, differential quadrature (DQM), transform (DTM), finite difference (FDM) are exp...

This paper addresses the issue of perceptual image quality assessment in image restoration systems. Firstly, experiments are conducted to evaluate perceived quality in images degraded only by frequency distortion. Based on the resulting experimental data, a distortion quality measure (DQM) is proposed. Then another experiment, whose test images present frequency distortion and noise injection, ...

The differential quadrature method (DQM) has been so far applied to a wide variety of fluid and/or structural problems. The results of many researchers reveal that the DQM is computationally efficient and is applicable to a large class of boundary value problems. However, there is little information about its applications to fluidstructure interaction problems. Therefore, the purpose of this pa...

Abstract In the present paper, trigonometric B-spline DQM is applied to get approximated solution of coupled 2D non-linear Burgers’ equation. This technique, named modified cubic DQM, has been used obtain accurate and effective numerical approximations above-mentioned partial differential For checking compatibility results, different types test examples are discussed. A comparison done between ...

In the processes and optimization of information integration, such as query processing, query planning and hierarchical structuring of results to the user, we argue that user quality priorities, data inconsistencies and data quality differences among the participating sources have not been fully addressed. We propose the development of a Data Quality Manager (DQM) to establish communication bet...

In this paper, we use the example of the car manufacturing domain to illustrate how data quality problems are addressed in practice today. We then propose a process model for data quality management (DQM) which meets the requirements of the current ISO 9001 standard and thus introduces a methodological, processoriented approach to DQM. Data mining methods that are typically applied to find inte...

in this paper, nonlinear vibration and instability response of an embedded pipe conveying viscose fluid is investigated. the pipe is considered as a timoshenko beam embedded on an elastic foundation which is simulated by spring constant of the winkler-model and the shear constant of the pasternak-model. the external flow force, acting on the beam in the direction of the flexural displacement is...