Different ways of detecting structural changes in email-based social networks are presented in the paper. A social network chosen for experiments was created on the basis of the Wroclaw University of Technology email server logs covering the period of 20 months. Structural parameters like degree...

The domain of multi level forecast combination is a challenging new domain containing a large potential for forecast improvements. This thesis presents a theoretical and experimental analysis of different types of forecast diversification on forecast error covariances and resulting combined...

Organizations in the new millennium face relentless pressure to perform better, faster and cheaper, while maintaining high level of guaranteed results. To remain competitive, enterprises have to integrate their business processes with those of their customers, suppliers and business partners....

In electronic markets, the Internet creates new network structures that enable firms to integrate cross-functional activities at relatively low cost and eliminate non-value-adding activities. However, there is little empirical evidence on how structural characteristics of network organization...

Today software development has truly become a globally sourced commodity. This trend has been facilitated by the availability of highly skilled software professionals in low cost locations in Eastern Europe, Latin America and the Far East. Organisations endeavouring to leverage the opportunities...

In a globalised world economy, small and mediumsized companies (SMEs) are now entering the global software engineering (GSE) arena, but their involvement is more often opportunistic than carefully planned. Considered until a few years ago a major destination for outsourcing/offshoring, Ireland...

Software development has become a globally sourced commodity. Software development processes such as requirements elicitation, development of components and maintenance tasks are often distributed across sites and countries. This research paper focuses on the distribution of the testing process,...

The focus of this research is to outline the experience of a small-to-medium-sized European-based software development organization, utilizing the IDEALSM model while implementing a tailored Capability Maturity Model® (CMM®) software process improvement (SPI) program.[CMM is registered in the...

Estimation of the generalization ability of a predictive model is an important issue, as it indicates expected performance on previously unseen data and is also used for model selection. Currently used generalization error estimation procedures like cross–validation (CV) or bootstrap are...

There are no algorithms that generally perform better or worse than random when looking at all possible data sets according to the no-free-lunch theorem. A specific forecasting method will hence naturally have different performances in different empirical studies. This makes it impossible to...