DI SALERNO Dipartimento di Informatica

Despite modern technology provide new tools to measure the world around us, we are quickly generating massive amounts of high-dimensional, spatialtemporal data. In this work, I deal with two types of datasets: one in which the spatial characteristics are relatively dynamic and the data are sampled at different periods of time, and the other where many dimensions prevail, although the spatial characteristics are relatively static. The first dataset refers to a peculiar aspect of uncertainty arising from contractual relationships that regulate a project execution: the dispute management. In recent years there has been a growth in size and complexity of the projects managed by public or private organizations. This leads to increased probability of project failures, frequently due to the difficulty and the ability to achieve the objectives such as on-time delivery, cost containment, expected quality achievement. In particular, one of the most common causes of project failure is the very high degree of uncertainty that affects the expected performance of the project, especially when different stakeholders with divergent aims and goals are involved in the project. The second data set refers to a novel display of Digital Libraries (DL). DL allow to easily share the contribution of each individual researcher in the scientific community. Unfortunately, the webpage-based paradigm is a limit to the inquiry of current digital libraries. In recent years, in order to allow the user to quickly collect a set of documents judged as useful for his/her research, several visual approaches have been proposed. This thesis deals with two main issues. The first regards the analysis of the possibilities offered by a 3D novel visualization technique 3DRC to represent and analyze the problem of diverging stakeholders views during a