A data warehouse is a database focused on decision making. It is built separately from the transactional (OLTP) databases of the enterprise, although it is partly fed from transactional data. Data warehouses are typically accessed by decision makers using OLAP tools, based on a specific, multidimensional representation of data. Considering the strategic importance of data warehouses, the qualit...

AIM Colonoscopy has become accepted as the most effective method for colon exploration. Some application problems have been detected in the setting of normal clinical care due to its wide range of uses in recent years, and therefore there is a need to measure colonoscopy quality. For that purpose valid quality indicators are necessary to be defined. The application process of some quality indic...

Much work has been done at examining, at many different layers , features and metrics to quantify and compensate as an effort to improve player reaction in the online environment. The focus on distributed interactive applications and the adaptation of the application at both client and server has changed the way games are designed and developed for online purposes. In order to maintain a large ...

Content-aware image retargeting is a technique that can flexibly display images with different aspect ratios and simultaneously preserve salient regions in images. Recently many image retargeting techniques have been proposed. To compare image quality by different retargeting methods fast and reliably, an objective metric simulating the human vision system (HVS) is presented in this paper. Diff...

Data Quality Assessment Yuri A.W. Shardt Data quality assessment seeks to provide a framework for determining the quality of stored data for use in process system identification. The benefit of using historical data for identification is that the potential exists for developing models without needing new (open-loop) tests. This can reduce the costs associated with process identification, as the...

The definition of quality of life is complex and often depends on the investigator or organization (Dijkers 1999). The World Health Organization defines health as “a state of complete physical/mental, social well-being and not merely the absence of disease or infirmity” (World Health Organization 1947). Conceptually, quality of life can be divided into health-related (with physical, psychologic...

This chapter provides an overview of the various methods and techniques used for assessment of speech quality. A summary is given of some of the most commonly used listening tests designed to obtain reliable ratings of the quality of processed speech from human listeners. Considerations for conducting successful subjective listening tests are given along with cautions that need to be exercised....

The article presents a hierarchical framework, which supports website quality assessment. The framework is composed of a hierarchical structure of criteria and subcriteria and makes use of the Analytic Hierarchy Process to enhance criterion and subcriterion weight value assessment. To validate the framework we conducted an experiment, which involved the assessment of the websites of the three c...

Image Quality assessment plays an important role in various image processing applications. It is still an active field of research. A great deal of effort has been made in recent years to develop objective image quality metrics that correlate well with perceived human quality measurement or subjective methods. Most full reference(FR) technique were derived based on pixel to pixel error such as ...