During the last decades, data management and storage have become increasingly
distributed. Advanced query operators, such as skyline queries, are necessary in order to …

Living in the Information Age allows almost everyone have access to a large amount of
information and options to choose from in order to fulfill their needs. In many cases, the …

This paper tackles a major privacy threat in current location-based services where users
have to report their exact locations to the database server in order to obtain their desired …

Uncertain data are inherent in some important applications. Although a considerable
amount of research has been dedicated to modeling uncertain data and answering some …

Skyline computation has many applications including multi-criteria decision making. In this
paper, we study the problem of selecting k skyline points so that the number of points, which …

In this paper, for the first time, we introduce the concept of Spatial Skyline Queries (SSQ).
Given a set of data points P and a set of query points Q, each data point has a number of …

The maximal vector problem is to identify the maximals over a collection of vectors. This
arises in many contexts and, as such, has been well studied. The problem recently gained …

Given a set of multidimensional data points, skyline query retrieves a set of data points that
are not dominated by any other points. This query is useful for multi-preference analysis and …

In recent years, the research community introduced various methods for processing skyline
queries in multidimensional databases. The skyline operator retrieves all objects being …

The top-k dominating query returns k data objects which dominate the highest number of
objects in a dataset. This query is an important tool for decision support since it provides …