We review the definition of evolvability as it appears on the literature. In particular, the concept of software evolvability is compared with other system quality attributes, such as adaptability, maintainability and modifiability.

This paper incorporates a rich set of physical water quality attributes, as well as site and household characteristics, into a model of recreational lake usage in Iowa. Our analysis shows individuals are responsive to physical water quality measures. Willingness-to-pay estimates are reported based on improvements in these measures.

living in satisfying urban environments is important for an individual’s well-being. in order to create such environments, planners, designers, and policy makers need to understand the structures that cause residents to feel satisfied with their environments. this paper focuses on the perceived quality of urban residential environments: dwellings and neighborhoods. first, literature review was ...

The Internet has become an important resource for information. The Internet presents information through web pages and hyperlinks. However, this mode of presentation is not always useful for every purpose. Internet searches are designed to locate and to present information more effectively. The efficiency and usefulness of Internet searches are becoming more and more dependent on the design of ...

Image quality assessment is a difficult and complex task. Quality attributes have been used in the evaluation of perceived image quality in an attempt to reduce the complexity and the dimensionality. Recently, Pedersen et al. (CIC, 2009) proposed a set of quality attributes for the evaluation of color prints. In this paper we perform an experimental validation of these quality attributes to ens...

This article presents a filter-wrapper based feature ranking technique that is able to learn and rank quality attributes according to new cases of software quality assessment data. The proposed feature ranking technique consists of a scoring method named Most Priority of Feature (MPF) and a learning algorithm to learn the software quality attribute weights. The existing ranking techniques do no...

Evaluation of perceived image quality in color prints is a complex task, due to its subjectivity and dimensionality. Perceived image quality is influenced by a number of quality attributes. Evaluation of all attributes influence, and their influence on other attributes, is is a difficult and complex task. Because of this the most important attributes should be identified in order to achieve a m...

An application-specific perceptual evaluation was carried out in order to compare six high-quality German text-to-speech systems. Subjects judged the systems’ reading of an email message and a newspaper article according to four applicationspecific questions and six voice quality attributes. The results indicate significant differences between the systems. Possible applications of the systems w...

The perceptual accuracy of an all-pole representation of the spectral envelope of voiced sounds may be enhanced by the use of frequency-scale warping prior to LP modeling. For the representation of harmonic amplitudes in the sinusoidal coding of voiced sounds, the effectiveness of frequency warping was shown to depend on the underlying signal spectral shape as determined by phoneme quality. In ...