… the OLAP data model to represent data ambiguity, specifically imprecision and uncertainty,
… to the semantics of aggregation queries over such data. We identify three natural query …

… to the semantics of aggregation queries over such data. We identify three natural … data,
to our knowledge this is the first paper to handle both imprecision and uncertainty in an OLAP …

… In this paper, we introduce a novel framework for estimating OLAP queries over uncertain
and imprecise multidimensional data streams, along with three relevant research contributions…

… This because OLAP is able of supporting a number of analysis perspectives over such …
of research contributions focused on OLAP over uncertain and imprecise data, ranging from …

… to answer OLAP aggregation queries over imprecise data, in … Next, we prove that OLAP
queries can be answered efficiently … Extensive experiments over real-world and synthetic data …

… aggregating imprecise and uncertain data. Although a great deal of recent work has considered
uncertain data [16, 9, 7], this work has not considered OLAP-style aggregation queries. …

… of answering OLAP queries over uncertain and imprecise multidimensional data streams,
and … The solution to the problem of OLAPing uncertain and imprecise multidimensional data …

… uncertainty”, and examine common models related to value uncertainty as part of the OLAP
… approach for extending the OLAP model to include treatment of value uncertainty as part of a …

… Inspired by these motivations, in this chapter we provide a spectrum of research contributions
focused on OLAP over uncertain and imprecise relational data, ranging from theoretical …

… , imprecision appears. So, we need a model able to manage imprecision in the structures and
data. … in the definition of the hierarchies and the OLAP system that implements this model. …