Aiming towards the development of a general clustering theory, addressing issues that are common to the different clustering paradigms, we wish to initiate a systematic study of measures for the quality of a given data clustering. A clustering quality measure is a function that, given a data set and its partition into clusters, returns a non-negative real number representing the quality of that...

Big data and big data analytics have been the subject of a great deal of positive discussion, not only in traditionally upbeat popular management magazines but also in nominally scientific and therefore professionally sceptical academic journals. Research was undertaken to assess the impact on the quality of inferences drawn from big data of the quality of the underlying data and the quality of...

This paper measures quality of life (QoL) in the 393 largest Spanish municipalities in 2011. We follow recent descriptions of QoL dimensions to propose an integrated framework composed of eight dimensions: material living conditions, health, education, environment, economic and physical safety, governance and political voice, social interaction, and personal activities. Using different sources ...

The field of data quality management has long recognized the negative impact of data quality defects on decision quality. In many decision scenarios, this negative impact can be largely attributed to the mediating role played by decision-support models with defected data, the estimation of such a model becomes less reliable and, as a result, the likelihood of flawed decisions increases. Drawing...

Many models have been proposed for software reliability prediction, but none of these models could capture a necessary amount of software characteristic. We have proposed a mixed approach using both analytical and data driven models for finding the accuracy in reliability prediction involving case study. This report includes qualitative research strategy. Data is collected from the case study c...

Information quality frameworks are developed to measure the quality of information systems, generally from the designers’ viewpoint. The recent proliferation of e-services and e-learning particularly raises the need for a new quality framework in the context of e-learning systems. This paper proposes a new information quality framework, with 14 information quality attributes grouped in three qu...

OBJECTIVE To determine whether involvement in bullying as a bully, victim, or bully-victim was associated with a higher risk of poor sleep quality among high school students in China. METHODS A cross-sectional study was conducted. A total of 23,877 high school students were surveyed in six cities in Guangdong Province. All students were asked to complete the adolescent health status questionn...

While learning systems offer great promise in reducing cost and improving quality of control applications [12, 11], they also raise thorny issues in terms of the mismatch between the quality standards that these systems must achieve [10] and the available technology. There is widespread agreement [7, 8, 9, 12, 11] that current verification technology does not apply to online learning (i.e., ada...

As a communication vehicle among stakeholders, software architecture gives the entire view of the system’s major components, the behaviour of those components as visible to the rest of the system, and the ways in which these components interact and coordinate to achieve the system’s goal. The architecture determines the non-functional attributes of software systems that are built into quality m...

in metropolitan development management, quality of public services is influential in every public sector to satisfaction of citizens on quality of services. nowadays, satisfaction are with such important matters that should be considered in the planning, implementation, management and maintenance of many public services such as subway, transportation, traffics, parks, markets and so on. the pur...