Loss functions play a fundamental role in every quality engineering method. A new set of loss functions is proposed based on Taguchi’s societal loss concept. Its applications to robust parameter design are discussed in detail. The loss functions are shown to posses some interesting properties and lead to theoretical results that cannot be handled with other loss functions.

The study of the quality of electric power lines is usually known as Power Quality. Power quality problems are increasingly due to a proliferation of equipment that is sensitive and polluting at the same time. The detection and classification of the different disturbances which cause power quality problems is a difficult task which requires a high level of engineering knowledge. Thus, neural ne...

Data quality management is a pressing issue in the adoption and implementation of Business Intelligence system in every organisation. We believe that an extensive metadata infrastructure is the primary technical solution for management of data quality in Business Intelligence. We derived a set of data quality dimensions by carefully examining the data quality management principles and current B...

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...

INTRODUCTION: Navigator gating is a proven approach to reduce respiratory motion artifacts in free-breathing 3D MRI. Moreover, self-gating techniques to avoid steady state interruption [1, 2], and automatic navigator window selection of the most common respiratory phase [3], have been proposed. However, the most common respiratory position does not necessarily give the best image quality, as ha...

Multimediaapplicationsare characterized by QoS (quality of service) requirements which depend on the quality of video and audio transmitted to the client, and the respect of time constraints associated to video and audio data. Much work has been done in order to provide system support that meets these requirements. However, existing proposals do not integrate the consequence of failure occurren...

Purpose of this paper In this paper a brief overview of some proposals of portal quality models is presented and a comparative study is carried out with the objective of establishing the main differences between them, along with their common aspects. Design/methodology/approach In order to compare the different portal quality models, their main characteristics have been analysed and specially, ...

While middleware platforms have been established in besteffort environments nowadays, support for QoS-sensitive services is still found lacking. More specifically, due to the high diversity of QoS requirements, the abstractions provided for QoS-unaware services cannot be maintained and the developer has to face the difficulties of low-level networking in heterogeneous environments again. In thi...

An automated system that provides feedback about aesthetic quality of facial pictures could be of great interest for editing or selecting photos. Although image aesthetic quality assessment is a challenging task that requires understanding of subjective notions, the proposed work shows that facial image quality can be estimated by using low-level features only. This paper provides a method that...